Remove asDataFetcherResult

* Update javalin to v7

* Update Javalin usage to v7 and Jackson 3

* Import fix

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Syer10 <syer10@users.noreply.github.com>

.github/workflows/build_push.yml

@@ -54,14 +54,14 @@ jobs:
         run: ./gradlew :server:shadowJar --stacktrace
 
       - name: Upload Jar
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: jar
           path: master/server/build/*.jar
           if-no-files-found: error
 
       - name: Upload icons
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: icon
           path: master/server/src/main/resources/icon
@@ -71,7 +71,7 @@ jobs:
         run: tar -cvzf scripts.tar.gz -C master/ scripts/
 
       - name: Upload scripts.tar.gz
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: scripts
           path: scripts.tar.gz
@@ -103,7 +103,7 @@ jobs:
         run: jlink --add-modules java.base,java.compiler,java.datatransfer,java.desktop,java.instrument,java.logging,java.management,java.naming,java.prefs,java.scripting,java.se,java.security.jgss,java.security.sasl,java.sql,java.transaction.xa,java.xml,jdk.attach,jdk.crypto.ec,jdk.jdi,jdk.management,jdk.net,jdk.unsupported,jdk.unsupported.desktop,jdk.zipfs,jdk.accessibility --output suwa --strip-debug --no-man-pages --no-header-files --compress=2
 
       - name: Upload JRE package
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: ${{ matrix.name }}-jre
           path: suwa
@@ -134,26 +134,26 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download Jar
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: jar
           path: server/build
 
       - name: Download JRE
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         if: matrix.name != 'linux-assets' && matrix.name != 'debian-all'
         with:
           name: ${{ matrix.jre }}-jre
           path: jre
 
       - name: Download icons
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: icon
           path: server/src/main/resources/icon
 
       - name: Download scripts.tar.gz
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: scripts
 
@@ -164,7 +164,7 @@ jobs:
           scripts/bundler.sh -o upload/ ${{ matrix.name }}
 
       - name: Upload ${{ matrix.name }} release
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: ${{ matrix.name }}
           path: upload/*
@@ -174,35 +174,35 @@ jobs:
     needs: bundle
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: jar
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: debian-all
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: appimage
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: linux-assets
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: linux-x64
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: macOS-x64
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: macOS-arm64
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: windows-x64
           path: release
@@ -240,7 +240,7 @@ jobs:
           git push origin $TAG
 
       - name: Upload Preview Release
-        uses: softprops/action-gh-release@v2
+        uses: softprops/action-gh-release@v3
         with:
           token: ${{ secrets.DEPLOY_PREVIEW_TOKEN }}
           repository: "Suwayomi/Suwayomi-Server-preview"

.github/workflows/publish.yml

@@ -56,14 +56,14 @@ jobs:
         run: ./gradlew :server:downloadWebUI :server:shadowJar --stacktrace
 
       - name: Upload Jar
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: jar
           path: master/server/build/*.jar
           if-no-files-found: error
 
       - name: Upload icons
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: icon
           path: master/server/src/main/resources/icon
@@ -73,7 +73,7 @@ jobs:
         run: tar -cvzf scripts.tar.gz -C master/ scripts/
 
       - name: Upload scripts.tar.gz
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: scripts
           path: scripts.tar.gz
@@ -105,7 +105,7 @@ jobs:
         run: jlink --add-modules java.base,java.compiler,java.datatransfer,java.desktop,java.instrument,java.logging,java.management,java.naming,java.prefs,java.scripting,java.se,java.security.jgss,java.security.sasl,java.sql,java.transaction.xa,java.xml,jdk.attach,jdk.crypto.ec,jdk.jdi,jdk.management,jdk.net,jdk.unsupported,jdk.unsupported.desktop,jdk.zipfs,jdk.accessibility --output suwa --strip-debug --no-man-pages --no-header-files --compress=2
 
       - name: Upload JDK package
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: ${{ matrix.name }}-jre
           path: suwa
@@ -136,26 +136,26 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download Jar
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: jar
           path: server/build
 
       - name: Download JRE
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         if: matrix.name != 'linux-assets' && matrix.name != 'debian-all'
         with:
           name: ${{ matrix.jre }}-jre
           path: jre
 
       - name: Download icons
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: icon
           path: server/src/main/resources/icon
 
       - name: Download scripts.tar.gz
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: scripts
 
@@ -166,7 +166,7 @@ jobs:
           scripts/bundler.sh -o upload/ ${{ matrix.name }}
 
       - name: Upload ${{ matrix.name }} files
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: ${{ matrix.name }}
           path: upload/*
@@ -177,35 +177,35 @@ jobs:
     needs: bundle
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: jar
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: debian-all
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: appimage
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: linux-assets
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: linux-x64
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: macOS-x64
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: macOS-arm64
           path: release
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: windows-x64
           path: release
@@ -214,7 +214,7 @@ jobs:
         run: cd release && sha256sum * > Checksums.sha256
 
       - name: Release
-        uses: softprops/action-gh-release@v2
+        uses: softprops/action-gh-release@v3
         with:
           token: ${{ secrets.DEPLOY_RELEASE_TOKEN }}
           draft: true

CHANGELOG.md

@@ -13,7 +13,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 - .
 
 ### Fixed
-- .
+- (WebUI) Handle serving non-default webui with "bundled"
 
 ## [v2.2.2100] + [WebUI: v20260508.01] - 2026-05-08
 
@@ -89,7 +89,7 @@ See our [conversion server](https://github.com/Suwayomi/Suwayomi-converter) for
 - (**Cloudflare/flaresolverr**) Fix sending POST requests as GET to flaresolverr
 
 ### WebUI
-- [See WebUI changes here][WebUI: v20250703.01]
+- [See WebUI changes here][WebUI: v20260508.01]
 
 ### Contributors
 @cpiber, @Syer10, @lamaxama, @schroda, @AwkwardPeak7, @ItsGlassPlus1, @manti-X, @Youwes09, @renovate[bot], @D-Brox, @weblate, @Micka149, @TheRay82, @UnknownSkyrimPasserby, @KaceyKoo-gif, @333fred, @KolbyML, @Robonau, @ornaras, @SpicyCatGames, @FadedSociety, @ginocic, @zeedif, @CzechuPL, @mrintrepide, @renjfk, @thiagoalcr, @Smileskun, @dejavui, @allrobot

README.md

@@ -76,9 +76,9 @@ These clients are built-in options, and the server can keep them automatically u
 - [Suwayomi-WebUI](https://github.com/Suwayomi/Suwayomi-WebUI): Web app, PWA
 - [Suwayomi-VUI](https://github.com/Suwayomi/Suwayomi-VUI): Web app, PWA
 
-##### Other clients (potentially inactive or abondend)
+##### Other clients (potentially inactive or abandoned)
 - [Tachidesk-VaadinUI](https://github.com/Suwayomi/Tachidesk-VaadinUI): Desktop app (windows, linux, mac); UI in the browser, manages its own suwayomi server instance
-- [Moku](https://github.com/Youwes09/Moku): Desktop app (windows, linux, mac), requires access to a running server
+- [Moku](https://github.com/Youwes09/Moku): Desktop app (windows, linux, mac), can manage its own suwayomi server instance
 - [Tachidesk-JUI](https://github.com/Suwayomi/Tachidesk-JUI): Desktop app (windows, linux, mac); can manage its own suwayomi server instance
 - [Tachidesk-Sorayomi](https://github.com/Suwayomi/Tachidesk-Sorayomi): Web app; Desktop app (windows, linux, mac); Android app; requires access to a running server
 - [Tachidesk-qtui](https://github.com/Suwayomi/Tachidesk-qtui): Android app; iOS app Desktop app (linux); requires access to a running server

build.gradle.kts

@@ -53,7 +53,7 @@ subprojects {
             }
             compilerOptions {
                 jvmTarget = JvmTarget.fromTarget(libs.versions.jvmTarget.get())
-                freeCompilerArgs.add("-Xcontext-receivers")
+                freeCompilerArgs.add("-Xcontext-parameters")
             }
         }
     }

gradle/libs.versions.toml

@@ -1,22 +1,22 @@
 [versions]
-kotlin = "2.3.10"
+kotlin = "2.3.21"
-coroutines = "1.10.2"
+coroutines = "1.11.0"
-serialization = "1.10.0"
+serialization = "1.11.0"
 jvmTarget = "21"
 okhttp = "5.3.2" # Major version is locked by Tachiyomi extensions
-javalin = "6.7.0"
+javalin = "7.2.0"
-jte = "3.2.3"
+jte = "3.2.4"
-jackson = "2.18.3" # jackson version locked by javalin, ref: `io.javalin.core.util.OptionalDependency`
+jackson = "3.1.2" # jackson version locked by javalin, ref: `io.javalin.core.util.OptionalDependency`
 exposed = "0.61.0"
-dex2jar = "2.4.34"
+dex2jar = "2.4.36"
-polyglot = "24.2.2"
+polyglot = "25.0.3"
 settings = "1.3.0"
-twelvemonkeys = "3.13.0"
+twelvemonkeys = "3.13.1"
-graphqlkotlin = "8.8.1"
+graphqlkotlin = "10.0.0-alpha.3"
 xmlserialization = "0.91.3"
 ktlint = "1.8.0"
-koin = "4.1.1"
+koin = "4.2.1"
-moko = "0.26.0"
+moko = "0.26.4"
 
 [libraries]
 # Kotlin
@@ -39,22 +39,22 @@ serialization-xml = { module = "io.github.pdvrieze.xmlutil:serialization-jvm", v
 # Logging
 slf4japi = "org.slf4j:slf4j-api:2.0.17"
 logback = "ch.qos.logback:logback-classic:1.5.32"
-kotlinlogging = "io.github.oshai:kotlin-logging-jvm:8.0.01"
+kotlinlogging = "io.github.oshai:kotlin-logging-jvm:8.0.02"
 
 # OkHttp
 okhttp-core = { module = "com.squareup.okhttp3:okhttp", version.ref = "okhttp" }
 okhttp-logging = { module = "com.squareup.okhttp3:logging-interceptor", version.ref = "okhttp" }
 okhttp-dnsoverhttps = { module = "com.squareup.okhttp3:okhttp-dnsoverhttps", version.ref = "okhttp" }
 okhttp-brotli = { module = "com.squareup.okhttp3:okhttp-brotli", version.ref = "okhttp" }
-okio = "com.squareup.okio:okio:3.16.4"
+okio = "com.squareup.okio:okio:3.17.0"
 
 # Javalin api
 javalin-core = { module = "io.javalin:javalin", version.ref = "javalin" }
 javalin-openapi = { module = "io.javalin:javalin-openapi", version.ref = "javalin" }
-javalin-rendering = { module = "io.javalin:javalin-rendering", version.ref = "javalin" }
+javalin-rendering = { module = "io.javalin:javalin-rendering-jte", version.ref = "javalin" }
-jackson-databind = { module = "com.fasterxml.jackson.core:jackson-databind", version.ref = "jackson" }
+jackson-databind = { module = "tools.jackson.core:jackson-databind", version.ref = "jackson" }
-jackson-kotlin = { module = "com.fasterxml.jackson.module:jackson-module-kotlin", version.ref = "jackson" }
+jackson-kotlin = { module = "tools.jackson.module:jackson-module-kotlin", version.ref = "jackson" }
-jackson-annotations = { module = "com.fasterxml.jackson.core:jackson-annotations", version.ref = "jackson" }
+jackson-annotations = "com.fasterxml.jackson.core:jackson-annotations:2.20"
 jte = { module = "gg.jte:jte", version.ref = "jte" }
 kte = { module = "gg.jte:jte-kotlin", version.ref = "jte" }
 
@@ -68,7 +68,7 @@ exposed-core = { module = "org.jetbrains.exposed:exposed-core", version.ref = "e
 exposed-dao = { module = "org.jetbrains.exposed:exposed-dao", version.ref = "exposed" }
 exposed-jdbc = { module = "org.jetbrains.exposed:exposed-jdbc", version.ref = "exposed" }
 exposed-javatime = { module = "org.jetbrains.exposed:exposed-java-time", version.ref = "exposed" }
-postgres = "org.postgresql:postgresql:42.7.10"
+postgres = "org.postgresql:postgresql:42.7.11"
 h2 = "com.h2database:h2:1.4.200" # current database driver, can't update to h2 v2 without sql migration
 hikaricp = "com.zaxxer:HikariCP:7.0.2"
 
@@ -86,10 +86,10 @@ systemtray-desktop = "com.dorkbox:Desktop:1.1" # version locked by SystemTray
 # dependencies of Tachiyomi extensions
 injekt = "com.github.null2264:injekt-koin:ee267b2e27"
 rxjava = "io.reactivex:rxjava:1.3.8"
-jsoup = "org.jsoup:jsoup:1.22.1"
+jsoup = "org.jsoup:jsoup:1.22.2"
 
 # Config
-config = "com.typesafe:config:1.4.5"
+config = "com.typesafe:config:1.4.8"
 config4k = "io.github.config4k:config4k:0.7.0"
 
 # Sort
@@ -105,7 +105,7 @@ dex2jar-tools = { module = "de.femtopedia.dex2jar:dex-tools", version.ref = "dex
 
 # APK
 apk-parser = "net.dongliu:apk-parser:2.6.10"
-apksig = "com.android.tools.build:apksig:9.0.1"
+apksig = "com.android.tools.build:apksig:9.2.1"
 
 # Xml
 xmlpull = "xmlpull:xmlpull:1.1.3.4a"
@@ -115,13 +115,13 @@ appdirs = "ca.gosyer:kotlin-multiplatform-appdirs:2.0.0"
 cache4k = "io.github.reactivecircus.cache4k:cache4k:0.14.0"
 zip4j = "net.lingala.zip4j:zip4j:2.11.6"
 commonscompress = "org.apache.commons:commons-compress:1.28.0"
-junrar = "com.github.junrar:junrar:7.5.7"
+junrar = "com.github.junrar:junrar:7.5.10"
 
 # AES/CBC/PKCS7Padding Cypher provider
-bouncycastle = "org.bouncycastle:bcprov-jdk18on:1.83"
+bouncycastle = "org.bouncycastle:bcprov-jdk18on:1.84"
 
 # AndroidX annotations
-android-annotations = "androidx.annotation:annotation:1.9.1"
+android-annotations = "androidx.annotation:annotation:1.10.0"
 
 # Substitute for duktape-android
 polyglot-core = { module = "org.graalvm.polyglot:polyglot", version.ref = "polyglot" }
@@ -132,7 +132,7 @@ settings-core = { module = "com.russhwolf:multiplatform-settings-jvm", version.r
 settings-serialization = { module = "com.russhwolf:multiplatform-settings-serialization-jvm", version.ref = "settings" }
 
 # ICU4J
-icu4j = "com.ibm.icu:icu4j:78.2"
+icu4j = "com.ibm.icu:icu4j:78.3"
 
 # Image Decoding implementation provider
 twelvemonkeys-common-lang = { module = "com.twelvemonkeys.common:common-lang", version.ref = "twelvemonkeys" }
@@ -158,7 +158,7 @@ cronUtils = "com.cronutils:cron-utils:9.2.1"
 kcef = "dev.datlag:kcef:2024.04.20.4"
 
 # User
-jwt = "com.auth0:java-jwt:4.5.1"
+jwt = "com.auth0:java-jwt:4.5.2"
 
 # lint - used for renovate to update ktlint version
 ktlint = { module = "com.pinterest.ktlint:ktlint-cli", version.ref = "ktlint" }
@@ -173,16 +173,16 @@ kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", versi
 kotlin-multiplatform = { id = "org.jetbrains.kotlin.multiplatform", version.ref = "kotlin"}
 
 # Linter
-ktlint = { id = "org.jlleitschuh.gradle.ktlint", version = "14.0.1"}
+ktlint = { id = "org.jlleitschuh.gradle.ktlint", version = "14.2.0"}
 
 # Build config
-buildconfig = { id = "com.github.gmazzo.buildconfig", version = "6.0.7"}
+buildconfig = { id = "com.github.gmazzo.buildconfig", version = "6.0.9"}
 
 # Download
 download = { id = "de.undercouch.download", version = "5.7.0"}
 
 # ShadowJar
-shadowjar = { id = "com.gradleup.shadow", version = "8.3.9"}
+shadowjar = { id = "com.gradleup.shadow", version = "8.3.10"}
 
 # Moko
 moko = { id = "dev.icerock.mobile.multiplatform-resources", version.ref = "moko" }

gradle/wrapper/gradle-wrapper.properties

@@ -1,7 +1,9 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.5.0-bin.zip
 networkTimeout=10000
+retries=0
+retryBackOffMs=500
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -57,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/3d91ce3b8caaf77ad09f381f43615b715b53f72c/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.

gradlew.bat

@@ -23,8 +23,8 @@
 @rem
 @rem ##########################################################################
 
-@rem Set local scope for the variables with windows NT shell
+@rem Set local scope for the variables, and ensure extensions are enabled
-if "%OS%"=="Windows_NT" setlocal
+setlocal EnableExtensions
 
 set DIRNAME=%~dp0
 if "%DIRNAME%"=="" set DIRNAME=.
@@ -51,7 +51,7 @@ echo. 1>&2
 echo Please set the JAVA_HOME variable in your environment to match the 1>&2
 echo location of your Java installation. 1>&2
 
-goto fail
+"%COMSPEC%" /c exit 1
 
 :findJavaFromJavaHome
 set JAVA_HOME=%JAVA_HOME:"=%
@@ -65,7 +65,7 @@ echo. 1>&2
 echo Please set the JAVA_HOME variable in your environment to match the 1>&2
 echo location of your Java installation. 1>&2
 
-goto fail
+"%COMSPEC%" /c exit 1
 
 :execute
 @rem Setup the command line
@@ -73,21 +73,10 @@ goto fail
 
 
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+@rem endlocal doesn't take effect until after the line is parsed and variables are expanded
+@rem which allows us to clear the local environment before executing the java command
+endlocal & "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %* & call :exitWithErrorLevel
 
-:end
+:exitWithErrorLevel
-@rem End local scope for the variables with windows NT shell
+@rem Use "%COMSPEC%" /c exit to allow operators to work properly in scripts
-if %ERRORLEVEL% equ 0 goto mainEnd
+"%COMSPEC%" /c exit %ERRORLEVEL%
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-set EXIT_CODE=%ERRORLEVEL%
-if %EXIT_CODE% equ 0 set EXIT_CODE=1
-if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
-exit /b %EXIT_CODE%
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega

server/src/main/kotlin/eu/kanade/tachiyomi/network/OkHttpExtensions.kt

@@ -140,17 +140,16 @@ fun OkHttpClient.newCachelessCallWithProgress(
     return progressClient.newCall(request)
 }
 
-context(Json)
+context(_: Json)
 inline fun <reified T> Response.parseAs(): T = decodeFromJsonResponse(serializer(), this)
 
-@OptIn(ExperimentalSerializationApi::class)
+context(json: Json)
-context(Json)
 fun <T> decodeFromJsonResponse(
     deserializer: DeserializationStrategy<T>,
     response: Response,
 ): T =
     response.body.source().use {
-        decodeFromBufferedSource(deserializer, it)
+        json.decodeFromBufferedSource(deserializer, it)
     }
 
 class HttpException(

server/src/main/kotlin/suwayomi/tachidesk/global/impl/WebView.kt

@@ -6,7 +6,7 @@ import io.javalin.websocket.WsMessageContext
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
-import org.eclipse.jetty.websocket.api.CloseStatus
+import org.eclipse.jetty.websocket.core.CloseStatus
 import suwayomi.tachidesk.manga.impl.update.Websocket
 
 object WebView : Websocket<String>() {

server/src/main/kotlin/suwayomi/tachidesk/graphql/AsDataFetcherResult.kt

@@ -1,27 +0,0 @@
-package suwayomi.tachidesk.graphql
-
-import com.expediagroup.graphql.server.extensions.toGraphQLError
-import graphql.execution.DataFetcherResult
-import io.github.oshai.kotlinlogging.KotlinLogging
-
-val logger = KotlinLogging.logger { }
-
-inline fun <T> asDataFetcherResult(block: () -> T): DataFetcherResult<T?> {
-    val result =
-        runCatching {
-            block()
-        }
-
-    if (result.isFailure) {
-        logger.error(result.exceptionOrNull()) { "asDataFetcherResult: failed due to" }
-        return DataFetcherResult
-            .newResult<T?>()
-            .error(result.exceptionOrNull()?.toGraphQLError())
-            .build()
-    }
-
-    return DataFetcherResult
-        .newResult<T?>()
-        .data(result.getOrNull())
-        .build()
-}

server/src/main/kotlin/suwayomi/tachidesk/graphql/cache/CustomCacheMap.kt

@@ -3,12 +3,8 @@ package suwayomi.tachidesk.graphql.cache
 import org.dataloader.CacheMap
 import java.util.concurrent.CompletableFuture
 
-class CustomCacheMap<K, V> : CacheMap<K, V> {
+class CustomCacheMap<K : Any, V : Any> : CacheMap<K, V> {
-    private val cache: MutableMap<K, CompletableFuture<V>>
+    private val cache: MutableMap<K, CompletableFuture<V>> = HashMap()
-
-    init {
-        cache = HashMap()
-    }
 
     override fun containsKey(key: K): Boolean = cache.containsKey(key)
 
@@ -18,12 +14,12 @@ class CustomCacheMap<K, V> : CacheMap<K, V> {
 
     override fun getAll(): Collection<CompletableFuture<V>> = cache.values
 
-    override fun set(
+    override fun putIfAbsentAtomically(
         key: K,
         value: CompletableFuture<V>,
-    ): CacheMap<K, V> {
+    ): CompletableFuture<V> {
         cache[key] = value
-        return this
+        return value
     }
 
     override fun delete(key: K): CacheMap<K, V> {
@@ -35,4 +31,6 @@ class CustomCacheMap<K, V> : CacheMap<K, V> {
         cache.clear()
         return this
     }
+
+    override fun size(): Int = cache.size
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/dataLoaders/ChapterDataLoader.kt

@@ -24,11 +24,11 @@ import suwayomi.tachidesk.graphql.types.ChapterType
 import suwayomi.tachidesk.manga.model.table.ChapterTable
 import suwayomi.tachidesk.server.JavalinSetup.future
 
-class ChapterDataLoader : KotlinDataLoader<Int, ChapterType?> {
+class ChapterDataLoader : KotlinDataLoader<Int, ChapterType> {
     override val dataLoaderName = "ChapterDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType> =
-        DataLoaderFactory.newDataLoader<Int, ChapterType> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -48,7 +48,7 @@ class ChaptersForMangaDataLoader : KotlinDataLoader<Int, ChapterNodeList> {
     override val dataLoaderName = "ChaptersForMangaDataLoader"
 
     override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterNodeList> =
-        DataLoaderFactory.newDataLoader<Int, ChapterNodeList> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -68,7 +68,7 @@ class DownloadedChapterCountForMangaDataLoader : KotlinDataLoader<Int, Int> {
     override val dataLoaderName = "DownloadedChapterCountForMangaDataLoader"
 
     override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, Int> =
-        DataLoaderFactory.newDataLoader<Int, Int> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -90,7 +90,7 @@ class UnreadChapterCountForMangaDataLoader : KotlinDataLoader<Int, Int> {
     override val dataLoaderName = "UnreadChapterCountForMangaDataLoader"
 
     override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, Int> =
-        DataLoaderFactory.newDataLoader<Int, Int> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -112,7 +112,7 @@ class BookmarkedChapterCountForMangaDataLoader : KotlinDataLoader<Int, Int> {
     override val dataLoaderName = "BookmarkedChapterCountForMangaDataLoader"
 
     override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, Int> =
-        DataLoaderFactory.newDataLoader<Int, Int> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -157,11 +157,11 @@ class HasDuplicateChaptersForMangaDataLoader : KotlinDataLoader<Int, Boolean> {
         }
 }
 
-class LastReadChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType?> {
+class LastReadChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType> {
     override val dataLoaderName = "LastReadChapterForMangaDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType> =
-        DataLoaderFactory.newDataLoader<Int, ChapterType?> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -177,11 +177,11 @@ class LastReadChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType?> {
         }
 }
 
-class LatestReadChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType?> {
+class LatestReadChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType> {
     override val dataLoaderName = "LatestReadChapterForMangaDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType> =
-        DataLoaderFactory.newDataLoader<Int, ChapterType?> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -197,11 +197,11 @@ class LatestReadChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType?>
         }
 }
 
-class LatestFetchedChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType?> {
+class LatestFetchedChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType> {
     override val dataLoaderName = "LatestFetchedChapterForMangaDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType> =
-        DataLoaderFactory.newDataLoader<Int, ChapterType?> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -217,11 +217,11 @@ class LatestFetchedChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType
         }
 }
 
-class LatestUploadedChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType?> {
+class LatestUploadedChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType> {
     override val dataLoaderName = "LatestUploadedChapterForMangaDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType> =
-        DataLoaderFactory.newDataLoader<Int, ChapterType?> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -237,11 +237,11 @@ class LatestUploadedChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterTyp
         }
 }
 
-class FirstUnreadChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType?> {
+class FirstUnreadChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType> {
     override val dataLoaderName = "FirstUnreadChapterForMangaDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType> =
-        DataLoaderFactory.newDataLoader<Int, ChapterType?> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -257,11 +257,11 @@ class FirstUnreadChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType?>
         }
 }
 
-class HighestNumberedChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType?> {
+class HighestNumberedChapterForMangaDataLoader : KotlinDataLoader<Int, ChapterType> {
     override val dataLoaderName = "HighestNumberedChapterForMangaDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, ChapterType> =
-        DataLoaderFactory.newDataLoader<Int, ChapterType?> { ids ->
+        DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)

server/src/main/kotlin/suwayomi/tachidesk/graphql/dataLoaders/ExtensionDataLoader.kt

@@ -20,10 +20,10 @@ import suwayomi.tachidesk.manga.model.table.ExtensionTable
 import suwayomi.tachidesk.manga.model.table.SourceTable
 import suwayomi.tachidesk.server.JavalinSetup.future
 
-class ExtensionDataLoader : KotlinDataLoader<String, ExtensionType?> {
+class ExtensionDataLoader : KotlinDataLoader<String, ExtensionType> {
     override val dataLoaderName = "ExtensionDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<String, ExtensionType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<String, ExtensionType> =
         DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
@@ -40,10 +40,10 @@ class ExtensionDataLoader : KotlinDataLoader<String, ExtensionType?> {
         }
 }
 
-class ExtensionForSourceDataLoader : KotlinDataLoader<Long, ExtensionType?> {
+class ExtensionForSourceDataLoader : KotlinDataLoader<Long, ExtensionType> {
     override val dataLoaderName = "ExtensionForSourceDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Long, ExtensionType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Long, ExtensionType> =
         DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {

server/src/main/kotlin/suwayomi/tachidesk/graphql/dataLoaders/MangaDataLoader.kt

@@ -25,10 +25,10 @@ import suwayomi.tachidesk.manga.model.table.CategoryMangaTable
 import suwayomi.tachidesk.manga.model.table.MangaTable
 import suwayomi.tachidesk.server.JavalinSetup.future
 
-class MangaDataLoader : KotlinDataLoader<Int, MangaType?> {
+class MangaDataLoader : KotlinDataLoader<Int, MangaType> {
     override val dataLoaderName = "MangaDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, MangaType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Int, MangaType> =
         DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {
@@ -122,6 +122,6 @@ class MangaForIdsDataLoader : KotlinDataLoader<List<Int>, MangaNodeList> {
                     }
                 }
             },
-            DataLoaderOptions.newOptions().setCacheMap(CustomCacheMap<List<Int>, MangaNodeList>()),
+            DataLoaderOptions.newOptions().setCacheMap(CustomCacheMap<List<Int>, MangaNodeList>()).build(),
         )
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/dataLoaders/MetaDataLoader.kt

@@ -20,11 +20,11 @@ import suwayomi.tachidesk.manga.model.table.MangaMetaTable
 import suwayomi.tachidesk.manga.model.table.SourceMetaTable
 import suwayomi.tachidesk.server.JavalinSetup.future
 
-class GlobalMetaDataLoader : KotlinDataLoader<String, GlobalMetaType?> {
+class GlobalMetaDataLoader : KotlinDataLoader<String, GlobalMetaType> {
     override val dataLoaderName = "GlobalMetaDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<String, GlobalMetaType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<String, GlobalMetaType> =
-        DataLoaderFactory.newDataLoader<String, GlobalMetaType?> { ids ->
+        DataLoaderFactory.newDataLoader<String, GlobalMetaType> { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)

server/src/main/kotlin/suwayomi/tachidesk/graphql/dataLoaders/SourceDataLoader.kt

@@ -22,10 +22,10 @@ import suwayomi.tachidesk.manga.model.table.ExtensionTable
 import suwayomi.tachidesk.manga.model.table.SourceTable
 import suwayomi.tachidesk.server.JavalinSetup.future
 
-class SourceDataLoader : KotlinDataLoader<Long, SourceType?> {
+class SourceDataLoader : KotlinDataLoader<Long, SourceType> {
     override val dataLoaderName = "SourceDataLoader"
 
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Long, SourceType?> =
+    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<Long, SourceType> =
         DataLoaderFactory.newDataLoader { ids ->
             future {
                 transaction {

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/BackupMutation.kt

@@ -1,3 +1,5 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import com.expediagroup.graphql.generator.annotations.GraphQLDeprecated

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/CategoryMutation.kt

@@ -1,3 +1,5 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import graphql.execution.DataFetcherResult
@@ -15,7 +17,6 @@ import org.jetbrains.exposed.sql.or
 import org.jetbrains.exposed.sql.selectAll
 import org.jetbrains.exposed.sql.transactions.transaction
 import org.jetbrains.exposed.sql.update
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.CategoryMetaType
 import suwayomi.tachidesk.graphql.types.CategoryType
@@ -42,14 +43,13 @@ class CategoryMutation {
     )
 
     @RequireAuth
-    fun setCategoryMeta(input: SetCategoryMetaInput): DataFetcherResult<SetCategoryMetaPayload?> =
+    fun setCategoryMeta(input: SetCategoryMetaInput): SetCategoryMetaPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, meta) = input
-            val (clientMutationId, meta) = input
 
-            Category.modifyMeta(meta.categoryId, meta.key, meta.value)
+        Category.modifyMeta(meta.categoryId, meta.key, meta.value)
 
-            SetCategoryMetaPayload(clientMutationId, meta)
+        return SetCategoryMetaPayload(clientMutationId, meta)
-        }
+    }
 
     data class DeleteCategoryMetaInput(
         val clientMutationId: String? = null,
@@ -64,34 +64,33 @@ class CategoryMutation {
     )
 
     @RequireAuth
-    fun deleteCategoryMeta(input: DeleteCategoryMetaInput): DataFetcherResult<DeleteCategoryMetaPayload?> =
+    fun deleteCategoryMeta(input: DeleteCategoryMetaInput): DeleteCategoryMetaPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, categoryId, key) = input
-            val (clientMutationId, categoryId, key) = input
 
-            val (meta, category) =
+        val (meta, category) =
-                transaction {
+            transaction {
-                    val meta =
+                val meta =
-                        CategoryMetaTable
+                    CategoryMetaTable
-                            .selectAll()
+                        .selectAll()
-                            .where { (CategoryMetaTable.ref eq categoryId) and (CategoryMetaTable.key eq key) }
+                        .where { (CategoryMetaTable.ref eq categoryId) and (CategoryMetaTable.key eq key) }
-                            .firstOrNull()
+                        .firstOrNull()
 
-                    CategoryMetaTable.deleteWhere { (CategoryMetaTable.ref eq categoryId) and (CategoryMetaTable.key eq key) }
+                CategoryMetaTable.deleteWhere { (CategoryMetaTable.ref eq categoryId) and (CategoryMetaTable.key eq key) }
 
-                    val category =
+                val category =
-                        transaction {
+                    transaction {
-                            CategoryType(CategoryTable.selectAll().where { CategoryTable.id eq categoryId }.first())
+                        CategoryType(CategoryTable.selectAll().where { CategoryTable.id eq categoryId }.first())
-                        }
+                    }
 
-                    if (meta != null) {
+                if (meta != null) {
-                        CategoryMetaType(meta)
+                    CategoryMetaType(meta)
-                    } else {
+                } else {
-                        null
+                    null
-                    } to category
+                } to category
-                }
+            }
 
-            DeleteCategoryMetaPayload(clientMutationId, meta, category)
+        return DeleteCategoryMetaPayload(clientMutationId, meta, category)
-        }
+    }
 
     data class SetCategoryMetasItem(
         val categoryIds: List<Int>,
@@ -110,43 +109,42 @@ class CategoryMutation {
     )
 
     @RequireAuth
-    fun setCategoryMetas(input: SetCategoryMetasInput): DataFetcherResult<SetCategoryMetasPayload?> =
+    fun setCategoryMetas(input: SetCategoryMetasInput): SetCategoryMetasPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, items) = input
-            val (clientMutationId, items) = input
 
-            val metaByCategoryId =
+        val metaByCategoryId =
-                items
+            items
-                    .flatMap { item ->
+                .flatMap { item ->
-                        val metaMap = item.metas.associate { it.key to it.value }
+                    val metaMap = item.metas.associate { it.key to it.value }
-                        item.categoryIds.map { categoryId -> categoryId to metaMap }
+                    item.categoryIds.map { categoryId -> categoryId to metaMap }
-                    }.groupBy({ it.first }, { it.second })
+                }.groupBy({ it.first }, { it.second })
-                    .mapValues { (_, maps) -> maps.reduce { acc, map -> acc + map } }
+                .mapValues { (_, maps) -> maps.reduce { acc, map -> acc + map } }
 
-            Category.modifyCategoriesMetas(metaByCategoryId)
+        Category.modifyCategoriesMetas(metaByCategoryId)
 
-            val allCategoryIds = metaByCategoryId.keys
+        val allCategoryIds = metaByCategoryId.keys
-            val allMetaKeys = metaByCategoryId.values.flatMap { item -> item.keys }.distinct()
+        val allMetaKeys = metaByCategoryId.values.flatMap { item -> item.keys }.distinct()
 
-            val (updatedMetas, categories) =
+        val (updatedMetas, categories) =
-                transaction {
+            transaction {
-                    val updatedMetas =
+                val updatedMetas =
-                        CategoryMetaTable
+                    CategoryMetaTable
-                            .selectAll()
+                        .selectAll()
-                            .where { (CategoryMetaTable.ref inList allCategoryIds) and (CategoryMetaTable.key inList allMetaKeys) }
+                        .where { (CategoryMetaTable.ref inList allCategoryIds) and (CategoryMetaTable.key inList allMetaKeys) }
-                            .map { CategoryMetaType(it) }
+                        .map { CategoryMetaType(it) }
 
-                    val categories =
+                val categories =
-                        CategoryTable
+                    CategoryTable
-                            .selectAll()
+                        .selectAll()
-                            .where { CategoryTable.id inList allCategoryIds }
+                        .where { CategoryTable.id inList allCategoryIds }
-                            .map { CategoryType(it) }
+                        .map { CategoryType(it) }
-                            .distinctBy { it.id }
+                        .distinctBy { it.id }
 
-                    updatedMetas to categories
+                updatedMetas to categories
-                }
+            }
 
-            SetCategoryMetasPayload(clientMutationId, updatedMetas, categories)
+        return SetCategoryMetasPayload(clientMutationId, updatedMetas, categories)
-        }
+    }
 
     data class DeleteCategoryMetasItem(
         val categoryIds: List<Int>,
@@ -166,64 +164,63 @@ class CategoryMutation {
     )
 
     @RequireAuth
-    fun deleteCategoryMetas(input: DeleteCategoryMetasInput): DataFetcherResult<DeleteCategoryMetasPayload?> =
+    fun deleteCategoryMetas(input: DeleteCategoryMetasInput): DeleteCategoryMetasPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, items) = input
-            val (clientMutationId, items) = input
 
-            items.forEach { item ->
+        items.forEach { item ->
-                require(!item.keys.isNullOrEmpty() || !item.prefixes.isNullOrEmpty()) {
+            require(!item.keys.isNullOrEmpty() || !item.prefixes.isNullOrEmpty()) {
-                    "Either 'keys' or 'prefixes' must be provided for each item"
+                "Either 'keys' or 'prefixes' must be provided for each item"
+            }
+        }
+
+        val (allDeletedMetas, allCategoryIds) =
+            transaction {
+                val deletedMetas = mutableListOf<CategoryMetaType>()
+                val categoryIds = mutableSetOf<Int>()
+
+                items.forEach { item ->
+                    val keyCondition: Op<Boolean>? =
+                        item.keys?.takeIf { it.isNotEmpty() }?.let { CategoryMetaTable.key inList it }
+
+                    val prefixCondition: Op<Boolean>? =
+                        item.prefixes
+                            ?.filter { it.isNotEmpty() }
+                            ?.map { (CategoryMetaTable.key like LikePattern("$it%")) as Op<Boolean> }
+                            ?.reduceOrNull { acc, op -> acc or op }
+
+                    val metaKeyCondition =
+                        if (keyCondition != null && prefixCondition != null) {
+                            keyCondition or prefixCondition
+                        } else {
+                            keyCondition ?: prefixCondition!!
+                        }
+
+                    val condition = (CategoryMetaTable.ref inList item.categoryIds) and metaKeyCondition
+
+                    deletedMetas +=
+                        CategoryMetaTable
+                            .selectAll()
+                            .where { condition }
+                            .map { CategoryMetaType(it) }
+
+                    CategoryMetaTable.deleteWhere { condition }
+                    categoryIds += item.categoryIds
                 }
+
+                deletedMetas to categoryIds
             }
 
-            val (allDeletedMetas, allCategoryIds) =
+        val categories =
-                transaction {
+            transaction {
-                    val deletedMetas = mutableListOf<CategoryMetaType>()
+                CategoryTable
-                    val categoryIds = mutableSetOf<Int>()
+                    .selectAll()
+                    .where { CategoryTable.id inList allCategoryIds }
+                    .map { CategoryType(it) }
+                    .distinctBy { it.id }
+            }
 
-                    items.forEach { item ->
+        return DeleteCategoryMetasPayload(clientMutationId, allDeletedMetas, categories)
-                        val keyCondition: Op<Boolean>? =
+    }
-                            item.keys?.takeIf { it.isNotEmpty() }?.let { CategoryMetaTable.key inList it }
-
-                        val prefixCondition: Op<Boolean>? =
-                            item.prefixes
-                                ?.filter { it.isNotEmpty() }
-                                ?.map { (CategoryMetaTable.key like LikePattern("$it%")) as Op<Boolean> }
-                                ?.reduceOrNull { acc, op -> acc or op }
-
-                        val metaKeyCondition =
-                            if (keyCondition != null && prefixCondition != null) {
-                                keyCondition or prefixCondition
-                            } else {
-                                keyCondition ?: prefixCondition!!
-                            }
-
-                        val condition = (CategoryMetaTable.ref inList item.categoryIds) and metaKeyCondition
-
-                        deletedMetas +=
-                            CategoryMetaTable
-                                .selectAll()
-                                .where { condition }
-                                .map { CategoryMetaType(it) }
-
-                        CategoryMetaTable.deleteWhere { condition }
-                        categoryIds += item.categoryIds
-                    }
-
-                    deletedMetas to categoryIds
-                }
-
-            val categories =
-                transaction {
-                    CategoryTable
-                        .selectAll()
-                        .where { CategoryTable.id inList allCategoryIds }
-                        .map { CategoryType(it) }
-                        .distinctBy { it.id }
-                }
-
-            DeleteCategoryMetasPayload(clientMutationId, allDeletedMetas, categories)
-        }
 
     data class UpdateCategoryPatch(
         val name: String? = null,
@@ -291,40 +288,38 @@ class CategoryMutation {
     }
 
     @RequireAuth
-    fun updateCategory(input: UpdateCategoryInput): DataFetcherResult<UpdateCategoryPayload?> =
+    fun updateCategory(input: UpdateCategoryInput): UpdateCategoryPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, id, patch) = input
-            val (clientMutationId, id, patch) = input
 
-            updateCategories(listOf(id), patch)
+        updateCategories(listOf(id), patch)
 
-            val category =
+        val category =
-                transaction {
+            transaction {
-                    CategoryType(CategoryTable.selectAll().where { CategoryTable.id eq id }.first())
+                CategoryType(CategoryTable.selectAll().where { CategoryTable.id eq id }.first())
-                }
+            }
 
-            UpdateCategoryPayload(
+        return UpdateCategoryPayload(
-                clientMutationId = clientMutationId,
+            clientMutationId = clientMutationId,
-                category = category,
+            category = category,
-            )
+        )
-        }
+    }
 
     @RequireAuth
-    fun updateCategories(input: UpdateCategoriesInput): DataFetcherResult<UpdateCategoriesPayload?> =
+    fun updateCategories(input: UpdateCategoriesInput): UpdateCategoriesPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, ids, patch) = input
-            val (clientMutationId, ids, patch) = input
 
-            updateCategories(ids, patch)
+        updateCategories(ids, patch)
 
-            val categories =
+        val categories =
-                transaction {
+            transaction {
-                    CategoryTable.selectAll().where { CategoryTable.id inList ids }.map { CategoryType(it) }
+                CategoryTable.selectAll().where { CategoryTable.id inList ids }.map { CategoryType(it) }
-                }
+            }
 
-            UpdateCategoriesPayload(
+        return UpdateCategoriesPayload(
-                clientMutationId = clientMutationId,
+            clientMutationId = clientMutationId,
-                categories = categories,
+            categories = categories,
-            )
+        )
-        }
+    }
 
     data class UpdateCategoryOrderPayload(
         val clientMutationId: String?,
@@ -338,50 +333,49 @@ class CategoryMutation {
     )
 
     @RequireAuth
-    fun updateCategoryOrder(input: UpdateCategoryOrderInput): DataFetcherResult<UpdateCategoryOrderPayload?> =
+    fun updateCategoryOrder(input: UpdateCategoryOrderInput): UpdateCategoryOrderPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, categoryId, position) = input
-            val (clientMutationId, categoryId, position) = input
+        require(position > 0) {
-            require(position > 0) {
+            "'order' must not be <= 0"
-                "'order' must not be <= 0"
-            }
-
-            transaction {
-                val currentOrder =
-                    CategoryTable
-                        .selectAll()
-                        .where { CategoryTable.id eq categoryId }
-                        .first()[CategoryTable.order]
-
-                if (currentOrder != position) {
-                    if (position < currentOrder) {
-                        CategoryTable.update({ CategoryTable.order greaterEq position }) {
-                            it[CategoryTable.order] = CategoryTable.order + 1
-                        }
-                    } else {
-                        CategoryTable.update({ CategoryTable.order lessEq position }) {
-                            it[CategoryTable.order] = CategoryTable.order - 1
-                        }
-                    }
-
-                    CategoryTable.update({ CategoryTable.id eq categoryId }) {
-                        it[CategoryTable.order] = position
-                    }
-                }
-            }
-
-            Category.normalizeCategories()
-
-            val categories =
-                transaction {
-                    CategoryTable.selectAll().orderBy(CategoryTable.order).map { CategoryType(it) }
-                }
-
-            UpdateCategoryOrderPayload(
-                clientMutationId = clientMutationId,
-                categories = categories,
-            )
         }
 
+        transaction {
+            val currentOrder =
+                CategoryTable
+                    .selectAll()
+                    .where { CategoryTable.id eq categoryId }
+                    .first()[CategoryTable.order]
+
+            if (currentOrder != position) {
+                if (position < currentOrder) {
+                    CategoryTable.update({ CategoryTable.order greaterEq position }) {
+                        it[CategoryTable.order] = CategoryTable.order + 1
+                    }
+                } else {
+                    CategoryTable.update({ CategoryTable.order lessEq position }) {
+                        it[CategoryTable.order] = CategoryTable.order - 1
+                    }
+                }
+
+                CategoryTable.update({ CategoryTable.id eq categoryId }) {
+                    it[CategoryTable.order] = position
+                }
+            }
+        }
+
+        Category.normalizeCategories()
+
+        val categories =
+            transaction {
+                CategoryTable.selectAll().orderBy(CategoryTable.order).map { CategoryType(it) }
+            }
+
+        return UpdateCategoryOrderPayload(
+            clientMutationId = clientMutationId,
+            categories = categories,
+        )
+    }
+
     data class CreateCategoryInput(
         val clientMutationId: String? = null,
         val name: String,
@@ -397,53 +391,52 @@ class CategoryMutation {
     )
 
     @RequireAuth
-    fun createCategory(input: CreateCategoryInput): DataFetcherResult<CreateCategoryPayload?> =
+    fun createCategory(input: CreateCategoryInput): CreateCategoryPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, name, order, default, includeInUpdate, includeInDownload) = input
-            val (clientMutationId, name, order, default, includeInUpdate, includeInDownload) = input
+        transaction {
-            transaction {
+            require(CategoryTable.selectAll().where { CategoryTable.name eq input.name }.isEmpty()) {
-                require(CategoryTable.selectAll().where { CategoryTable.name eq input.name }.isEmpty()) {
+                "'name' must be unique"
-                    "'name' must be unique"
-                }
             }
-            require(!name.equals(Category.DEFAULT_CATEGORY_NAME, ignoreCase = true)) {
+        }
-                "'name' must not be ${Category.DEFAULT_CATEGORY_NAME}"
+        require(!name.equals(Category.DEFAULT_CATEGORY_NAME, ignoreCase = true)) {
-            }
+            "'name' must not be ${Category.DEFAULT_CATEGORY_NAME}"
-            if (order != null) {
+        }
-                require(order > 0) {
+        if (order != null) {
-                    "'order' must not be <= 0"
+            require(order > 0) {
-                }
+                "'order' must not be <= 0"
             }
+        }
 
-            val category =
+        val category =
-                transaction {
+            transaction {
-                    if (order != null) {
+                if (order != null) {
-                        CategoryTable.update({ CategoryTable.order greaterEq order }) {
+                    CategoryTable.update({ CategoryTable.order greaterEq order }) {
-                            it[CategoryTable.order] = CategoryTable.order + 1
+                        it[CategoryTable.order] = CategoryTable.order + 1
+                    }
+                }
+
+                val id =
+                    CategoryTable.insertAndGetId {
+                        it[CategoryTable.name] = input.name
+                        it[CategoryTable.order] = order ?: Int.MAX_VALUE
+                        if (default != null) {
+                            it[CategoryTable.isDefault] = default
+                        }
+                        if (includeInUpdate != null) {
+                            it[CategoryTable.includeInUpdate] = includeInUpdate.value
+                        }
+                        if (includeInDownload != null) {
+                            it[CategoryTable.includeInDownload] = includeInDownload.value
                         }
                     }
 
-                    val id =
+                Category.normalizeCategories()
-                        CategoryTable.insertAndGetId {
-                            it[CategoryTable.name] = input.name
-                            it[CategoryTable.order] = order ?: Int.MAX_VALUE
-                            if (default != null) {
-                                it[CategoryTable.isDefault] = default
-                            }
-                            if (includeInUpdate != null) {
-                                it[CategoryTable.includeInUpdate] = includeInUpdate.value
-                            }
-                            if (includeInDownload != null) {
-                                it[CategoryTable.includeInDownload] = includeInDownload.value
-                            }
-                        }
 
-                    Category.normalizeCategories()
+                CategoryType(CategoryTable.selectAll().where { CategoryTable.id eq id }.first())
+            }
 
-                    CategoryType(CategoryTable.selectAll().where { CategoryTable.id eq id }.first())
+        return CreateCategoryPayload(clientMutationId, category)
-                }
+    }
-
-            CreateCategoryPayload(clientMutationId, category)
-        }
 
     data class DeleteCategoryInput(
         val clientMutationId: String? = null,
@@ -457,47 +450,45 @@ class CategoryMutation {
     )
 
     @RequireAuth
-    fun deleteCategory(input: DeleteCategoryInput): DataFetcherResult<DeleteCategoryPayload?> {
+    fun deleteCategory(input: DeleteCategoryInput): DeleteCategoryPayload? {
-        return asDataFetcherResult {
+        val (clientMutationId, categoryId) = input
-            val (clientMutationId, categoryId) = input
+        if (categoryId == 0) { // Don't delete default category
-            if (categoryId == 0) { // Don't delete default category
+            return DeleteCategoryPayload(
-                return@asDataFetcherResult DeleteCategoryPayload(
+                clientMutationId,
-                    clientMutationId,
+                null,
-                    null,
+                emptyList(),
-                    emptyList(),
+            )
-                )
+        }
+
+        val (category, mangas) =
+            transaction {
+                val category =
+                    CategoryTable
+                        .selectAll()
+                        .where { CategoryTable.id eq categoryId }
+                        .firstOrNull()
+
+                val mangas =
+                    transaction {
+                        MangaTable
+                            .innerJoin(CategoryMangaTable)
+                            .selectAll()
+                            .where { CategoryMangaTable.category eq categoryId }
+                            .map { MangaType(it) }
+                    }
+
+                CategoryTable.deleteWhere { CategoryTable.id eq categoryId }
+
+                Category.normalizeCategories()
+
+                if (category != null) {
+                    CategoryType(category)
+                } else {
+                    null
+                } to mangas
             }
 
-            val (category, mangas) =
+        return DeleteCategoryPayload(clientMutationId, category, mangas)
-                transaction {
-                    val category =
-                        CategoryTable
-                            .selectAll()
-                            .where { CategoryTable.id eq categoryId }
-                            .firstOrNull()
-
-                    val mangas =
-                        transaction {
-                            MangaTable
-                                .innerJoin(CategoryMangaTable)
-                                .selectAll()
-                                .where { CategoryMangaTable.category eq categoryId }
-                                .map { MangaType(it) }
-                        }
-
-                    CategoryTable.deleteWhere { CategoryTable.id eq categoryId }
-
-                    Category.normalizeCategories()
-
-                    if (category != null) {
-                        CategoryType(category)
-                    } else {
-                        null
-                    } to mangas
-                }
-
-            DeleteCategoryPayload(clientMutationId, category, mangas)
-        }
     }
 
     data class UpdateMangaCategoriesPatch(
@@ -547,38 +538,36 @@ class CategoryMutation {
     }
 
     @RequireAuth
-    fun updateMangaCategories(input: UpdateMangaCategoriesInput): DataFetcherResult<UpdateMangaCategoriesPayload?> =
+    fun updateMangaCategories(input: UpdateMangaCategoriesInput): UpdateMangaCategoriesPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, id, patch) = input
-            val (clientMutationId, id, patch) = input
 
-            updateMangas(listOf(id), patch)
+        updateMangas(listOf(id), patch)
 
-            val manga =
+        val manga =
-                transaction {
+            transaction {
-                    MangaType(MangaTable.selectAll().where { MangaTable.id eq id }.first())
+                MangaType(MangaTable.selectAll().where { MangaTable.id eq id }.first())
-                }
+            }
 
-            UpdateMangaCategoriesPayload(
+        return UpdateMangaCategoriesPayload(
-                clientMutationId = clientMutationId,
+            clientMutationId = clientMutationId,
-                manga = manga,
+            manga = manga,
-            )
+        )
-        }
+    }
 
     @RequireAuth
-    fun updateMangasCategories(input: UpdateMangasCategoriesInput): DataFetcherResult<UpdateMangasCategoriesPayload?> =
+    fun updateMangasCategories(input: UpdateMangasCategoriesInput): UpdateMangasCategoriesPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, ids, patch) = input
-            val (clientMutationId, ids, patch) = input
 
-            updateMangas(ids, patch)
+        updateMangas(ids, patch)
 
-            val mangas =
+        val mangas =
-                transaction {
+            transaction {
-                    MangaTable.selectAll().where { MangaTable.id inList ids }.map { MangaType(it) }
+                MangaTable.selectAll().where { MangaTable.id inList ids }.map { MangaType(it) }
-                }
+            }
 
-            UpdateMangasCategoriesPayload(
+        return UpdateMangasCategoriesPayload(
-                clientMutationId = clientMutationId,
+            clientMutationId = clientMutationId,
-                mangas = mangas,
+            mangas = mangas,
-            )
+        )
-        }
+    }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/ChapterMutation.kt

@@ -1,6 +1,7 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
-import graphql.execution.DataFetcherResult
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
 import org.jetbrains.exposed.dao.id.EntityID
@@ -16,7 +17,6 @@ import org.jetbrains.exposed.sql.selectAll
 import org.jetbrains.exposed.sql.statements.BatchUpdateStatement
 import org.jetbrains.exposed.sql.transactions.transaction
 import org.jetbrains.exposed.sql.update
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.ChapterMetaType
 import suwayomi.tachidesk.graphql.types.ChapterType
@@ -120,40 +120,38 @@ class ChapterMutation {
     }
 
     @RequireAuth
-    fun updateChapter(input: UpdateChapterInput): DataFetcherResult<UpdateChapterPayload?> =
+    fun updateChapter(input: UpdateChapterInput): UpdateChapterPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, id, patch) = input
-            val (clientMutationId, id, patch) = input
 
-            updateChapters(listOf(id), patch)
+        updateChapters(listOf(id), patch)
 
-            val chapter =
+        val chapter =
-                transaction {
+            transaction {
-                    ChapterType(ChapterTable.selectAll().where { ChapterTable.id eq id }.first())
+                ChapterType(ChapterTable.selectAll().where { ChapterTable.id eq id }.first())
-                }
+            }
 
-            UpdateChapterPayload(
+        return UpdateChapterPayload(
-                clientMutationId = clientMutationId,
+            clientMutationId = clientMutationId,
-                chapter = chapter,
+            chapter = chapter,
-            )
+        )
-        }
+    }
 
     @RequireAuth
-    fun updateChapters(input: UpdateChaptersInput): DataFetcherResult<UpdateChaptersPayload?> =
+    fun updateChapters(input: UpdateChaptersInput): UpdateChaptersPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, ids, patch) = input
-            val (clientMutationId, ids, patch) = input
 
-            updateChapters(ids, patch)
+        updateChapters(ids, patch)
 
-            val chapters =
+        val chapters =
-                transaction {
+            transaction {
-                    ChapterTable.selectAll().where { ChapterTable.id inList ids }.map { ChapterType(it) }
+                ChapterTable.selectAll().where { ChapterTable.id inList ids }.map { ChapterType(it) }
-                }
+            }
 
-            UpdateChaptersPayload(
+        return UpdateChaptersPayload(
-                clientMutationId = clientMutationId,
+            clientMutationId = clientMutationId,
-                chapters = chapters,
+            chapters = chapters,
-            )
+        )
-        }
+    }
 
     data class FetchChaptersInput(
         val clientMutationId: String? = null,
@@ -166,27 +164,25 @@ class ChapterMutation {
     )
 
     @RequireAuth
-    fun fetchChapters(input: FetchChaptersInput): CompletableFuture<DataFetcherResult<FetchChaptersPayload?>> {
+    fun fetchChapters(input: FetchChaptersInput): CompletableFuture<FetchChaptersPayload?> {
         val (clientMutationId, mangaId) = input
 
         return future {
-            asDataFetcherResult {
+            Chapter.fetchChapterList(mangaId)
-                Chapter.fetchChapterList(mangaId)
 
-                val chapters =
+            val chapters =
-                    transaction {
+                transaction {
-                        ChapterTable
+                    ChapterTable
-                            .selectAll()
+                        .selectAll()
-                            .where { ChapterTable.manga eq mangaId }
+                        .where { ChapterTable.manga eq mangaId }
-                            .orderBy(ChapterTable.sourceOrder)
+                        .orderBy(ChapterTable.sourceOrder)
-                            .map { ChapterType(it) }
+                        .map { ChapterType(it) }
-                    }
+                }
 
-                FetchChaptersPayload(
+            FetchChaptersPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    chapters = chapters,
+                chapters = chapters,
-                )
+            )
-            }
         }
     }
 
@@ -201,14 +197,13 @@ class ChapterMutation {
     )
 
     @RequireAuth
-    fun setChapterMeta(input: SetChapterMetaInput): DataFetcherResult<SetChapterMetaPayload?> =
+    fun setChapterMeta(input: SetChapterMetaInput): SetChapterMetaPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, meta) = input
-            val (clientMutationId, meta) = input
 
-            Chapter.modifyChapterMeta(meta.chapterId, meta.key, meta.value)
+        Chapter.modifyChapterMeta(meta.chapterId, meta.key, meta.value)
 
-            SetChapterMetaPayload(clientMutationId, meta)
+        return SetChapterMetaPayload(clientMutationId, meta)
-        }
+    }
 
     data class DeleteChapterMetaInput(
         val clientMutationId: String? = null,
@@ -223,34 +218,33 @@ class ChapterMutation {
     )
 
     @RequireAuth
-    fun deleteChapterMeta(input: DeleteChapterMetaInput): DataFetcherResult<DeleteChapterMetaPayload?> =
+    fun deleteChapterMeta(input: DeleteChapterMetaInput): DeleteChapterMetaPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, chapterId, key) = input
-            val (clientMutationId, chapterId, key) = input
 
-            val (meta, chapter) =
+        val (meta, chapter) =
-                transaction {
+            transaction {
-                    val meta =
+                val meta =
-                        ChapterMetaTable
+                    ChapterMetaTable
-                            .selectAll()
+                        .selectAll()
-                            .where { (ChapterMetaTable.ref eq chapterId) and (ChapterMetaTable.key eq key) }
+                        .where { (ChapterMetaTable.ref eq chapterId) and (ChapterMetaTable.key eq key) }
-                            .firstOrNull()
+                        .firstOrNull()
 
-                    ChapterMetaTable.deleteWhere { (ChapterMetaTable.ref eq chapterId) and (ChapterMetaTable.key eq key) }
+                ChapterMetaTable.deleteWhere { (ChapterMetaTable.ref eq chapterId) and (ChapterMetaTable.key eq key) }
 
-                    val chapter =
+                val chapter =
-                        transaction {
+                    transaction {
-                            ChapterType(ChapterTable.selectAll().where { ChapterTable.id eq chapterId }.first())
+                        ChapterType(ChapterTable.selectAll().where { ChapterTable.id eq chapterId }.first())
-                        }
+                    }
 
-                    if (meta != null) {
+                if (meta != null) {
-                        ChapterMetaType(meta)
+                    ChapterMetaType(meta)
-                    } else {
+                } else {
-                        null
+                    null
-                    } to chapter
+                } to chapter
-                }
+            }
 
-            DeleteChapterMetaPayload(clientMutationId, meta, chapter)
+        return DeleteChapterMetaPayload(clientMutationId, meta, chapter)
-        }
+    }
 
     data class SetChapterMetasItem(
         val chapterIds: List<Int>,
@@ -269,43 +263,42 @@ class ChapterMutation {
     )
 
     @RequireAuth
-    fun setChapterMetas(input: SetChapterMetasInput): DataFetcherResult<SetChapterMetasPayload?> =
+    fun setChapterMetas(input: SetChapterMetasInput): SetChapterMetasPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, items) = input
-            val (clientMutationId, items) = input
 
-            val metaByChapterId =
+        val metaByChapterId =
-                items
+            items
-                    .flatMap { item ->
+                .flatMap { item ->
-                        val metaMap = item.metas.associate { it.key to it.value }
+                    val metaMap = item.metas.associate { it.key to it.value }
-                        item.chapterIds.map { chapterId -> chapterId to metaMap }
+                    item.chapterIds.map { chapterId -> chapterId to metaMap }
-                    }.groupBy({ it.first }, { it.second })
+                }.groupBy({ it.first }, { it.second })
-                    .mapValues { (_, maps) -> maps.reduce { acc, map -> acc + map } }
+                .mapValues { (_, maps) -> maps.reduce { acc, map -> acc + map } }
 
-            Chapter.modifyChaptersMetas(metaByChapterId)
+        Chapter.modifyChaptersMetas(metaByChapterId)
 
-            val allChapterIds = metaByChapterId.keys
+        val allChapterIds = metaByChapterId.keys
-            val allMetaKeys = metaByChapterId.values.flatMap { it.keys }.distinct()
+        val allMetaKeys = metaByChapterId.values.flatMap { it.keys }.distinct()
 
-            val (updatedMetas, chapters) =
+        val (updatedMetas, chapters) =
-                transaction {
+            transaction {
-                    val updatedMetas =
+                val updatedMetas =
-                        ChapterMetaTable
+                    ChapterMetaTable
-                            .selectAll()
+                        .selectAll()
-                            .where { (ChapterMetaTable.ref inList allChapterIds) and (ChapterMetaTable.key inList allMetaKeys) }
+                        .where { (ChapterMetaTable.ref inList allChapterIds) and (ChapterMetaTable.key inList allMetaKeys) }
-                            .map { ChapterMetaType(it) }
+                        .map { ChapterMetaType(it) }
 
-                    val chapters =
+                val chapters =
-                        ChapterTable
+                    ChapterTable
-                            .selectAll()
+                        .selectAll()
-                            .where { ChapterTable.id inList allChapterIds }
+                        .where { ChapterTable.id inList allChapterIds }
-                            .map { ChapterType(it) }
+                        .map { ChapterType(it) }
-                            .distinctBy { it.id }
+                        .distinctBy { it.id }
 
-                    updatedMetas to chapters
+                updatedMetas to chapters
-                }
+            }
 
-            SetChapterMetasPayload(clientMutationId, updatedMetas, chapters)
+        return SetChapterMetasPayload(clientMutationId, updatedMetas, chapters)
-        }
+    }
 
     data class DeleteChapterMetasItem(
         val chapterIds: List<Int>,
@@ -325,64 +318,63 @@ class ChapterMutation {
     )
 
     @RequireAuth
-    fun deleteChapterMetas(input: DeleteChapterMetasInput): DataFetcherResult<DeleteChapterMetasPayload?> =
+    fun deleteChapterMetas(input: DeleteChapterMetasInput): DeleteChapterMetasPayload? {
-        asDataFetcherResult {
+        val (clientMutationId, items) = input
-            val (clientMutationId, items) = input
 
-            items.forEach { item ->
+        items.forEach { item ->
-                require(!item.keys.isNullOrEmpty() || !item.prefixes.isNullOrEmpty()) {
+            require(!item.keys.isNullOrEmpty() || !item.prefixes.isNullOrEmpty()) {
-                    "Either 'keys' or 'prefixes' must be provided for each item"
+                "Either 'keys' or 'prefixes' must be provided for each item"
+            }
+        }
+
+        val (allDeletedMetas, allChapterIds) =
+            transaction {
+                val deletedMetas = mutableListOf<ChapterMetaType>()
+                val chapterIds = mutableSetOf<Int>()
+
+                items.forEach { item ->
+                    val keyCondition: Op<Boolean>? =
+                        item.keys?.takeIf { it.isNotEmpty() }?.let { ChapterMetaTable.key inList it }
+
+                    val prefixCondition: Op<Boolean>? =
+                        item.prefixes
+                            ?.filter { it.isNotEmpty() }
+                            ?.map { (ChapterMetaTable.key like LikePattern("$it%")) as Op<Boolean> }
+                            ?.reduceOrNull { acc, op -> acc or op }
+
+                    val metaKeyCondition =
+                        if (keyCondition != null && prefixCondition != null) {
+                            keyCondition or prefixCondition
+                        } else {
+                            keyCondition ?: prefixCondition!!
+                        }
+
+                    val condition = (ChapterMetaTable.ref inList item.chapterIds) and metaKeyCondition
+
+                    deletedMetas +=
+                        ChapterMetaTable
+                            .selectAll()
+                            .where { condition }
+                            .map { ChapterMetaType(it) }
+
+                    ChapterMetaTable.deleteWhere { condition }
+                    chapterIds += item.chapterIds
                 }
+
+                deletedMetas to chapterIds
             }
 
-            val (allDeletedMetas, allChapterIds) =
+        val chapters =
-                transaction {
+            transaction {
-                    val deletedMetas = mutableListOf<ChapterMetaType>()
+                ChapterTable
-                    val chapterIds = mutableSetOf<Int>()
+                    .selectAll()
+                    .where { ChapterTable.id inList allChapterIds }
+                    .map { ChapterType(it) }
+                    .distinctBy { it.id }
+            }
 
-                    items.forEach { item ->
+        return DeleteChapterMetasPayload(clientMutationId, allDeletedMetas, chapters)
-                        val keyCondition: Op<Boolean>? =
+    }
-                            item.keys?.takeIf { it.isNotEmpty() }?.let { ChapterMetaTable.key inList it }
-
-                        val prefixCondition: Op<Boolean>? =
-                            item.prefixes
-                                ?.filter { it.isNotEmpty() }
-                                ?.map { (ChapterMetaTable.key like LikePattern("$it%")) as Op<Boolean> }
-                                ?.reduceOrNull { acc, op -> acc or op }
-
-                        val metaKeyCondition =
-                            if (keyCondition != null && prefixCondition != null) {
-                                keyCondition or prefixCondition
-                            } else {
-                                keyCondition ?: prefixCondition!!
-                            }
-
-                        val condition = (ChapterMetaTable.ref inList item.chapterIds) and metaKeyCondition
-
-                        deletedMetas +=
-                            ChapterMetaTable
-                                .selectAll()
-                                .where { condition }
-                                .map { ChapterMetaType(it) }
-
-                        ChapterMetaTable.deleteWhere { condition }
-                        chapterIds += item.chapterIds
-                    }
-
-                    deletedMetas to chapterIds
-                }
-
-            val chapters =
-                transaction {
-                    ChapterTable
-                        .selectAll()
-                        .where { ChapterTable.id inList allChapterIds }
-                        .map { ChapterType(it) }
-                        .distinctBy { it.id }
-                }
-
-            DeleteChapterMetasPayload(clientMutationId, allDeletedMetas, chapters)
-        }
 
     data class FetchChapterPagesInput(
         val clientMutationId: String? = null,
@@ -405,67 +397,65 @@ class ChapterMutation {
     )
 
     @RequireAuth
-    fun fetchChapterPages(input: FetchChapterPagesInput): CompletableFuture<DataFetcherResult<FetchChapterPagesPayload?>> {
+    fun fetchChapterPages(input: FetchChapterPagesInput): CompletableFuture<FetchChapterPagesPayload?> {
         val (clientMutationId, chapterId) = input
         val paramsMap = input.toParams()
 
         return future {
-            asDataFetcherResult {
+            var chapter = getChapterDownloadReadyById(chapterId)
-                var chapter = getChapterDownloadReadyById(chapterId)
+            val syncResult = KoreaderSyncService.checkAndPullProgress(chapter.id)
-                val syncResult = KoreaderSyncService.checkAndPullProgress(chapter.id)
+            var syncConflictInfo: SyncConflictInfoType? = null
-                var syncConflictInfo: SyncConflictInfoType? = null
 
-                if (syncResult != null) {
+            if (syncResult != null) {
-                    if (syncResult.isConflict) {
+                if (syncResult.isConflict) {
-                        syncConflictInfo =
+                    syncConflictInfo =
-                            SyncConflictInfoType(
+                        SyncConflictInfoType(
-                                deviceName = syncResult.device,
+                            deviceName = syncResult.device,
-                                remotePage = syncResult.pageRead,
+                            remotePage = syncResult.pageRead,
-                            )
-                    }
-
-                    if (syncResult.shouldUpdate) {
-                        // Update DB for SILENT and RECEIVE
-                        transaction {
-                            ChapterTable.update({ ChapterTable.id eq chapter.id }) {
-                                it[lastPageRead] = syncResult.pageRead
-                                it[lastReadAt] = syncResult.timestamp
-                            }
-                        }
-                    }
-                    // For PROMPT, SILENT, and RECEIVE, return the remote progress
-                    chapter =
-                        chapter.copy(
-                            lastPageRead = if (syncResult.shouldUpdate) syncResult.pageRead else chapter.lastPageRead,
-                            lastReadAt = if (syncResult.shouldUpdate) syncResult.timestamp else chapter.lastReadAt,
                         )
                 }
 
-                val params =
+                if (syncResult.shouldUpdate) {
-                    buildString {
+                    // Update DB for SILENT and RECEIVE
-                        if (paramsMap.isNotEmpty()) {
+                    transaction {
-                            append("?")
+                        ChapterTable.update({ ChapterTable.id eq chapter.id }) {
-                            paramsMap.entries.forEach { entry ->
+                            it[lastPageRead] = syncResult.pageRead
-                                if (length > 1) {
+                            it[lastReadAt] = syncResult.timestamp
-                                    append("&")
-                                }
-                                append(entry.key)
-                                append("=")
-                                append(URLEncoder.encode(entry.value, Charsets.UTF_8))
-                            }
                         }
                     }
-
+                }
-                FetchChapterPagesPayload(
+                // For PROMPT, SILENT, and RECEIVE, return the remote progress
-                    clientMutationId = clientMutationId,
+                chapter =
-                    pages =
+                    chapter.copy(
-                        List(chapter.pageCount) { index ->
+                        lastPageRead = if (syncResult.shouldUpdate) syncResult.pageRead else chapter.lastPageRead,
-                            "/api/v1/manga/${chapter.mangaId}/chapter/${chapter.index}/page/${index}$params"
+                        lastReadAt = if (syncResult.shouldUpdate) syncResult.timestamp else chapter.lastReadAt,
-                        },
+                    )
-                    chapter = ChapterType(chapter),
-                    syncConflict = syncConflictInfo,
-                )
             }
+
+            val params =
+                buildString {
+                    if (paramsMap.isNotEmpty()) {
+                        append("?")
+                        paramsMap.entries.forEach { entry ->
+                            if (length > 1) {
+                                append("&")
+                            }
+                            append(entry.key)
+                            append("=")
+                            append(URLEncoder.encode(entry.value, Charsets.UTF_8))
+                        }
+                    }
+                }
+
+            FetchChapterPagesPayload(
+                clientMutationId = clientMutationId,
+                pages =
+                    List(chapter.pageCount) { index ->
+                        "/api/v1/manga/${chapter.mangaId}/chapter/${chapter.index}/page/${index}$params"
+                    },
+                chapter = ChapterType(chapter),
+                syncConflict = syncConflictInfo,
+            )
         }
     }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/DownloadMutation.kt

@@ -1,3 +1,5 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import graphql.execution.DataFetcherResult
@@ -5,7 +7,6 @@ import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.withTimeout
 import org.jetbrains.exposed.sql.selectAll
 import org.jetbrains.exposed.sql.transactions.transaction
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.ChapterType
 import suwayomi.tachidesk.graphql.types.DownloadStatus
@@ -30,23 +31,21 @@ class DownloadMutation {
     )
 
     @RequireAuth
-    fun deleteDownloadedChapters(input: DeleteDownloadedChaptersInput): DataFetcherResult<DeleteDownloadedChaptersPayload?> {
+    fun deleteDownloadedChapters(input: DeleteDownloadedChaptersInput): DeleteDownloadedChaptersPayload? {
         val (clientMutationId, chapters) = input
 
-        return asDataFetcherResult {
+        Chapter.deleteChapters(chapters)
-            Chapter.deleteChapters(chapters)
 
-            DeleteDownloadedChaptersPayload(
+        return DeleteDownloadedChaptersPayload(
-                clientMutationId = clientMutationId,
+            clientMutationId = clientMutationId,
-                chapters =
+            chapters =
-                    transaction {
+                transaction {
-                        ChapterTable
+                    ChapterTable
-                            .selectAll()
+                        .selectAll()
-                            .where { ChapterTable.id inList chapters }
+                        .where { ChapterTable.id inList chapters }
-                            .map { ChapterType(it) }
+                        .map { ChapterType(it) }
-                    },
+                },
-            )
+        )
-        }
     }
 
     data class DeleteDownloadedChapterInput(
@@ -60,20 +59,18 @@ class DownloadMutation {
     )
 
     @RequireAuth
-    fun deleteDownloadedChapter(input: DeleteDownloadedChapterInput): DataFetcherResult<DeleteDownloadedChapterPayload?> {
+    fun deleteDownloadedChapter(input: DeleteDownloadedChapterInput): DeleteDownloadedChapterPayload? {
         val (clientMutationId, chapter) = input
 
-        return asDataFetcherResult {
+        Chapter.deleteChapters(listOf(chapter))
-            Chapter.deleteChapters(listOf(chapter))
 
-            DeleteDownloadedChapterPayload(
+        return DeleteDownloadedChapterPayload(
-                clientMutationId = clientMutationId,
+            clientMutationId = clientMutationId,
-                chapters =
+            chapters =
-                    transaction {
+                transaction {
-                        ChapterType(ChapterTable.selectAll().where { ChapterTable.id eq chapter }.first())
+                    ChapterType(ChapterTable.selectAll().where { ChapterTable.id eq chapter }.first())
-                    },
+                },
-            )
+        )
-        }
     }
 
     data class EnqueueChapterDownloadsInput(
@@ -87,28 +84,24 @@ class DownloadMutation {
     )
 
     @RequireAuth
-    fun enqueueChapterDownloads(
+    fun enqueueChapterDownloads(input: EnqueueChapterDownloadsInput): CompletableFuture<EnqueueChapterDownloadsPayload?> {
-        input: EnqueueChapterDownloadsInput,
-    ): CompletableFuture<DataFetcherResult<EnqueueChapterDownloadsPayload?>> {
         val (clientMutationId, chapters) = input
 
         return future {
-            asDataFetcherResult {
+            DownloadManager.enqueue(DownloadManager.EnqueueInput(chapters))
-                DownloadManager.enqueue(DownloadManager.EnqueueInput(chapters))
 
-                EnqueueChapterDownloadsPayload(
+            EnqueueChapterDownloadsPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    downloadStatus =
+                downloadStatus =
-                        withTimeout(30.seconds) {
+                    withTimeout(30.seconds) {
-                            DownloadStatus(
+                        DownloadStatus(
-                                DownloadManager.updates
+                            DownloadManager.updates
-                                    .first {
+                                .first {
-                                        DownloadManager.getStatus().queue.any { it.chapterId in chapters }
+                                    DownloadManager.getStatus().queue.any { it.chapterId in chapters }
-                                    }.let { DownloadManager.getStatus() },
+                                }.let { DownloadManager.getStatus() },
-                            )
+                        )
-                        },
+                    },
-                )
+            )
-            }
         }
     }
 
@@ -123,25 +116,23 @@ class DownloadMutation {
     )
 
     @RequireAuth
-    fun enqueueChapterDownload(input: EnqueueChapterDownloadInput): CompletableFuture<DataFetcherResult<EnqueueChapterDownloadPayload?>> {
+    fun enqueueChapterDownload(input: EnqueueChapterDownloadInput): CompletableFuture<EnqueueChapterDownloadPayload?> {
         val (clientMutationId, chapter) = input
 
         return future {
-            asDataFetcherResult {
+            DownloadManager.enqueue(DownloadManager.EnqueueInput(listOf(chapter)))
-                DownloadManager.enqueue(DownloadManager.EnqueueInput(listOf(chapter)))
 
-                EnqueueChapterDownloadPayload(
+            EnqueueChapterDownloadPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    downloadStatus =
+                downloadStatus =
-                        withTimeout(30.seconds) {
+                    withTimeout(30.seconds) {
-                            DownloadStatus(
+                        DownloadStatus(
-                                DownloadManager.updates
+                            DownloadManager.updates
-                                    .first { it.updates.any { it.downloadQueueItem.chapterId == chapter } }
+                                .first { it.updates.any { it.downloadQueueItem.chapterId == chapter } }
-                                    .let { DownloadManager.getStatus() },
+                                .let { DownloadManager.getStatus() },
-                            )
+                        )
-                        },
+                    },
-                )
+            )
-            }
         }
     }
 
@@ -156,30 +147,26 @@ class DownloadMutation {
     )
 
     @RequireAuth
-    fun dequeueChapterDownloads(
+    fun dequeueChapterDownloads(input: DequeueChapterDownloadsInput): CompletableFuture<DequeueChapterDownloadsPayload?> {
-        input: DequeueChapterDownloadsInput,
-    ): CompletableFuture<DataFetcherResult<DequeueChapterDownloadsPayload?>> {
         val (clientMutationId, chapters) = input
 
         return future {
-            asDataFetcherResult {
+            DownloadManager.dequeue(DownloadManager.EnqueueInput(chapters))
-                DownloadManager.dequeue(DownloadManager.EnqueueInput(chapters))
 
-                DequeueChapterDownloadsPayload(
+            DequeueChapterDownloadsPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    downloadStatus =
+                downloadStatus =
-                        withTimeout(30.seconds) {
+                    withTimeout(30.seconds) {
-                            DownloadStatus(
+                        DownloadStatus(
-                                DownloadManager.updates
+                            DownloadManager.updates
-                                    .first {
+                                .first {
-                                        it.updates.any {
+                                    it.updates.any {
-                                            it.downloadQueueItem.chapterId in chapters && it.type == DEQUEUED
+                                        it.downloadQueueItem.chapterId in chapters && it.type == DEQUEUED
-                                        }
+                                    }
-                                    }.let { DownloadManager.getStatus() },
+                                }.let { DownloadManager.getStatus() },
-                            )
+                        )
-                        },
+                    },
-                )
+            )
-            }
         }
     }
 
@@ -194,28 +181,26 @@ class DownloadMutation {
     )
 
     @RequireAuth
-    fun dequeueChapterDownload(input: DequeueChapterDownloadInput): CompletableFuture<DataFetcherResult<DequeueChapterDownloadPayload?>> {
+    fun dequeueChapterDownload(input: DequeueChapterDownloadInput): CompletableFuture<DequeueChapterDownloadPayload?> {
         val (clientMutationId, chapter) = input
 
         return future {
-            asDataFetcherResult {
+            DownloadManager.dequeue(DownloadManager.EnqueueInput(listOf(chapter)))
-                DownloadManager.dequeue(DownloadManager.EnqueueInput(listOf(chapter)))
 
-                DequeueChapterDownloadPayload(
+            DequeueChapterDownloadPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    downloadStatus =
+                downloadStatus =
-                        withTimeout(30.seconds) {
+                    withTimeout(30.seconds) {
-                            DownloadStatus(
+                        DownloadStatus(
-                                DownloadManager.updates
+                            DownloadManager.updates
-                                    .first {
+                                .first {
-                                        it.updates.any {
+                                    it.updates.any {
-                                            it.downloadQueueItem.chapterId == chapter && it.type == DEQUEUED
+                                        it.downloadQueueItem.chapterId == chapter && it.type == DEQUEUED
-                                        }
+                                    }
-                                    }.let { DownloadManager.getStatus() },
+                                }.let { DownloadManager.getStatus() },
-                            )
+                        )
-                        },
+                    },
-                )
+            )
-            }
         }
     }
 
@@ -229,23 +214,21 @@ class DownloadMutation {
     )
 
     @RequireAuth
-    fun startDownloader(input: StartDownloaderInput): CompletableFuture<DataFetcherResult<StartDownloaderPayload?>> =
+    fun startDownloader(input: StartDownloaderInput): CompletableFuture<StartDownloaderPayload?> =
         future {
-            asDataFetcherResult {
+            DownloadManager.start()
-                DownloadManager.start()
 
-                StartDownloaderPayload(
+            StartDownloaderPayload(
-                    input.clientMutationId,
+                input.clientMutationId,
-                    downloadStatus =
+                downloadStatus =
-                        withTimeout(30.seconds) {
+                    withTimeout(30.seconds) {
-                            DownloadStatus(
+                        DownloadStatus(
-                                DownloadManager.updates
+                            DownloadManager.updates
-                                    .first { it.status == Status.Started }
+                                .first { it.status == Status.Started }
-                                    .let { DownloadManager.getStatus() },
+                                .let { DownloadManager.getStatus() },
-                            )
+                        )
-                        },
+                    },
-                )
+            )
-            }
         }
 
     data class StopDownloaderInput(
@@ -258,23 +241,21 @@ class DownloadMutation {
     )
 
     @RequireAuth
-    fun stopDownloader(input: StopDownloaderInput): CompletableFuture<DataFetcherResult<StopDownloaderPayload?>> =
+    fun stopDownloader(input: StopDownloaderInput): CompletableFuture<StopDownloaderPayload?> =
         future {
-            asDataFetcherResult {
+            DownloadManager.stop()
-                DownloadManager.stop()
 
-                StopDownloaderPayload(
+            StopDownloaderPayload(
-                    input.clientMutationId,
+                input.clientMutationId,
-                    downloadStatus =
+                downloadStatus =
-                        withTimeout(30.seconds) {
+                    withTimeout(30.seconds) {
-                            DownloadStatus(
+                        DownloadStatus(
-                                DownloadManager.updates
+                            DownloadManager.updates
-                                    .first { it.status == Status.Stopped }
+                                .first { it.status == Status.Stopped }
-                                    .let { DownloadManager.getStatus() },
+                                .let { DownloadManager.getStatus() },
-                            )
+                        )
-                        },
+                    },
-                )
+            )
-            }
         }
 
     data class ClearDownloaderInput(
@@ -287,23 +268,21 @@ class DownloadMutation {
     )
 
     @RequireAuth
-    fun clearDownloader(input: ClearDownloaderInput): CompletableFuture<DataFetcherResult<ClearDownloaderPayload?>> =
+    fun clearDownloader(input: ClearDownloaderInput): CompletableFuture<ClearDownloaderPayload?> =
         future {
-            asDataFetcherResult {
+            DownloadManager.clear()
-                DownloadManager.clear()
 
-                ClearDownloaderPayload(
+            ClearDownloaderPayload(
-                    input.clientMutationId,
+                input.clientMutationId,
-                    downloadStatus =
+                downloadStatus =
-                        withTimeout(30.seconds) {
+                    withTimeout(30.seconds) {
-                            DownloadStatus(
+                        DownloadStatus(
-                                DownloadManager.updates
+                            DownloadManager.updates
-                                    .first { it.status == Status.Stopped }
+                                .first { it.status == Status.Stopped }
-                                    .let { DownloadManager.getStatus() },
+                                .let { DownloadManager.getStatus() },
-                            )
+                        )
-                        },
+                    },
-                )
+            )
-            }
         }
 
     data class ReorderChapterDownloadInput(
@@ -318,25 +297,23 @@ class DownloadMutation {
     )
 
     @RequireAuth
-    fun reorderChapterDownload(input: ReorderChapterDownloadInput): CompletableFuture<DataFetcherResult<ReorderChapterDownloadPayload?>> {
+    fun reorderChapterDownload(input: ReorderChapterDownloadInput): CompletableFuture<ReorderChapterDownloadPayload?> {
         val (clientMutationId, chapter, to) = input
 
         return future {
-            asDataFetcherResult {
+            DownloadManager.reorder(chapter, to)
-                DownloadManager.reorder(chapter, to)
 
-                ReorderChapterDownloadPayload(
+            ReorderChapterDownloadPayload(
-                    clientMutationId,
+                clientMutationId,
-                    downloadStatus =
+                downloadStatus =
-                        withTimeout(30.seconds) {
+                    withTimeout(30.seconds) {
-                            DownloadStatus(
+                        DownloadStatus(
-                                DownloadManager.updates
+                            DownloadManager.updates
-                                    .first { it.updates.indexOfFirst { it.downloadQueueItem.chapterId == chapter } <= to }
+                                .first { it.updates.indexOfFirst { it.downloadQueueItem.chapterId == chapter } <= to }
-                                    .let { DownloadManager.getStatus() },
+                                .let { DownloadManager.getStatus() },
-                            )
+                        )
-                        },
+                    },
-                )
+            )
-            }
         }
     }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/ExtensionMutation.kt

@@ -1,3 +1,5 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import eu.kanade.tachiyomi.source.local.LocalSource
@@ -5,7 +7,6 @@ import graphql.execution.DataFetcherResult
 import io.javalin.http.UploadedFile
 import org.jetbrains.exposed.sql.selectAll
 import org.jetbrains.exposed.sql.transactions.transaction
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.ExtensionType
 import suwayomi.tachidesk.manga.impl.extension.Extension
@@ -75,51 +76,47 @@ class ExtensionMutation {
     }
 
     @RequireAuth
-    fun updateExtension(input: UpdateExtensionInput): CompletableFuture<DataFetcherResult<UpdateExtensionPayload?>> {
+    fun updateExtension(input: UpdateExtensionInput): CompletableFuture<UpdateExtensionPayload?> {
         val (clientMutationId, id, patch) = input
 
         return future {
-            asDataFetcherResult {
+            updateExtensions(listOf(id), patch)
-                updateExtensions(listOf(id), patch)
 
-                val extension =
+            val extension =
-                    transaction {
+                transaction {
-                        ExtensionTable
+                    ExtensionTable
-                            .selectAll()
+                        .selectAll()
-                            .where { ExtensionTable.pkgName eq id }
+                        .where { ExtensionTable.pkgName eq id }
-                            .firstOrNull()
+                        .firstOrNull()
-                            ?.let { ExtensionType(it) }
+                        ?.let { ExtensionType(it) }
-                    }
+                }
 
-                UpdateExtensionPayload(
+            UpdateExtensionPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    extension = extension,
+                extension = extension,
-                )
+            )
-            }
         }
     }
 
     @RequireAuth
-    fun updateExtensions(input: UpdateExtensionsInput): CompletableFuture<DataFetcherResult<UpdateExtensionsPayload?>> {
+    fun updateExtensions(input: UpdateExtensionsInput): CompletableFuture<UpdateExtensionsPayload?> {
         val (clientMutationId, ids, patch) = input
 
         return future {
-            asDataFetcherResult {
+            updateExtensions(ids, patch)
-                updateExtensions(ids, patch)
 
-                val extensions =
+            val extensions =
-                    transaction {
+                transaction {
-                        ExtensionTable
+                    ExtensionTable
-                            .selectAll()
+                        .selectAll()
-                            .where { ExtensionTable.pkgName inList ids }
+                        .where { ExtensionTable.pkgName inList ids }
-                            .map { ExtensionType(it) }
+                        .map { ExtensionType(it) }
-                    }
+                }
 
-                UpdateExtensionsPayload(
+            UpdateExtensionsPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    extensions = extensions,
+                extensions = extensions,
-                )
+            )
-            }
         }
     }
 
@@ -133,26 +130,24 @@ class ExtensionMutation {
     )
 
     @RequireAuth
-    fun fetchExtensions(input: FetchExtensionsInput): CompletableFuture<DataFetcherResult<FetchExtensionsPayload?>> {
+    fun fetchExtensions(input: FetchExtensionsInput): CompletableFuture<FetchExtensionsPayload?> {
         val (clientMutationId) = input
 
         return future {
-            asDataFetcherResult {
+            ExtensionsList.fetchExtensions()
-                ExtensionsList.fetchExtensions()
 
-                val extensions =
+            val extensions =
-                    transaction {
+                transaction {
-                        ExtensionTable
+                    ExtensionTable
-                            .selectAll()
+                        .selectAll()
-                            .where { ExtensionTable.name neq LocalSource.EXTENSION_NAME }
+                        .where { ExtensionTable.name neq LocalSource.EXTENSION_NAME }
-                            .map { ExtensionType(it) }
+                        .map { ExtensionType(it) }
-                    }
+                }
 
-                FetchExtensionsPayload(
+            FetchExtensionsPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    extensions = extensions,
+                extensions = extensions,
-                )
+            )
-            }
         }
     }
 
@@ -167,23 +162,19 @@ class ExtensionMutation {
     )
 
     @RequireAuth
-    fun installExternalExtension(
+    fun installExternalExtension(input: InstallExternalExtensionInput): CompletableFuture<InstallExternalExtensionPayload?> {
-        input: InstallExternalExtensionInput,
-    ): CompletableFuture<DataFetcherResult<InstallExternalExtensionPayload?>> {
         val (clientMutationId, extensionFile) = input
 
         return future {
-            asDataFetcherResult {
+            Extension.installExternalExtension(extensionFile.content(), extensionFile.filename())
-                Extension.installExternalExtension(extensionFile.content(), extensionFile.filename())
 
-                val dbExtension =
+            val dbExtension =
-                    transaction { ExtensionTable.selectAll().where { ExtensionTable.apkName eq extensionFile.filename() }.first() }
+                transaction { ExtensionTable.selectAll().where { ExtensionTable.apkName eq extensionFile.filename() }.first() }
 
-                InstallExternalExtensionPayload(
+            InstallExternalExtensionPayload(
-                    clientMutationId,
+                clientMutationId,
-                    extension = ExtensionType(dbExtension),
+                extension = ExtensionType(dbExtension),
-                )
+            )
-            }
         }
     }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/ImageMutation.kt

@@ -1,3 +1,5 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import suwayomi.tachidesk.graphql.directives.RequireAuth

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/InfoMutation.kt

@@ -1,9 +1,10 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import graphql.execution.DataFetcherResult
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.withTimeout
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.UpdateState.DOWNLOADING
 import suwayomi.tachidesk.graphql.types.UpdateState.ERROR
@@ -26,55 +27,51 @@ class InfoMutation {
     )
 
     @RequireAuth
-    fun updateWebUI(input: WebUIUpdateInput): CompletableFuture<DataFetcherResult<WebUIUpdatePayload?>> {
+    fun updateWebUI(input: WebUIUpdateInput): CompletableFuture<WebUIUpdatePayload?> {
         return future {
-            asDataFetcherResult {
+            withTimeout(30.seconds) {
-                withTimeout(30.seconds) {
+                if (WebInterfaceManager.status.value.state === DOWNLOADING) {
-                    if (WebInterfaceManager.status.value.state === DOWNLOADING) {
+                    return@withTimeout WebUIUpdatePayload(input.clientMutationId, WebInterfaceManager.status.value)
-                        return@withTimeout WebUIUpdatePayload(input.clientMutationId, WebInterfaceManager.status.value)
+                }
-                    }
 
-                    val flavor = WebUIFlavor.current
+                val flavor = WebUIFlavor.current
 
-                    val (version, updateAvailable) = WebInterfaceManager.isUpdateAvailable(flavor)
+                val (version, updateAvailable) = WebInterfaceManager.isUpdateAvailable(flavor)
 
-                    if (!updateAvailable) {
+                if (!updateAvailable) {
-                        val didUpdateCheckFail = version.isEmpty()
+                    val didUpdateCheckFail = version.isEmpty()
 
-                        return@withTimeout WebUIUpdatePayload(
+                    return@withTimeout WebUIUpdatePayload(
-                            input.clientMutationId,
-                            WebInterfaceManager.getStatus(version, if (didUpdateCheckFail) ERROR else IDLE),
-                        )
-                    }
-                    try {
-                        WebInterfaceManager.startDownloadInScope(flavor, version)
-                    } catch (e: Exception) {
-                        // ignore since we use the status anyway
-                    }
-
-                    WebUIUpdatePayload(
                         input.clientMutationId,
-                        updateStatus = WebInterfaceManager.status.first { it.state == DOWNLOADING },
+                        WebInterfaceManager.getStatus(version, if (didUpdateCheckFail) ERROR else IDLE),
                     )
                 }
+                try {
+                    WebInterfaceManager.startDownloadInScope(flavor, version)
+                } catch (e: Exception) {
+                    // ignore since we use the status anyway
+                }
+
+                WebUIUpdatePayload(
+                    input.clientMutationId,
+                    updateStatus = WebInterfaceManager.status.first { it.state == DOWNLOADING },
+                )
             }
         }
     }
 
     @RequireAuth
-    fun resetWebUIUpdateStatus(): CompletableFuture<DataFetcherResult<WebUIUpdateStatus?>> =
+    fun resetWebUIUpdateStatus(): CompletableFuture<WebUIUpdateStatus?> =
         future {
-            asDataFetcherResult {
+            withTimeout(30.seconds) {
-                withTimeout(30.seconds) {
+                val isUpdateFinished = WebInterfaceManager.status.value.state != DOWNLOADING
-                    val isUpdateFinished = WebInterfaceManager.status.value.state != DOWNLOADING
+                if (!isUpdateFinished) {
-                    if (!isUpdateFinished) {
+                    throw Exception("Status reset is not allowed during status \"$DOWNLOADING\"")
-                        throw Exception("Status reset is not allowed during status \"$DOWNLOADING\"")
-                    }
-
-                    WebInterfaceManager.resetStatus()
-
-                    WebInterfaceManager.status.first { it.state == IDLE }
                 }
+
+                WebInterfaceManager.resetStatus()
+
+                WebInterfaceManager.status.first { it.state == IDLE }
             }
         }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/KoreaderSyncMutation.kt

@@ -1,10 +1,11 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import graphql.execution.DataFetcherResult
 import org.jetbrains.exposed.sql.selectAll
 import org.jetbrains.exposed.sql.transactions.transaction
 import org.jetbrains.exposed.sql.update
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.ChapterType
 import suwayomi.tachidesk.graphql.types.KoSyncConnectPayload
@@ -62,26 +63,24 @@ class KoreaderSyncMutation {
     )
 
     @RequireAuth
-    fun pushKoSyncProgress(input: PushKoSyncProgressInput): CompletableFuture<DataFetcherResult<PushKoSyncProgressPayload?>> =
+    fun pushKoSyncProgress(input: PushKoSyncProgressInput): CompletableFuture<PushKoSyncProgressPayload?> =
         future {
-            asDataFetcherResult {
+            KoreaderSyncService.pushProgress(input.chapterId)
-                KoreaderSyncService.pushProgress(input.chapterId)
 
-                val chapter =
+            val chapter =
-                    transaction {
+                transaction {
-                        ChapterTable
+                    ChapterTable
-                            .selectAll()
+                        .selectAll()
-                            .where { ChapterTable.id eq input.chapterId }
+                        .where { ChapterTable.id eq input.chapterId }
-                            .firstOrNull()
+                        .firstOrNull()
-                            ?.let { ChapterType(it) }
+                        ?.let { ChapterType(it) }
-                    }
+                }
 
-                PushKoSyncProgressPayload(
+            PushKoSyncProgressPayload(
-                    clientMutationId = input.clientMutationId,
+                clientMutationId = input.clientMutationId,
-                    success = true,
+                success = true,
-                    chapter = chapter,
+                chapter = chapter,
-                )
+            )
-            }
         }
 
     data class PullKoSyncProgressInput(
@@ -96,45 +95,43 @@ class KoreaderSyncMutation {
     )
 
     @RequireAuth
-    fun pullKoSyncProgress(input: PullKoSyncProgressInput): CompletableFuture<DataFetcherResult<PullKoSyncProgressPayload?>> =
+    fun pullKoSyncProgress(input: PullKoSyncProgressInput): CompletableFuture<PullKoSyncProgressPayload?> =
         future {
-            asDataFetcherResult {
+            val syncResult = KoreaderSyncService.checkAndPullProgress(input.chapterId)
-                val syncResult = KoreaderSyncService.checkAndPullProgress(input.chapterId)
+            var syncConflictInfo: SyncConflictInfoType? = null
-                var syncConflictInfo: SyncConflictInfoType? = null
 
-                if (syncResult != null) {
+            if (syncResult != null) {
-                    if (syncResult.isConflict) {
+                if (syncResult.isConflict) {
-                        syncConflictInfo =
+                    syncConflictInfo =
-                            SyncConflictInfoType(
+                        SyncConflictInfoType(
-                                deviceName = syncResult.device,
+                            deviceName = syncResult.device,
-                                remotePage = syncResult.pageRead,
+                            remotePage = syncResult.pageRead,
-                            )
+                        )
-                    }
+                }
 
-                    if (syncResult.shouldUpdate) {
+                if (syncResult.shouldUpdate) {
-                        transaction {
+                    transaction {
-                            ChapterTable.update({ ChapterTable.id eq input.chapterId }) {
+                        ChapterTable.update({ ChapterTable.id eq input.chapterId }) {
-                                it[lastPageRead] = syncResult.pageRead
+                            it[lastPageRead] = syncResult.pageRead
-                                it[lastReadAt] = syncResult.timestamp
+                            it[lastReadAt] = syncResult.timestamp
-                            }
                         }
                     }
                 }
-
-                val chapter =
-                    transaction {
-                        ChapterTable
-                            .selectAll()
-                            .where { ChapterTable.id eq input.chapterId }
-                            .firstOrNull()
-                            ?.let { ChapterType(it) }
-                    }
-
-                PullKoSyncProgressPayload(
-                    clientMutationId = input.clientMutationId,
-                    chapter = chapter,
-                    syncConflict = syncConflictInfo,
-                )
             }
+
+            val chapter =
+                transaction {
+                    ChapterTable
+                        .selectAll()
+                        .where { ChapterTable.id eq input.chapterId }
+                        .firstOrNull()
+                        ?.let { ChapterType(it) }
+                }
+
+            PullKoSyncProgressPayload(
+                clientMutationId = input.clientMutationId,
+                chapter = chapter,
+                syncConflict = syncConflictInfo,
+            )
         }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/MangaMutation.kt

@@ -1,6 +1,7 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
-import graphql.execution.DataFetcherResult
 import org.jetbrains.exposed.sql.LikePattern
 import org.jetbrains.exposed.sql.Op
 import org.jetbrains.exposed.sql.SqlExpressionBuilder.eq
@@ -12,7 +13,6 @@ import org.jetbrains.exposed.sql.or
 import org.jetbrains.exposed.sql.selectAll
 import org.jetbrains.exposed.sql.transactions.transaction
 import org.jetbrains.exposed.sql.update
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.MangaMetaType
 import suwayomi.tachidesk.graphql.types.MangaType
@@ -98,44 +98,40 @@ class MangaMutation {
     }
 
     @RequireAuth
-    fun updateManga(input: UpdateMangaInput): CompletableFuture<DataFetcherResult<UpdateMangaPayload?>> {
+    fun updateManga(input: UpdateMangaInput): CompletableFuture<UpdateMangaPayload?> {
         val (clientMutationId, id, patch) = input
 
         return future {
-            asDataFetcherResult {
+            updateMangas(listOf(id), patch)
-                updateMangas(listOf(id), patch)
 
-                val manga =
+            val manga =
-                    transaction {
+                transaction {
-                        MangaType(MangaTable.selectAll().where { MangaTable.id eq id }.first())
+                    MangaType(MangaTable.selectAll().where { MangaTable.id eq id }.first())
-                    }
+                }
 
-                UpdateMangaPayload(
+            UpdateMangaPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    manga = manga,
+                manga = manga,
-                )
+            )
-            }
         }
     }
 
     @RequireAuth
-    fun updateMangas(input: UpdateMangasInput): CompletableFuture<DataFetcherResult<UpdateMangasPayload?>> {
+    fun updateMangas(input: UpdateMangasInput): CompletableFuture<UpdateMangasPayload?> {
         val (clientMutationId, ids, patch) = input
 
         return future {
-            asDataFetcherResult {
+            updateMangas(ids, patch)
-                updateMangas(ids, patch)
 
-                val mangas =
+            val mangas =
-                    transaction {
+                transaction {
-                        MangaTable.selectAll().where { MangaTable.id inList ids }.map { MangaType(it) }
+                    MangaTable.selectAll().where { MangaTable.id inList ids }.map { MangaType(it) }
-                    }
+                }
 
-                UpdateMangasPayload(
+            UpdateMangasPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    mangas = mangas,
+                mangas = mangas,
-                )
+            )
-            }
         }
     }
 
@@ -150,22 +146,20 @@ class MangaMutation {
     )
 
     @RequireAuth
-    fun fetchManga(input: FetchMangaInput): CompletableFuture<DataFetcherResult<FetchMangaPayload?>> {
+    fun fetchManga(input: FetchMangaInput): CompletableFuture<FetchMangaPayload?> {
         val (clientMutationId, id) = input
 
         return future {
-            asDataFetcherResult {
+            Manga.fetchManga(id)
-                Manga.fetchManga(id)
 
-                val manga =
+            val manga =
-                    transaction {
+                transaction {
-                        MangaTable.selectAll().where { MangaTable.id eq id }.first()
+                    MangaTable.selectAll().where { MangaTable.id eq id }.first()
-                    }
+                }
-                FetchMangaPayload(
+            FetchMangaPayload(
-                    clientMutationId = clientMutationId,
+                clientMutationId = clientMutationId,
-                    manga = MangaType(manga),
+                manga = MangaType(manga),
-                )
+            )
-            }
         }
     }
 
@@ -180,14 +174,12 @@ class MangaMutation {
     )
 
     @RequireAuth
-    fun setMangaMeta(input: SetMangaMetaInput): DataFetcherResult<SetMangaMetaPayload?> {
+    fun setMangaMeta(input: SetMangaMetaInput): SetMangaMetaPayload? {
         val (clientMutationId, meta) = input
 
-        return asDataFetcherResult {
+        Manga.modifyMangaMeta(meta.mangaId, meta.key, meta.value)
-            Manga.modifyMangaMeta(meta.mangaId, meta.key, meta.value)
 
-            SetMangaMetaPayload(clientMutationId, meta)
+        return SetMangaMetaPayload(clientMutationId, meta)
-        }
     }
 
     data class DeleteMangaMetaInput(
@@ -203,34 +195,32 @@ class MangaMutation {
     )
 
     @RequireAuth
-    fun deleteMangaMeta(input: DeleteMangaMetaInput): DataFetcherResult<DeleteMangaMetaPayload?> {
+    fun deleteMangaMeta(input: DeleteMangaMetaInput): DeleteMangaMetaPayload? {
         val (clientMutationId, mangaId, key) = input
 
-        return asDataFetcherResult {
+        val (meta, manga) =
-            val (meta, manga) =
+            transaction {
-                transaction {
+                val meta =
-                    val meta =
+                    MangaMetaTable
-                        MangaMetaTable
+                        .selectAll()
-                            .selectAll()
+                        .where { (MangaMetaTable.ref eq mangaId) and (MangaMetaTable.key eq key) }
-                            .where { (MangaMetaTable.ref eq mangaId) and (MangaMetaTable.key eq key) }
+                        .firstOrNull()
-                            .firstOrNull()
 
-                    MangaMetaTable.deleteWhere { (MangaMetaTable.ref eq mangaId) and (MangaMetaTable.key eq key) }
+                MangaMetaTable.deleteWhere { (MangaMetaTable.ref eq mangaId) and (MangaMetaTable.key eq key) }
 
-                    val manga =
+                val manga =
-                        transaction {
+                    transaction {
-                            MangaType(MangaTable.selectAll().where { MangaTable.id eq mangaId }.first())
+                        MangaType(MangaTable.selectAll().where { MangaTable.id eq mangaId }.first())
-                        }
+                    }
 
-                    if (meta != null) {
+                if (meta != null) {
-                        MangaMetaType(meta)
+                    MangaMetaType(meta)
-                    } else {
+                } else {
-                        null
+                    null
-                    } to manga
+                } to manga
-                }
+            }
 
-            DeleteMangaMetaPayload(clientMutationId, meta, manga)
+        return DeleteMangaMetaPayload(clientMutationId, meta, manga)
-        }
     }
 
     data class SetMangaMetasItem(
@@ -250,43 +240,41 @@ class MangaMutation {
     )
 
     @RequireAuth
-    fun setMangaMetas(input: SetMangaMetasInput): DataFetcherResult<SetMangaMetasPayload?> {
+    fun setMangaMetas(input: SetMangaMetasInput): SetMangaMetasPayload? {
         val (clientMutationId, items) = input
 
-        return asDataFetcherResult {
+        val metaByMangaId =
-            val metaByMangaId =
+            items
-                items
+                .flatMap { item ->
-                    .flatMap { item ->
+                    val metaMap = item.metas.associate { it.key to it.value }
-                        val metaMap = item.metas.associate { it.key to it.value }
+                    item.mangaIds.map { mangaId -> mangaId to metaMap }
-                        item.mangaIds.map { mangaId -> mangaId to metaMap }
+                }.groupBy({ it.first }, { it.second })
-                    }.groupBy({ it.first }, { it.second })
+                .mapValues { (_, maps) -> maps.reduce { acc, map -> acc + map } }
-                    .mapValues { (_, maps) -> maps.reduce { acc, map -> acc + map } }
 
-            Manga.modifyMangasMetas(metaByMangaId)
+        Manga.modifyMangasMetas(metaByMangaId)
 
-            val allMangaIds = metaByMangaId.keys
+        val allMangaIds = metaByMangaId.keys
-            val allMetaKeys = metaByMangaId.values.flatMap { it.keys }.distinct()
+        val allMetaKeys = metaByMangaId.values.flatMap { it.keys }.distinct()
 
-            val (updatedMetas, mangas) =
+        val (updatedMetas, mangas) =
-                transaction {
+            transaction {
-                    val updatedMetas =
+                val updatedMetas =
-                        MangaMetaTable
+                    MangaMetaTable
-                            .selectAll()
+                        .selectAll()
-                            .where { (MangaMetaTable.ref inList allMangaIds) and (MangaMetaTable.key inList allMetaKeys) }
+                        .where { (MangaMetaTable.ref inList allMangaIds) and (MangaMetaTable.key inList allMetaKeys) }
-                            .map { MangaMetaType(it) }
+                        .map { MangaMetaType(it) }
 
-                    val mangas =
+                val mangas =
-                        MangaTable
+                    MangaTable
-                            .selectAll()
+                        .selectAll()
-                            .where { MangaTable.id inList allMangaIds }
+                        .where { MangaTable.id inList allMangaIds }
-                            .map { MangaType(it) }
+                        .map { MangaType(it) }
-                            .distinctBy { it.id }
+                        .distinctBy { it.id }
 
-                    updatedMetas to mangas
+                updatedMetas to mangas
-                }
+            }
 
-            SetMangaMetasPayload(clientMutationId, updatedMetas, mangas)
+        return SetMangaMetasPayload(clientMutationId, updatedMetas, mangas)
-        }
     }
 
     data class DeleteMangaMetasItem(
@@ -307,63 +295,61 @@ class MangaMutation {
     )
 
     @RequireAuth
-    fun deleteMangaMetas(input: DeleteMangaMetasInput): DataFetcherResult<DeleteMangaMetasPayload?> {
+    fun deleteMangaMetas(input: DeleteMangaMetasInput): DeleteMangaMetasPayload? {
         val (clientMutationId, items) = input
 
-        return asDataFetcherResult {
+        items.forEach { item ->
-            items.forEach { item ->
+            require(!item.keys.isNullOrEmpty() || !item.prefixes.isNullOrEmpty()) {
-                require(!item.keys.isNullOrEmpty() || !item.prefixes.isNullOrEmpty()) {
+                "Either 'keys' or 'prefixes' must be provided for each item"
-                    "Either 'keys' or 'prefixes' must be provided for each item"
+            }
+        }
+
+        val (allDeletedMetas, allMangaIds) =
+            transaction {
+                val deletedMetas = mutableListOf<MangaMetaType>()
+                val mangaIds = mutableSetOf<Int>()
+
+                items.forEach { item ->
+                    val keyCondition: Op<Boolean>? =
+                        item.keys?.takeIf { it.isNotEmpty() }?.let { MangaMetaTable.key inList it }
+
+                    val prefixCondition: Op<Boolean>? =
+                        item.prefixes
+                            ?.filter { it.isNotEmpty() }
+                            ?.map { (MangaMetaTable.key like LikePattern("$it%")) as Op<Boolean> }
+                            ?.reduceOrNull { acc, op -> acc or op }
+
+                    val metaKeyCondition =
+                        if (keyCondition != null && prefixCondition != null) {
+                            keyCondition or prefixCondition
+                        } else {
+                            keyCondition ?: prefixCondition!!
+                        }
+
+                    val condition = (MangaMetaTable.ref inList item.mangaIds) and metaKeyCondition
+
+                    deletedMetas +=
+                        MangaMetaTable
+                            .selectAll()
+                            .where { condition }
+                            .map { MangaMetaType(it) }
+
+                    MangaMetaTable.deleteWhere { condition }
+                    mangaIds += item.mangaIds
                 }
+
+                deletedMetas to mangaIds
             }
 
-            val (allDeletedMetas, allMangaIds) =
+        val mangas =
-                transaction {
+            transaction {
-                    val deletedMetas = mutableListOf<MangaMetaType>()
+                MangaTable
-                    val mangaIds = mutableSetOf<Int>()
+                    .selectAll()
+                    .where { MangaTable.id inList allMangaIds }
+                    .map { MangaType(it) }
+                    .distinctBy { it.id }
+            }
 
-                    items.forEach { item ->
+        return DeleteMangaMetasPayload(clientMutationId, allDeletedMetas, mangas)
-                        val keyCondition: Op<Boolean>? =
-                            item.keys?.takeIf { it.isNotEmpty() }?.let { MangaMetaTable.key inList it }
-
-                        val prefixCondition: Op<Boolean>? =
-                            item.prefixes
-                                ?.filter { it.isNotEmpty() }
-                                ?.map { (MangaMetaTable.key like LikePattern("$it%")) as Op<Boolean> }
-                                ?.reduceOrNull { acc, op -> acc or op }
-
-                        val metaKeyCondition =
-                            if (keyCondition != null && prefixCondition != null) {
-                                keyCondition or prefixCondition
-                            } else {
-                                keyCondition ?: prefixCondition!!
-                            }
-
-                        val condition = (MangaMetaTable.ref inList item.mangaIds) and metaKeyCondition
-
-                        deletedMetas +=
-                            MangaMetaTable
-                                .selectAll()
-                                .where { condition }
-                                .map { MangaMetaType(it) }
-
-                        MangaMetaTable.deleteWhere { condition }
-                        mangaIds += item.mangaIds
-                    }
-
-                    deletedMetas to mangaIds
-                }
-
-            val mangas =
-                transaction {
-                    MangaTable
-                        .selectAll()
-                        .where { MangaTable.id inList allMangaIds }
-                        .map { MangaType(it) }
-                        .distinctBy { it.id }
-                }
-
-            DeleteMangaMetasPayload(clientMutationId, allDeletedMetas, mangas)
-        }
     }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/MetaMutation.kt

@@ -1,3 +1,5 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import graphql.execution.DataFetcherResult
@@ -12,7 +14,6 @@ import org.jetbrains.exposed.sql.selectAll
 import org.jetbrains.exposed.sql.transactions.transaction
 import suwayomi.tachidesk.global.impl.GlobalMeta
 import suwayomi.tachidesk.global.model.table.GlobalMetaTable
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.GlobalMetaType
 import suwayomi.tachidesk.graphql.types.MetaInput
@@ -29,14 +30,12 @@ class MetaMutation {
     )
 
     @RequireAuth
-    fun setGlobalMeta(input: SetGlobalMetaInput): DataFetcherResult<SetGlobalMetaPayload?> {
+    fun setGlobalMeta(input: SetGlobalMetaInput): SetGlobalMetaPayload? {
         val (clientMutationId, meta) = input
 
-        return asDataFetcherResult {
+        GlobalMeta.modifyMeta(meta.key, meta.value)
-            GlobalMeta.modifyMeta(meta.key, meta.value)
 
-            SetGlobalMetaPayload(clientMutationId, meta)
+        return SetGlobalMetaPayload(clientMutationId, meta)
-        }
     }
 
     data class DeleteGlobalMetaInput(
@@ -50,29 +49,27 @@ class MetaMutation {
     )
 
     @RequireAuth
-    fun deleteGlobalMeta(input: DeleteGlobalMetaInput): DataFetcherResult<DeleteGlobalMetaPayload?> {
+    fun deleteGlobalMeta(input: DeleteGlobalMetaInput): DeleteGlobalMetaPayload? {
         val (clientMutationId, key) = input
 
-        return asDataFetcherResult {
+        val meta =
-            val meta =
+            transaction {
-                transaction {
+                val meta =
-                    val meta =
+                    GlobalMetaTable
-                        GlobalMetaTable
+                        .selectAll()
-                            .selectAll()
+                        .where { GlobalMetaTable.key eq key }
-                            .where { GlobalMetaTable.key eq key }
+                        .firstOrNull()
-                            .firstOrNull()
 
-                    GlobalMetaTable.deleteWhere { GlobalMetaTable.key eq key }
+                GlobalMetaTable.deleteWhere { GlobalMetaTable.key eq key }
 
-                    if (meta != null) {
+                if (meta != null) {
-                        GlobalMetaType(meta)
+                    GlobalMetaType(meta)
-                    } else {
+                } else {
-                        null
+                    null
-                    }
                 }
+            }
 
-            DeleteGlobalMetaPayload(clientMutationId, meta)
+        return DeleteGlobalMetaPayload(clientMutationId, meta)
-        }
     }
 
     data class SetGlobalMetasInput(
@@ -86,23 +83,21 @@ class MetaMutation {
     )
 
     @RequireAuth
-    fun setGlobalMetas(input: SetGlobalMetasInput): DataFetcherResult<SetGlobalMetasPayload?> {
+    fun setGlobalMetas(input: SetGlobalMetasInput): SetGlobalMetasPayload? {
         val (clientMutationId, metas) = input
 
-        return asDataFetcherResult {
+        val metaMap = metas.associate { it.key to it.value }
-            val metaMap = metas.associate { it.key to it.value }
+        GlobalMeta.modifyMetas(metaMap)
-            GlobalMeta.modifyMetas(metaMap)
 
-            val updatedMetas =
+        val updatedMetas =
-                transaction {
+            transaction {
-                    GlobalMetaTable
+                GlobalMetaTable
-                        .selectAll()
+                    .selectAll()
-                        .where { GlobalMetaTable.key inList metaMap.keys }
+                    .where { GlobalMetaTable.key inList metaMap.keys }
-                        .map { GlobalMetaType(it) }
+                    .map { GlobalMetaType(it) }
-                }
+            }
 
-            SetGlobalMetasPayload(clientMutationId, updatedMetas)
+        return SetGlobalMetasPayload(clientMutationId, updatedMetas)
-        }
     }
 
     data class DeleteGlobalMetasInput(
@@ -117,43 +112,41 @@ class MetaMutation {
     )
 
     @RequireAuth
-    fun deleteGlobalMetas(input: DeleteGlobalMetasInput): DataFetcherResult<DeleteGlobalMetasPayload?> {
+    fun deleteGlobalMetas(input: DeleteGlobalMetasInput): DeleteGlobalMetasPayload? {
         val (clientMutationId, keys, prefixes) = input
 
-        return asDataFetcherResult {
+        require(!keys.isNullOrEmpty() || !prefixes.isNullOrEmpty()) {
-            require(!keys.isNullOrEmpty() || !prefixes.isNullOrEmpty()) {
+            "Either 'keys' or 'prefixes' must be provided"
-                "Either 'keys' or 'prefixes' must be provided"
+        }
+
+        val metas =
+            transaction {
+                val keyCondition: Op<Boolean>? = keys?.takeIf { it.isNotEmpty() }?.let { GlobalMetaTable.key inList it }
+
+                val prefixCondition: Op<Boolean>? =
+                    prefixes
+                        ?.filter { it.isNotEmpty() }
+                        ?.map { (GlobalMetaTable.key like LikePattern("$it%")) as Op<Boolean> }
+                        ?.reduceOrNull { acc, op -> acc or op }
+
+                val finalCondition =
+                    if (keyCondition != null && prefixCondition != null) {
+                        keyCondition or prefixCondition
+                    } else {
+                        keyCondition ?: prefixCondition!!
+                    }
+
+                val metas =
+                    GlobalMetaTable
+                        .selectAll()
+                        .where { finalCondition }
+                        .map { GlobalMetaType(it) }
+
+                GlobalMetaTable.deleteWhere { finalCondition }
+
+                metas
             }
 
-            val metas =
+        return DeleteGlobalMetasPayload(clientMutationId, metas)
-                transaction {
-                    val keyCondition: Op<Boolean>? = keys?.takeIf { it.isNotEmpty() }?.let { GlobalMetaTable.key inList it }
-
-                    val prefixCondition: Op<Boolean>? =
-                        prefixes
-                            ?.filter { it.isNotEmpty() }
-                            ?.map { (GlobalMetaTable.key like LikePattern("$it%")) as Op<Boolean> }
-                            ?.reduceOrNull { acc, op -> acc or op }
-
-                    val finalCondition =
-                        if (keyCondition != null && prefixCondition != null) {
-                            keyCondition or prefixCondition
-                        } else {
-                            keyCondition ?: prefixCondition!!
-                        }
-
-                    val metas =
-                        GlobalMetaTable
-                            .selectAll()
-                            .where { finalCondition }
-                            .map { GlobalMetaType(it) }
-
-                    GlobalMetaTable.deleteWhere { finalCondition }
-
-                    metas
-                }
-
-            DeleteGlobalMetasPayload(clientMutationId, metas)
-        }
     }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/SettingsMutation.kt

@@ -1,3 +1,5 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import com.expediagroup.graphql.generator.annotations.GraphQLIgnore

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/SourceMutation.kt

@@ -1,3 +1,5 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import androidx.preference.CheckBoxPreference
@@ -5,7 +7,6 @@ import androidx.preference.EditTextPreference
 import androidx.preference.ListPreference
 import androidx.preference.MultiSelectListPreference
 import androidx.preference.SwitchPreferenceCompat
-import graphql.execution.DataFetcherResult
 import org.jetbrains.exposed.sql.LikePattern
 import org.jetbrains.exposed.sql.Op
 import org.jetbrains.exposed.sql.SqlExpressionBuilder.eq
@@ -16,7 +17,6 @@ import org.jetbrains.exposed.sql.deleteWhere
 import org.jetbrains.exposed.sql.or
 import org.jetbrains.exposed.sql.selectAll
 import org.jetbrains.exposed.sql.transactions.transaction
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.FilterChange
 import suwayomi.tachidesk.graphql.types.MangaType
@@ -47,14 +47,12 @@ class SourceMutation {
     )
 
     @RequireAuth
-    fun setSourceMeta(input: SetSourceMetaInput): DataFetcherResult<SetSourceMetaPayload?> {
+    fun setSourceMeta(input: SetSourceMetaInput): SetSourceMetaPayload? {
         val (clientMutationId, meta) = input
 
-        return asDataFetcherResult {
+        Source.modifyMeta(meta.sourceId, meta.key, meta.value)
-            Source.modifyMeta(meta.sourceId, meta.key, meta.value)
 
-            SetSourceMetaPayload(clientMutationId, meta)
+        return SetSourceMetaPayload(clientMutationId, meta)
-        }
     }
 
     data class DeleteSourceMetaInput(
@@ -70,38 +68,36 @@ class SourceMutation {
     )
 
     @RequireAuth
-    fun deleteSourceMeta(input: DeleteSourceMetaInput): DataFetcherResult<DeleteSourceMetaPayload?> {
+    fun deleteSourceMeta(input: DeleteSourceMetaInput): DeleteSourceMetaPayload? {
         val (clientMutationId, sourceId, key) = input
 
-        return asDataFetcherResult {
+        val (meta, source) =
-            val (meta, source) =
+            transaction {
-                transaction {
+                val meta =
-                    val meta =
+                    SourceMetaTable
-                        SourceMetaTable
+                        .selectAll()
+                        .where { (SourceMetaTable.ref eq sourceId) and (SourceMetaTable.key eq key) }
+                        .firstOrNull()
+
+                SourceMetaTable.deleteWhere { (SourceMetaTable.ref eq sourceId) and (SourceMetaTable.key eq key) }
+
+                val source =
+                    transaction {
+                        SourceTable
                             .selectAll()
-                            .where { (SourceMetaTable.ref eq sourceId) and (SourceMetaTable.key eq key) }
+                            .where { SourceTable.id eq sourceId }
                             .firstOrNull()
+                            ?.let { SourceType(it) }
+                    }
 
-                    SourceMetaTable.deleteWhere { (SourceMetaTable.ref eq sourceId) and (SourceMetaTable.key eq key) }
+                if (meta != null) {
+                    SourceMetaType(meta)
+                } else {
+                    null
+                } to source
+            }
 
-                    val source =
+        return DeleteSourceMetaPayload(clientMutationId, meta, source)
-                        transaction {
-                            SourceTable
-                                .selectAll()
-                                .where { SourceTable.id eq sourceId }
-                                .firstOrNull()
-                                ?.let { SourceType(it) }
-                        }
-
-                    if (meta != null) {
-                        SourceMetaType(meta)
-                    } else {
-                        null
-                    } to source
-                }
-
-            DeleteSourceMetaPayload(clientMutationId, meta, source)
-        }
     }
 
     data class SetSourceMetasItem(
@@ -121,43 +117,41 @@ class SourceMutation {
     )
 
     @RequireAuth
-    fun setSourceMetas(input: SetSourceMetasInput): DataFetcherResult<SetSourceMetasPayload?> {
+    fun setSourceMetas(input: SetSourceMetasInput): SetSourceMetasPayload? {
         val (clientMutationId, items) = input
 
-        return asDataFetcherResult {
+        val metaBySourceId =
-            val metaBySourceId =
+            items
-                items
+                .flatMap { item ->
-                    .flatMap { item ->
+                    val metaMap = item.metas.associate { it.key to it.value }
-                        val metaMap = item.metas.associate { it.key to it.value }
+                    item.sourceIds.map { sourceId -> sourceId to metaMap }
-                        item.sourceIds.map { sourceId -> sourceId to metaMap }
+                }.groupBy({ it.first }, { it.second })
-                    }.groupBy({ it.first }, { it.second })
+                .mapValues { (_, maps) -> maps.reduce { acc, map -> acc + map } }
-                    .mapValues { (_, maps) -> maps.reduce { acc, map -> acc + map } }
 
-            Source.modifySourceMetas(metaBySourceId)
+        Source.modifySourceMetas(metaBySourceId)
 
-            val allSourceIds = metaBySourceId.keys
+        val allSourceIds = metaBySourceId.keys
-            val allMetaKeys = metaBySourceId.values.flatMap { it.keys }.distinct()
+        val allMetaKeys = metaBySourceId.values.flatMap { it.keys }.distinct()
 
-            val (updatedMetas, sources) =
+        val (updatedMetas, sources) =
-                transaction {
+            transaction {
-                    val updatedMetas =
+                val updatedMetas =
-                        SourceMetaTable
+                    SourceMetaTable
-                            .selectAll()
+                        .selectAll()
-                            .where { (SourceMetaTable.ref inList allSourceIds) and (SourceMetaTable.key inList allMetaKeys) }
+                        .where { (SourceMetaTable.ref inList allSourceIds) and (SourceMetaTable.key inList allMetaKeys) }
-                            .map { SourceMetaType(it) }
+                        .map { SourceMetaType(it) }
 
-                    val sources =
+                val sources =
-                        SourceTable
+                    SourceTable
-                            .selectAll()
+                        .selectAll()
-                            .where { SourceTable.id inList allSourceIds }
+                        .where { SourceTable.id inList allSourceIds }
-                            .mapNotNull { SourceType(it) }
+                        .mapNotNull { SourceType(it) }
-                            .distinctBy { it.id }
+                        .distinctBy { it.id }
 
-                    updatedMetas to sources
+                updatedMetas to sources
-                }
+            }
 
-            SetSourceMetasPayload(clientMutationId, updatedMetas, sources)
+        return SetSourceMetasPayload(clientMutationId, updatedMetas, sources)
-        }
     }
 
     data class DeleteSourceMetasItem(
@@ -178,64 +172,62 @@ class SourceMutation {
     )
 
     @RequireAuth
-    fun deleteSourceMetas(input: DeleteSourceMetasInput): DataFetcherResult<DeleteSourceMetasPayload?> {
+    fun deleteSourceMetas(input: DeleteSourceMetasInput): DeleteSourceMetasPayload? {
         val (clientMutationId, items) = input
 
-        return asDataFetcherResult {
+        items.forEach { item ->
-            items.forEach { item ->
+            require(!item.keys.isNullOrEmpty() || !item.prefixes.isNullOrEmpty()) {
-                require(!item.keys.isNullOrEmpty() || !item.prefixes.isNullOrEmpty()) {
+                "Either 'keys' or 'prefixes' must be provided for each item"
-                    "Either 'keys' or 'prefixes' must be provided for each item"
+            }
+        }
+
+        val (allDeletedMetas, allSourceIds) =
+            transaction {
+                val deletedMetas = mutableListOf<SourceMetaType>()
+                val sourceIds = mutableSetOf<Long>()
+
+                items.forEach { item ->
+                    val keyCondition: Op<Boolean>? =
+                        item.keys?.takeIf { it.isNotEmpty() }?.let { SourceMetaTable.key inList it }
+
+                    val prefixCondition: Op<Boolean>? =
+                        item.prefixes
+                            ?.filter { it.isNotEmpty() }
+                            ?.map { (SourceMetaTable.key like LikePattern("$it%")) as Op<Boolean> }
+                            ?.reduceOrNull { acc, op -> acc or op }
+
+                    val metaKeyCondition =
+                        if (keyCondition != null && prefixCondition != null) {
+                            keyCondition or prefixCondition
+                        } else {
+                            keyCondition ?: prefixCondition!!
+                        }
+
+                    val condition = (SourceMetaTable.ref inList item.sourceIds) and metaKeyCondition
+
+                    deletedMetas +=
+                        SourceMetaTable
+                            .selectAll()
+                            .where { condition }
+                            .map { SourceMetaType(it) }
+
+                    SourceMetaTable.deleteWhere { condition }
+                    sourceIds += item.sourceIds
                 }
+
+                deletedMetas to sourceIds
             }
 
-            val (allDeletedMetas, allSourceIds) =
+        val sources =
-                transaction {
+            transaction {
-                    val deletedMetas = mutableListOf<SourceMetaType>()
+                SourceTable
-                    val sourceIds = mutableSetOf<Long>()
+                    .selectAll()
+                    .where { SourceTable.id inList allSourceIds }
+                    .mapNotNull { SourceType(it) }
+                    .distinctBy { it.id }
+            }
 
-                    items.forEach { item ->
+        return DeleteSourceMetasPayload(clientMutationId, allDeletedMetas, sources)
-                        val keyCondition: Op<Boolean>? =
-                            item.keys?.takeIf { it.isNotEmpty() }?.let { SourceMetaTable.key inList it }
-
-                        val prefixCondition: Op<Boolean>? =
-                            item.prefixes
-                                ?.filter { it.isNotEmpty() }
-                                ?.map { (SourceMetaTable.key like LikePattern("$it%")) as Op<Boolean> }
-                                ?.reduceOrNull { acc, op -> acc or op }
-
-                        val metaKeyCondition =
-                            if (keyCondition != null && prefixCondition != null) {
-                                keyCondition or prefixCondition
-                            } else {
-                                keyCondition ?: prefixCondition!!
-                            }
-
-                        val condition = (SourceMetaTable.ref inList item.sourceIds) and metaKeyCondition
-
-                        deletedMetas +=
-                            SourceMetaTable
-                                .selectAll()
-                                .where { condition }
-                                .map { SourceMetaType(it) }
-
-                        SourceMetaTable.deleteWhere { condition }
-                        sourceIds += item.sourceIds
-                    }
-
-                    deletedMetas to sourceIds
-                }
-
-            val sources =
-                transaction {
-                    SourceTable
-                        .selectAll()
-                        .where { SourceTable.id inList allSourceIds }
-                        .mapNotNull { SourceType(it) }
-                        .distinctBy { it.id }
-                }
-
-            DeleteSourceMetasPayload(clientMutationId, allDeletedMetas, sources)
-        }
     }
 
     enum class FetchSourceMangaType {
@@ -260,50 +252,48 @@ class SourceMutation {
     )
 
     @RequireAuth
-    fun fetchSourceManga(input: FetchSourceMangaInput): CompletableFuture<DataFetcherResult<FetchSourceMangaPayload?>> {
+    fun fetchSourceManga(input: FetchSourceMangaInput): CompletableFuture<FetchSourceMangaPayload?> {
         val (clientMutationId, sourceId, type, page, query, filters) = input
 
         return future {
-            asDataFetcherResult {
+            val source = GetCatalogueSource.getCatalogueSourceOrNull(sourceId)!!
-                val source = GetCatalogueSource.getCatalogueSourceOrNull(sourceId)!!
+            val mangasPage =
-                val mangasPage =
+                when (type) {
-                    when (type) {
+                    FetchSourceMangaType.SEARCH -> {
-                        FetchSourceMangaType.SEARCH -> {
+                        source.getSearchManga(
-                            source.getSearchManga(
+                            page = page,
-                                page = page,
+                            query = query.orEmpty(),
-                                query = query.orEmpty(),
+                            filters = updateFilterList(source, filters),
-                                filters = updateFilterList(source, filters),
+                        )
-                            )
-                        }
-
-                        FetchSourceMangaType.POPULAR -> {
-                            source.getPopularManga(page)
-                        }
-
-                        FetchSourceMangaType.LATEST -> {
-                            if (!source.supportsLatest) throw Exception("Source does not support latest")
-                            source.getLatestUpdates(page)
-                        }
                     }
 
-                val mangaIds = mangasPage.insertOrUpdate(sourceId)
+                    FetchSourceMangaType.POPULAR -> {
-
+                        source.getPopularManga(page)
-                val mangas =
-                    transaction {
-                        MangaTable
-                            .selectAll()
-                            .where { MangaTable.id inList mangaIds }
-                            .map { MangaType(it) }
-                    }.sortedBy {
-                        mangaIds.indexOf(it.id)
                     }
 
-                FetchSourceMangaPayload(
+                    FetchSourceMangaType.LATEST -> {
-                    clientMutationId = clientMutationId,
+                        if (!source.supportsLatest) throw Exception("Source does not support latest")
-                    mangas = mangas,
+                        source.getLatestUpdates(page)
-                    hasNextPage = mangasPage.hasNextPage,
+                    }
-                )
+                }
-            }
+
+            val mangaIds = mangasPage.insertOrUpdate(sourceId)
+
+            val mangas =
+                transaction {
+                    MangaTable
+                        .selectAll()
+                        .where { MangaTable.id inList mangaIds }
+                        .map { MangaType(it) }
+                }.sortedBy {
+                    mangaIds.indexOf(it.id)
+                }
+
+            FetchSourceMangaPayload(
+                clientMutationId = clientMutationId,
+                mangas = mangas,
+                hasNextPage = mangasPage.hasNextPage,
+            )
         }
     }
 
@@ -329,29 +319,27 @@ class SourceMutation {
     )
 
     @RequireAuth
-    fun updateSourcePreference(input: UpdateSourcePreferenceInput): DataFetcherResult<UpdateSourcePreferencePayload?> {
+    fun updateSourcePreference(input: UpdateSourcePreferenceInput): UpdateSourcePreferencePayload? {
         val (clientMutationId, sourceId, change) = input
 
-        return asDataFetcherResult {
+        Source.setSourcePreference(sourceId, change.position, "") { preference ->
-            Source.setSourcePreference(sourceId, change.position, "") { preference ->
+            when (preference) {
-                when (preference) {
+                is SwitchPreferenceCompat -> change.switchState
-                    is SwitchPreferenceCompat -> change.switchState
+                is CheckBoxPreference -> change.checkBoxState
-                    is CheckBoxPreference -> change.checkBoxState
+                is EditTextPreference -> change.editTextState
-                    is EditTextPreference -> change.editTextState
+                is ListPreference -> change.listState
-                    is ListPreference -> change.listState
+                is MultiSelectListPreference -> change.multiSelectState?.toSet()
-                    is MultiSelectListPreference -> change.multiSelectState?.toSet()
+                else -> throw RuntimeException("sealed class cannot have more subtypes!")
-                    else -> throw RuntimeException("sealed class cannot have more subtypes!")
+            } ?: throw Exception("Expected change to ${preference::class.simpleName}")
-                } ?: throw Exception("Expected change to ${preference::class.simpleName}")
-            }
-
-            UpdateSourcePreferencePayload(
-                clientMutationId = clientMutationId,
-                preferences = Source.getSourcePreferencesRaw(sourceId).map { preferenceOf(it) },
-                source =
-                    transaction {
-                        SourceType(SourceTable.selectAll().where { SourceTable.id eq sourceId }.first())!!
-                    },
-            )
         }
+
+        return UpdateSourcePreferencePayload(
+            clientMutationId = clientMutationId,
+            preferences = Source.getSourcePreferencesRaw(sourceId).map { preferenceOf(it) },
+            source =
+                transaction {
+                    SourceType(SourceTable.selectAll().where { SourceTable.id eq sourceId }.first())!!
+                },
+        )
     }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/TrackMutation.kt

@@ -1,3 +1,5 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import com.expediagroup.graphql.generator.annotations.GraphQLDeprecated
@@ -6,7 +8,6 @@ import graphql.execution.DataFetcherResult
 import org.jetbrains.exposed.sql.and
 import org.jetbrains.exposed.sql.selectAll
 import org.jetbrains.exposed.sql.transactions.transaction
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.TrackRecordType
 import suwayomi.tachidesk.graphql.types.TrackerType
@@ -222,24 +223,22 @@ class TrackMutation {
     )
 
     @RequireAuth
-    fun trackProgress(input: TrackProgressInput): CompletableFuture<DataFetcherResult<TrackProgressPayload?>> {
+    fun trackProgress(input: TrackProgressInput): CompletableFuture<TrackProgressPayload?> {
         val (clientMutationId, mangaId) = input
 
         return future {
-            asDataFetcherResult {
+            Track.trackChapter(mangaId)
-                Track.trackChapter(mangaId)
+            val trackRecords =
-                val trackRecords =
+                transaction {
-                    transaction {
+                    TrackRecordTable
-                        TrackRecordTable
+                        .selectAll()
-                            .selectAll()
+                        .where { TrackRecordTable.mangaId eq mangaId }
-                            .where { TrackRecordTable.mangaId eq mangaId }
+                        .toList()
-                            .toList()
+                }
-                    }
+            TrackProgressPayload(
-                TrackProgressPayload(
+                clientMutationId,
-                    clientMutationId,
+                trackRecords.map { TrackRecordType(it) },
-                    trackRecords.map { TrackRecordType(it) },
+            )
-                )
-            }
         }
     }
 

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/UpdateMutation.kt

@@ -1,9 +1,10 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import graphql.execution.DataFetcherResult
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.withTimeout
-import suwayomi.tachidesk.graphql.asDataFetcherResult
 import suwayomi.tachidesk.graphql.directives.RequireAuth
 import suwayomi.tachidesk.graphql.types.LibraryUpdateStatus
 import suwayomi.tachidesk.graphql.types.UpdateStatus
@@ -28,7 +29,7 @@ class UpdateMutation {
     )
 
     @RequireAuth
-    fun updateLibrary(input: UpdateLibraryInput): CompletableFuture<DataFetcherResult<UpdateLibraryPayload?>> {
+    fun updateLibrary(input: UpdateLibraryInput): CompletableFuture<UpdateLibraryPayload?> {
         updater.addCategoriesToUpdateQueue(
             Category.getCategoryList().filter { input.categories?.contains(it.id) ?: true },
             clear = true,
@@ -36,17 +37,15 @@ class UpdateMutation {
         )
 
         return future {
-            asDataFetcherResult {
+            UpdateLibraryPayload(
-                UpdateLibraryPayload(
+                input.clientMutationId,
-                    input.clientMutationId,
+                updateStatus =
-                    updateStatus =
+                    withTimeout(30.seconds) {
-                        withTimeout(30.seconds) {
+                        LibraryUpdateStatus(
-                            LibraryUpdateStatus(
+                            updater.updates.first(),
-                                updater.updates.first(),
+                        )
-                            )
+                    },
-                        },
+            )
-                )
-            }
         }
     }
 
@@ -60,7 +59,7 @@ class UpdateMutation {
     )
 
     @RequireAuth
-    fun updateLibraryManga(input: UpdateLibraryMangaInput): CompletableFuture<DataFetcherResult<UpdateLibraryMangaPayload?>> {
+    fun updateLibraryManga(input: UpdateLibraryMangaInput): CompletableFuture<UpdateLibraryMangaPayload?> {
         updateLibrary(
             UpdateLibraryInput(
                 clientMutationId = input.clientMutationId,
@@ -69,15 +68,13 @@ class UpdateMutation {
         )
 
         return future {
-            asDataFetcherResult {
+            UpdateLibraryMangaPayload(
-                UpdateLibraryMangaPayload(
+                input.clientMutationId,
-                    input.clientMutationId,
+                updateStatus =
-                    updateStatus =
+                    withTimeout(30.seconds) {
-                        withTimeout(30.seconds) {
+                        UpdateStatus(updater.status.first())
-                            UpdateStatus(updater.status.first())
+                    },
-                        },
+            )
-                )
-            }
         }
     }
 
@@ -92,7 +89,7 @@ class UpdateMutation {
     )
 
     @RequireAuth
-    fun updateCategoryManga(input: UpdateCategoryMangaInput): CompletableFuture<DataFetcherResult<UpdateCategoryMangaPayload?>> {
+    fun updateCategoryManga(input: UpdateCategoryMangaInput): CompletableFuture<UpdateCategoryMangaPayload?> {
         updateLibrary(
             UpdateLibraryInput(
                 clientMutationId = input.clientMutationId,
@@ -101,15 +98,13 @@ class UpdateMutation {
         )
 
         return future {
-            asDataFetcherResult {
+            UpdateCategoryMangaPayload(
-                UpdateCategoryMangaPayload(
+                input.clientMutationId,
-                    input.clientMutationId,
+                updateStatus =
-                    updateStatus =
+                    withTimeout(30.seconds) {
-                        withTimeout(30.seconds) {
+                        UpdateStatus(updater.status.first())
-                            UpdateStatus(updater.status.first())
+                    },
-                        },
+            )
-                )
-            }
         }
     }
 

server/src/main/kotlin/suwayomi/tachidesk/graphql/mutations/UserMutation.kt

@@ -1,3 +1,5 @@
+@file:Suppress("RedundantNullableReturnType", "unused")
+
 package suwayomi.tachidesk.graphql.mutations
 
 import graphql.schema.DataFetchingEnvironment

server/src/main/kotlin/suwayomi/tachidesk/graphql/server/JavalinGraphQLRequestParser.kt

@@ -11,15 +11,21 @@ import com.expediagroup.graphql.server.execution.GraphQLRequestParser
 import com.expediagroup.graphql.server.types.GraphQLBatchRequest
 import com.expediagroup.graphql.server.types.GraphQLRequest
 import com.expediagroup.graphql.server.types.GraphQLServerRequest
+import io.github.oshai.kotlinlogging.KotlinLogging
 import io.javalin.http.Context
 import io.javalin.http.UploadedFile
+import io.javalin.json.JavalinJackson
+import io.javalin.json.fromJsonStream
 import io.javalin.json.fromJsonString
 import java.io.IOException
 
 class JavalinGraphQLRequestParser : GraphQLRequestParser<Context> {
+    private val logger = KotlinLogging.logger {}
+
     @Suppress("PARAMETER_NAME_CHANGED_ON_OVERRIDE")
     override suspend fun parseRequest(context: Context): GraphQLServerRequest? {
         return try {
+            val jsonMapper = context.jsonMapper()
             val contentType = context.contentType()
             val formParam =
                 if (
@@ -29,17 +35,17 @@ class JavalinGraphQLRequestParser : GraphQLRequestParser<Context> {
                     context.formParam("operations")
                         ?: throw IllegalArgumentException("Cannot find 'operations' body")
                 } else {
-                    return context.bodyAsClass(GraphQLServerRequest::class.java)
+                    return context.bodyInputStream().use { jsonMapper.fromJsonStream<GraphQLServerRequest>(it) }
                 }
 
             val request =
-                context.jsonMapper().fromJsonString<GraphQLServerRequest>(formParam)
+                jsonMapper.fromJsonString<GraphQLServerRequest>(formParam)
 
             val map =
                 context
                     .formParam("map")
                     ?.let {
-                        context.jsonMapper().fromJsonString<Map<String, List<String>>>(it)
+                        jsonMapper.fromJsonString<Map<String, List<String>>>(it)
                     }.orEmpty()
 
             val mapItems =
@@ -73,7 +79,8 @@ class JavalinGraphQLRequestParser : GraphQLRequestParser<Context> {
                     )
                 }
             }
-        } catch (_: IOException) {
+        } catch (e: IOException) {
+            logger.error(e) { "Error when parsing request" }
             null
         }
     }

server/src/main/kotlin/suwayomi/tachidesk/graphql/server/TachideskGraphQLServer.kt

@@ -10,7 +10,6 @@ package suwayomi.tachidesk.graphql.server
 import com.expediagroup.graphql.generator.execution.FlowSubscriptionExecutionStrategy
 import com.expediagroup.graphql.server.execution.GraphQLRequestHandler
 import com.expediagroup.graphql.server.execution.GraphQLServer
-import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
 import graphql.ExceptionWhileDataFetching
 import graphql.GraphQL
 import graphql.execution.AsyncExecutionStrategy
@@ -27,6 +26,7 @@ import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.map
 import suwayomi.tachidesk.graphql.server.subscriptions.ApolloSubscriptionProtocolHandler
 import suwayomi.tachidesk.server.JavalinSetup.future
+import tools.jackson.module.kotlin.jacksonObjectMapper
 
 class TachideskGraphQLServer(
     requestParser: JavalinGraphQLRequestParser,

server/src/main/kotlin/suwayomi/tachidesk/graphql/server/primitives/Cursor.kt

@@ -58,7 +58,7 @@ private class GraphqlCursorCoercing : Coercing<Cursor, String> {
                 ),
             )
         }
-        return Cursor(input.value)
+        return Cursor(input.value!!)
     }
 
     private fun valueToLiteralImpl(input: Any): StringValue = StringValue.newStringValue(input.toString()).build()

server/src/main/kotlin/suwayomi/tachidesk/graphql/server/primitives/DurationAsString.kt

@@ -71,7 +71,7 @@ private class GraphqlDurationAsStringCoercing : Coercing<Duration, String> {
             )
         }
         return try {
-            Duration.parse(input.value)
+            Duration.parse(input.value!!)
         } catch (e: IllegalArgumentException) {
             throw CoercingParseLiteralException(
                 "Invalid duration format: ${input.value}. Expected ISO-8601 duration string (e.g., 'PT30M', 'P1D')",

server/src/main/kotlin/suwayomi/tachidesk/graphql/server/primitives/LongAsString.kt

@@ -53,7 +53,7 @@ private class GraphqlLongAsStringCoercing : Coercing<Long, String> {
                 ),
             )
         }
-        return input.value.toLong()
+        return input.value!!.toLong()
     }
 
     private fun valueToLiteralImpl(input: Any): StringValue = StringValue.newStringValue(input.toString()).build()

server/src/main/kotlin/suwayomi/tachidesk/graphql/server/subscriptions/ApolloSubscriptionProtocolHandler.kt

@@ -9,9 +9,6 @@ package suwayomi.tachidesk.graphql.server.subscriptions
 
 import com.expediagroup.graphql.server.execution.GraphQLRequestHandler
 import com.expediagroup.graphql.server.types.GraphQLRequest
-import com.fasterxml.jackson.databind.ObjectMapper
-import com.fasterxml.jackson.module.kotlin.convertValue
-import com.fasterxml.jackson.module.kotlin.readValue
 import io.github.oshai.kotlinlogging.KotlinLogging
 import io.javalin.http.Header
 import io.javalin.websocket.WsContext
@@ -26,7 +23,7 @@ import kotlinx.coroutines.flow.onCompletion
 import kotlinx.coroutines.flow.onStart
 import kotlinx.coroutines.job
 import kotlinx.coroutines.runBlocking
-import org.eclipse.jetty.websocket.api.CloseStatus
+import org.eclipse.jetty.websocket.core.CloseStatus
 import suwayomi.tachidesk.graphql.server.TachideskGraphQLContextFactory
 import suwayomi.tachidesk.graphql.server.subscriptions.SubscriptionOperationMessage.ClientMessages.GQL_CONNECTION_INIT
 import suwayomi.tachidesk.graphql.server.subscriptions.SubscriptionOperationMessage.ClientMessages.GQL_SUBSCRIBE
@@ -41,6 +38,9 @@ import suwayomi.tachidesk.server.JavalinSetup.Attribute
 import suwayomi.tachidesk.server.JavalinSetup.getAttributeOrSet
 import suwayomi.tachidesk.server.user.UserType
 import suwayomi.tachidesk.server.user.getUserFromToken
+import tools.jackson.databind.ObjectMapper
+import tools.jackson.module.kotlin.convertValue
+import tools.jackson.module.kotlin.readValue
 
 /**
  * Implementation of the `graphql-transport-ws` protocol defined by Denis Badurina

server/src/main/kotlin/suwayomi/tachidesk/graphql/server/subscriptions/ApolloSubscriptionSessionState.kt

@@ -13,7 +13,7 @@ import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.emptyFlow
 import kotlinx.coroutines.flow.onCompletion
-import org.eclipse.jetty.websocket.api.CloseStatus
+import org.eclipse.jetty.websocket.core.CloseStatus
 import suwayomi.tachidesk.graphql.server.toGraphQLContext
 import java.util.concurrent.ConcurrentHashMap
 import java.util.concurrent.CopyOnWriteArrayList

server/src/main/kotlin/suwayomi/tachidesk/server/JavalinSetup.kt

@@ -13,12 +13,14 @@ import io.github.oshai.kotlinlogging.KotlinLogging
 import io.javalin.Javalin
 import io.javalin.apibuilder.ApiBuilder.after
 import io.javalin.apibuilder.ApiBuilder.path
+import io.javalin.config.RoutesConfig
 import io.javalin.http.Context
 import io.javalin.http.HandlerType
 import io.javalin.http.HttpStatus
 import io.javalin.http.NotFoundResponse
 import io.javalin.http.RedirectResponse
 import io.javalin.http.UnauthorizedResponse
+import io.javalin.json.JavalinJackson3
 import io.javalin.rendering.template.JavalinJte
 import io.javalin.websocket.WsContext
 import kotlinx.coroutines.CoroutineScope
@@ -47,6 +49,7 @@ import java.net.URLEncoder
 import java.util.Locale
 import java.util.concurrent.CompletableFuture
 import kotlin.concurrent.thread
+import kotlin.text.get
 import kotlin.time.Duration.Companion.days
 
 object JavalinSetup {
@@ -58,10 +61,12 @@ object JavalinSetup {
 
     fun javalinSetup() {
         val app =
-            Javalin.create { config ->
+            Javalin.start { config ->
                 val templateEngine = TemplateEngine.createPrecompiled(ContentType.Html)
                 config.fileRenderer(JavalinJte(templateEngine))
 
+                config.jsonMapper(JavalinJackson3())
+
                 WebInterfaceManager.setup(config)
 
                 // config.registerPlugin(OpenApiPlugin(getOpenApiOptions()))
@@ -104,7 +109,8 @@ object JavalinSetup {
                     }
                 }
 
-                config.router.apiBuilder {
+                config.routes.defineCore()
+                config.routes.apiBuilder {
                     path(ServerSubpath.maybeAddAsPrefix("api/")) {
                         path("v1/") {
                             GlobalAPI.defineEndpoints()
@@ -117,17 +123,32 @@ object JavalinSetup {
                         after { ctx ->
                             // If not matched, the request was for an invalid endpoint
                             // Return a 404 instead of redirecting to the UI for usability
-                            if (ctx.endpointHandlerPath() == "*") {
+                            if (ctx.endpoints().lastHttpEndpoint()?.path == "*") {
                                 throw NotFoundResponse()
                             }
                         }
                     }
                 }
+
+                config.events.serverStarted {
+                    if (serverConfig.initialOpenInBrowserEnabled.value) {
+                        Browser.openInBrowser()
+                    }
+                }
             }
 
+        // when JVM is prompted to shutdown, stop javalin gracefully
+        Runtime.getRuntime().addShutdownHook(
+            thread(start = false) {
+                app.stop()
+            },
+        )
+    }
+
+    fun RoutesConfig.defineCore() {
         val loginPath = ServerSubpath.maybeAddAsPrefix("/login.html")
 
-        app.get(loginPath) { ctx ->
+        get(loginPath) { ctx ->
             val locale: Locale = LocalizationHelper.ctxToLocale(ctx)
             ctx.header("content-type", "text/html")
             val httpCacheSeconds = 1.days.inWholeSeconds
@@ -141,7 +162,7 @@ object JavalinSetup {
             )
         }
 
-        app.post(loginPath) { ctx ->
+        post(loginPath) { ctx ->
             val username = ctx.formParam("user")
             val password = ctx.formParam("pass")
             val isValid =
@@ -174,7 +195,7 @@ object JavalinSetup {
             )
         }
 
-        app.beforeMatched { ctx ->
+        beforeMatched { ctx ->
             val isWebManifest =
                 listOf("site.webmanifest", "manifest.json", "login.html").any { ctx.path().endsWith(it) }
             val isPageIcon =
@@ -219,60 +240,43 @@ object JavalinSetup {
             ctx.setAttribute(Attribute.TachideskBasic, credentialsValid())
         }
 
-        app.events { event ->
+        wsBefore {
-            event.serverStarted {
-                if (serverConfig.initialOpenInBrowserEnabled.value) {
-                    Browser.openInBrowser()
-                }
-            }
-        }
-
-        app.wsBefore {
             it.onConnect { ctx ->
                 ctx.setAttribute(Attribute.TachideskUser, getUserFromWsContext(ctx))
             }
         }
 
-        // when JVM is prompted to shutdown, stop javalin gracefully
+        exception(NullPointerException::class.java) { e, ctx ->
-        Runtime.getRuntime().addShutdownHook(
-            thread(start = false) {
-                app.stop()
-            },
-        )
-
-        app.exception(NullPointerException::class.java) { e, ctx ->
             logger.error(e) { "NullPointerException while handling the request" }
             ctx.status(404)
         }
-        app.exception(NoSuchElementException::class.java) { e, ctx ->
+        exception(NoSuchElementException::class.java) { e, ctx ->
             logger.error(e) { "NoSuchElementException while handling the request" }
             ctx.status(404)
         }
-        app.exception(IOException::class.java) { e, ctx ->
+        exception(IOException::class.java) { e, ctx ->
             logger.error(e) { "IOException while handling the request" }
             ctx.status(500)
             ctx.result(e.message ?: "Internal Server Error")
         }
 
-        app.exception(IllegalArgumentException::class.java) { e, ctx ->
+        exception(IllegalArgumentException::class.java) { e, ctx ->
             logger.error(e) { "IllegalArgumentException while handling the request" }
             ctx.status(400)
             ctx.result(e.message ?: "Bad Request")
         }
 
-        app.exception(UnauthorizedException::class.java) { e, ctx ->
+        exception(UnauthorizedException::class.java) { e, ctx ->
             logger.error(e) { "UnauthorizedException while handling the request" }
             ctx.status(HttpStatus.UNAUTHORIZED)
             ctx.result(e.message ?: "Unauthorized")
         }
 
-        app.exception(ForbiddenException::class.java) { e, ctx ->
+        exception(ForbiddenException::class.java) { e, ctx ->
             logger.error(e) { "ForbiddenException while handling the request" }
             ctx.status(HttpStatus.FORBIDDEN)
             ctx.result(e.message ?: "Forbidden")
         }
-
-        app.start()
     }
 
     // private fun getOpenApiOptions(): OpenApiOptions {

server/src/main/kotlin/suwayomi/tachidesk/server/util/DocumentationDsl.kt

@@ -71,15 +71,14 @@ fun <T> getParam(
                     is Param.FormParam -> ctx.formParamAsClass(param.key, clazz)
                     is Param.PathParam -> ctx.pathParamAsClass(param.key, clazz)
                     is Param.QueryParam -> ctx.queryParamAsClass(param.key, clazz)
-                    else -> throw IllegalStateException("Invalid param")
                 }.let {
                     if (param.nullable) {
-                        it.allowNullable().get() ?: param.defaultValue
+                        it.getOrNull() ?: param.defaultValue
                     } else {
                         if (param.defaultValue != null) {
                             it.getOrDefault(param.defaultValue!!)
                         } else {
-                            it.get()
+                            it.required().get()
                         }
                     }
                 }

server/src/main/kotlin/suwayomi/tachidesk/server/util/WebInterfaceManager.kt

@@ -17,6 +17,7 @@ import io.github.oshai.kotlinlogging.KLogger
 import io.github.oshai.kotlinlogging.KotlinLogging
 import io.github.reactivecircus.cache4k.Cache
 import io.javalin.config.JavalinConfig
+import io.javalin.http.staticfiles.AliasCheck
 import io.javalin.http.staticfiles.Location
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.DelicateCoroutinesApi
@@ -39,7 +40,6 @@ import kotlinx.serialization.json.jsonArray
 import kotlinx.serialization.json.jsonObject
 import kotlinx.serialization.json.jsonPrimitive
 import net.lingala.zip4j.ZipFile
-import org.eclipse.jetty.server.handler.ContextHandler
 import suwayomi.tachidesk.graphql.types.AboutWebUI
 import suwayomi.tachidesk.graphql.types.UpdateState
 import suwayomi.tachidesk.graphql.types.UpdateState.DOWNLOADING
@@ -180,7 +180,7 @@ object WebInterfaceManager {
             // Use canonical path to avoid Jetty alias issues
             staticFiles.directory = File(applicationDirs.webUIServe).canonicalPath
             staticFiles.location = Location.EXTERNAL
-            staticFiles.aliasCheck = ContextHandler.ApproveAliases()
+            staticFiles.aliasCheck = AliasCheck { _, _ -> true }
         }
 
         serveWebUI = {
@@ -304,11 +304,25 @@ object WebInterfaceManager {
             return
         }
 
-        val flavor = WebUIFlavor.current
         val servedFlavor = getServedWebUIFlavor()
 
         val log =
-            KotlinLogging.logger("${logger.name} setupWebUI(flavor= ${flavor.uiName}, servedFlavor= ${servedFlavor.uiName})")
+            KotlinLogging.logger(
+                "${logger.name} setupWebUI(flavor= ${WebUIFlavor.current.uiName}, servedFlavor= ${servedFlavor.uiName}, channel= ${serverConfig.webUIChannel})",
+            )
+
+        val flavor =
+            if (serverConfig.webUIChannel.value == WebUIChannel.BUNDLED) {
+                if (serverConfig.webUIFlavor.value != WebUIFlavor.default) {
+                    log.warn {
+                        "Changed flavor to ${WebUIFlavor.default.uiName}. Channel \"${WebUIChannel.BUNDLED}\" only works with the default flavor"
+                    }
+                }
+
+                WebUIFlavor.default
+            } else {
+                WebUIFlavor.current
+            }
 
         if (doesLocalWebUIExist(applicationDirs.webUIRoot)) {
             val currentVersion = getLocalVersion()