ability to override server.conf with java -D arguments

AndroidCompat/Config/src/main/java/xyz/nulldev/ts/config/ConfigModule.kt

@@ -1,8 +1,40 @@
 package xyz.nulldev.ts.config
 
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
 import com.typesafe.config.Config
+import io.github.config4k.getValue
+import kotlin.reflect.KProperty
 
 /**
  * Abstract config module.
  */
-abstract class ConfigModule(config: Config)
+abstract class ConfigModule(config: Config, moduleName: String = "") {
+    val overridableWithSysProperty = SystemPropertyOverrideDelegate(config, moduleName)
+}
+
+class SystemPropertyOverrideDelegate(val config: Config, val moduleName: String) {
+    inline operator fun <R, reified T> getValue(thisRef: R, property: KProperty<*>): T {
+        val configValue: T = config.getValue(thisRef, property)
+
+        println("getting " + "suwayomi.tachidesk.config.$moduleName.${property.name}")
+        val combined = System.getProperty(
+            "suwayomi.tachidesk.config.$moduleName.${property.name}",
+            configValue.toString()
+        )
+
+        val asT = when(T::class.simpleName) {
+            "Int" -> combined.toInt()
+            "Boolean" -> combined.toBoolean()
+            // add more types as needed
+            else -> combined
+        }
+
+        return asT as T
+    }
+}

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

@@ -8,30 +8,31 @@ package suwayomi.tachidesk.server
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 import com.typesafe.config.Config
-import io.github.config4k.getValue
 import xyz.nulldev.ts.config.ConfigModule
 import xyz.nulldev.ts.config.GlobalConfigManager
 import xyz.nulldev.ts.config.debugLogsEnabled
 
-class ServerConfig(config: Config) : ConfigModule(config) {
-    val ip: String by config
-    val port: Int by config
-
-    val webUIEnabled: Boolean = System.getProperty(
-        "suwayomi.tachidesk.server.webUIEnabled", config.getString("webUIEnabled")
-    ).toBoolean()
+class ServerConfig(config: Config, moduleName: String = "") : ConfigModule(config, moduleName) {
+    val ip: String by overridableWithSysProperty
+    val port: Int by overridableWithSysProperty
 
     // proxy
-    val socksProxyEnabled: Boolean by config
-    val socksProxyHost: String by config
-    val socksProxyPort: String by config
+    val socksProxyEnabled: Boolean by overridableWithSysProperty
+
+    val socksProxyHost: String by overridableWithSysProperty
+    val socksProxyPort: String by overridableWithSysProperty
 
     // misc
     val debugLogsEnabled: Boolean = debugLogsEnabled(GlobalConfigManager.config)
-    val systemTrayEnabled: Boolean by config
-    val initialOpenInBrowserEnabled: Boolean by config
+    val systemTrayEnabled: Boolean by overridableWithSysProperty
+
+    // webUI
+    val webUIEnabled: Boolean by overridableWithSysProperty
+    val initialOpenInBrowserEnabled: Boolean by overridableWithSysProperty
+    val webUIBrowser: String by overridableWithSysProperty
+    val electronPath: String by overridableWithSysProperty
 
     companion object {
-        fun register(config: Config) = ServerConfig(config.getConfig("server"))
+        fun register(config: Config) = ServerConfig(config.getConfig("server"), "server")
     }
 }

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

@@ -17,12 +17,9 @@ object Browser {
     private val electronInstances = mutableListOf<Any>()
 
     fun openInBrowser() {
-
-        val openInElectron = System.getProperty("suwayomi.tachidesk.server.webInterface")?.equals("electron")
-
-        if (openInElectron == true) {
+        if (serverConfig.webUIBrowser == ("electron")) {
             try {
-                val electronPath = System.getProperty("suwayomi.tachidesk.server.electronPath")!!
+                val electronPath = serverConfig.electronPath
                 electronInstances.add(ProcessBuilder(electronPath, appBaseUrl).start())
             } catch (e: Throwable) { // cover both java.lang.Exception and java.lang.Error
                 e.printStackTrace()

server/src/main/resources/server-reference.conf

@@ -14,3 +14,5 @@ server.systemTrayEnabled = true
 # webUI
 server.webUIEnabled = true
 server.initialOpenInBrowserEnabled = true
+server.webUIBrowser = "browser" # "browser" or "electron"
+server.electronPath = ""