feat(comicinfo): add date fields to comic info (#1021)

* feat(comicinfo): add date fields to comic info

This will be parsed by Komga, Kavita etc ... and any other library management to also have the date of the chapter.

* refactor: improve code readability

Co-authored-by: Mitchell Syer <Syer10@users.noreply.github.com>

---------

Co-authored-by: Mitchell Syer <Syer10@users.noreply.github.com>

server/src/main/kotlin/eu/kanade/tachiyomi/source/local/metadata/ComicInfo.kt

@@ -58,6 +58,9 @@ data class ComicInfo(
     val web: Web?,
     val publishingStatus: PublishingStatusTachiyomi?,
     val categories: CategoriesTachiyomi?,
+    val day: Day?,
+    val month: Month?,
+    val year: Year?,
 ) {
     @Suppress("UNUSED")
     @XmlElement(false)
@@ -87,6 +90,24 @@ data class ComicInfo(
         @XmlValue(true) val value: String = "",
     )
 
+    @Serializable
+    @XmlSerialName("Day", "", "")
+    data class Day(
+        @XmlValue(true) val value: Int = 0,
+    )
+
+    @Serializable
+    @XmlSerialName("Month", "", "")
+    data class Month(
+        @XmlValue(true) val value: Int = 0,
+    )
+
+    @Serializable
+    @XmlSerialName("Year", "", "")
+    data class Year(
+        @XmlValue(true) val value: Int = 0,
+    )
+
     @Serializable
     @XmlSerialName("Summary", "", "")
     data class Summary(

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/GetComicInfo.kt

@@ -15,19 +15,23 @@ import suwayomi.tachidesk.manga.model.table.MangaTable
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 import java.nio.file.Path
+import java.time.Instant
+import java.time.ZoneId
 import kotlin.io.path.deleteIfExists
 import kotlin.io.path.div
 import kotlin.io.path.outputStream
 
-/**
- * Creates a ComicInfo instance based on the manga and chapter metadata.
- */
 fun getComicInfo(
     manga: ResultRow,
     chapter: ResultRow,
     chapterUrl: String,
     categories: List<String>?,
-) = ComicInfo(
+): ComicInfo {
+    val dateUpload = chapter[ChapterTable.date_upload]
+    val localDate =
+        Instant.ofEpochMilli(dateUpload).atZone(ZoneId.systemDefault()).toLocalDate()
+
+    return ComicInfo(
         title = ComicInfo.Title(chapter[ChapterTable.name]),
         series = ComicInfo.Series(manga[MangaTable.title]),
         number =
@@ -54,7 +58,11 @@ fun getComicInfo(
         letterer = null,
         coverArtist = null,
         tags = null,
-)
+        day = localDate?.dayOfMonth?.let { ComicInfo.Day(it) },
+        month = localDate?.monthValue?.let { ComicInfo.Month(it) },
+        year = localDate?.year?.let { ComicInfo.Year(it) },
+    )
+}
 
 /**
  * Creates a ComicInfo.xml file inside the given directory.