Add chapter and manga meta field

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

@@ -0,0 +1,45 @@
+package suwayomi.tachidesk.graphql.dataLoaders
+
+import com.expediagroup.graphql.dataloader.KotlinDataLoader
+import org.dataloader.DataLoader
+import org.dataloader.DataLoaderFactory
+import org.jetbrains.exposed.sql.StdOutSqlLogger
+import org.jetbrains.exposed.sql.addLogger
+import org.jetbrains.exposed.sql.select
+import org.jetbrains.exposed.sql.transactions.transaction
+import suwayomi.tachidesk.graphql.types.ChapterMetaItem
+import suwayomi.tachidesk.graphql.types.MangaMetaItem
+import suwayomi.tachidesk.graphql.types.MetaType
+import suwayomi.tachidesk.manga.model.table.ChapterMetaTable
+import suwayomi.tachidesk.manga.model.table.MangaMetaTable
+import java.util.concurrent.CompletableFuture
+
+class ChapterMetaDataLoader : KotlinDataLoader<Int, MetaType> {
+    override val dataLoaderName = "ChapterMetaDataLoader"
+    override fun getDataLoader(): DataLoader<Int, MetaType> = DataLoaderFactory.newDataLoader<Int, MetaType> { ids ->
+        CompletableFuture.supplyAsync {
+            transaction {
+                addLogger(StdOutSqlLogger)
+                val metasByChapterId = ChapterMetaTable.select { ChapterMetaTable.ref inList ids }
+                    .map { ChapterMetaItem(it) }
+                    .groupBy { it.ref }
+                ids.map { metasByChapterId[it] ?: emptyList() }
+            }
+        }
+    }
+}
+
+class MangaMetaDataLoader : KotlinDataLoader<Int, MetaType> {
+    override val dataLoaderName = "MangaMetaDataLoader"
+    override fun getDataLoader(): DataLoader<Int, MetaType> = DataLoaderFactory.newDataLoader<Int, MetaType> { ids ->
+        CompletableFuture.supplyAsync {
+            transaction {
+                addLogger(StdOutSqlLogger)
+                val metasByChapterId = MangaMetaTable.select { MangaMetaTable.ref inList ids }
+                    .map { MangaMetaItem(it) }
+                    .groupBy { it.ref }
+                ids.map { metasByChapterId[it] ?: emptyList() }
+            }
+        }
+    }
+}

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

@@ -12,5 +12,7 @@ import com.expediagroup.graphql.dataloader.KotlinDataLoaderRegistryFactory
 val tachideskDataLoaderRegistryFactory = KotlinDataLoaderRegistryFactory(
     MangaDataLoader(),
     ChapterDataLoader(),
-    ChaptersForMangaDataLoader()
+    ChaptersForMangaDataLoader(),
+    ChapterMetaDataLoader(),
+    MangaMetaDataLoader()
 )

server/src/main/kotlin/suwayomi/tachidesk/graphql/types/ChapterType.kt

@@ -30,7 +30,6 @@ class ChapterType(
     val isDownloaded: Boolean,
     val pageCount: Int
 //    val chapterCount: Int?,
-//    val meta: Map<String, String> = emptyMap()
 ) {
     constructor(row: ResultRow) : this(
         row[ChapterTable.id].value,
@@ -49,14 +48,13 @@ class ChapterType(
         row[ChapterTable.isDownloaded],
         row[ChapterTable.pageCount]
 //        transaction { ChapterTable.select { manga eq chapterEntry[manga].value }.count().toInt() },
-//        Chapter.getChapterMetaMap(chapterEntry[id])
     )
 
     fun manga(dataFetchingEnvironment: DataFetchingEnvironment): CompletableFuture<MangaType> {
         return dataFetchingEnvironment.getValueFromDataLoader<Int, MangaType>("MangaDataLoader", mangaId)
     }
 
-//    fun chapters(): List<String> {
-//        return listOf("Foo", "Bar", "Baz")
-//    }
+    fun meta(dataFetchingEnvironment: DataFetchingEnvironment): CompletableFuture<MetaType> {
+        return dataFetchingEnvironment.getValueFromDataLoader<Int, MetaType>("ChapterMetaDataLoader", id)
+    }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/types/MangaType.kt

@@ -67,4 +67,8 @@ class MangaType(
 
         return Instant.now().epochSecond.minus(chaptersLastFetchedAt!!)
     }
+
+    fun meta(dataFetchingEnvironment: DataFetchingEnvironment): CompletableFuture<MetaType> {
+        return dataFetchingEnvironment.getValueFromDataLoader<Int, MetaType>("MangaMetaDataLoader", id)
+    }
 }

server/src/main/kotlin/suwayomi/tachidesk/graphql/types/MetaType.kt

@@ -0,0 +1,23 @@
+package suwayomi.tachidesk.graphql.types
+
+import com.expediagroup.graphql.generator.annotations.GraphQLIgnore
+import org.jetbrains.exposed.sql.ResultRow
+import suwayomi.tachidesk.manga.model.table.ChapterMetaTable
+import suwayomi.tachidesk.manga.model.table.MangaMetaTable
+
+typealias MetaType = List<MetaItem>
+
+open class MetaItem(
+    val key: String,
+    val value: String,
+    @GraphQLIgnore
+    val ref: Int
+)
+
+class ChapterMetaItem(
+    private val row: ResultRow
+) : MetaItem(row[ChapterMetaTable.key], row[ChapterMetaTable.value], row[ChapterMetaTable.ref].value)
+
+class MangaMetaItem(
+    private val row: ResultRow
+) : MetaItem(row[MangaMetaTable.key], row[MangaMetaTable.value], row[MangaMetaTable.ref].value)