Add updates

server/src/main/kotlin/suwayomi/tachidesk/graphql/queries/UpdatesQuery.kt

@@ -0,0 +1,48 @@
+/*
+ * 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/. */
+
+package suwayomi.tachidesk.graphql.queries
+
+import org.jetbrains.exposed.sql.SortOrder
+import org.jetbrains.exposed.sql.SqlExpressionBuilder.eq
+import org.jetbrains.exposed.sql.SqlExpressionBuilder.greater
+import org.jetbrains.exposed.sql.and
+import org.jetbrains.exposed.sql.select
+import org.jetbrains.exposed.sql.transactions.transaction
+import suwayomi.tachidesk.graphql.types.UpdatesType
+import suwayomi.tachidesk.manga.model.dataclass.PaginationFactor
+import suwayomi.tachidesk.manga.model.table.ChapterTable
+import suwayomi.tachidesk.manga.model.table.MangaTable
+
+/**
+ * TODO Queries
+ *
+ * TODO Mutations
+ * - Update the library
+ * - Update a category
+ * - Reset updater
+ *
+ */
+class UpdatesQuery {
+    data class UpdatesQueryInput(
+        val page: Int
+    )
+
+    fun updates(input: UpdatesQueryInput): List<UpdatesType> {
+        val results = transaction {
+            ChapterTable.innerJoin(MangaTable)
+                .select { (MangaTable.inLibrary eq true) and (ChapterTable.fetchedAt greater MangaTable.inLibraryAt) }
+                .orderBy(ChapterTable.fetchedAt to SortOrder.DESC)
+                .limit(PaginationFactor, (input.page - 1L) * PaginationFactor)
+                .map {
+                    UpdatesType(it)
+                }
+        }
+
+        return results
+    }
+}