Fix merged manga chapterlist not updating, fix merge chapter downloads

app/src/main/java/eu/kanade/tachiyomi/source/online/all/MergedSource.kt

@@ -17,7 +17,6 @@ import eu.kanade.tachiyomi.source.model.toSChapter
 import eu.kanade.tachiyomi.source.model.toSManga
 import eu.kanade.tachiyomi.source.online.HttpSource
 import eu.kanade.tachiyomi.util.chapter.syncChaptersWithSource
-import eu.kanade.tachiyomi.util.lang.awaitSingle
 import eu.kanade.tachiyomi.util.lang.withIOContext
 import eu.kanade.tachiyomi.util.shouldDownloadNewChapters
 import exh.merged.sql.models.MergedMangaReference
@@ -78,10 +77,8 @@ class MergedSource : HttpSource() {
         }
     }
 
-    fun getChaptersFromDB(manga: Manga, editScanlators: Boolean = false, dedupe: Boolean = true): Observable<List<Chapter>> {
     // TODO more chapter dedupe
-        return db.getChaptersByMergedMangaId(manga.id!!).asRxObservable()
+    private fun transformMergedChapters(manga: Manga, chapterList: List<Chapter>, editScanlators: Boolean, dedupe: Boolean): List<Chapter> {
-            .map { chapterList ->
         val mangaReferences = db.getMergedMangaReferences(manga.id!!).executeAsBlocking()
         if (editScanlators) {
             val sources = mangaReferences.map { sourceManager.getOrStub(it.mangaSourceId) to it.mangaId }
@@ -93,7 +90,17 @@ class MergedSource : HttpSource() {
                 }
             }
         }
-                if (dedupe) dedupeChapterList(mangaReferences, chapterList) else chapterList
+        return if (dedupe) dedupeChapterList(mangaReferences, chapterList) else chapterList
+    }
+
+    fun getChaptersAsBlocking(manga: Manga, editScanlators: Boolean = false, dedupe: Boolean = true): List<Chapter> {
+        return transformMergedChapters(manga, db.getChaptersByMergedMangaId(manga.id!!).executeAsBlocking(), editScanlators, dedupe)
+    }
+
+    fun getChaptersObservable(manga: Manga, editScanlators: Boolean = false, dedupe: Boolean = true): Observable<List<Chapter>> {
+        return db.getChaptersByMergedMangaId(manga.id!!).asRxObservable()
+            .map { chapterList ->
+                transformMergedChapters(manga, chapterList, editScanlators, dedupe)
             }
     }
 
@@ -126,7 +133,7 @@ class MergedSource : HttpSource() {
     suspend fun fetchChaptersForMergedManga(manga: Manga, downloadChapters: Boolean = true, editScanlators: Boolean = false, dedupe: Boolean = true): List<Chapter> {
         return withIOContext {
             fetchChaptersAndSync(manga, downloadChapters)
-            getChaptersFromDB(manga, editScanlators, dedupe).awaitSingle()
+            getChaptersAsBlocking(manga, editScanlators, dedupe)
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryPresenter.kt

@@ -19,7 +19,6 @@ import eu.kanade.tachiyomi.source.online.HttpSource
 import eu.kanade.tachiyomi.source.online.all.MergedSource
 import eu.kanade.tachiyomi.ui.base.presenter.BasePresenter
 import eu.kanade.tachiyomi.util.isLocal
-import eu.kanade.tachiyomi.util.lang.awaitSingle
 import eu.kanade.tachiyomi.util.lang.combineLatest
 import eu.kanade.tachiyomi.util.lang.isNullOrUnsubscribed
 import eu.kanade.tachiyomi.util.lang.launchIO
@@ -33,7 +32,6 @@ import exh.source.isEhBasedManga
 import exh.util.executeOnIO
 import exh.util.isLewd
 import exh.util.nullIfBlank
-import kotlinx.coroutines.runBlocking
 import rx.Observable
 import rx.Subscription
 import rx.android.schedulers.AndroidSchedulers
@@ -547,7 +545,7 @@ class LibraryPresenter(
                     val chapter = db.getChapters(manga).executeOnIO().minByOrNull { it.source_order }
                     if (chapter != null && !chapter.read) listOf(chapter) else emptyList()
                 } else if (manga.source == MERGED_SOURCE_ID) {
-                    (sourceManager.getOrStub(MERGED_SOURCE_ID) as? MergedSource)?.getChaptersFromDB(manga)?.awaitSingle()?.filter { !it.read }.orEmpty()
+                    (sourceManager.getOrStub(MERGED_SOURCE_ID) as MergedSource).getChaptersAsBlocking(manga).filter { !it.read }
                 } else /* SY <-- */ db.getChapters(manga).executeAsBlocking()
                     .filter { !it.read }
 
@@ -602,7 +600,7 @@ class LibraryPresenter(
     fun markReadStatus(mangas: List<Manga>, read: Boolean) {
         mangas.forEach { manga ->
             launchIO {
-                val chapters = if (manga.source == MERGED_SOURCE_ID) (sourceManager.get(MERGED_SOURCE_ID) as? MergedSource)?.getChaptersFromDB(manga)?.awaitSingle().orEmpty() else db.getChapters(manga).executeAsBlocking()
+                val chapters = if (manga.source == MERGED_SOURCE_ID) (sourceManager.get(MERGED_SOURCE_ID) as MergedSource).getChaptersAsBlocking(manga) else db.getChapters(manga).executeAsBlocking()
                 chapters.forEach {
                     it.read = read
                     if (!read) {
@@ -689,7 +687,9 @@ class LibraryPresenter(
     // SY -->
     /** Returns first unread chapter of a manga */
     fun getFirstUnread(manga: Manga): Chapter? {
-        val chapters = (if (manga.source == MERGED_SOURCE_ID) (sourceManager.get(MERGED_SOURCE_ID) as? MergedSource).let { runBlocking { it?.getChaptersFromDB(manga)?.awaitSingle().orEmpty() } } else db.getChapters(manga).executeAsBlocking())
+        val chapters = if (manga.source == MERGED_SOURCE_ID) {
+            (sourceManager.get(MERGED_SOURCE_ID) as MergedSource).getChaptersAsBlocking(manga)
+        } else db.getChapters(manga).executeAsBlocking()
         return if (manga.isEhBasedManga()) {
             val chapter = chapters.sortedBy { it.source_order }.getOrNull(0)
             if (chapter?.read == false) chapter else null

app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaPresenter.kt

@@ -211,7 +211,7 @@ class MangaPresenter(
         // Add the subscription that retrieves the chapters from the database, keeps subscribed to
         // changes, and sends the list of chapters to the relay.
         add(
-            (/* SY --> */if (source is MergedSource) source.getChaptersFromDB(manga, true, dedupe) else /* SY <-- */ db.getChapters(manga).asRxObservable())
+            (/* SY --> */if (source is MergedSource) source.getChaptersObservable(manga, true, dedupe) else /* SY <-- */ db.getChapters(manga).asRxObservable())
                 .map { chapters ->
                     // Convert every chapter to a model.
                     chapters.map { it.toModel() }
@@ -759,10 +759,17 @@ class MangaPresenter(
         val isMergedSource = source is MergedSource
         // SY <--
         chapters
-            .filter { downloadManager.isChapterDownloaded(it, /* SY --> */ if (isMergedSource) mergedManga.firstOrNull { manga -> it.manga_id == manga.id } ?: manga else /* SY <-- */ manga) }
+            .filter { downloadManager.isChapterDownloaded(/* SY --> */ if (isMergedSource) it.toMergedDownloadChapter() else it, if (isMergedSource) mergedManga.firstOrNull { manga -> it.manga_id == manga.id } ?: manga else /* SY <-- */ manga) }
             .forEach { it.status = Download.State.DOWNLOADED }
     }
 
+    private fun Chapter.toMergedDownloadChapter() = Chapter.create().apply {
+        url = this@toMergedDownloadChapter.url
+        name = this@toMergedDownloadChapter.name
+        id = this@toMergedDownloadChapter.id
+        scanlator = this@toMergedDownloadChapter.scanlator?.substringAfter(": ")
+    }
+
     /**
      * Requests an updated list of chapters from the source.
      */
@@ -919,7 +926,7 @@ class MangaPresenter(
         if (source is MergedSource) {
             chapters.groupBy { it.manga_id }.forEach { map ->
                 val manga = mergedManga.firstOrNull { it.id == map.key } ?: return@forEach
-                downloadManager.downloadChapters(manga, map.value.onEach { chapter -> chapter.scanlator?.let { chapter.scanlator = it.substringBefore(":") } })
+                downloadManager.downloadChapters(manga, map.value.map { it.toMergedDownloadChapter() })
             }
         } else /* SY <-- */ downloadManager.downloadChapters(manga, chapters)
     }

app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderPresenter.kt

@@ -26,7 +26,6 @@ import eu.kanade.tachiyomi.ui.reader.model.ReaderChapter
 import eu.kanade.tachiyomi.ui.reader.model.ReaderPage
 import eu.kanade.tachiyomi.ui.reader.model.ViewerChapters
 import eu.kanade.tachiyomi.util.isLocal
-import eu.kanade.tachiyomi.util.lang.awaitSingle
 import eu.kanade.tachiyomi.util.lang.byteSize
 import eu.kanade.tachiyomi.util.lang.launchIO
 import eu.kanade.tachiyomi.util.lang.takeBytes
@@ -47,7 +46,6 @@ import exh.util.mangaType
 import exh.util.shouldDeleteChapters
 import kotlinx.coroutines.async
 import kotlinx.coroutines.awaitAll
-import kotlinx.coroutines.runBlocking
 import rx.Observable
 import rx.Subscription
 import rx.android.schedulers.AndroidSchedulers
@@ -118,7 +116,10 @@ class ReaderPresenter(
         val meta = meta
         val filteredScanlators = meta?.filteredScanlators?.let { MdUtil.getScanlators(it) }
         // SY <--
-        val dbChapters = /* SY --> */if (manga.source == MERGED_SOURCE_ID) runBlocking { (sourceManager.get(MERGED_SOURCE_ID) as? MergedSource)?.getChaptersFromDB(manga)?.awaitSingle().orEmpty() } else /* SY <-- */ db.getChapters(manga).executeAsBlocking()
+        val dbChapters = /* SY --> */ if (manga.source == MERGED_SOURCE_ID) {
+            (sourceManager.get(MERGED_SOURCE_ID) as MergedSource)
+                .getChaptersAsBlocking(manga)
+        } else /* SY <-- */ db.getChapters(manga).executeAsBlocking()
 
         val selectedChapter = dbChapters.find { it.id == chapterId }
             ?: error("Requested chapter of id $chapterId not found in chapter list")

app/src/main/java/exh/merged/sql/queries/MergedQueries.kt

@@ -11,6 +11,7 @@ import eu.kanade.tachiyomi.data.database.queries.getAllMergedMangaQuery
 import eu.kanade.tachiyomi.data.database.queries.getMergedChaptersQuery
 import eu.kanade.tachiyomi.data.database.queries.getMergedMangaFromUrlQuery
 import eu.kanade.tachiyomi.data.database.queries.getMergedMangaQuery
+import eu.kanade.tachiyomi.data.database.tables.ChapterTable
 import exh.merged.sql.models.MergedMangaReference
 import exh.merged.sql.resolvers.MergeMangaSettingsPutResolver
 import exh.merged.sql.resolvers.MergedMangaIdPutResolver
@@ -105,6 +106,7 @@ interface MergedQueries : DbProvider {
             RawQuery.builder()
                 .query(getMergedChaptersQuery())
                 .args(mergedMangaId)
+                .observesTables(ChapterTable.TABLE, MergedTable.TABLE)
                 .build()
         )
         .prepare()