From 526325c001d7071f7ac370355d2c0defd7f222d1 Mon Sep 17 00:00:00 2001
From: Kivlan <kivlanbahmidt@gmail.com>
Date: Sun, 2 Jul 2023 15:34:22 +0700
Subject: [PATCH] feature: automatically mark new duplicate read chapters as
 read

---
 .../more/settings/screen/SettingsLibraryScreen.kt  |  5 +++++
 .../tachiyomi/data/library/LibraryUpdateJob.kt     | 14 +++++++++++++-
 .../domain/library/service/LibraryPreferences.kt   |  2 ++
 i18n/src/main/res/values/strings.xml               |  2 ++
 4 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsLibraryScreen.kt b/app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsLibraryScreen.kt
index e009675763..b32b26a7ec 100644
--- a/app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsLibraryScreen.kt
+++ b/app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsLibraryScreen.kt
@@ -269,6 +269,11 @@ object SettingsLibraryScreen : SearchableSettings {
                     pref = libraryPreferences.newShowUpdatesCount(),
                     title = stringResource(R.string.pref_library_update_show_tab_badge),
                 ),
+                Preference.PreferenceItem.SwitchPreference(
+                    pref = libraryPreferences.libraryReadDuplicateChapters(),
+                    title = stringResource(R.string.pref_library_mark_duplicate_chapters),
+                    subtitle = stringResource(R.string.pref_library_mark_duplicate_chapters_summary),
+                ),
             ),
         )
     }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateJob.kt b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateJob.kt
index 54e000d5fa..93bad07dac 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateJob.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateJob.kt
@@ -14,6 +14,7 @@ import androidx.work.WorkInfo
 import androidx.work.WorkQuery
 import androidx.work.WorkerParameters
 import androidx.work.workDataOf
+import eu.kanade.domain.chapter.interactor.SetReadStatus
 import eu.kanade.domain.chapter.interactor.SyncChaptersWithSource
 import eu.kanade.domain.chapter.interactor.SyncChaptersWithTrackServiceTwoWay
 import eu.kanade.domain.manga.interactor.UpdateManga
@@ -101,6 +102,7 @@ class LibraryUpdateJob(private val context: Context, workerParams: WorkerParamet
     private val getTracks: GetTracks = Injekt.get()
     private val insertTrack: InsertTrack = Injekt.get()
     private val syncChaptersWithTrackServiceTwoWay: SyncChaptersWithTrackServiceTwoWay = Injekt.get()
+    private val setReadStatus: SetReadStatus = Injekt.get()
 
     private val notifier = LibraryUpdateNotifier(context)
 
@@ -262,7 +264,17 @@ class LibraryUpdateJob(private val context: Context, workerParams: WorkerParamet
                                         else -> {
                                             try {
                                                 val newChapters = updateManga(manga)
-                                                    .sortedByDescending { it.sourceOrder }
+                                                    .sortedByDescending { it.sourceOrder }.run {
+                                                        if (libraryPreferences.libraryReadDuplicateChapters().get()) {
+                                                            val readChapters = getChapterByMangaId.await(manga.id).filter { it.read }
+                                                            val newReadChapters = this.filter { chapter -> readChapters.any { it.chapterNumber == chapter.chapterNumber } }
+                                                                .also { setReadStatus.await(true, *it.toTypedArray()) }
+
+                                                            this.filterNot { newReadChapters.contains(it) }
+                                                        } else {
+                                                            this
+                                                        }
+                                                    }
 
                                                 if (newChapters.isNotEmpty()) {
                                                     val categoryIds = getCategories.await(manga.id).map { it.id }
diff --git a/domain/src/main/java/tachiyomi/domain/library/service/LibraryPreferences.kt b/domain/src/main/java/tachiyomi/domain/library/service/LibraryPreferences.kt
index de66117ad8..159343e8aa 100644
--- a/domain/src/main/java/tachiyomi/domain/library/service/LibraryPreferences.kt
+++ b/domain/src/main/java/tachiyomi/domain/library/service/LibraryPreferences.kt
@@ -38,6 +38,8 @@ class LibraryPreferences(
         ),
     )
 
+    fun libraryReadDuplicateChapters() = preferenceStore.getBoolean("pref_library_mark_duplicate_chapters", false)
+
     fun leadingExpectedDays() = preferenceStore.getInt("pref_library_before_expect_key", 1)
     fun followingExpectedDays() = preferenceStore.getInt("pref_library_after_expect_key", 1)
 
diff --git a/i18n/src/main/res/values/strings.xml b/i18n/src/main/res/values/strings.xml
index 7dddc5ca6a..29850ba57f 100644
--- a/i18n/src/main/res/values/strings.xml
+++ b/i18n/src/main/res/values/strings.xml
@@ -277,6 +277,8 @@
     <string name="pref_library_update_refresh_metadata_summary">Check for new cover and details when updating library</string>
     <string name="pref_library_update_refresh_trackers">Automatically refresh trackers</string>
     <string name="pref_library_update_refresh_trackers_summary">Update trackers when updating library</string>
+    <string name="pref_library_mark_duplicate_chapters">Mark new duplicate chapters as read</string>
+    <string name="pref_library_mark_duplicate_chapters_summary">Automatically mark new chapters as read if it has been read before</string>
 
     <string name="default_category">Default category</string>
     <string name="default_category_summary">Always ask</string>