Add option to hide missing chapter count (#2108)

Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>

CHANGELOG.md

@@ -31,6 +31,7 @@ The format is a modified version of [Keep a Changelog](https://keepachangelog.co
 - Surface image loading error in Reader ([@AwkwardPeak7](https://github.com/AwkwardPeak7)) ([#1981](https://github.com/mihonapp/mihon/pull/1981))
 - Include source headers when opening failed images from reader ([@AwkwardPeak7](https://github.com/AwkwardPeak7)) ([#2004](https://github.com/mihonapp/mihon/pull/2004))
 - Added autofill support to tracker login dialog ([@AntsyLich](https://github.com/AntsyLich)) ([#2069](https://github.com/mihonapp/mihon/pull/2069))
+- Added option to hide missing chapter count ([@User826](https://github.com/User826), [@AntsyLich](https://github.com/AntsyLich)) ([#2108](https://github.com/mihonapp/mihon/pull/2108))
 
 ### Changed
 - Display all similarly named duplicates in duplicate manga dialogue ([@NarwhalHorns](https://github.com/NarwhalHorns), [@AntsyLich](https://github.com/AntsyLich)) ([#1861](https://github.com/mihonapp/mihon/pull/1861))

app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsLibraryScreen.kt

@@ -256,6 +256,10 @@ object SettingsLibraryScreen : SearchableSettings {
                     ),
                     title = stringResource(MR.strings.pref_mark_duplicate_read_chapter_read),
                 ),
+                Preference.PreferenceItem.SwitchPreference(
+                    preference = libraryPreferences.hideMissingChapters(),
+                    title = stringResource(MR.strings.pref_hide_missing_chapter_indicators),
+                ),
             ),
         )
     }

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

@@ -230,6 +230,7 @@ class MangaScreenModel(
                     excludedScanlators = getExcludedScanlators.await(mangaId),
                     isRefreshingData = needRefreshInfo || needRefreshChapter,
                     dialog = null,
+                    hideMissingChapters = libraryPreferences.hideMissingChapters().get(),
                 )
             }
 
@@ -1126,6 +1127,7 @@ class MangaScreenModel(
             val isRefreshingData: Boolean = false,
             val dialog: Dialog? = null,
             val hasPromptedToAddBefore: Boolean = false,
+            val hideMissingChapters: Boolean = false,
         ) : State {
             val processedChapters by lazy {
                 chapters.applyFilters(manga).toList()
@@ -1136,6 +1138,10 @@ class MangaScreenModel(
             }
 
             val chapterListItems by lazy {
+                if (hideMissingChapters) {
+                    return@lazy processedChapters
+                }
+
                 processedChapters.insertSeparators { before, after ->
                     val (lowerChapter, higherChapter) = if (manga.sortDescending()) {
                         after to before

domain/src/main/java/tachiyomi/domain/library/service/LibraryPreferences.kt

@@ -175,6 +175,7 @@ class LibraryPreferences(
 
     fun autoClearChapterCache() = preferenceStore.getBoolean("auto_clear_chapter_cache", false)
 
+    fun hideMissingChapters() = preferenceStore.getBoolean("pref_hide_missing_chapter_indicators", false)
     // endregion
 
     // region Swipe Actions

i18n/src/commonMain/moko-resources/base/strings.xml

@@ -317,6 +317,8 @@
     <string name="pref_mark_duplicate_read_chapter_read_existing">After reading a chapter</string>
     <string name="pref_mark_duplicate_read_chapter_read_new">After fetching new chapter</string>
 
+    <string name="pref_hide_missing_chapter_indicators">Hide missing chapter indicators</string>
+
       <!-- Extension section -->
     <string name="multi_lang">Multi</string>
     <string name="ext_updates_pending">Updates pending</string>