Add option to force ascending sort on gallery versions

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt

@@ -196,4 +196,6 @@ object PreferenceKeys {
     const val eh_aggressivePageLoading = "eh_aggressive_page_loading"
 
     const val eh_hl_useHighQualityThumbs = "eh_hl_hq_thumbs"
+
+    const val eh_forceSortEhVersionsAsc = "eh_force_sort_eh_versions_asc"
 }

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt

@@ -269,4 +269,6 @@ class PreferencesHelper(val context: Context) {
     fun eh_aggressivePageLoading() = rxPrefs.getBoolean(Keys.eh_aggressivePageLoading, false)
 
     fun eh_hl_useHighQualityThumbs() = rxPrefs.getBoolean(Keys.eh_hl_useHighQualityThumbs, false)
+
+    fun eh_forceSortEhVersionsAsc() = rxPrefs.getBoolean(Keys.eh_forceSortEhVersionsAsc, true)
 }

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

@@ -446,7 +446,8 @@ class ChaptersPresenter(
      * Whether the sorting method is descending or ascending.
      */
     fun sortDescending(): Boolean {
-        return manga.sortDescending()
+        return !((source.id == EH_SOURCE_ID || source.id == EXH_SOURCE_ID)
+                && preferences.eh_forceSortEhVersionsAsc().getOrDefault()) && manga.sortDescending()
     }
 
 }

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsEhController.kt

@@ -156,6 +156,12 @@ class SettingsEhController : SettingsController() {
             onChange { preferences.imageQuality().reconfigure() }
         }.dependency = PreferenceKeys.eh_enableExHentai
 
+        switchPreference {
+            title = "Force ascending sort on gallery versions"
+            key = PreferenceKeys.eh_forceSortEhVersionsAsc
+            defaultValue = true
+        }
+
         preferenceCategory {
             title = "Favorites sync"