Hide sync library option when sync is disabled (#1275)

* Hide sync library option when sync is disabled

- Add isSyncEnabled parameter to LibraryToolbar and LibraryRegularToolbar
- Pass isSyncEnabled from LibraryTab to LibraryToolbar
- Conditionally display sync library action based on isSyncEnabled
- Update LibraryContent to include isSyncEnabled parameter
- Adjust LibraryTab to handle sync-related functionality
- Remove direct dependency on SyncPreferences in LibraryToolbar

* Update LibraryScreenModel to react to sync service changes

- Replace static isSyncEnabled update with dynamic observation
- Use syncPreferences.syncService().changes() to update isSyncEnabled state
- Ensure isSyncEnabled is updated whenever the sync service changes

Co-authored-by: jobobby04 <jobobby04@users.noreply.github.com>

* Fix sync service state update in LibraryScreenModel

- Resolve ambiguity in lambda parameters
- Correctly update isSyncEnabled state based on syncService value

* Optimize sync service state updates in LibraryScreenModel

- Add distinctUntilChanged() to filter out consecutive duplicate emissions
- Simplify mutableState.update lambda for better readability
- Remove redundant boolean comparison in isSyncEnabled assignment

---------

Co-authored-by: jobobby04 <jobobby04@users.noreply.github.com>

app/src/main/java/eu/kanade/presentation/library/components/LibraryToolbar.kt

@@ -41,6 +41,7 @@ fun LibraryToolbar(
     onClickSyncNow: () -> Unit,
     // SY -->
     onClickSyncExh: (() -> Unit)?,
+    isSyncEnabled: Boolean,
     // SY <--
     searchQuery: String?,
     onSearchQueryChange: (String?) -> Unit,
@@ -64,6 +65,7 @@ fun LibraryToolbar(
         onClickSyncNow = onClickSyncNow,
         // SY -->
         onClickSyncExh = onClickSyncExh,
+        isSyncEnabled = isSyncEnabled,
         // SY <--
         scrollBehavior = scrollBehavior,
     )
@@ -82,6 +84,7 @@ private fun LibraryRegularToolbar(
     onClickSyncNow: () -> Unit,
     // SY -->
     onClickSyncExh: (() -> Unit)?,
+    isSyncEnabled: Boolean,
     // SY <--
     scrollBehavior: TopAppBarScrollBehavior?,
 ) {
@@ -128,10 +131,6 @@ private fun LibraryRegularToolbar(
                         title = stringResource(MR.strings.action_open_random_manga),
                         onClick = onClickOpenRandomManga,
                     ),
-                    AppBar.OverflowAction(
-                        title = stringResource(SYMR.strings.sync_library),
-                        onClick = onClickSyncNow,
-                    ),
                 ).builder().apply {
                     // SY -->
                     if (onClickSyncExh != null) {
@@ -142,6 +141,14 @@ private fun LibraryRegularToolbar(
                             ),
                         )
                     }
+                    if (isSyncEnabled) {
+                        add(
+                            AppBar.OverflowAction(
+                                title = stringResource(SYMR.strings.sync_library),
+                                onClick = onClickSyncNow,
+                            ),
+                        )
+                    }
                     // SY <--
                 }.build(),
             )

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

@@ -22,6 +22,7 @@ import eu.kanade.domain.base.BasePreferences
 import eu.kanade.domain.chapter.interactor.SetReadStatus
 import eu.kanade.domain.manga.interactor.UpdateManga
 import eu.kanade.domain.source.service.SourcePreferences
+import eu.kanade.domain.sync.SyncPreferences
 import eu.kanade.presentation.components.SEARCH_DEBOUNCE_MILLIS
 import eu.kanade.presentation.library.components.LibraryToolbarTitle
 import eu.kanade.presentation.manga.DownloadAction
@@ -151,6 +152,7 @@ class LibraryScreenModel(
     private val searchEngine: SearchEngine = Injekt.get(),
     private val setCustomMangaInfo: SetCustomMangaInfo = Injekt.get(),
     private val getMergedChaptersByMangaId: GetMergedChaptersByMangaId = Injekt.get(),
+    private val syncPreferences: SyncPreferences = Injekt.get(),
     // SY <--
 ) : StateScreenModel<LibraryScreenModel.State>(State()) {
 
@@ -274,6 +276,13 @@ class LibraryScreenModel(
                 }
             }
             .launchIn(screenModelScope)
+        syncPreferences.syncService()
+            .changes()
+            .distinctUntilChanged()
+            .onEach { syncService ->
+                mutableState.update { it.copy(isSyncEnabled = syncService != 0) }
+            }
+            .launchIn(screenModelScope)
         // SY <--
     }
 
@@ -1360,6 +1369,7 @@ class LibraryScreenModel(
         val dialog: Dialog? = null,
         // SY -->
         val showSyncExh: Boolean = false,
+        val isSyncEnabled: Boolean = false,
         val ogCategories: List<Category> = emptyList(),
         val groupType: Int = LibraryGroup.BY_DEFAULT,
         // SY <--

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

@@ -172,6 +172,7 @@ object LibraryTab : Tab {
                     },
                     // SY -->
                     onClickSyncExh = screenModel::openFavoritesSyncDialog.takeIf { state.showSyncExh },
+                    isSyncEnabled = state.isSyncEnabled,
                     // SY <--
                     searchQuery = state.searchQuery,
                     onSearchQueryChange = screenModel::search,