Fix offline manga details

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/Flow.kt

@@ -4,6 +4,7 @@ import android.os.SystemClock
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.onCompletion
@@ -62,3 +63,23 @@ fun <T> Flow<T>.zipWithPrevious(): Flow<Pair<T?, T>> = flow {
 		emit(result)
 	}
 }
+
+@Suppress("UNCHECKED_CAST")
+fun <T1, T2, T3, T4, T5, T6, R> combine(
+	flow: Flow<T1>,
+	flow2: Flow<T2>,
+	flow3: Flow<T3>,
+	flow4: Flow<T4>,
+	flow5: Flow<T5>,
+	flow6: Flow<T6>,
+	transform: suspend (T1, T2, T3, T4, T5, T6) -> R
+): Flow<R> = combine(flow, flow2, flow3, flow4, flow5, flow6) { args: Array<*> ->
+	transform(
+		args[0] as T1,
+		args[1] as T2,
+		args[2] as T3,
+		args[3] as T4,
+		args[4] as T5,
+		args[5] as T6,
+	)
+}

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsViewModel.kt

@@ -31,12 +31,14 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.bookmarks.domain.BookmarksRepository
 import org.koitharu.kotatsu.core.model.getPreferredBranch
+import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.parser.MangaIntent
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.prefs.observeAsStateFlow
 import org.koitharu.kotatsu.core.ui.BaseViewModel
 import org.koitharu.kotatsu.core.util.ext.MutableEventFlow
 import org.koitharu.kotatsu.core.util.ext.call
+import org.koitharu.kotatsu.core.util.ext.combine
 import org.koitharu.kotatsu.core.util.ext.computeSize
 import org.koitharu.kotatsu.core.util.ext.requireValue
 import org.koitharu.kotatsu.core.util.ext.sanitize
@@ -72,6 +74,7 @@ class DetailsViewModel @Inject constructor(
 	savedStateHandle: SavedStateHandle,
 	private val deleteLocalMangaUseCase: DeleteLocalMangaUseCase,
 	private val doubleMangaLoadUseCase: DoubleMangaLoadUseCase,
+	networkState: NetworkState,
 ) : BaseViewModel() {
 
 	private val intent = MangaIntent(savedStateHandle)
@@ -176,8 +179,9 @@ class DetailsViewModel @Inject constructor(
 			selectedBranch,
 			newChaptersCount,
 			bookmarks,
-		) { manga, history, branch, news, bookmarks ->
-			mapChapters(manga?.remote, manga?.local, history, news, branch, bookmarks)
+			networkState,
+		) { manga, history, branch, news, bookmarks, isOnline ->
+			mapChapters(manga?.remote?.takeIf { isOnline }, manga?.local, history, news, branch, bookmarks)
 		},
 		isChaptersReversed,
 		chaptersQuery,