57 lines
2.0 KiB
Dart
57 lines
2.0 KiB
Dart
import '../media/media_hub.dart';
|
|
import '../media/media_library.dart';
|
|
import 'global_key_utils.dart';
|
|
|
|
/// Sorts home hubs by the user's library order. Hubs without a known library
|
|
/// stay after known-library hubs, preserving their relative server order.
|
|
bool sortMediaHubsByLibraryOrder(List<MediaHub> hubs, List<MediaLibrary> libraryOrder) {
|
|
if (hubs.length < 2 || libraryOrder.isEmpty) return false;
|
|
|
|
final orderByGlobalKey = <String, int>{};
|
|
for (var i = 0; i < libraryOrder.length; i++) {
|
|
orderByGlobalKey.putIfAbsent(libraryOrder[i].globalKey, () => i);
|
|
}
|
|
|
|
final indexedHubs = [for (var i = 0; i < hubs.length; i++) (index: i, hub: hubs[i])];
|
|
indexedHubs.sort((a, b) {
|
|
final aIndex = _hubLibraryOrderIndex(a.hub, orderByGlobalKey);
|
|
final bIndex = _hubLibraryOrderIndex(b.hub, orderByGlobalKey);
|
|
if (aIndex == null && bIndex == null) return a.index.compareTo(b.index);
|
|
if (aIndex == null) return 1;
|
|
if (bIndex == null) return -1;
|
|
|
|
final order = aIndex.compareTo(bIndex);
|
|
if (order != 0) return order;
|
|
return a.index.compareTo(b.index);
|
|
});
|
|
|
|
var changed = false;
|
|
for (var i = 0; i < hubs.length; i++) {
|
|
final hub = indexedHubs[i].hub;
|
|
if (!identical(hubs[i], hub)) changed = true;
|
|
hubs[i] = hub;
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
int? _hubLibraryOrderIndex(MediaHub hub, Map<String, int> orderByGlobalKey) {
|
|
final hubLibraryKey = _globalKey(hub.serverId, hub.libraryId);
|
|
final hubIndex = hubLibraryKey == null ? null : orderByGlobalKey[hubLibraryKey];
|
|
if (hubIndex != null) return hubIndex;
|
|
|
|
int? bestIndex;
|
|
for (final item in hub.items) {
|
|
final key = _globalKey(item.serverId ?? hub.serverId, item.libraryId);
|
|
final index = key == null ? null : orderByGlobalKey[key];
|
|
if (index != null && (bestIndex == null || index < bestIndex)) {
|
|
bestIndex = index;
|
|
}
|
|
}
|
|
return bestIndex;
|
|
}
|
|
|
|
String? _globalKey(String? serverId, String? libraryId) {
|
|
if (serverId == null || libraryId == null) return null;
|
|
return buildGlobalKey(serverId, libraryId);
|
|
}
|