import 'dart:io';
import 'package:flutter_test/flutter_test.dart';
import 'package:file_picker/file_picker.dart';
import 'package:ikar/core/utils/save_file_as.dart';
import 'package:ikar/core/utils/media_saver.dart';

class _Picker extends FilePicker {
  final String? directory;
  _Picker(this.directory);
  @override
  Future<String?> getDirectoryPath({String? dialogTitle, bool lockParentWindow = false, String? initialDirectory}) async => directory;
}

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();
  test('save as preserves an existing file and copies bytes to a new name', () async {
    final dir = await Directory.systemTemp.createTemp('qlyra_export_');
    addTearDown(() async { FilePicker.platform = _Picker(null); await dir.delete(recursive: true); });
    FilePicker.platform = _Picker(dir.path);
    final source = File('${dir.path}/source.bin');
    await source.writeAsBytes([1, 2, 3]);
    final existing = File('${dir.path}/export.bin');
    await existing.writeAsBytes([9]);
    final result = await saveFileAs(source: source, fileName: 'export.bin', dialogTitle: 'Save');
    expect(result.saved, isTrue);
    expect(await File(result.path!).readAsBytes(), [1, 2, 3]);
    expect(await existing.readAsBytes(), [9]);
    FilePicker.platform = _Picker(null);
    final cancelled = await saveFileAs(source: source, fileName: 'export.bin', dialogTitle: 'Save');
    expect(cancelled.cancelled, isTrue);
    expect(cancelled.saved, isFalse);
  });
  test('missing local media reports failure', () async {
    final dir = await Directory.systemTemp.createTemp('qlyra_missing_');
    addTearDown(() => dir.delete(recursive: true));
    final result = await saveLocalMedia(File('${dir.path}/missing.mp4'), saveName: 'video.mp4', kind: SaveMediaKind.video);
    expect(result.ok, isFalse);
  });
}