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added image cache managing

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This commit is contained in:
Mehul Ahal 2022-12-21 23:40:39 +01:00
parent b7045fc242
commit 2ff4d44d25
14 changed files with 188 additions and 80 deletions
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16
lib/features/home/services/images_service.dart
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@ -1,3 +1,4 @@
import 'package:mc_gallery/features/core/services/logging_service.dart';
import 'package:mc_gallery/features/home/data/models/image_model.dart';
import 'package:mc_gallery/locator.dart';
@ -8,20 +9,33 @@ import '../abstracts/images_api.dart';
/// Since this is very simple use-case, this is the only interface. For complex (actual CRUD-based) I/O,
/// an additional Repository layer interface can be used between [ImagesService] and [ImagesApi].
class ImagesService {
ImagesService({required ImagesApi imagesApi}) : _imagesApi = imagesApi {
ImagesService({
required ImagesApi imagesApi,
required LoggingService loggingService,
}) : _imagesApi = imagesApi,
_loggingService = loggingService {
_init();
}
final ImagesApi _imagesApi;
final LoggingService _loggingService;
late final Iterable<ImageModel> _imageModels;
Iterable<ImageModel> get imageModels => _imageModels;
Future<void> _init() async {
_loggingService.info('Fetching and creating image models...');
_imageModels = await _imagesApi.fetchImageUri(token: '');
_imageModels.isNotEmpty
? _loggingService.good("Created ${_imageModels.length} images' models")
: _loggingService.warning('No images found');
Locator.instance().signalReady(this);
}
int get firstAvailableImageIndex => 0;
int get lastAvailableImageIndex => _imageModels.length - 1;
static ImagesService get locate => Locator.locate();
}