70 lines
2.8 KiB
Dart
70 lines
2.8 KiB
Dart
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import 'dart:convert';
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import 'dart:io';
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import 'package:http/http.dart' show get;
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import 'package:path_provider/path_provider.dart';
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import 'package:wonders/common_libs.dart';
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import 'package:wonders/logic/data/wonder_data.dart';
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import 'package:wonders/logic/unsplash_service.dart';
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import 'package:wonders/logic/wonders_logic.dart';
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class UnsplashDownloadService {
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static final UnsplashService _unsplash = UnsplashService();
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static final WondersLogic _wondersLogic = WondersLogic();
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/// Downloads one image in various sizes
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static Future<int> downloadImageSet(String id) async {
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final photo = await _unsplash.loadInfo(id);
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int saveCount = 0;
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if (photo != null) {
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final rootDir = await getApplicationDocumentsDirectory();
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final imagesDir = '${rootDir.path}/unsplash_images';
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await Directory(imagesDir).create(recursive: true);
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debugPrint('Downloading image set $id to $imagesDir');
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final sizes = [32, 400, 800, 2000, 1600, 4000];
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for (var size in sizes) {
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final url = photo.getUnsplashUrl(size);
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final imgResponse = await get(Uri.parse(url));
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File file = File('$imagesDir/$id-$size.jpg');
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file.writeAsBytesSync(imgResponse.bodyBytes);
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//print('file saved @ ${file.path}');
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saveCount++;
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}
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}
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return saveCount;
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}
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/// Downloads all images for a single collection, in various sizes
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static Future<void> downloadCollectionImages(WonderData data) async {
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final collection = await _unsplash.loadCollectionPhotos(data.unsplashCollectionId) ?? [];
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debugPrint('download: ${collection.length} images for ${data.title}');
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int downloadCount = 0;
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for (var p in collection) {
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downloadCount += await downloadImageSet(p);
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}
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debugPrint('${data.title} complete, downloads = $downloadCount');
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}
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/// Downloads all images for all collections
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static Future<void> downloadAllCollections() async {
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/// Note: intentionally not in parallel so as to not annoy the unsplash servers
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for (var w in _wondersLogic.all) {
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await downloadCollectionImages(w);
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}
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}
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/// Generates a map we can use to look up collection images without needing to copy all 200 ids by hand.
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/// Spits the results into the log, developers can copy and paste them from there into a dart file somewhere.
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static Future<void> printPhotosByCollectionIdMap() async {
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/// Note: intentionally not in parallel so as to not annoy the unsplash servers
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Map<String, List<String>> imageListByCollectionId = {};
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for (var w in _wondersLogic.all) {
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final collection = await _unsplash.loadCollectionPhotos(w.unsplashCollectionId) ?? [];
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imageListByCollectionId[w.unsplashCollectionId] = collection;
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}
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debugPrint('''
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final photosByCollectionId = ${jsonEncode(imageListByCollectionId).replaceAll('"', '\'')};
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''');
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}
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}
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