Polish mobile UX downloads and comments

2026-05-23 12:15:20 +03:00
parent 63da741295
commit f9938e393d
24 changed files with 571 additions and 61 deletions
@@ -0,0 +1,77 @@
+import 'dart:io';
+
+import 'package:dio/dio.dart';
+import 'package:file_selector/file_selector.dart';
+import 'package:flutter/services.dart';
+import 'package:path/path.dart' as p;
+import 'package:path_provider/path_provider.dart';
+
+import '../models/post.dart';
+
+class DownloadService {
+  DownloadService({Dio? dio}) : _dio = dio ?? Dio();
+
+  static const _channel = MethodChannel('rulegel/downloads');
+
+  final Dio _dio;
+
+  Future<String?> downloadPost(
+    Post post, {
+    void Function(int received, int total)? onProgress,
+  }) async {
+    final url = _downloadUrl(post);
+    if (url == null) {
+      throw StateError('No downloadable URL for this post.');
+    }
+    final fileName = _fileName(post, url);
+    if (Platform.isAndroid) {
+      final tempDir = await getTemporaryDirectory();
+      final tempPath = p.join(tempDir.path, fileName);
+      await _dio.download(url, tempPath, onReceiveProgress: onProgress);
+      final saved = await _channel.invokeMethod<String>('saveToDownloads', {
+        'path': tempPath,
+        'fileName': fileName,
+        'mimeType': _mimeType(fileName, post.fileType),
+      });
+      return saved ?? fileName;
+    }
+
+    final location = await getSaveLocation(suggestedName: fileName);
+    if (location == null) return null;
+    await _dio.download(url, location.path, onReceiveProgress: onProgress);
+    return location.path;
+  }
+
+  String? _downloadUrl(Post post) {
+    for (final url in [post.sampleUrl, post.fileUrl, post.previewUrl]) {
+      if (url.trim().isNotEmpty) return url;
+    }
+    return null;
+  }
+
+  String _fileName(Post post, String url) {
+    final parsed = Uri.tryParse(url);
+    final fromUrl = parsed == null ? '' : p.basename(parsed.path);
+    if (fromUrl.contains('.') && fromUrl.length > 3) return fromUrl;
+    final extension = _extension(post.fileType);
+    return '${post.providerId}_${post.id}$extension';
+  }
+
+  String _extension(String fileType) {
+    final value = fileType.toLowerCase();
+    if (value.contains('webm')) return '.webm';
+    if (value.contains('mp4') || value.contains('video')) return '.mp4';
+    if (value.contains('gif')) return '.gif';
+    if (value.contains('png')) return '.png';
+    return '.jpg';
+  }
+
+  String _mimeType(String fileName, String fileType) {
+    final value = '${fileName.toLowerCase()} ${fileType.toLowerCase()}';
+    if (value.contains('.webm') || value.contains('webm')) return 'video/webm';
+    if (value.contains('.mp4') || value.contains('mp4')) return 'video/mp4';
+    if (value.contains('.gif') || value.contains('gif')) return 'image/gif';
+    if (value.contains('.png') || value.contains('png')) return 'image/png';
+    return 'image/jpeg';
+  }
+}