feat: video download

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/pages/setting/models/extra_settings.dart

@@ -25,15 +25,18 @@ import 'package:PiliPlus/pages/setting/widgets/select_dialog.dart';
 import 'package:PiliPlus/pages/setting/widgets/slide_dialog.dart';
 import 'package:PiliPlus/pages/video/reply/widgets/reply_item_grpc.dart';
 import 'package:PiliPlus/plugin/pl_player/controller.dart';
+import 'package:PiliPlus/services/download/download_service.dart';
 import 'package:PiliPlus/utils/accounts.dart';
-import 'package:PiliPlus/utils/cache_manage.dart';
+import 'package:PiliPlus/utils/cache_manager.dart';
 import 'package:PiliPlus/utils/feed_back.dart';
 import 'package:PiliPlus/utils/image_utils.dart';
+import 'package:PiliPlus/utils/path_utils.dart';
 import 'package:PiliPlus/utils/storage.dart';
 import 'package:PiliPlus/utils/storage_key.dart';
 import 'package:PiliPlus/utils/storage_pref.dart';
 import 'package:PiliPlus/utils/update.dart';
 import 'package:PiliPlus/utils/utils.dart';
+import 'package:file_picker/file_picker.dart';
 import 'package:flutter/foundation.dart' show kDebugMode;
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
@@ -43,7 +46,7 @@ import 'package:get/get.dart';
 import 'package:material_design_icons_flutter/material_design_icons_flutter.dart';
 
 List<SettingsModel> get extraSettings => [
-  if (Utils.isDesktop)
+  if (Utils.isDesktop) ...[
     SettingsModel(
       settingsType: SettingsType.sw1tch,
       title: '退出时最小化',
@@ -56,6 +59,63 @@ List<SettingsModel> get extraSettings => [
         } catch (_) {}
       },
     ),
+    SettingsModel(
+      settingsType: SettingsType.normal,
+      title: '缓存路径',
+      getSubtitle: () => downloadPath,
+      leading: const Icon(Icons.storage),
+      onTap: (setState) {
+        showDialog(
+          context: Get.context!,
+          builder: (context) {
+            return AlertDialog(
+              clipBehavior: Clip.hardEdge,
+              contentPadding: const EdgeInsets.symmetric(vertical: 12),
+              content: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  ListTile(
+                    onTap: () {
+                      Get.back();
+                      Utils.copyText(downloadPath);
+                    },
+                    dense: true,
+                    title: const Text('复制', style: TextStyle(fontSize: 14)),
+                  ),
+                  ListTile(
+                    onTap: () {
+                      Get.back();
+                      final defPath = defDownloadPath;
+                      if (downloadPath == defPath) return;
+                      downloadPath = defPath;
+                      setState();
+                      Get.find<DownloadService>().readDownloadList();
+                      GStorage.setting.delete(SettingBoxKey.downloadPath);
+                    },
+                    dense: true,
+                    title: const Text('重置', style: TextStyle(fontSize: 14)),
+                  ),
+                  ListTile(
+                    onTap: () async {
+                      Get.back();
+                      final path = await FilePicker.platform.getDirectoryPath();
+                      if (path == null || path == downloadPath) return;
+                      downloadPath = path;
+                      setState();
+                      Get.find<DownloadService>().readDownloadList();
+                      GStorage.setting.put(SettingBoxKey.downloadPath, path);
+                    },
+                    dense: true,
+                    title: const Text('设置新路径', style: TextStyle(fontSize: 14)),
+                  ),
+                ],
+              ),
+            );
+          },
+        );
+      },
+    ),
+  ],
   SettingsModel(
     settingsType: SettingsType.sw1tch,
     title: '空降助手',
@@ -1104,7 +1164,7 @@ List<SettingsModel> get extraSettings => [
     title: '最大缓存大小',
     getSubtitle: () {
       final num = Pref.maxCacheSize;
-      return '当前最大缓存大小: 「${num == 0 ? '无限' : CacheManage.formatSize(Pref.maxCacheSize)}」';
+      return '当前最大缓存大小: 「${num == 0 ? '无限' : CacheManager.formatSize(Pref.maxCacheSize)}」';
     },
     onTap: (setState) {
       showDialog(

lib/pages/setting/widgets/select_dialog.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 
 import 'package:PiliPlus/http/constants.dart';
+import 'package:PiliPlus/http/ua_type.dart';
 import 'package:PiliPlus/http/video.dart';
 import 'package:PiliPlus/models/common/video/cdn_type.dart';
 import 'package:PiliPlus/models/common/video/video_type.dart';
@@ -80,18 +81,19 @@ class CdnSelectDialog extends StatefulWidget {
 
 class _CdnSelectDialogState extends State<CdnSelectDialog> {
   late final List<ValueNotifier<String?>> _cdnResList;
-  late final CancelToken _cancelToken;
+  late final List<CancelToken?> _tokens;
   late final bool _cdnSpeedTest;
 
   @override
   void initState() {
     _cdnSpeedTest = Pref.cdnSpeedTest;
     if (_cdnSpeedTest) {
+      final length = CDNService.values.length;
       _cdnResList = List.generate(
-        CDNService.values.length,
+        length,
         (_) => ValueNotifier<String?>(null),
       );
-      _cancelToken = CancelToken();
+      _tokens = List.generate(length, (_) => CancelToken());
       _startSpeedTest();
     }
     super.initState();
@@ -100,10 +102,13 @@ class _CdnSelectDialogState extends State<CdnSelectDialog> {
   @override
   void dispose() {
     if (_cdnSpeedTest) {
-      _cancelToken.cancel();
+      for (final e in _tokens) {
+        e?.cancel();
+      }
       for (final notifier in _cdnResList) {
         notifier.dispose();
       }
+      _dio.close(force: true);
     }
     super.dispose();
   }
@@ -145,26 +150,38 @@ class _CdnSelectDialogState extends State<CdnSelectDialog> {
     }
   }
 
+  late final _dio = Dio()
+    ..options.headers = {
+      'user-agent': UaType.pc.ua,
+      'referer': HttpString.baseUrl,
+    };
+
   Future<void> _measureDownloadSpeed(String url, int index) async {
     const maxSize = 8 * 1024 * 1024;
     int downloaded = 0;
-    final dio = Dio()..options.headers['referer'] = HttpString.baseUrl;
+
+    final cancelToken = _tokens[index];
     final start = DateTime.now().microsecondsSinceEpoch;
 
-    await dio.get(
+    void onClose() {
+      cancelToken?.cancel();
+      _tokens[index] = null;
+    }
+
+    await _dio.get(
       url,
-      cancelToken: _cancelToken,
+      cancelToken: cancelToken,
       onReceiveProgress: (count, total) {
         if (!mounted) {
-          dio.close(force: true);
           return;
         }
+
         final duration = DateTime.now().microsecondsSinceEpoch - start;
 
         downloaded += count;
 
         if (duration > 15000000) {
-          dio.close(force: true);
+          onClose();
           if (downloaded > 0) {
             _updateSpeedResult(index, downloaded, duration);
             downloaded = 0;
@@ -172,7 +189,7 @@ class _CdnSelectDialogState extends State<CdnSelectDialog> {
             throw TimeoutException('测速超时');
           }
         } else if (downloaded >= maxSize) {
-          dio.close(force: true);
+          onClose();
           _updateSpeedResult(index, downloaded, duration);
           downloaded = 0;
         }
@@ -186,6 +203,9 @@ class _CdnSelectDialogState extends State<CdnSelectDialog> {
   }
 
   void _handleSpeedTestError(dynamic error, int index) {
+    _tokens
+      ..[index]?.cancel()
+      ..[index] = null;
     final item = _cdnResList[index];
     if (item.value != null) return;