feat: extension store (#1301)

ui/flutter/lib/api/api.dart

@@ -200,10 +200,10 @@ Future<void> putConfig(DownloaderConfig config) async {
   return _parse(() => _client.dio.put("api/v1/config", data: config), null);
 }
 
-Future<void> installExtension(InstallExtension installExtension) async {
-  return _parse(
+Future<String> installExtension(InstallExtension installExtension) async {
+  return _parse<String>(
       () => _client.dio.post("api/v1/extensions", data: installExtension),
-      null);
+      (data) => data as String);
 }
 
 Future<List<Extension>> getExtensions() async {

ui/flutter/lib/api/gopeed_site_api.dart

@@ -0,0 +1,55 @@
+import 'dart:convert';
+
+import 'package:dio/dio.dart';
+
+import 'api.dart';
+import 'model/store_extension.dart';
+
+class GopeedSiteApi {
+  GopeedSiteApi._();
+
+  static final instance = GopeedSiteApi._();
+
+  static const _host = 'gopeed.com';
+
+  Future<Map<String, dynamic>> getRelease() async {
+    final json = await _getJson('/api/release');
+    return json as Map<String, dynamic>;
+  }
+
+  Future<StoreExtensionPage> getExtensions({
+    int page = 1,
+    int limit = 20,
+    StoreExtensionSort sort = StoreExtensionSort.stars,
+    StoreSortOrder order = StoreSortOrder.desc,
+    String? query,
+  }) async {
+    final json = await _getJson('/api/extensions', queryParameters: {
+      'page': page.toString(),
+      'limit': limit.clamp(1, 100).toString(),
+      'sort': sort.name,
+      'order': order.name,
+      if (query != null && query.trim().isNotEmpty) 'q': query.trim(),
+    });
+    return StoreExtensionPage.fromJson(json as Map<String, dynamic>);
+  }
+
+  Future<void> reportExtensionInstall(String id) async {
+    final uri = Uri.https(_host, '/api/extensions/install');
+    await proxyRequest(
+      uri.toString(),
+      data: {'id': id},
+      options: Options(method: 'POST', contentType: Headers.jsonContentType),
+    );
+  }
+
+  Future<dynamic> _getJson(String path,
+      {Map<String, String>? queryParameters}) async {
+    final uri = Uri.https(_host, path, queryParameters);
+    final Response<String> response = await proxyRequest(uri.toString());
+    if (response.data == null || response.data!.isEmpty) {
+      throw Exception('Empty response from $uri');
+    }
+    return jsonDecode(response.data!);
+  }
+}

ui/flutter/lib/api/model/store_extension.dart

@@ -0,0 +1,149 @@
+import 'dart:convert';
+
+class StoreExtensionPage {
+  final List<StoreExtension> data;
+  final StorePagination pagination;
+
+  StoreExtensionPage({required this.data, required this.pagination});
+
+  factory StoreExtensionPage.fromJson(Map<String, dynamic> json) {
+    return StoreExtensionPage(
+      data: (json['data'] as List<dynamic>? ?? [])
+          .map((e) => StoreExtension.fromJson(e as Map<String, dynamic>))
+          .toList(),
+      pagination: StorePagination.fromJson(
+          json['pagination'] as Map<String, dynamic>? ?? {}),
+    );
+  }
+}
+
+class StorePagination {
+  final int page;
+  final int limit;
+  final int total;
+  final int totalPages;
+  final bool hasNext;
+  final bool hasPrev;
+
+  StorePagination({
+    required this.page,
+    required this.limit,
+    required this.total,
+    required this.totalPages,
+    required this.hasNext,
+    required this.hasPrev,
+  });
+
+  factory StorePagination.fromJson(Map<String, dynamic> json) {
+    return StorePagination(
+      page: (json['page'] as num?)?.toInt() ?? 1,
+      limit: (json['limit'] as num?)?.toInt() ?? 20,
+      total: (json['total'] as num?)?.toInt() ?? 0,
+      totalPages: (json['totalPages'] as num?)?.toInt() ?? 1,
+      hasNext: json['hasNext'] as bool? ?? false,
+      hasPrev: json['hasPrev'] as bool? ?? false,
+    );
+  }
+}
+
+class StoreExtension {
+  final String id;
+  final String repoFullName;
+  final String repoUrl;
+  final String? directory;
+  final String? commitSha;
+  final String name;
+  final String author;
+  final String title;
+  final String description;
+  final String? icon;
+  final String version;
+  final String? homepage;
+  final String? readme;
+  final int installCount;
+  final int stars;
+  final List<String> topics;
+  final DateTime? createdAt;
+  final DateTime? updatedAt;
+
+  StoreExtension({
+    required this.id,
+    required this.repoFullName,
+    required this.repoUrl,
+    this.directory,
+    this.commitSha,
+    required this.name,
+    required this.author,
+    required this.title,
+    required this.description,
+    this.icon,
+    required this.version,
+    this.homepage,
+    this.readme,
+    required this.installCount,
+    required this.stars,
+    required this.topics,
+    this.createdAt,
+    this.updatedAt,
+  });
+
+  factory StoreExtension.fromJson(Map<String, dynamic> json) {
+    return StoreExtension(
+      id: json['id'] as String? ?? '',
+      repoFullName: json['repoFullName'] as String? ?? '',
+      repoUrl: json['repoUrl'] as String? ?? '',
+      directory: json['directory'] as String?,
+      commitSha: json['commitSha'] as String?,
+      name: json['name'] as String? ?? '',
+      author: json['author'] as String? ?? '',
+      title: json['title'] as String? ?? '',
+      description: json['description'] as String? ?? '',
+      icon: json['icon'] as String?,
+      version: json['version'] as String? ?? '0.0.0',
+      homepage: json['homepage'] as String?,
+      readme: json['readme'] as String?,
+      installCount: (json['installCount'] as num?)?.toInt() ?? 0,
+      stars: (json['stars'] as num?)?.toInt() ?? 0,
+      topics: _parseTopics(json['topics']),
+      createdAt: _parseDate(json['createdAt']),
+      updatedAt: _parseDate(json['updatedAt']),
+    );
+  }
+
+  static List<String> _parseTopics(dynamic value) {
+    if (value is List) {
+      return value.map((e) => e.toString()).toList();
+    }
+    if (value is String && value.isNotEmpty) {
+      try {
+        final parsed = jsonDecode(value);
+        if (parsed is List) {
+          return parsed.map((e) => e.toString()).toList();
+        }
+      } catch (_) {}
+    }
+    return const [];
+  }
+
+  static DateTime? _parseDate(dynamic value) {
+    if (value == null) return null;
+    if (value is int) {
+      return DateTime.fromMillisecondsSinceEpoch(value);
+    }
+    if (value is String && value.isNotEmpty) {
+      return DateTime.tryParse(value);
+    }
+    return null;
+  }
+}
+
+enum StoreExtensionSort {
+  stars,
+  installs,
+  updated,
+}
+
+enum StoreSortOrder {
+  asc,
+  desc,
+}