✨ Search with tag & category

lib/providers/content/post.dart

@@ -7,10 +7,13 @@ class PostProvider extends GetConnect {
     httpClient.baseUrl = ServiceFinder.services['interactive'];
   }
 
-  Future<Response> listFeed(int page, {int? realm}) async {
+  Future<Response> listFeed(int page,
+      {int? realm, String? tag, category}) async {
     final queries = [
       'take=${10}',
       'offset=$page',
+      if (tag != null) 'tag=$tag',
+      if (category != null) 'category=$category',
       if (realm != null) 'realmId=$realm',
     ];
     final resp = await get('/api/feed?${queries.join('&')}');

lib/router.dart

@@ -8,6 +8,7 @@ import 'package:solian/screens/channel/channel_chat.dart';
 import 'package:solian/screens/channel/channel_detail.dart';
 import 'package:solian/screens/channel/channel_organize.dart';
 import 'package:solian/screens/chat.dart';
+import 'package:solian/screens/feed_search.dart';
 import 'package:solian/screens/posts/post_detail.dart';
 import 'package:solian/screens/realms.dart';
 import 'package:solian/screens/realms/realm_detail.dart';
@@ -47,6 +48,17 @@ abstract class AppRouter {
         name: 'feed',
         builder: (context, state) => const FeedScreen(),
       ),
+      GoRoute(
+        path: '/feed/search',
+        name: 'feedSearch',
+        builder: (context, state) => TitleShell(
+          state: state,
+          child: FeedSearchScreen(
+            tag: state.uri.queryParameters['tag'],
+            category: state.uri.queryParameters['category'],
+          ),
+        ),
+      ),
       GoRoute(
         path: '/posts/view/:alias',
         name: 'postDetail',

lib/screens/feed_search.dart

@@ -0,0 +1,88 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
+import 'package:solian/models/feed.dart';
+import 'package:solian/models/pagination.dart';
+import 'package:solian/providers/content/post.dart';
+import 'package:solian/widgets/posts/feed_list.dart';
+
+class FeedSearchScreen extends StatefulWidget {
+  final String? tag;
+  final String? category;
+
+  const FeedSearchScreen({super.key, this.tag, this.category});
+
+  @override
+  State<FeedSearchScreen> createState() => _FeedSearchScreenState();
+}
+
+class _FeedSearchScreenState extends State<FeedSearchScreen> {
+  final PagingController<int, FeedRecord> _pagingController =
+      PagingController(firstPageKey: 0);
+
+  getPosts(int pageKey) async {
+    final PostProvider provider = Get.find();
+
+    Response resp;
+    try {
+      resp = await provider.listFeed(
+        pageKey,
+        tag: widget.tag,
+        category: widget.category,
+      );
+    } catch (e) {
+      _pagingController.error = e;
+      return;
+    }
+
+    final PaginationResult result = PaginationResult.fromJson(resp.body);
+    final parsed = result.data?.map((e) => FeedRecord.fromJson(e)).toList();
+    if (parsed != null && parsed.length >= 10) {
+      _pagingController.appendPage(parsed, pageKey + parsed.length);
+    } else if (parsed != null) {
+      _pagingController.appendLastPage(parsed);
+    }
+  }
+
+  @override
+  void initState() {
+    super.initState();
+
+    _pagingController.addPageRequestListener(getPosts);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Material(
+        color: Theme.of(context).colorScheme.surface,
+        child: Column(
+          children: [
+            if (widget.tag != null)
+              ListTile(
+                leading: const Icon(Icons.label),
+                tileColor: Theme.of(context).colorScheme.surfaceContainer,
+                title: Text('feedSearchWithTag'.trParams({'key': widget.tag!})),
+              ),
+            if (widget.category != null)
+              ListTile(
+                leading: const Icon(Icons.category),
+                tileColor: Theme.of(context).colorScheme.surfaceContainer,
+                title: Text('feedSearchWithCategory'.trParams({'key': widget.category!})),
+              ),
+            Expanded(
+              child: RefreshIndicator(
+                onRefresh: () => Future.sync(() => _pagingController.refresh()),
+                child: CustomScrollView(
+                  slivers: [
+                    FeedListWidget(controller: _pagingController),
+                  ],
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/translations.dart

@@ -11,6 +11,9 @@ class SolianMessages extends Translations {
           'reset': 'Reset',
           'page': 'Page',
           'feed': 'Feed',
+          'feedSearch': 'Search Feed',
+          'feedSearchWithTag': 'Searching with tag #@key',
+          'feedSearchWithCategory': 'Searching in category @category',
           'chat': 'Chat',
           'apply': 'Apply',
           'cancel': 'Cancel',
@@ -265,6 +268,9 @@ class SolianMessages extends Translations {
           'delete': '删除',
           'page': '页面',
           'feed': '资讯',
+          'feedSearch': '搜索资讯',
+          'feedSearchWithTag': '检索带有 #@key 标签的资讯',
+          'feedSearchWithCategory': '检索位于分类 @category 的资讯',
           'chat': '聊天',
           'apply': '应用',
           'search': '搜索',

lib/widgets/posts/feed_tags.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:solian/models/feed.dart';
+import 'package:solian/router.dart';
 
 class FeedTagsList extends StatelessWidget {
   final List<Tag> tags;
@@ -36,7 +37,11 @@ class FeedTagsList extends StatelessWidget {
                   ),
                 ),
               ),
-              onTap: () {},
+              onTap: () {
+                AppRouter.instance.pushNamed('feedSearch', queryParameters: {
+                  'tag': x.alias,
+                });
+              },
             ),
           )
           .toList(),