更新数据库

apps/im_app/lib/features/chat/presentation/chat_db_test_view_model.dart

@@ -0,0 +1,119 @@
+import 'dart:math';
+
+import 'package:drift/drift.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:im_app/app/di/db_provider.dart';
+import 'package:im_app/data/local/drift/app_database.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'chat_db_test_view_model.g.dart';
+
+class TestResult {
+  final String title;
+  final String subtitle;
+  final String duration;
+
+  TestResult({
+    required this.title,
+    required this.subtitle,
+    required this.duration,
+  });
+}
+
+class ChatDbTestState {
+  final bool testStarted;
+  final List<TestResult> testResults;
+  final String currentState;
+
+  const ChatDbTestState({
+    this.testStarted = false,
+    this.testResults = const [],
+    this.currentState = '',
+  });
+
+  ChatDbTestState copyWith({
+    bool? testStarted,
+    List<TestResult>? testResults,
+    String? currentState,
+  }) => ChatDbTestState(
+    testStarted: testStarted ?? this.testStarted,
+    testResults: testResults ?? this.testResults,
+    currentState: currentState ?? this.currentState,
+  );
+}
+
+@riverpod
+class ChatDbTestViewModel extends _$ChatDbTestViewModel {
+
+  @override
+  ChatDbTestState build() {
+    // 这里就是 onInit
+    final List<TestResult> testResults = List.generate(
+      1000,
+          (i) => TestResult(
+        title: '用户 ${Random().nextInt(9999)}',
+        subtitle: 'uid: ${Random().nextInt(999999)}',
+        duration: '${Random().nextInt(500)}ms',
+      ),
+    );
+    return ChatDbTestState(testResults: testResults);
+  }
+
+  // ── 导航（Demo 按钮，正式开发后随 UI 一并替换） ──────────────────────────
+
+  /// 开始测试
+  void startDBTest(BuildContext context) {
+    state = state.copyWith(testStarted: true, currentState: '开始测试');
+    _testDBInsert();
+  }
+
+  /// 结束测试
+  void stopDBTest(BuildContext context) {
+    state = state.copyWith(testStarted: false, currentState: '结束测试');
+  }
+
+  Future<void> _testDBInsert() async {
+    final db = ref.read(storageSdkProvider);
+    const count = 10000;
+    const chunkSize = 50;
+    final stopwatch = Stopwatch()..start();
+
+    debugPrint('开始测试: $count 条，每批 $chunkSize 条');
+
+    int completed = 0;
+
+    for (var i = 0; i < count; i += chunkSize) {
+      final chunk = List.generate(
+        chunkSize.clamp(0, count - i),
+            (j) => UsersCompanion.insert(
+          uid: Value(i + j),
+          nickname: Value('User ${i + j}'),
+        ),
+      );
+
+      await db.batchInsertOrReplace<User>(chunk);
+      completed += chunk.length;
+
+      // 让出主线程
+      await Future.delayed(Duration.zero);
+
+      debugPrint('已完成: $completed / $count (${stopwatch.elapsedMilliseconds}ms)');
+
+      // 更新 UI 状态
+      if (ref.mounted) {
+        state = state.copyWith(
+          currentState: '已插入 $completed / $count 条',
+        );
+      }
+    }
+
+    debugPrint('全部完成: ${stopwatch.elapsedMilliseconds}ms');
+    if (ref.mounted) {
+      state = state.copyWith(
+        testStarted: false,
+        currentState: '完成！共 $count 条，耗时 ${stopwatch.elapsedMilliseconds}ms',
+      );
+    }
+  }
+}

apps/im_app/lib/features/chat/presentation/chat_view_model.dart

@@ -55,6 +55,11 @@ class ChatViewModel extends _$ChatViewModel {
     context.go(AppRouteName.settings.path);
   }
 
+  /// 测试数据库性能
+  void goToDatabaseTest(BuildContext context) {
+    context.push(AppRouteName.chatDBTest.path);
+  }
+
   // ── 业务 ─────────────────────────────────────────────────────────────────
 
   /// 退出登录

apps/im_app/lib/features/chat/view/chat_db_test_page.dart

@@ -0,0 +1,71 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:im_app/features/chat/presentation/chat_db_test_view_model.dart';
+
+import '../../../core/ui/components/app_button.dart';
+import '../presentation/chat_view_model.dart';
+
+/// 聊天页（Demo 按钮）
+///
+/// 包含五个演示按钮，覆盖 go_router 的常见导航场景：
+/// - 「切换 Tab」            — go，替换历史，不可返回
+/// - 「有参 push（extra）」  — push + extra（Dart Record），可返回
+/// - 「有参 push（路径参数）」— push + URL 内嵌 id，可返回
+/// - 「无参 push」           — push，可返回
+/// - 「退出登录」            — 守卫自动重定向到 /login
+///
+/// 所有操作通过 [ChatViewModel] 处理，View 不直接调用路由。
+/// 正式开发后替换为会话列表，按钮相关代码一并清除。
+class ChatDbTestPage extends ConsumerWidget {
+  const ChatDbTestPage({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final vm = ref.read(chatDbTestViewModelProvider.notifier);
+    final state = ref.watch(chatDbTestViewModelProvider);
+
+    return Scaffold(
+      appBar: AppBar(title: const Text('测试数据库'), ),
+      body: Column(
+        mainAxisSize: MainAxisSize.max,
+        spacing: 16,
+        children: [
+          SizedBox(height: 4),
+          Padding(
+            padding: EdgeInsetsGeometry.symmetric(horizontal: 8),
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.spaceBetween,
+              children: [
+                AppButton.inverse(
+                  label: state.testStarted ? '结束' : '开始',
+                  onPressed: () => state.testStarted ? vm.stopDBTest(context) : vm.startDBTest(context),
+                ),
+                SizedBox(width: 8),
+                Expanded(
+                  child: Text(
+                    state.currentState,
+                    textAlign: TextAlign.end,
+                  ),
+                )
+              ],
+            )
+          ),
+          Expanded(
+            child: ListView.builder(
+              itemCount: state.testResults.length,
+              itemBuilder: (context, index) {
+                final result = state.testResults[index];
+                return ListTile(
+                  titleAlignment: ListTileTitleAlignment.center,
+                  title: Text(result.title),
+                  subtitle: Text(result.subtitle),
+                  // trailing: Text(result.duration),
+                );
+              },
+            ),
+          )
+        ],
+      ),
+    );
+  }
+}

apps/im_app/lib/features/chat/view/chat_page.dart

@@ -54,6 +54,10 @@ class ChatPage extends ConsumerWidget {
               label: '无参 go',
               onPressed: () => vm.goToSettings(context),
             ),
+            AppButton.inverse(
+              label: '测试数据库性能',
+              onPressed: () => vm.goToDatabaseTest(context),
+            ),
             AppButton.secondary(
               label: '退出登录',
               fullWidth: false,