import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';

import 'package:qiangbao_accounting/models/bill.dart';
import 'package:qiangbao_accounting/models/note.dart';
import 'package:qiangbao_accounting/models/statistics_response.dart';
import 'package:qiangbao_accounting/pages/assistant/assistant_page.dart';
import 'package:qiangbao_accounting/pages/bill/bill_home_page.dart';
import 'package:qiangbao_accounting/pages/home/dashboard_page.dart';
import 'package:qiangbao_accounting/providers/bill_provider.dart';
import 'package:qiangbao_accounting/providers/note_provider.dart';

/// 临时校验：改造后的两个页面在窄屏 / 常见机 / 大屏下都不溢出。
void main() {
  // 故意用会撑宽的数字，探一探摘要位窄不窄
  final stats = StatisticsResponse(
    totalIncome: 123456.78,
    totalExpense: 98765.43,
    balance: 24691.35,
    categoryStatistics: const [],
    dailyStatistics: const [],
  );
  final page = NotePage(
    items: const [
      NoteListItem(
        id: 1,
        folderId: null,
        title: 'MySQL 主从复制搭建教程',
        summary: '',
        tags: [],
        pinned: false,
        updateTime: '2026-09-23 03:36',
      ),
    ],
    total: 128,
    hasMore: false,
  );

  const sizes = [
    ('iPhone SE 窄屏', Size(320, 568)),
    ('常见安卓机', Size(393, 873)),
    ('大屏', Size(480, 1000)),
  ];

  void useSize(WidgetTester tester, Size size) {
    tester.view.physicalSize = size * 3;
    tester.view.devicePixelRatio = 3.0;
    addTearDown(tester.view.reset);
  }

  for (final (label, size) in sizes) {
    testWidgets('仪表盘 $label 不溢出', (tester) async {
      useSize(tester, size);
      await tester.pumpWidget(
        ProviderScope(
          overrides: [
            monthlyStatisticsProvider.overrideWith((ref, month) async => stats),
            noteOverviewProvider.overrideWith((ref) async => page),
          ],
          child: const MaterialApp(home: DashboardPage()),
        ),
      );
      await tester.pumpAndSettle();

      // 先确认假数据真渲染出来了 —— 否则这个测试会「因为卡片是空的」而假通过
      expect(find.text('128 篇'), findsOneWidget);
      expect(find.textContaining('98765.43'), findsWidgets);

      expect(tester.takeException(), isNull);
    });

    testWidgets('记账首页（push 进来，带返回箭头）$label 不溢出', (tester) async {
      useSize(tester, size);
      await tester.pumpWidget(
        ProviderScope(
          overrides: [
            monthlyStatisticsProvider.overrideWith((ref, month) async => stats),
            billsProvider.overrideWith((ref, month) async => <Bill>[]),
          ],
          child: MaterialApp(
            home: Builder(
              builder: (ctx) => Scaffold(
                body: Center(
                  child: TextButton(
                    onPressed: () => Navigator.of(ctx).push(
                      MaterialPageRoute(builder: (_) => const BillHomePage()),
                    ),
                    child: const Text('进入'),
                  ),
                ),
              ),
            ),
          ),
        ),
      );

      // 真的 push 一次，canPop() 才是 true，才能测到「返回箭头 + 标题 +
      // 统计图标 + 月份切换」同时挤在一行的最坏情况
      await tester.tap(find.text('进入'));
      await tester.pumpAndSettle();

      expect(find.text('我的账单'), findsOneWidget);
      expect(tester.takeException(), isNull);
    });

    testWidgets('助手页（push 进来）$label 不溢出', (tester) async {
      useSize(tester, size);
      await tester.pumpWidget(
        ProviderScope(
          child: MaterialApp(
            home: Builder(
              builder: (ctx) => Scaffold(
                body: Center(
                  child: TextButton(
                    onPressed: () => Navigator.of(ctx).push(
                      MaterialPageRoute(builder: (_) => const AssistantPage()),
                    ),
                    child: const Text('进入'),
                  ),
                ),
              ),
            ),
          ),
        ),
      );

      await tester.tap(find.text('进入'));
      await tester.pumpAndSettle();

      // 空状态：标题 + 引导问题 + 底部输入框
      expect(find.text('问我点什么'), findsOneWidget);
      expect(find.text('这个月花了多少钱？'), findsOneWidget);

      expect(tester.takeException(), isNull);
    });
  }
}