photo-live/apps/mobile/test/pages/share_qr_page_test.dart

/// 相册分享页 widget 测试（UI-03 §4 页面 19）。
///
/// 覆盖：全屏页结构（标题/真实封面占位/名称/日期地点/二维码/扫码说明/
/// 可选中链接）、链接携带正确相册 token 与 `?lang=` 语言参数、Copy link
/// 主操作写剪贴板 + 已复制提示、Open in browser 次操作经注入替身启动器
/// 打开并退出页面、未公开相册显示「该链接目前无法公开浏览」琥珀提示
/// （公开相册不显示）、海报弹层内「中文/English」切换（默认跟 App 语言，
/// 提示文案/相册标题/二维码 lang 随切换，弹层 chrome 仍跟 App 语言）、
/// 下载海报反馈在弹层内可见（成功=按钮翻成功态自动复原；失败=弹层内
/// 红字可重试；SnackBar 在模态弹层下不可见，不得作为反馈通道）。
library;

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:photo_live/features/albums/models.dart';
import 'package:photo_live/l10n/app_localizations.dart';
import 'package:photo_live/pages/share_qr_dialog.dart';
import 'package:qr_flutter/qr_flutter.dart';

import '../helpers/fakes.dart';

void main() {
  const token = 'sharetoken000000000001';

  Future<void> pumpPage(
    WidgetTester tester, {
    bool publicEnabled = true,
    UrlLauncher? launcher,
    PosterSaver? saver,
  }) async {
    await tester.pumpWidget(
      ProviderScope(
        overrides: [
          if (launcher != null)
            urlLauncherProvider.overrideWith((ref) => launcher),
          if (saver != null)
            posterSaverProvider.overrideWith((ref) => saver),
        ],
        child: MaterialApp(
          localizationsDelegates: AppLocalizations.localizationsDelegates,
          supportedLocales: AppLocalizations.supportedLocales,
          home: ShareQrPage(
            album: Album.fromJson(
              albumJson(publicToken: token, publicEnabled: publicEnabled),
            ),
          ),
        ),
      ),
    );
    await tester.pumpAndSettle();
  }

  testWidgets('全屏页结构：标题/封面/名称/日期地点/二维码/扫码说明/链接', (
    tester,
  ) async {
    await pumpPage(tester);

    // 全屏页 AppBar 标题（不再是 Dialog）。
    expect(find.byType(AppBar), findsOneWidget);
    expect(find.text('Share album'), findsOneWidget);
    // 真实封面位（无封面 → 同尺寸中性占位，不破图不空行）。
    expect(find.byIcon(Icons.image_outlined), findsOneWidget);
    // 名称与日期地点（en 回退：Opening Gala；上海墙钟 14:30）。
    expect(find.text('Opening Gala'), findsOneWidget);
    expect(
      find.text('2026/9/18 · 大宴会厅'),
      findsOneWidget,
      reason: '开始时间（相册时区；结束未定不伪造区间）+ 场地（展示回退链）',
    );
    // UI06 三方式：系统分享（默认）/ 生成二维码海报 / 复制链接。
    expect(find.text('Share to...'), findsOneWidget);
    expect(find.text('Generate QR poster'), findsOneWidget);
    expect(find.text('Copy link'), findsOneWidget);
    // 可选中链接（二维码与复制共用同一 URL）。
    final url = 'http://10.0.2.2:5175/a/$token?lang=en';
    expect(
      tester.widget<SelectableText>(find.byType(SelectableText)).data,
      url,
      reason: '链接文本（?lang= 随 App 语言）',
    );

    // 点「生成二维码海报」→ 弹层：标题/时间/地址/二维码/下载按钮。
    await tester.tap(find.text('Generate QR poster'));
    await tester.pumpAndSettle();
    expect(find.byType(QrImageView), findsOneWidget);
    expect(find.text('Scan to view photos'), findsOneWidget);
    expect(find.text('Download poster image'), findsOneWidget);
    // UI06：海报日期粒度（无时间）。
    expect(find.text('2026/9/18'), findsOneWidget);
  });

  testWidgets('海报语言切换：默认跟 App 语言，切中文后提示/标题/二维码随之', (
    tester,
  ) async {
    await pumpPage(tester);
    await tester.tap(find.text('Generate QR poster'));
    await tester.pumpAndSettle();

    // 默认 English 档（App 语言 en）：英文提示 + lang=en 的二维码
    // （qr_flutter 4.1 无公开 data getter，经 semanticsLabel 断言编码内容）。
    expect(find.text('Scan to view photos'), findsOneWidget);
    expect(
      tester.widget<QrImageView>(find.byType(QrImageView)).semanticsLabel,
      'http://10.0.2.2:5175/a/$token?lang=en',
      reason: '二维码 lang 跟海报语言（默认=App 语言前缀）',
    );
    // 两档切换（语言名以自身语言书写，与语言选择面板同约定）。
    expect(find.text('中文'), findsOneWidget);
    expect(find.text('English'), findsOneWidget);
    // 英文档标题取英文翻译（中文翻译不出现在海报上）。
    expect(find.text('开幕晚宴'), findsNothing);

    // 切「中文」：提示/标题换中文、二维码 lang=zh-CN。
    await tester.tap(find.text('中文'));
    await tester.pumpAndSettle();
    expect(find.text('扫码查看照片'), findsOneWidget);
    expect(find.text('Scan to view photos'), findsNothing);
    expect(find.text('开幕晚宴'), findsOneWidget);
    expect(
      tester.widget<QrImageView>(find.byType(QrImageView)).semanticsLabel,
      'http://10.0.2.2:5175/a/$token?lang=zh-CN',
    );
    // 弹层 chrome（标题/下载按钮）不随海报语言切换，仍跟 App 语言。
    expect(find.text('Download poster image'), findsOneWidget);
  });

  testWidgets('下载海报成功：按钮翻成功态并自动复原，全程无 SnackBar', (
    tester,
  ) async {
    await pumpPage(tester, saver: (_) async {});
    await tester.tap(find.text('Generate QR poster'));
    await tester.pumpAndSettle();
    await tester.ensureVisible(find.text('Download poster image'));
    await tester.pumpAndSettle();

    await tester.tap(find.text('Download poster image'));
    await tester.pumpAndSettle();

    // 反馈必须在弹层内可见（SnackBar 被模态弹层遮挡，禁用）。
    expect(find.byType(SnackBar), findsNothing);
    expect(
      find.descendant(
        of: find.byType(BottomSheet),
        matching: find.text('Poster saved to gallery'),
      ),
      findsOneWidget,
      reason: '成功反馈显示在下载按钮上（弹层内）',
    );

    // 约 2.5s 后自动复原，可再次下载（配合语言切换存第二张）。
    await tester.pump(const Duration(seconds: 3));
    await tester.pumpAndSettle();
    expect(find.text('Poster saved to gallery'), findsNothing);
    expect(find.text('Download poster image'), findsOneWidget);
  });

  testWidgets('下载海报失败：弹层内红字提示且可重试', (tester) async {
    var calls = 0;
    await pumpPage(
      tester,
      saver: (_) async {
        calls++;
        throw StateError('save failed');
      },
    );
    await tester.tap(find.text('Generate QR poster'));
    await tester.pumpAndSettle();
    await tester.ensureVisible(find.text('Download poster image'));
    await tester.pumpAndSettle();

    await tester.tap(find.text('Download poster image'));
    await tester.pumpAndSettle();

    expect(find.byType(SnackBar), findsNothing);
    expect(
      find.descendant(
        of: find.byType(BottomSheet),
        matching: find.text('Failed to save poster'),
      ),
      findsOneWidget,
      reason: '失败反馈在弹层内（对齐隐藏照片弹层的面板内提示模式）',
    );
    // 按钮复位可重试。
    expect(find.text('Download poster image'), findsOneWidget);

    await tester.ensureVisible(find.text('Download poster image'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Download poster image'));
    await tester.pumpAndSettle();
    expect(calls, 2, reason: '失败后可重试');
  });

  testWidgets('Copy link（主操作）→ 剪贴板收到带 lang 的 URL + 已复制提示',
      (tester) async {
    final clipboardCalls = <MethodCall>[];
    tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(
      SystemChannels.platform,
      (call) async {
        clipboardCalls.add(call);
        return null;
      },
    );

    await pumpPage(tester);
    await tester.ensureVisible(find.text('Copy link'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Copy link'));
    await tester.pumpAndSettle();

    expect(
      clipboardCalls.any(
        (c) =>
            c.method == 'Clipboard.setData' &&
            (c.arguments as Map<String, dynamic>)['text'] ==
                'http://10.0.2.2:5175/a/$token?lang=en',
      ),
      isTrue,
    );
    expect(find.text('Copied'), findsOneWidget);
  });

  testWidgets('Open in browser（次操作）→ 启动器收到 URL + 退出分享页',
      (tester) async {
    final launchedUrls = <String>[];
    await pumpPage(
      tester,
      launcher: (url) async {
        launchedUrls.add(url);
        return true;
      },
    );

    await tester.ensureVisible(find.text('Open in browser'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Open in browser'));
    await tester.pumpAndSettle();

    expect(launchedUrls, ['http://10.0.2.2:5175/a/$token?lang=en']);
    expect(find.byType(ShareQrPage), findsNothing, reason: '打开成功后退出');
  });

  testWidgets('未公开相册：琥珀提示链接不可公开浏览；公开相册不提示',
      (tester) async {
    await pumpPage(tester, publicEnabled: false);
    expect(
      find.text('This link is not publicly accessible yet'),
      findsOneWidget,
    );

    await pumpPage(tester, publicEnabled: true);
    expect(
      find.text('This link is not publicly accessible yet'),
      findsNothing,
      reason: '公开相册不得显示不可浏览提示',
    );
  });
}