import 'dart:async';
import 'dart:convert';

import 'package:flutter_test/flutter_test.dart';
import 'package:webview_flutter_platform_interface/webview_flutter_platform_interface.dart';
import 'package:hepan_everyday/domain/school_term.dart';
import 'package:hepan_everyday/features/school/school_browser.dart';
import 'package:hepan_everyday/features/school/school_session.dart';
import 'package:hepan_everyday/features/school/undergraduate/session.dart';
import 'package:hepan_everyday/services/diagnostic_log.dart';

import '../support/fake_school_web.dart';

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();
  test('both school entries wait for browser compatibility settings before loading', () async {
    for (final undergraduate in [false, true]) {
      final platform = FakeSchoolPlatform();
      WebViewPlatform.instance = platform;
      final ready = Completer<SchoolBrowserInfo>();
      final graduate = SchoolSession(configureBrowser: (_, _) => ready.future);
      final under = UndergraduateSession(
        configureBrowser: (_, _) => ready.future,
      );
      addTearDown(graduate.dispose);
      addTearDown(under.dispose);
      final opening = undergraduate
          ? under.openTimetable()
          : graduate.openTimetable(term: SchoolTerm(73));
      await flushSchoolEvents();
      expect(platform.web.loads, isEmpty);
      ready.complete(const SchoolBrowserInfo(chromiumVersion: '155.0.1.2'));
      await opening;
      expect(platform.web.loads, hasLength(1));
      expect(
        undergraduate ? under.browserVersion : graduate.browserVersion,
        '155.0.1.2',
      );
    }
  });
  test(
    'cancel while browser settings initialize never starts a late navigation',
    () async {
      final platform = FakeSchoolPlatform();
      WebViewPlatform.instance = platform;
      final ready = Completer<SchoolBrowserInfo>();
      final session = UndergraduateSession(
        configureBrowser: (_, _) => ready.future,
      );
      addTearDown(session.dispose);
      final opening = session.openTimetable();
      await flushSchoolEvents();
      session.setReadingActive(false);
      ready.complete(const SchoolBrowserInfo());
      await opening;
      expect(platform.web.loads, isEmpty);
    },
  );
  test('subresource failures remain diagnostic without aborting the school session', () async {
    final platform = FakeSchoolPlatform();
    WebViewPlatform.instance = platform;
    final session = UndergraduateSession();
    addTearDown(session.dispose);
    await session.openTimetable();
    platform.delegate.resourceError(
      WebResourceError(
        errorCode: -105,
        description: 'PRIVATE_COOKIE',
        isForMainFrame: false,
        url: 'http://eams.uestc.edu.cn/eams/scripts/component.js?ticket=PRIVATE_TICKET',
      ),
    );
    await flushSchoolEvents();
    final log = utf8.decode(await DiagnosticLog.instance.export());
    expect(log, contains('school_resource_failed'));
    expect(log, contains('"page":"script"'));
    expect(log, contains('"status":-105'));
    expect(log, isNot(contains('PRIVATE_COOKIE')));
    expect(log, isNot(contains('PRIVATE_TICKET')));
    expect(session.message, isNot(contains('未完成')));
  });
}