import 'dart:convert';

import 'package:flutter_test/flutter_test.dart';
import 'package:hepan_everyday/features/school/undergraduate/navigation_policy.dart';
import 'package:hepan_everyday/features/school/undergraduate/page_probe.dart';

void main() {
  final uri = Uri.parse('https://eams.uestc.edu.cn/eams/');
  test(
    'navigation and capture distinguish official data from authentication',
    () {
      for (final host in [
        'eams.uestc.edu.cn',
        'idas.uestc.edu.cn',
        'eportal.uestc.edu.cn',
      ]) {
        expect(
          UndergraduateNavigationPolicy.canNavigate(
            Uri.https(host, '/'),
            isMainFrame: true,
          ),
          isTrue,
        );
      }
      for (final value in [
        'https://eams.uestc.edu.cn.attacker.test/eams/',
        'https://eams.uestc.edu.cn:444/eams/',
        'https://user@eams.uestc.edu.cn/eams/',
        'http://eams.uestc.edu.cn/eams/',
      ]) {
        expect(
          UndergraduateNavigationPolicy.canNavigate(
            Uri.parse(value),
            isMainFrame: true,
          ),
          isFalse,
        );
      }
      expect(UndergraduateNavigationPolicy.isDataPage(uri), isTrue);
      expect(
        UndergraduateNavigationPolicy.isDataPage(
          Uri.parse('https://idas.uestc.edu.cn/authserver/login'),
        ),
        isFalse,
      );
      expect(
        UndergraduateNavigationPolicy.secureIdentityRedirect(
          Uri.parse('http://idas.uestc.edu.cn/authserver/login?service=abc'),
        ).toString(),
        'https://idas.uestc.edu.cn/authserver/login?service=abc',
      );
    },
  );
  test(
    'page evidence rejects changed URLs cross origins and aggregate oversize',
    () {
      Map<String, dynamic> value() => {
        'topUrl': uri.toString(),
        'authenticated': true,
        'pages': [
          {'kind': 'timetable', 'url': uri.toString(), 'html': 'table'},
        ],
      };
      expect(
        UndergraduatePageEvidence.decode(jsonEncode(value()), uri).pages,
        hasLength(1),
      );
      expect(
        () => UndergraduatePageEvidence.decode({
          ...value(),
          'topUrl': 'https://other.test',
        }, uri),
        throwsFormatException,
      );
      final cross = value();
      (cross['pages'] as List).single['url'] = 'https://idas.uestc.edu.cn/';
      expect(
        () => UndergraduatePageEvidence.decode(cross, uri),
        throwsFormatException,
      );
      final large = value();
      (large['pages'] as List).single['html'] = '汉' * 800000;
      expect(
        () => UndergraduatePageEvidence.decode(large, uri),
        throwsFormatException,
      );
      expect(
        () => UndergraduatePageEvidence.decode({
          ...value(),
          'error': 'capture_limit',
        }, uri),
        throwsFormatException,
      );
    },
  );
}