import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:im_webview_app/config/app_config.dart';
import 'package:im_webview_app/main.dart';

void main() {
  test('creates the WebView shell app widget', () {
    expect(
      const ImWebViewApp(shellBranding: ShellBranding.fallback),
      isA<Widget>(),
    );
  });

  test('loads the configured H5 root URL without shell URL params', () {
    const logo = 'data:image/png;base64,abc+/=';

    final uri = Uri.parse(
      AppConfig.homeUrl(appName: 'Shell Test', appLogo: logo),
    );

    expect(uri.scheme, 'https');
    expect(uri.host, 'h5-test.imharry.work');
    expect(uri.path, '/');
    expect(uri.queryParameters.containsKey('flutter_shell'), isFalse);
    expect(uri.queryParameters.containsKey('shell_app_name'), isFalse);
    expect(uri.queryParameters.containsKey('shell_app_logo'), isFalse);
    expect(uri.queryParameters.containsKey('shell_cache_bust'), isFalse);
    expect(uri.toString(), isNot(contains('%25')));
    expect(Uri.splitQueryString(uri.fragment).containsKey('shell_app_logo'),
        isFalse);
  });

  test('exposes configured H5 URLs as Flutter shell lines', () {
    final lines = AppConfig.h5Lines;

    expect(lines, isNotEmpty);
    expect(lines.first.label, '线路1');
    expect(lines.first.url, AppConfig.homeUrl(lineIndex: 0));
    expect(Uri.parse(lines.first.url).host, 'h5-test.imharry.work');
  });

  test('falls back to the first H5 line for invalid line indexes', () {
    expect(AppConfig.homeUrl(lineIndex: -1), AppConfig.h5Lines.first.url);
    expect(AppConfig.homeUrl(lineIndex: 99), AppConfig.h5Lines.first.url);
  });

  test('matches runtime URLs back to their Flutter shell line', () {
    final lineUrl = AppConfig.h5Lines.first.url;

    expect(AppConfig.lineIndexForUrl('${lineUrl}login'), 0);
  });

  test('refreshes an H5 route URL without adding branding to the URL', () {
    final uri = Uri.parse(
      AppConfig.withFreshShellParams(
        'https://h5-test.imharry.work/login?from=runtime&shell_app_name=Old'
        '&flutter_shell=1&shell_cache_bust=1#shell_app_logo=old',
      ),
    );

    expect(uri.path, '/login');
    expect(uri.queryParameters['from'], 'runtime');
    expect(uri.queryParameters.containsKey('flutter_shell'), isFalse);
    expect(uri.queryParameters.containsKey('shell_app_name'), isFalse);
    expect(uri.queryParameters.containsKey('shell_app_logo'), isFalse);
    expect(uri.queryParameters.containsKey('shell_cache_bust'), isFalse);
    expect(Uri.splitQueryString(uri.fragment).containsKey('shell_app_logo'),
        isFalse);
  });

  test('keeps independent non-legacy H5 hosts when removing shell params', () {
    final uri = Uri.parse(
      AppConfig.canonicalizeMainFrameUrl(
        'https://line-two.example/login?shell_app_name=Old'
        '&flutter_shell=1#shell_app_logo=old',
      ),
    );

    expect(uri.host, 'line-two.example');
    expect(uri.path, '/login');
    expect(uri.queryParameters.containsKey('shell_app_name'), isFalse);
    expect(uri.queryParameters.containsKey('flutter_shell'), isFalse);
    expect(Uri.splitQueryString(uri.fragment).containsKey('shell_app_logo'),
        isFalse);
  });

  test('rewrites legacy H5 host main-frame URLs to the canonical host', () {
    final uri = Uri.parse(
      AppConfig.canonicalizeMainFrameUrl(
        'https://h5-test.imharry.work/login?from=runtime'
        '&shell_app_name=Old#shell_app_logo=old',
      ),
    );

    expect(uri.scheme, 'https');
    expect(uri.host, 'h5-test.imharry.work');
    expect(uri.path, '/login');
    expect(uri.queryParameters['from'], 'runtime');
    expect(uri.queryParameters.containsKey('shell_app_name'), isFalse);
    expect(Uri.splitQueryString(uri.fragment).containsKey('shell_app_logo'),
        isFalse);
  });
}