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('creates one wildcard H5 line with a numeric 16 digit label', () {
    final line = AppConfig.h5Line;

    expect(line.label, '线路1');
    expect(
      line.uri.host,
      matches(RegExp(r'^[1-9][0-9]{15}\.(albzyuxq|zdyswvnt|gxifpxcr)\.vip$')),
    );
  });

  test('generates the next single URL from the configured fallback order', () {
    var index = 0;
    const labels = [
      '1234567890123456',
      '2234567890123456',
      '3234567890123456',
    ];
    final first = AppConfig.createRandomH5Line(
        attempt: 0, wildcardFactory: () => labels[index++]);
    final second = AppConfig.createRandomH5Line(
        attempt: 1, wildcardFactory: () => labels[index++]);
    final third = AppConfig.createRandomH5Line(
        attempt: 2, wildcardFactory: () => labels[index++]);

    expect(first.uri.host, '1234567890123456.albzyuxq.vip');
    expect(second.uri.host, '2234567890123456.zdyswvnt.vip');
    expect(third.uri.host, '3234567890123456.gxifpxcr.vip');
  });

  test('passes Flutter shell request URL to H5 through query parameters', () {
    final line = AppConfig.createRandomH5Line(
      wildcardFactory: () => '1234567890123456',
    );
    final uri = line.uri;

    expect(uri.queryParameters[AppConfig.flutterShellMarkerQueryKey], '1');
    expect(
      uri.queryParameters[AppConfig.flutterShellUrlQueryKey],
      'https://1234567890123456.albzyuxq.vip',
    );
    expect(
      AppConfig.originForUrl(line.url),
      'https://1234567890123456.albzyuxq.vip',
    );
  });

  test('restores a cached H5 line URL with the single line label', () {
    final line = AppConfig.h5LineFromUrl(
      'https://1234567890123456.albzyuxq.vip/?flutter_shell=1',
    );

    expect(line.label, '线路1');
    expect(line.uri.host, '1234567890123456.albzyuxq.vip');
  });
}