getTrendingRepositories function

Future<List<TrendingRepository>> getTrendingRepositories({ String since, String language, })

A method to get trending repositories

Implementation

Future<List<TrendingRepository>> getTrendingRepositories({
  String since,
  String language,
}) async {
  var url = '${URL}/trending';
  if (language != null) {
    url += '/$language';
  }
  if (since != null) {
    url += '?since=$since';
  }

  var res = await http.get(url);
  var document = parse(res.body);
  var items = document.querySelectorAll('.Box-row');

  return items.map((item) {
    PrimaryLanguage primaryLanguage;
    var colorNode = item.querySelector('.repo-language-color');

    if (colorNode != null) {
      primaryLanguage = PrimaryLanguage(
          name: colorNode.nextElementSibling?.innerHtml?.trim(),
          color: RegExp(r'#[0-9a-fA-F]{3,6}')
              .firstMatch(colorNode.attributes['style'])
              ?.group(0));
    }

    var starCountStr = item
        .querySelector('.f6')
        ?.querySelector('.octicon-star')
        ?.parent
        ?.innerHtml
        ?.replaceAll(RegExp(r'^[\s\S]*svg>'), '')
        ?.replaceAll(',', '')
        ?.trim();

    var starCount = starCountStr == null ? null : int.tryParse(starCountStr);

    var forkCountStr = item
        .querySelector('.octicon-repo-forked')
        ?.parent
        ?.innerHtml
        ?.replaceAll(RegExp(r'^[\s\S]*svg>'), '')
        ?.replaceAll(',', '')
        ?.trim();
    var forkCount = forkCountStr == null ? null : int.tryParse(forkCountStr);

    var starsStr = item
        .querySelector('.float-sm-right')
        ?.innerHtml
        ?.replaceAll(RegExp(r'^[\s\S]*svg>'), '')
        ?.replaceAll(',', '')
        ?.trim();

    String description;
    String descriptionHTML;
    var descriptionRawHtml = item.querySelector('p')?.innerHtml?.trim();
    if (descriptionRawHtml != null) {
      description = descriptionRawHtml
          ?.replaceAll(RegExp(r'<g-emoji.*?>'), '')
          ?.replaceAll(RegExp(r'</g-emoji>'), '')
          ?.replaceAll(RegExp(r'<a.*?>'), '')
          ?.replaceAll(RegExp(r'</a>'), '');
      descriptionHTML = '<div>$descriptionRawHtml</div>';
    }

    List<RepositoryBuildBy> buildBys = [];
    var buildByNodes = item.querySelectorAll('.avatar');
    if (buildByNodes != null && buildByNodes.isNotEmpty) {
      buildByNodes.forEach((e) {
        buildBys.add(RepositoryBuildBy(
          avatar: e.attributes['src'],
          username: e.attributes['alt'].replaceFirst('@', ''),
        ));
      });
    }

    var username = item
        .querySelector('.text-normal')
        ?.innerHtml
        ?.replaceFirst('/', '')
        ?.trim();

    var name = item
        .querySelector('.text-normal')
        ?.parent
        ?.innerHtml
        ?.replaceAll(RegExp(r'^[\s\S]*span>'), '')
        ?.trim();

    return TrendingRepository(
      owner: username,
      avatar: '${URL}/${username}.png',
      name: name,
      description: description,
      descriptionHTML: descriptionHTML,
      starCount: starCount,
      forkCount: forkCount,
      stars: starsStr,
      primaryLanguage: primaryLanguage,
      buildBys: buildBys,
    );
  }).toList();
}