public override async Task <List <Article> > GetArticles(Dictionary <string, string> query, string authedUsername = null)
{
List <int> articleIds = _articleRepository.GetAllArticleIds();
if (null != query.GetValueOrDefault("tag"))
{
Int32 tagId = _tagsRepository.GetTagId(query.GetValueOrDefault("tag"));
articleIds = articleIds.Intersect(_articleTagsRepository.GetArticlesWithTag(tagId)).ToList();
}
if (null != query.GetValueOrDefault("author"))
{
IdentityUser author = await _userManager.FindByNameAsync(query.GetValueOrDefault("author"));
articleIds = articleIds.Intersect(_articleRepository.GetArticlesByAuthorId(author?.Id).Select(e => e.Id).ToList()).ToList();
}
if (null != query.GetValueOrDefault("favorited"))
{
IdentityUser favoritedUser = await _userManager.FindByNameAsync(query.GetValueOrDefault("favorited"));
articleIds = articleIds.Intersect(_favoriteArticleRepository.GetFavoriteArticlesForUser(favoritedUser?.Id)).ToList();
}
List <ArticleDAO> articleDaos = _articleRepository.GetArticlesByArticleIds(articleIds);
if (null != query.GetValueOrDefault("offset"))
{
articleDaos = (List <ArticleDAO>)articleDaos.Skip(Convert.ToInt32(query.GetValueOrDefault("offset")));
}
if (null != query.GetValueOrDefault("limit"))
{
articleDaos = (List <ArticleDAO>)articleDaos.Take(Convert.ToInt32(query.GetValueOrDefault("limit")));
}
List <Article> articles = new List <Article>();
foreach (ArticleDAO articleDao in articleDaos)
{
articles.Add(await CreateArticleFromDAO(articleDao, authedUsername));
}
return(articles);
}
