private void CreateTheme(IReadOnlyCollection <string> keywordIntersection, ThemeArticle article)
{
var matchingArticles = _articles
.Where(x => x.ContainsKeywords(keywordIntersection))
.Append(article)
.ToArray();
Apply(new NewThemeCreated(Guid.NewGuid(), keywordIntersection, matchingArticles));
}
public void Add(ThemeArticle article)
{
foreach (var existingArticle in _articles)
{
var keywordIntersection = existingArticle.ContainsKeywords(article);
if (!keywordIntersection.Any())
{
continue;
}
var matchingThemes = _themes.Where(theme => theme.Keywords.Intersect(keywordIntersection).Count() == theme.Keywords.Count).ToList();
if (matchingThemes.Any())
{
foreach (var matchingTheme in matchingThemes.Where(matchingTheme => !matchingTheme.Contains(article)))
{
Apply(new ArticleAddedToTheme(matchingTheme.Id, article));
}
}
if (matchingThemes.All(x => x.Keywords.Count != keywordIntersection.Count))
{
CreateTheme(keywordIntersection, article);
}
}
foreach (var theme in _themes.ToList())
{
var keywordIntersection = theme.ContainsKeywords(article);
if (!keywordIntersection.Any())
{
continue;
}
var existingTheme = _themes.FirstOrDefault(x => x.Keywords.SequenceEqual(keywordIntersection));
if (existingTheme == null)
{
Apply(new NewThemeCreated(Guid.NewGuid(), keywordIntersection, theme.Articles.Append(article).ToArray()));
}
else if (!existingTheme.Contains(article))
{
Apply(new ArticleAddedToTheme(existingTheme.Id, article));
}
}
_articles.Add(article);
}
public IReadOnlyCollection <string> ContainsKeywords(ThemeArticle article)
{
return(Keywords.Intersect(article.Keywords).ToArray());
}
public bool Contains(ThemeArticle article)
{
return(_articles.Contains(article));
}
public void AddArticle(ThemeArticle article)
{
_articles.Add(article);
}
public ArticleAddedToTheme(Guid themeId, ThemeArticle article) : base(themeId, "theme")
{
Article = article;
}