feat: public API, SEO and existing surfaces

test/article_test.go

@@ -129,6 +129,9 @@ func (m *mockArticleRepo) FindPage(filters article.Filters) (article.PageResult,
 		if filters.Lang != nil && a.Lang != *filters.Lang {
 			continue
 		}
+		if filters.Langs != nil && !slices.Contains(*filters.Langs, a.Lang) {
+			continue
+		}
 		if filters.AuthorID != nil && !slices.Contains(m.credits[a.ID], *filters.AuthorID) {
 			continue
 		}
@@ -460,6 +463,18 @@ func (m *mockArticleRepo) storyHasLanguage(storyID uint32, lang string) bool {
 	return false
 }
 
+func (m *mockArticleRepo) GetByLangSlug(siteID uint32, lang string, slug string) (article.Article, error) {
+	if err := m.fail.trigger("GetByLangSlug"); err != nil {
+		return article.Article{}, err
+	}
+	for _, id := range m.sortedIds() {
+		if stored := m.articles[id]; stored.SiteID == siteID && stored.Lang == lang && stored.Slug == slug {
+			return m.withAuthors(stored), nil
+		}
+	}
+	return article.Article{}, article.ErrArticleNotFound
+}
+
 func (m *mockArticleRepo) ListByStory(storyID uint32) ([]article.Article, error) {
 	if err := m.fail.trigger("ListByStory"); err != nil {
 		return nil, err