feat: SEO backend output (2/4)

internal/infrastructure/useCases/ListSitemap.go

@@ -0,0 +1,50 @@
+package useCases
+
+import (
+	"RenewCMS/internal/domain/article"
+	"RenewCMS/internal/domain/site"
+	"time"
+)
+
+type ListSitemapUseCase struct {
+	articleRepository article.Repository
+	sites             site.Repository
+}
+
+func NewListSitemapUseCase(articleRepository article.Repository, sites site.Repository) *ListSitemapUseCase {
+	return &ListSitemapUseCase{articleRepository: articleRepository, sites: sites}
+}
+
+type SitemapEntry struct {
+	URL        string
+	ModifiedAt time.Time
+	Noindex    bool
+}
+
+type SitemapPage struct {
+	Entries []SitemapEntry
+	Total   int
+}
+
+func (u *ListSitemapUseCase) List(siteKey string, page int, size int) (SitemapPage, error) {
+	owner, err := u.sites.GetByKey(siteKey)
+	if err != nil {
+		return SitemapPage{}, err
+	}
+	online := true
+	found, err := u.articleRepository.FindPage(article.Filters{
+		IsOnline: &online,
+		SiteID:   &owner.ID,
+		Page:     page,
+		Size:     size,
+		Sort:     article.Sort{Field: article.SortByID, Direction: article.SortAsc},
+	})
+	if err != nil {
+		return SitemapPage{}, err
+	}
+	entries := make([]SitemapEntry, 0, len(found.Items))
+	for _, item := range found.Items {
+		entries = append(entries, SitemapEntry{URL: articleURL(owner, item.Slug), ModifiedAt: item.UpdatedAt, Noindex: item.Noindex})
+	}
+	return SitemapPage{Entries: entries, Total: found.Total}, nil
+}