fix: technical debts left by the Sites, Authors and SEO slices, plus backend support for the new Sites and Authors pagination

internal/infrastructure/useCases/ListSites.go

@@ -6,6 +6,17 @@ type ListSitesUseCase struct {
 	siteRepository site.Repository
 }
 
+type ListSitesCommand struct {
+	Q    string
+	Page int
+	Size int
+}
+
+type SitePage struct {
+	Items []site.Site
+	Total int
+}
+
 func NewListSitesUseCase(siteRepository site.Repository) *ListSitesUseCase {
 	return &ListSitesUseCase{siteRepository}
 }
@@ -13,3 +24,11 @@ func NewListSitesUseCase(siteRepository site.Repository) *ListSitesUseCase {
 func (u *ListSitesUseCase) List() ([]site.Site, error) {
 	return u.siteRepository.List()
 }
+
+func (u *ListSitesUseCase) ListPage(command ListSitesCommand) (SitePage, error) {
+	found, err := u.siteRepository.Find(site.ListQuery{Q: command.Q, Page: command.Page, Size: command.Size})
+	if err != nil {
+		return SitePage{}, err
+	}
+	return SitePage{Items: found.Items, Total: found.Total}, nil
+}