add sorting; implement sort criteria in default repo ; adding html header

cmd/frontend/main.go

@@ -9,14 +9,19 @@ import (
 	"net/http"
 )
 
+type articleDateOrder struct {}
+func (ord articleDateOrder) Weight(a *model.Article) int {
+    return int(a.PublishDate.Unix()) * -1
+}
+
 func index(w http.ResponseWriter, req *http.Request) {
     fds, _ := data.NewFileDatastore("./persistence/spiegel100.json")
     
     repo, _ := data.NewDefaultRepository[*model.Article](fds, "article")
-    articles, _ := repo.GetAll()
+    articles, _ := repo.GetByCriteria(articleDateOrder{})
 
     t := template.Must(template.ParseFiles("templates/article.html", "templates/layout.html"))
-    _ = t.ExecuteTemplate(w, "base", articles)
+    _ = t.ExecuteTemplate(w, "base", articles[:10])
 }
 
 func main() {