restructure the API and update the admin script

api/routes/news.go

@@ -0,0 +1,47 @@
+package routes
+
+import (
+	"strings"
+
+	"github.com/gofiber/fiber/v2"
+	"github.com/ngn13/website/api/config"
+	"github.com/ngn13/website/api/database"
+	"github.com/ngn13/website/api/util"
+)
+
+func GET_News(c *fiber.Ctx) error {
+	var (
+		news []database.News
+		n    database.News
+		feed []byte
+		err  error
+	)
+
+	db := c.Locals("database").(*database.Type)
+	conf := c.Locals("config").(*config.Type)
+	frontend := conf.GetURL("frontend_url")
+	lang := c.Params("lang")
+
+	if lang == "" || len(lang) != 2 {
+		return util.ErrBadReq(c)
+	}
+
+	lang = strings.ToLower(lang)
+
+	for db.NewsNext(&n) {
+		if n.Supports(lang) {
+			news = append(news, n)
+		}
+	}
+
+	if feed, err = util.Render("views/news.xml", fiber.Map{
+		"frontend": frontend,
+		"lang":     lang,
+		"news":     news,
+	}); err != nil {
+		return util.ErrInternal(c, err)
+	}
+
+	c.Set("Content-Type", "application/atom+xml; charset=utf-8")
+	return c.Send(feed)
+}