feat(backend): implement HTTP API, auth, chat, and admin surfaces

Expose learning, registration controls, mentor chat, realtime WebSocket, and staff administration.

backend/internal/api/notifications.go

@@ -0,0 +1,97 @@
+package api
+
+import (
+	"net/http"
+	"strconv"
+
+	"pargar/backend/internal/models"
+)
+
+func (s *Server) handleListNotifications(w http.ResponseWriter, r *http.Request) {
+	u := currentUser(r)
+	limit := 30
+	offset := 0
+	if v := r.URL.Query().Get("limit"); v != "" {
+		if n, err := strconv.Atoi(v); err == nil && n > 0 && n <= 100 {
+			limit = n
+		}
+	}
+	if v := r.URL.Query().Get("offset"); v != "" {
+		if n, err := strconv.Atoi(v); err == nil && n >= 0 {
+			offset = n
+		}
+	}
+	items, err := s.store.ListNotifications(r.Context(), u.ID, limit, offset)
+	if err != nil {
+		writeErr(w, http.StatusInternalServerError, "بارگذاری اعلان‌ها ممکن نشد")
+		return
+	}
+	unread, _ := s.store.UnreadCount(r.Context(), u.ID)
+	if items == nil {
+		items = []models.Notification{}
+	}
+	writeJSON(w, http.StatusOK, map[string]any{
+		"notifications": items,
+		"unread":        unread,
+	})
+}
+
+func (s *Server) handleUnreadCount(w http.ResponseWriter, r *http.Request) {
+	u := currentUser(r)
+	n, err := s.store.UnreadCount(r.Context(), u.ID)
+	if err != nil {
+		writeErr(w, http.StatusInternalServerError, "شمارش ممکن نشد")
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"unread": n})
+}
+
+func (s *Server) handleMarkRead(w http.ResponseWriter, r *http.Request) {
+	u := currentUser(r)
+	id := routeID(r, "id")
+	if err := s.store.MarkRead(r.Context(), u.ID, id); err != nil {
+		writeErr(w, http.StatusInternalServerError, "به‌روزرسانی اعلان ممکن نشد")
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"ok": true})
+}
+
+func (s *Server) handleMarkAllRead(w http.ResponseWriter, r *http.Request) {
+	u := currentUser(r)
+	if err := s.store.MarkAllRead(r.Context(), u.ID); err != nil {
+		writeErr(w, http.StatusInternalServerError, "به‌روزرسانی اعلان‌ها ممکن نشد")
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"ok": true})
+}
+
+func (s *Server) handleGetPrefs(w http.ResponseWriter, r *http.Request) {
+	u := currentUser(r)
+	prefs, err := s.store.GetPrefs(r.Context(), u.ID)
+	if err != nil {
+		writeErr(w, http.StatusInternalServerError, "بارگذاری تنظیمات ممکن نشد")
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"prefs": prefs})
+}
+
+func (s *Server) handlePutPrefs(w http.ResponseWriter, r *http.Request) {
+	u := currentUser(r)
+	var req models.NotificationPrefs
+	if err := bodyJSON(r, &req); err != nil {
+		writeErr(w, http.StatusBadRequest, "دادهٔ ارسالی نامعتبر است")
+		return
+	}
+	p := &models.NotificationPrefs{
+		UserID:       u.ID,
+		Progress:     req.Progress,
+		Gamification: req.Gamification,
+		Mentor:       req.Mentor,
+		Event:        req.Event,
+	}
+	if err := s.store.UpdatePrefs(r.Context(), p); err != nil {
+		writeErr(w, http.StatusInternalServerError, "ذخیرهٔ تنظیمات ممکن نشد")
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"prefs": p})
+}