feat: add admin apis

internal/middleware/admin.go

@@ -0,0 +1,34 @@
+package middleware
+
+import (
+	"net/http"
+
+	"github.com/prabhupadasays/spsays-bff/internal/repository"
+	"github.com/prabhupadasays/spsays-bff/pkg/response"
+)
+
+// RequireAdmin gates a route to users whose role is "admin". It MUST run after
+// RequireAuth (it reads the authenticated user id from context, then looks up
+// the row to check the role). Non-admins get 403; this keeps the whole
+// /api/v1/admin/* surface invisible to ordinary accounts.
+func RequireAdmin(users *repository.UserRepo) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			uid := UserID(r.Context())
+			if uid == "" {
+				response.Error(w, http.StatusUnauthorized, "not authenticated")
+				return
+			}
+			u, err := users.FindByID(r.Context(), uid)
+			if err != nil {
+				response.Error(w, http.StatusInternalServerError, "auth check failed")
+				return
+			}
+			if u.Role != "admin" {
+				response.Error(w, http.StatusForbidden, "admin access required")
+				return
+			}
+			next.ServeHTTP(w, r)
+		})
+	}
+}