added logout

internal/auth/handler.go

@@ -2,6 +2,7 @@ package auth
 
 import (
 	"errors"
+	"log"
 	"net/http"
 
 	"github.com/gin-gonic/gin"
@@ -38,6 +39,7 @@ func (h *Handler) Register(c *gin.Context) {
 			c.JSON(http.StatusConflict, ErrorResponse{Error: err.Error()})
 			return
 		}
+		log.Printf("register error: %v", err)
 		c.JSON(http.StatusInternalServerError, ErrorResponse{Error: "internal server error"})
 		return
 	}
@@ -64,7 +66,12 @@ func (h *Handler) Login(c *gin.Context) {
 
 	resp, err := h.service.Login(c.Request.Context(), req)
 	if err != nil {
-		c.JSON(http.StatusUnauthorized, ErrorResponse{Error: err.Error()})
+		if errors.Is(err, ErrInvalidCreds) {
+			c.JSON(http.StatusUnauthorized, ErrorResponse{Error: err.Error()})
+			return
+		}
+		log.Printf("login error: %v", err)
+		c.JSON(http.StatusInternalServerError, ErrorResponse{Error: "internal server error"})
 		return
 	}
 
@@ -94,6 +101,7 @@ func (h *Handler) Refresh(c *gin.Context) {
 			c.JSON(http.StatusUnauthorized, ErrorResponse{Error: err.Error()})
 			return
 		}
+		log.Printf("refresh error: %v", err)
 		c.JSON(http.StatusInternalServerError, ErrorResponse{Error: "internal server error"})
 		return
 	}
@@ -101,6 +109,36 @@ func (h *Handler) Refresh(c *gin.Context) {
 	c.JSON(http.StatusOK, resp)
 }
 
+// @Summary      Logout epta
+// @Description  Invalidate a refresh token (logout)
+// @Tags         auth
+// @Accept       json
+// @Produce      json
+// @Param        request  body  LogoutRequest  true  "Refresh token to invalidate"
+// @Success      200  {object}  map[string]string
+// @Failure      400  {object}  ErrorResponse
+// @Failure      401  {object}  ErrorResponse
+// @Router       /api/auth/logout [post]
+func (h *Handler) Logout(c *gin.Context) {
+	var req LogoutRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, ErrorResponse{Error: err.Error()})
+		return
+	}
+
+	if err := h.service.Logout(c.Request.Context(), req.RefreshToken); err != nil {
+		if errors.Is(err, ErrLogoutInvalid) {
+			c.JSON(http.StatusUnauthorized, ErrorResponse{Error: err.Error()})
+			return
+		}
+		log.Printf("logout error: %v", err)
+		c.JSON(http.StatusInternalServerError, ErrorResponse{Error: "internal server error"})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"message": "logged out successfully"})
+}
+
 // @Summary      Epta get current user
 // @Description  Get authenticated user's profile
 // @Tags         auth
@@ -129,6 +167,7 @@ func (h *Handler) Me(c *gin.Context) {
 			c.JSON(http.StatusNotFound, ErrorResponse{Error: err.Error()})
 			return
 		}
+		log.Printf("me error: %v", err)
 		c.JSON(http.StatusInternalServerError, ErrorResponse{Error: "internal server error"})
 		return
 	}