add get progress enpoint

Author: nevzattalhaozcan

internal/handlers/reading.go

@@ -88,6 +88,28 @@ func (h *ReadingHandler) UpdateProgress(c *gin.Context) {
 	c.JSON(http.StatusOK, resp)
 }
 
+// @Summary Get Reading Progress
+// @Description Retrieve the current reading progress of a book.
+// @Tags Reading
+// @Produce json
+// @Param id path int true "User ID"
+// @Param bookID path int true "Book ID"
+// @Success 200 {object} models.UserBookProgressResponse
+// @Failure 400 {object} models.ErrorResponse
+// @Router /users/{id}/readings/{bookID} [get]
+// @Security Bearer
+func (h *ReadingHandler) GetProgress(c *gin.Context) {
+	userID, _ := strconv.ParseUint(c.Param("id"), 10, 64)
+	bookID, _ := strconv.ParseUint(c.Param("bookID"), 10, 64)
+
+	resp, err := h.readingService.GetUserBookProgress(uint(userID), uint(bookID))
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, resp)
+}
+
 // @Summary Complete Reading a Book
 // @Description Mark a book as completed and optionally add a note.
 // @Tags Reading

internal/handlers/server.go

@@ -204,6 +204,7 @@ func (s *Server) setupRoutes() {
 		protected.POST("/users/:id/reading/start", middleware.AuthorizeSelf(), readingHandler.StartReading)
 		protected.PATCH("/users/:id/reading/:bookID/progress", middleware.AuthorizeSelf(), readingHandler.UpdateProgress)
 		protected.POST("/users/:id/reading/:bookID/complete", middleware.AuthorizeSelf(), readingHandler.CompleteReading)
+		protected.GET("/users/:id/readings/:bookID/progress", middleware.AuthorizeSelf(), readingHandler.GetProgress)
 		protected.GET("/users/:id/reading", middleware.AuthorizeSelf(), readingHandler.ListUserProgress)
 		protected.GET("/users/:id/reading/history", readingHandler.UserReadingHistory)
 

internal/services/reading.go

@@ -103,6 +103,23 @@ func (s *ReadingService) UpdateProgress(userID, bookID uint, req *models.UpdateR
 	return &resp, nil
 }
 
+func (s *ReadingService) GetUserBookProgress(userID, bookID uint) (*models.UserBookProgressResponse, error) {
+	book, err := s.bookRepo.GetByID(bookID)
+	if err != nil {
+		return nil, err
+	}
+
+	p, err := s.readRepo.GetUserBookProgress(userID, bookID)
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, errors.New("reading not started")
+	} else if err != nil {
+		return nil, err
+	}
+
+	resp := p.ToResponse(book)
+	return &resp, nil
+}
+
 func (s *ReadingService) CompleteReading(userID, bookID uint, note *string) (*models.UserBookProgressResponse, error) {
 	book, err := s.bookRepo.GetByID(bookID)
 	if err != nil {