feat: update handlers in posts

backend/internal/handlers/post_handlers.go

@@ -33,6 +33,9 @@ func (h *PostHandlers) GetPosts(c *gin.Context) {
 		h.logger.Error("error request: " + err.Error())
 		c.Status(500)
 	}
+	if result == nil {
+		c.JSON(200, gin.H{"Status": "No Post found"})
+	}
 	h.logger.Info("200 OK GET /posts")
 	c.JSON(200, result)
 }
@@ -46,15 +49,25 @@ func (h *PostHandlers) GetPosts(c *gin.Context) {
 // @Produce  json
 // @Success 200 {object} storage.PostReq
 // @Failure 400 {object} map[string]string "Invalid ID format"
+// @Failure 404 {object} map[string]string "Post not found"
 // @Failure 500 {object} map[string]string "Internal server error"
 // @Router /posts/{id} [get]
 func (h *PostHandlers) GetPost(c *gin.Context) {
 	var result storage.PostReq
+	last_id, err := h.repo.GetLastID(c.Request.Context())
+	if err != nil {
+		h.logger.Error("error request: " + err.Error())
+		c.Status(500)
+	}
 	id_p := c.Param("id")
 	id, err := strconv.Atoi(id_p)
 	if err != nil {
 		h.logger.Error("error request: " + err.Error())
-		c.Status(500)
+		c.JSON(400, gin.H{"error": "Invalid ID format"})
+	}
+	if id > last_id {
+		c.JSON(404, gin.H{"error": "Post not found"})
+		return
 	}
 	result, err = h.repo.GetByID(c.Request.Context(), id)
 	if err != nil {
@@ -63,7 +76,7 @@ func (h *PostHandlers) GetPost(c *gin.Context) {
 	}
 	h.logger.Info("200 OK GET /posts/" + id_p)
 	c.JSON(200, result)
-	// TODO: added validaton for 400 response
+
 }
 
 // CreatePost godoc
@@ -133,9 +146,29 @@ func (h *PostHandlers) UpdatePost(c *gin.Context) {
 // @Summary Delete post
 // @Description Delete post
 // @Tags posts
+// @Param id path int true "Post ID"
 // @Accept  json
 // @Produce  json
 // @Success 200 {object} storage.Post
 // @Router /posts/{id} [delete]
-func DeletePost(c *gin.Context) {
+func (h *PostHandlers) DeletePost(c *gin.Context) {
+	id_p := c.Param("id")
+	id, err := strconv.Atoi(id_p)
+	if err != nil {
+		h.logger.Error("error request: " + err.Error())
+		c.JSON(400, gin.H{"error": "Invalid ID format"})
+	}
+	exsist := h.repo.IsExist(c.Request.Context(), id)
+	if !exsist {
+		c.JSON(404, gin.H{"error": "Post not found"})
+		return
+	}
+	err = h.repo.Delete(c.Request.Context(), id)
+	if err != nil {
+		c.JSON(500, gin.H{"error": err.Error()})
+		return
+	}
+	h.logger.Info("200 OK DELETE /posts/" + id_p)
+	c.JSON(200, gin.H{"Status": "Post deleted"})
+
 }