update/teacher photo

controllers/updateController.go

@@ -1261,9 +1261,119 @@ func UpdateTeacherAddress(c *fiber.Ctx) error {
 }
 
 func UpdateTeacherPhoto(c *fiber.Ctx) error {
-	return c.Status(fiber.StatusNotImplemented).JSON(fiber.Map{
-		"success": nil,
-		"message": "not implimented",
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+
+	//Ensure Authenticated admin sent request
+	if !AuthAdmin(c) {
+		cancel()
+		return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{
+			"success": false,
+			"message": "Unauthorized: only an admin can perform this action",
+		})
+	}
+
+	tid := c.FormValue("tid")
+	if tid == "" {
+		cancel()
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
+			"success": false,
+			"message": "missing required fields",
+		})
+	}
+
+	// Get student
+	var teacher models.Teacher
+	findErr := teacherCollection.FindOne(context.TODO(), bson.M{"schooldata.tid": tid}).Decode(&teacher)
+	if findErr != nil {
+		cancel()
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"success": false,
+			"message": "the student could not be found",
+			"error":   findErr,
+		})
+	}
+
+	// Collect image
+	file, err := c.FormFile("image")
+	if err != nil {
+		cancel()
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"success": false,
+			"message": "the image could not be retrieved",
+			"error":   err,
+		})
+	}
+
+	// Get student photo
+	var photo models.Photo
+	findErr = imageCollection.FindOne(context.TODO(), bson.M{"name": teacher.SchoolData.PhotoName}).Decode(&photo)
+	if findErr != nil {
+		cancel()
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"success": false,
+			"message": "the student image could not be found",
+			"error":   findErr,
+		})
+	}
+
+	// Save image to local
+	uniqueId := uuid.New()
+	filename := strings.Replace(uniqueId.String(), "-", "", -1)
+	fileExt := strings.Split(file.Filename, ".")[1]
+	image := fmt.Sprintf("%s.%s", filename, fileExt)
+	err = c.SaveFile(file, fmt.Sprintf("./database/images/%s", image))
+	if err != nil {
+		cancel()
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"success": false,
+			"message": "the image could not be saved",
+			"error":   err,
+		})
+	}
+
+	// Read the entire file into a byte slice
+	bytes, err := ioutil.ReadFile(fmt.Sprintf("./database/images/%s", image))
+	if err != nil {
+		cancel()
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"success": false,
+			"message": "the image could not be read",
+			"error":   err,
+		})
+	}
+
+	var base64Encoding string = toBase64(bytes)
+
+	// Update image name and base64 data
+	update_time, _ := time.Parse(time.RFC3339, time.Now().Format(time.RFC3339))
+	update := bson.M{
+		"$set": bson.M{
+			"base64":     base64Encoding,
+			"updated_at": update_time,
+		},
+	}
+	result, updateErr := imageCollection.UpdateOne(
+		ctx,
+		bson.M{"_id": photo.ID},
+		update,
+	)
+	if updateErr != nil {
+		cancel()
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"success": false,
+			"message": "the image could not be updated",
+			"error":   updateErr,
+		})
+	}
+	defer cancel()
+
+	// Remove local image
+	os.Remove(fmt.Sprintf("./database/images/%s", image))
+
+	return c.Status(fiber.StatusOK).JSON(fiber.Map{
+		"success": true,
+		"message": "successfully updated teacher photo",
+		"result":  result,
 	})
 }