Added picture like

routers/api/v1/picture/like.go

@@ -0,0 +1,64 @@
+package picture
+
+import (
+	"time"
+
+	"git.umbach.dev/app-idea/rest-api/modules/config"
+	"git.umbach.dev/app-idea/rest-api/modules/database"
+	"git.umbach.dev/app-idea/rest-api/modules/structs"
+	"git.umbach.dev/app-idea/rest-api/routers/api/v1/user"
+	"github.com/gofiber/fiber/v2"
+	log "github.com/sirupsen/logrus"
+	"gorm.io/gorm"
+)
+
+func Like(c *fiber.Ctx) error {
+	state := c.Params("state")
+	db := database.DB
+
+	user, err := user.GetUserBySessionId(c.Cookies(config.Cfg.Settings.Cookies.SessionId))
+
+	if err != nil {
+		return c.SendStatus(fiber.StatusInternalServerError)
+	}
+
+	if state == "1" {
+		// create if like
+		db.Create(&structs.PictureLike{UserId: user.Id, PictureId: c.Params("pictureId"), LikedAt: time.Now()})
+	} else {
+		// delete if unlike
+		db.Where("user_id = ?", user.Id).Where("picture_id = ?", c.Params("pictureId")).Delete(&structs.PictureLike{})
+	}
+
+	err = db.Transaction(func(tx *gorm.DB) error {
+		picture := &structs.Picture{}
+
+		if err := tx.First(&picture, "picture_id = ?", c.Params("pictureId")).Error; err != nil {
+			log.Infoln("here1", err)
+			return err
+		}
+
+		if state == "1" {
+			// like
+			err = tx.Model(&picture).Where("picture_id = ?", c.Params("pictureId")).Update("likes", picture.Likes+1).Error
+		} else {
+			// unlike
+			err = tx.Model(&picture).Where("picture_id = ?", c.Params("pictureId")).Update("likes", picture.Likes-1).Error
+
+		}
+
+		if err != nil {
+			log.Debugln("err update picture likes:", err)
+			return err
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		log.Infoln("err picture like transaction", err)
+		return c.SendStatus(fiber.StatusInternalServerError)
+	}
+
+	return c.SendStatus(fiber.StatusOK)
+}