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)
}