package httpDelivery

import (
	"errors"
	"github.com/gin-gonic/gin"
	log "github.com/sirupsen/logrus"
	"net/http"
)

type controller struct {
	service *service
}

func newController(s *service) *controller {
	return &controller{
		service: s,
	}
}

func (h *Handler) RegisterRoutes(r *gin.RouterGroup) {
	merchImages := r.Group("/merchImages")
	merchImages.GET("/:userUuid/:merchUuid", h.controller.GetImage)
	log.Debug("Image delivery | Register routes")
}

func (co *controller) GetImage(c *gin.Context) {
	userUuid := c.Param("userUuid")
	merchUuid := c.Param("merchUuid")
	imgType := c.Query("type")

	if userUuid == "" || merchUuid == "" || imgType == "" {
		log.WithFields(log.Fields{
			"msg":       "empty path/query param(s)",
			"userUuid":  userUuid,
			"merchUuid": merchUuid,
			"imgType":   imgType,
		}).Debug(logGetImage)
		c.AbortWithStatus(http.StatusBadRequest)
		return
	}

	if imgType != "thumbnail" && imgType != "full" {
		log.WithField("msg", "invalid image type").Debug(logGetImage)
		c.AbortWithStatus(http.StatusBadRequest)
		return
	}

	link, err := co.service.GetImage(userUuid, merchUuid, imgType)
	if err != nil {
		if errors.Is(err, notFound) {
			log.WithField("msg", err.Error()).Debug(logGetImage)
			c.AbortWithStatus(http.StatusNotFound)
			return
		}

		log.WithField("msg", err.Error()).Debug(logGetImage)
		c.AbortWithStatus(http.StatusInternalServerError)
		return
	}

	log.WithField("msg", "success").Info(logGetImage)
	c.File(link)
}