package controller

import (
	gm "db_service/gorm_models"
	helper "db_service/pkg"
	"db_service/repositories"
	"encoding/json"
	"errors"
	"gorm.io/driver/mysql"
	"gorm.io/gorm"
	"log"
	"net/http"
	"os"
	"strconv"
	"time"
)

func ParseLink(w http.ResponseWriter, route *http.Request) {
	start := time.Now()

	link := route.URL.Query().Get("url")
	helper.Info("link: ", link)

	linkParser := repositories.NewLinkParser(link)

	//todo
	product, err := linkParser.ParseLink()

	if err != nil {
		w.WriteHeader(http.StatusInternalServerError)
		json.NewEncoder(w).Encode(map[string]string{
			"msg": err.Error(),
		})

		return
	}

	jsonProduct, err := linkParser.GetProductDetailWithOptions(product.ID, product.ProductGroupID)

	if err != nil {
		helper.Error(err)
		return
	}

	baza, err := gorm.Open(mysql.Open(os.Getenv("database_url")), &gorm.Config{})

	if err != nil {
		helper.Error(err)
		return
	}

	var productFlat gm.ProductFlat

	err = baza.Preload("Variants").
		//Preload("Product").
		//Preload("Proudct.AttributeValues","attribute_id in(11,13)").
		First(&productFlat, "sku = ?", jsonProduct.ProductGroupID).Error

	if err != nil && errors.Is(err, gorm.ErrRecordNotFound) {
		helper.Error(err)

		if len(AttributesMap) == 0 {
			var attributes, err = gm.GetAttributes(baza)

			if err != nil {
				http.Error(w, err.Error(), http.StatusInternalServerError)
				return
			}

			for _, atrattribute := range attributes {
				AttributesMap[atrattribute.Code] = atrattribute
			}
		}

		err = ImportProduct(jsonProduct, baza)
	} else if err == nil {
		err = UpdateProduct(jsonProduct, baza, productFlat)
		w.WriteHeader(http.StatusOK)
		json.NewEncoder(w).Encode(map[string]string{
			"msg":            "Link parsed successfully",
			"productGroupId": strconv.Itoa(product.ProductGroupID),
		})
		elapsed := time.Since(start)
		log.Printf("end parse took %s", elapsed)
		return
	}

	if err != nil {
		helper.Error(err)
		return
	}
	elapsed := time.Since(start)
	log.Printf("end parse took %s", elapsed)
	w.WriteHeader(http.StatusOK)
	json.NewEncoder(w).Encode(map[string]string{
		"msg":            "Link parsed successfully",
		"productGroupId": strconv.Itoa(product.ProductGroupID),
	})

}