package routes

import (
	"errors"
	"net/http"
	"strconv"

	"git.artlef.fr/bibliomane/internal/appcontext"
	"git.artlef.fr/bibliomane/internal/i18nresource"
	"git.artlef.fr/bibliomane/internal/model"
	"git.artlef.fr/bibliomane/internal/myvalidator"
	"git.artlef.fr/bibliomane/internal/query"
	"github.com/gin-gonic/gin"
)

func DeleteCollectionHandler(ac appcontext.AppContext) {
	collectionId, err := strconv.ParseUint(ac.C.Param("id"), 10, 64)
	if err != nil {
		ac.C.JSON(http.StatusBadRequest, gin.H{"error": err})
		return
	}

	user, err := ac.GetAuthenticatedUser()
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}

	err = myvalidator.ValidateId(ac.Db, uint(collectionId), &model.Collection{})
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}

	collection, err := query.FetchCollectionHeader(ac.Db, uint(collectionId))

	if collection.UserID != user.ID {
		err := myvalidator.HttpError{
			StatusCode: http.StatusUnauthorized,
			Err:        errors.New(i18nresource.GetTranslatedMessage(&ac, "Unauthorized")),
		}
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}

	collectionDb := model.Collection{}
	collectionDb.ID = uint(collectionId)

	err = ac.Db.Where("collection_id = ?", collectionId).Delete(&model.CollectionItem{}).Error
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}
	err = ac.Db.Delete(&collectionDb).Error
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}
	err = ac.Db.Delete(&collectionDb).Error
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}

	ac.C.JSON(http.StatusOK, "Success")
}