package handlers

import (
	"net/http"
	"strconv"

	"otaupdate/services"

	"github.com/fiskerinc/cloud-services/pkg/common"
	"github.com/fiskerinc/cloud-services/pkg/db/queries"
	"github.com/fiskerinc/cloud-services/pkg/utils"
	"github.com/julienschmidt/httprouter"
	"github.com/fiskerinc/cloud-services/pkg/loggerdataresp"
)

// HandleGetCarsByManifest godoc
// @Summary Get cars by manifest
// @Description Returns list of cars selected by manifest id
// @Accept  json
// @Produce  json
// @Param Authorization header string false "Bearer <ID token>"
// @Param Api-Key header string false "<API token>"
// @Param limit query int false "Max number of records"
// @Param offset query int false "Records offset"
// @Param order query string false "Sort on column with asc or desc"
// @Param manifest_id path int true "Manifest ID"
// @Success 200 {object} common.JSONDBQueryResult{data=[]common.Car} "list of cars"
// @Failure 400 {object} common.JSONError "Bad request"
// @Failure 401 {object} common.JSONError "Unauthorized"
// @Failure 503 {object} common.JSONError "Service unavailable"
// @Router /manifests/{manifest_id}/vehicles [get]
func HandleGetCarsByManifest(w http.ResponseWriter, r *http.Request) {
	params := httprouter.ParamsFromContext(r.Context())
	idS := params.ByName("manifest_id")
	id, err := strconv.Atoi(idS)
	if loggerdataresp.BadDataErrorResp(w, err, http.StatusBadRequest) {
		return
	}

	options, err := queries.ParsePageQuery(r)
	if loggerdataresp.BadDataErrorResp(w, err, http.StatusBadRequest) {
		return
	}

	manDB := services.GetDB().GetUpdateManifests()
	man := common.UpdateManifest{ID: int64(id)}
	err = manDB.Load(&man)
	if loggerdataresp.BadDataErrorResp(w, err, http.StatusServiceUnavailable, loggerdataresp.PostgresNoRowsErrorCheck) {
		return
	}

	carsDB := services.GetDB().GetCars()
	cars, err := carsDB.CarsByManifest(man, options)
	if loggerdataresp.BadDataErrorResp(w, err, http.StatusServiceUnavailable) {
		return
	}

	total, err := carsDB.CountCarsByManifest(man)
	if loggerdataresp.BadDataErrorResp(w, err, http.StatusServiceUnavailable) {
		return
	}

	if cars == nil {
		cars = []common.Car{}
	}

	utils.RespJSON(w, http.StatusOK, common.JSONDBQueryResult{
		Data:  cars,
		Total: total,
	})
}