package api

import (
	"encoding/json"
	"fmt"
	"io"
	"log"
	"net/http"

	"github.com/google/uuid"
	"gittea.marcokittel.de/elio/eliotools/datawriter/internal/database"
	"gittea.marcokittel.de/elio/eliotools/datawriter/internal/models"
)

func GetProductReservationApiHandleFunc(nps *database.ProductService) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		if r.Method != "POST" {
			return
		}
		defer r.Body.Close()
		data, err := io.ReadAll(r.Body)
		if err != nil {
			log.Println(err)
			return
		}
		var payload models.Container
		err = json.Unmarshal(data, &payload)
		if err != nil {
			log.Printf("Could not parse Json: %s", err)
			return
		}
		groupId := uuid.New().String()
		result, err := nps.FetchReservationData(&payload, models.UUID(groupId))
		if err != nil {
			//Todo Fehlerhandling
			log.Println(err)
		}
		if len(result) == 0 {
			w.WriteHeader(http.StatusNoContent)
			fmt.Fprintln(w)
			return
		}
		_, err = nps.ReserviereBestellungen(result, models.UUID(groupId))
		if err != nil {
			log.Println(err)
		}
		jsonResult, err := json.Marshal(result[0])
		if err != nil {
			log.Println(err)
		}
		w.Header().Set("Content-Type", "application/json")
		w.WriteHeader(http.StatusOK)
		fmt.Fprintln(w, string(jsonResult))
	}
}