package features

import (
	"net/http"

	"git.cliffbreak.de/haveachin/scoreboard/ioutil"
	"git.cliffbreak.de/haveachin/scoreboard/request/meta"
	"git.cliffbreak.de/haveachin/scoreboard/response"
	"git.cliffbreak.de/haveachin/scoreboard/service/filter"
	"git.cliffbreak.de/haveachin/scoreboard/service/id"
)

func CreateHandler(v interface{}, s Service) http.HandlerFunc {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		response.APIHandler(w, response.APIHandlerFunc(func() (int, error) {
			if err := ioutil.ExtractAndValidateJSON(r.Body, v); err != nil {
				return http.StatusBadRequest, err
			}

			if err := s.Create(v); err != nil {
				return http.StatusNotFound, err
			}

			return response.New(v, meta.ParseFromRequest(r)).Send(w, http.StatusCreated)
		}))
	})
}

func UpdateHandler(v interface{}, s Service) http.HandlerFunc {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		response.APIHandler(w, response.APIHandlerFunc(func() (int, error) {
			if err := ioutil.ExtractAndValidateJSON(r.Body, v); err != nil {
				return http.StatusBadRequest, err
			}

			id, err := id.ParseFromRequest(r)
			if err != nil {
				return http.StatusBadRequest, err
			}

			filter := &filter.Filter{"_id": *id}

			if err := s.Update(v, filter); err != nil {
				return http.StatusNotFound, err
			}

			return response.New(nil, meta.ParseFromRequest(r)).Send(w, http.StatusOK)
		}))
	})
}

func DeleteHandler(v interface{}, s Service) http.HandlerFunc {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		response.APIHandler(w, response.APIHandlerFunc(func() (int, error) {
			id, err := id.ParseFromRequest(r)
			if err != nil {
				return http.StatusBadRequest, err
			}

			filter := &filter.Filter{"_id": *id}

			if err := s.Delete(v, filter); err != nil {
				return http.StatusNotFound, err
			}

			return response.New(nil, meta.ParseFromRequest(r)).Send(w, http.StatusNoContent)
		}))
	})
}