package api

import (
	"encoding/json"
	"io/ioutil"
	"net/http"

	"gogs.gildas.ch/gildas/movies"
)

type Error struct {
	Error string `json: "error"`
}

func returnError(w http.ResponseWriter, status int, err error) {
	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(status)
	json.NewEncoder(w).Encode(Error{Error: err.Error()})
}

func AddMovieHandler(c *movies.Collection) http.HandlerFunc {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != "POST" {
			return
		}

		b, err := ioutil.ReadAll(r.Body)
		if err != nil {
			returnError(w, http.StatusBadRequest, err)
			return
		}

		m, err := movies.Unmarshal(b)
		if err != nil {
			returnError(w, http.StatusBadRequest, err)
			return
		}

		c.Add(m)
	})
}