package web

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

	"github.com/rs/zerolog/log"
)

var Develop = true

type RegisterResponse struct {
	ID           string
	DateCreated  int64
	Verification string `json:",omitempty"`
}

func (web *Web) handlerRegisterCode(w http.ResponseWriter, r *http.Request) {
	uid, err := web.uf.NewUser()
	if err != nil {
		w.WriteHeader(500)
		log.Error().Err(err).Msg("error from NewUserID")
		fmt.Fprintf(w, "Error registering user: %s", err)
		return
	}
	if err != nil {
		w.WriteHeader(500)
		log.Error().Err(err).Msg("error converting date")
		fmt.Fprintf(w, "Error registering user: %s", err)
		return
	}
	resp := RegisterResponse{
		ID:          uid.String(),
		DateCreated: uid.DateCreated.Int64,
	}
	if Develop {
		resp.Verification, _ = web.h.EncodeInt64([]int64{uid.Verification})
	}
	out, err := json.Marshal(resp)
	if err != nil {
		w.WriteHeader(500)
		log.Error().Err(err).Msg("error from json.Marshal")
		fmt.Fprintf(w, "Error registering user: %s", err)
		return
	}
	fmt.Fprintf(w, "%s", string(out))
}

func (web *Web) checkUser(w http.ResponseWriter, r *http.Request) {
	uid := r.Header.Get("X-user-id")
	verify := r.Header.Get("X-user-verification")
	log.Debug().
		Str("uid", uid).
		Str("verify", verify).
		Msg("checkUser")
	user, err := web.uf.FromStr(uid, verify)
	if err != nil {
		log.Error().Err(err).Msg("user not known")
		w.WriteHeader(http.StatusUnauthorized)
		fmt.Fprint(w, "User not known")
		return
	}
	j, err := json.Marshal(user)
	if err != nil {
		w.WriteHeader(500)
		log.Error().Err(err).Msg("could not marshal user")
		fmt.Fprintf(w, "%s", err)
		return
	}
	w.Write(j)
}