package nanoleaf

import (
	"context"
	"encoding/json"
	"errors"
	"fmt"
	lucifer3 "git.aiterp.net/lucifer3/server"
	"net/http"
)

func Discover(ctx context.Context, ip string, register bool) (string, *DeviceInfo, error) {
	res, err := http.Get(fmt.Sprintf("http://%s/device_info", ip))
	if err != nil {
		return "", nil, err
	}
	defer res.Body.Close()

	deviceInfo := DeviceInfo{}
	err = json.NewDecoder(res.Body).Decode(&deviceInfo)
	if err != nil {
		return "", nil, err
	}
	if deviceInfo.ModelNumber == "" {
		return "", nil, lucifer3.ErrUnexpectedResponse
	}

	token := ""
	if register {
		req, err := http.NewRequest("POST", fmt.Sprintf("http://%s:16021/api/v1/new/", ip), nil)
		if err != nil {
			return "", nil, err
		}

		res, err := http.DefaultClient.Do(req.WithContext(ctx))
		if err != nil {
			return "", nil, err
		}
		defer res.Body.Close()

		if res.StatusCode != 200 {
			return "", nil, errors.New(res.Status)
		}

		tokenResponse := TokenResponse{}
		err = json.NewDecoder(res.Body).Decode(&tokenResponse)
		if err != nil {
			return "", nil, err
		}

		token = tokenResponse.Token
	}

	return token, &deviceInfo, nil
}