package logic

import (
	"io"
	"net/http"
	"strings"
)

func GetAnilistAccessToken() (string, error) {
	if strings.HasPrefix(AnilistAccessToken, "ey") {
		return AnilistAccessToken, nil
	}

	if StoragePath == "" {
		return "", ErrAnilistTokenNotObtainable.New()
	} else if StorageUser == "" || StoragePass == "" {
		return "", ErrInvalidStorageParams.New()
	}

	req, err := http.NewRequest("GET", StoragePath, nil)
	if err != nil {
		return "", ErrStorageRequestFailed.Wrap(err)
	}

	req.SetBasicAuth(StorageUser, StoragePass)

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		return "", ErrStorageRequestFailed.Wrap(err)
	}
	defer resp.Body.Close()

	data, err := io.ReadAll(resp.Body)
	if err != nil {
		return "", ErrStorageRequestFailed.Wrap(err)
	}

	return strings.TrimSpace(string(data)), nil
}