package anilist

import (
	"encoding/json"
	"errors"
	"net/http"
)

type apiError struct {
	Message string `json:"message"`
	Status  int    `json:"status"`
}

type apiErrResp struct {
	Errors []apiError `json:"errors"`
}

func handleError(resp *http.Response) error {
	respObj := &apiErrResp{}

	dec := json.NewDecoder(resp.Body)
	err := dec.Decode(respObj)
	if err != nil {
		return err
	}

	if len(respObj.Errors) == 0 {
		return errors.New("unknown API error")
	}

	return errors.New(respObj.Errors[0].Message)
}