// Copyright 2024 The Erigon Authors
// This file is part of Erigon.
//
// Erigon is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Erigon is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Erigon. If not, see <http://www.gnu.org/licenses/>.

package health

import (
	"errors"
	"net/http"

	"github.com/erigontech/erigon/common/log/v3"
)

var (
	errNotSynced = errors.New("not synced")
)

func checkSynced(ethAPI EthAPI, r *http.Request) error {
	i, err := ethAPI.Syncing(r.Context())
	if err != nil {
		log.Root().Warn("unable to process synced request", "err", err.Error())
		return err
	}
	if i == nil || i == false {
		return nil
	}

	return errNotSynced
}
