// 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 beaconhttp

import (
	"encoding/json"
	"strconv"
)

type IntStr int

func (i IntStr) MarshalJSON() ([]byte, error) {
	return json.Marshal(strconv.FormatInt(int64(i), 10))
}

func (i *IntStr) UnmarshalJSON(b []byte) error {
	// Try string first
	var s string
	if err := json.Unmarshal(b, &s); err == nil {
		value, err := strconv.ParseInt(s, 10, 64)
		if err != nil {
			return err
		}
		*i = IntStr(value)
		return nil
	}

	// Fallback to number
	return json.Unmarshal(b, (*int)(i))
}
