package config

import (
	"encoding/json"
	"time"
)

func (d *Duration) UnmarshalJSON(b []byte) error {
	var s string
	if err := json.Unmarshal(b, &s); err == nil {
		v, parseErr := time.ParseDuration(s)
		if parseErr != nil {
			return parseErr
		}
		*d = Duration(v)
		return nil
	}

	var n int64
	if err := json.Unmarshal(b, &n); err != nil {
		return err
	}
	*d = Duration(time.Duration(n))
	return nil
}

func (d Duration) MarshalJSON() ([]byte, error) {
	return json.Marshal(time.Duration(d).String())
}

type Duration time.Duration