// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: MIT

package internal

import (
	"bytes"
	"strconv"
	"time"
)

// Duration just wraps time.Duration
type Duration struct {
	Duration time.Duration
}

// UnmarshalTOML parses the duration from the TOML config file
func (d *Duration) UnmarshalTOML(b []byte) error {
	var err error
	b = bytes.Trim(b, `'`)

	// see if we can directly convert it
	d.Duration, err = time.ParseDuration(string(b))
	if err == nil {
		return nil
	}

	// Parse string duration, ie, "1s"
	if uq, err := strconv.Unquote(string(b)); err == nil && len(uq) > 0 {
		d.Duration, err = time.ParseDuration(uq)
		if err == nil {
			return nil
		}
	}

	// First try parsing as integer seconds
	sI, err := strconv.ParseInt(string(b), 10, 64)
	if err == nil {
		d.Duration = time.Second * time.Duration(sI)
		return nil
	}
	// Second try parsing as float seconds
	sF, err := strconv.ParseFloat(string(b), 64)
	if err == nil {
		d.Duration = time.Second * time.Duration(sF)
		return nil
	}

	return nil
}