package tcp

import (
	"time"

	md "github.com/go-gost/core/metadata"
	mdutil "github.com/go-gost/x/metadata/util"
)

const (
	dialTimeout = "dialTimeout"
)

const (
	defaultDialTimeout = 5 * time.Second
)

type metadata struct {
	dialTimeout time.Duration

	keepalive         bool
	keepaliveIdle     time.Duration
	keepaliveInterval time.Duration
	keepaliveCount    int
}

func (d *tcpDialer) parseMetadata(md md.Metadata) (err error) {
	d.md.keepalive = mdutil.GetBool(md, "keepalive")
	d.md.keepaliveIdle = mdutil.GetDuration(md, "keepalive.idle")
	d.md.keepaliveInterval = mdutil.GetDuration(md, "keepalive.interval")
	d.md.keepaliveCount = mdutil.GetInt(md, "keepalive.count")
	return
}