// Package lsa
// @Author: Wang Feng
// @Description:
// @Version: 0.1.0
// @Date: 2022/3/10 10:39
// @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
//

package route

import (
	"math"
	"minlib/component"
	"minlib/encoding"
	"mlsr/extensions"
)

const (
	DEFAULT_LINK_COST = 10
	NON_ADJACENT_COST = math.MaxUint64
)

//
//  RouteCost
//  @Description: 链路开销
//
type RouteCost struct {
	component.CommonUint64
}

//
//  RouteCost
//  @Description: 获取开销
//  @receiver l
//  @return uint64
//
func (l *RouteCost) Cost() uint64 {
	return l.CommonUint64.Value()
}

//
//  SetRouteCost
//  @Description: 设置开销
//  @receiver l
//  @param linkCost
//
func (l *RouteCost) SetRouteCost(linkCost uint64) {
	l.CommonUint64.SetValue(linkCost)
}

//
//  WireEncode
//  @Description: 线速编码
//  @receiver l
//  @param encoder
//  @return int
//  @return error
//
func (l *RouteCost) WireEncode(encoder *encoding.Encoder) (int, error) {
	l.CommonUint64.SetTlvType(extensions.TlvMlsrRouteCost)
	return l.CommonUint64.WireEncode(encoder)
}

//
//  WireDecode
//  @Description: 线速解码
//  @receiver l
//  @param block
//  @return error
//
func (l *RouteCost) WireDecode(block *encoding.Block) error {
	// 检查type是否正确
	if err := encoding.ExpectType(block.GetType(), extensions.TlvMlsrRouteCost); err != nil {
		return err
	}
	return l.CommonUint64.WireDecode(block)
}