package section

import (
	"container/list"
	"fmt"
	"sort"
	"strings"

	"joylink.club/bj-rtsts-server/ats/verify/simulation/wayside/face"
)

// 相邻计轴检测点(车档为特殊的计轴检测点)定义的计轴区段，由LinkSection组成
type AxleSectionModel struct {
	//计轴区段基本信息
	face.DeviceModel
	//计轴区段的A端的计轴检测点
	AxlePointA face.AxlePointDeviceModeller
	//计轴区段的B端的计轴检测点
	AxlePointB face.AxlePointDeviceModeller
	//如果该计轴区段经过岔区，则所经过的道岔应该所处的定反位
	//ref.SwitchPositionRef
	ViaSwitchPositions *list.List
	//PathLayer中收集: 该计轴区段经过的轨道
	//face.LinkSectionModeller
	ViaLinks *list.List
	//计轴区段的两侧计轴点的图形id形成的key
	pointsKey string
}

// 计轴区段的两侧计轴点的图形id形成的key
func (asm *AxleSectionModel) GetPointsKey() string {
	if len(strings.TrimSpace(asm.pointsKey)) == 0 {
		var pointsKeySlice = make([]string, 0, 2)
		pointsKeySlice = append(pointsKeySlice, asm.AxlePointA.GetGraphicId())
		pointsKeySlice = append(pointsKeySlice, asm.AxlePointB.GetGraphicId())
		sort.Strings(pointsKeySlice)
		asm.pointsKey = fmt.Sprintf("%s_%s", pointsKeySlice[0], pointsKeySlice[1])
	}
	return asm.pointsKey
}

// 计轴区段中轨道个数，即计轴区段是由几个轨道组成
func (asm *AxleSectionModel) LinksCount() int {
	if asm.ViaSwitchPositions == nil {
		return 1
	} else {
		return 1 + asm.ViaSwitchPositions.Len()
	}
}