package can_btm

import (
	"fmt"
	"joylink.club/bj-rtsts-server/const/balise_const"
	"joylink.club/bj-rtsts-server/dto/state_proto"
	"joylink.club/rtsssimulation/repository"
	"strings"
	"sync"
)

var baliseLock = &sync.Mutex{}

func IsLine12(train *state_proto.TrainState) bool {
	if strings.Contains(train.ProjectCode, "12") {
		return true
	}
	return false
}
func AddNewExpectedBalise(balise *repository.Transponder, btmCache *state_proto.TrainBtmCache, telegram, userTelegram []byte, isLine12 bool) bool {
	baliseLock.Lock()
	defer baliseLock.Unlock()
	bl := btmCache.BaliseList
	for _, tt := range bl {
		if tt != nil && tt.BaliseId == balise.Id() {
			return false
		}
	}
	for i := 1; i < len(bl); i++ {
		bl[i-1] = bl[i]
	}
	unpack := false
	bc := BaliseCounterAdd(btmCache.BaliseCount, isLine12)
	mc := btmCache.MessageCounter
	if userTelegram != nil && len(userTelegram) > 0 {
		mc = uint32(BaliseCounterAdd(mc, isLine12))
		unpack = true
	}

	btmCache.BaliseCount = uint32(bc)
	btmCache.MessageCounter = mc
	btmS := &state_proto.BTMState{BaliseId: balise.Id(),
		Telegram:    fmt.Sprintf("%x", userTelegram),
		Telegram128: fmt.Sprintf("%X", telegram),
		Unpack:      unpack,
		BaliseType:  int32(balise.BaliseType().Number()),
		AboveBalise: true, HasData: true}

	if userTelegram == nil || len(userTelegram) == 0 {
		btmS.Telegram = strings.Repeat("00", balise_const.UserTelegramByteLen)
		btmS.Telegram128 = strings.Repeat("00", balise_const.TelegramByteLen)
		btmS.HasData = false
	}
	//存入队尾
	bl[len(bl)-1] = btmS
	return true
}

// HandleTrainHeadPositionInfoForTrain 处理列车位置信息
// 参数1： 参数2：发送序列号，参数3：应答器计数（每过一个应答器加一，在同一个应答器内不变)，参数4：报文计数器 (每解出一个报文加一)（0~255）
func FindBaliseResend(train *state_proto.TrainState) (*state_proto.BTMState, byte, byte, byte) {
	baliseLock.Lock()
	defer baliseLock.Unlock()
	cache := train.BtmBaliseCache
	for _, balise := range cache.BaliseList {
		if balise != nil && balise.BaliseId == cache.ResendBaliseId && balise.ResendCount < 3 {
			balise.ResendCount++
			ndsn := BaliseCounterAdd(cache.Dsn, IsLine12(train))
			cache.Dsn = uint32(ndsn)
			return balise, ndsn, byte(cache.BaliseCount), byte(cache.MessageCounter)
		}
	}
	ndsn := BaliseCounterAdd(cache.Dsn, IsLine12(train))
	return nil, ndsn, 0, 0
}
func FindBaliseByNotSend(train *state_proto.TrainState) (*state_proto.BTMState, byte, byte, byte) {
	baliseLock.Lock()
	defer baliseLock.Unlock()
	cache := train.BtmBaliseCache
	for _, btmCache := range cache.BaliseList {
		if btmCache != nil && !btmCache.IsSend {
			ndsn := BaliseCounterAdd(cache.Dsn, IsLine12(train))
			cache.Dsn = uint32(ndsn)
			cache.ResendBaliseId = btmCache.BaliseId
			return btmCache, ndsn, byte(cache.BaliseCount), byte(cache.MessageCounter)
		}
	}
	ndsn := BaliseCounterAdd(cache.Dsn, IsLine12(train))
	return nil, ndsn, 0, 0
}
func ClearBalise(train *state_proto.TrainState) {
	baliseLock.Lock()
	defer baliseLock.Unlock()
	train.BtmBaliseCache.BaliseList = make([]*state_proto.BTMState, 3)
}

// 11号线根据序列号查询
func FindBaliseByMessageSerial(train *state_proto.TrainState, ms byte) (*state_proto.BTMState, byte, bool) {
	baliseLock.Lock()
	defer baliseLock.Unlock()
	cache := train.BtmBaliseCache

	for _, btmCache := range cache.BaliseList {
		if btmCache != nil {
			if btmCache.BaliseId == cache.ResendBaliseId {
				if byte(btmCache.PackageDataSN) == ms {
					bt, dsn, _, _ := FindBaliseByNotSend(train)
					return bt, dsn, true
				} else {
					ndsn := BaliseCounterAdd(cache.Dsn, IsLine12(train))
					cache.Dsn = uint32(ndsn)
					return btmCache, ndsn, false
				}
			}
		}
	}

	bt, dsn, _, _ := FindBaliseByNotSend(train)
	return bt, dsn, true

}