package simulation

import (
	"net"
	"strings"

	"fmt"
	"go.uber.org/zap"
	"joylink.club/bj-rtsts-server/ats/verify/protos/state"
	"joylink.club/bj-rtsts-server/config"
	"joylink.club/bj-rtsts-server/dynamics"
	"net/http"
	"strconv"
	"sync"

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

var simulationId_prefix = (func() string {
	ip := "127.0.0.1"
	addrList, err := net.InterfaceAddrs()
	if err != nil {
		panic(err)
	}
	for _, address := range addrList {
		if ipNet, ok := address.(*net.IPNet); ok && !ipNet.IP.IsLoopback() {
			if ipNet.IP.To4() != nil {
				ip = ipNet.IP.String()
			}
		}
	}
	ipArr := strings.Split(ip, ".")
	return ipArr[2] + "_" + ipArr[3]
})()

func init() {
	dynamics.RegisterTrainInfoHandler(func(info *dynamics.TrainInfo) {
		for _, simulation := range GetSimulationArr() {
			sta, ok := simulation.Memory.Status.TrainStateMap.Load(strconv.Itoa(int(info.Number)))
			if ok {
				memory.UpdateTrainState(simulation, convert(info, *sta.(*state.TrainState)))
				break
			}
		}
	})
}

// 仿真存储集合
var simulationMap sync.Map

// 创建仿真对象
func CreateSimulation(mapId int32) string {
	simulationId := createSimulationId(mapId)
	_, e := simulationMap.Load(simulationId)
	if !e {
		////通知动力学
		//httpCode, _, err := dynamics.SendSimulationStartReq()
		//if httpCode != http.StatusOK || err != nil {
		//	panic(dto.ErrorDto{Code: dto.LogicError, Message: fmt.Sprintf("动力学接口调用失败：[%d][%s]", httpCode, err)})
		//}
		verifySimulation := memory.CreateSimulation(mapId, simulationId)
		simulationMap.Store(simulationId, verifySimulation)
		//道岔状态发送
		startSendTurnoutInfo(simulationId, verifySimulation)
	}
	return simulationId
}

// 删除仿真对象
func DestroySimulation(simulationId string) {
	//移除道岔状态发送
	dynamics.RemoveTurnoutInfoSource(simulationId)
	//通知动力学
	httpCode, _, err := dynamics.SendSimulationEndReq()
	if httpCode != http.StatusOK || err != nil {
		panic(dto.ErrorDto{Code: dto.LogicError, Message: fmt.Sprintf("动力学接口调用失败：[%d][%s]", httpCode, err)})
	}
	simulationMap.Delete(simulationId)
}

// 创建时生成仿真Id
func createSimulationId(mapId int32) string {
	// 当前服务器IP + 端口 + 地图
	return simulationId_prefix + "_" + strconv.Itoa(config.Config.Server.Port) + "_" + strconv.Itoa(int(mapId))
}

// 获取仿真列表
func ListAllSimulations() []*dto.SimulationInfoRepDto {
	simArr := []*dto.SimulationInfoRepDto{}
	simulationMap.Range(func(k, v any) bool {
		s := v.(*memory.VerifySimulation)
		simArr = append(simArr, &dto.SimulationInfoRepDto{
			SimulationId: s.SimulationId,
			MapId:        strconv.Itoa(int(s.MapId)),
		})
		return true
	})
	return simArr
}

// 根据仿真id查找仿真实例
func FindSimulation(simulationId string) *memory.VerifySimulation {
	m, e := simulationMap.Load(simulationId)
	if e {
		return m.(*memory.VerifySimulation)
	}
	return nil
}

// 获取普通仿真数组
func GetSimulationArr() []*memory.VerifySimulation {
	result := []*memory.VerifySimulation{}
	simulationMap.Range(func(k, v any) bool {
		result = append(result, v.(*memory.VerifySimulation))
		return true
	})
	return result
}

func convert(info *dynamics.TrainInfo, sta state.TrainState) *state.TrainState {
	sta.HeadLinkId = strconv.Itoa(int(info.Link))
	sta.HeadLinkOffset = int64(info.LinkOffset * 10)
	sta.Slope = int32(info.Slope)
	sta.Upslope = info.UpSlope
	sta.RunningUp = info.Up
	sta.RunningResistanceSum = float32(info.TotalResistance) / 1000
	sta.AirResistance = float32(info.AirResistance) / 1000
	sta.RampResistance = float32(info.SlopeResistance) / 1000
	sta.CurveResistance = float32(info.CurveResistance) / 1000
	sta.Speed = info.Speed * 3.6
	sta.HeadSensorSpeed1 = info.HeadSpeed1 * 3.6
	sta.HeadSensorSpeed2 = info.HeadSpeed2 * 3.6
	sta.TailSensorSpeed1 = info.TailSpeed1 * 3.6
	sta.TailSensorSpeed2 = info.TailSpeed2 * 3.6
	sta.HeadRadarSpeed = info.HeadRadarSpeed * 3.6
	sta.TailRadarSpeed = info.TailRadarSpeed * 3.6
	return &sta
}

func startSendTurnoutInfo(simulationId string, verifySimulation *memory.VerifySimulation) {
	dynamics.AddTurnoutInfoSource(simulationId, func() []*dynamics.TurnoutInfo {
		stateSlice := memory.GetAllTurnoutState(verifySimulation)
		var turnoutInfoSlice []*dynamics.TurnoutInfo
		for _, sta := range stateSlice {
			code64, err := strconv.ParseUint(sta.Id, 10, 16)
			if err != nil {
				zap.S().Error("id转uint16报错", err)
			}
			info := dynamics.TurnoutInfo{
				Code:      uint16(code64),
				NPosition: sta.Normal,
				RPosition: sta.Reverse,
			}
			turnoutInfoSlice = append(turnoutInfoSlice, &info)
		}
		return turnoutInfoSlice
	})
}