package ts

import (
	"fmt"
	"log/slog"
	"runtime"
	"strconv"
	"sync"

	"joylink.club/bj-rtsts-server/third_party/can_btm"
	cidcmodbus "joylink.club/bj-rtsts-server/third_party/cidc_modbus"

	"joylink.club/bj-rtsts-server/third_party/axle_device"
	"joylink.club/bj-rtsts-server/third_party/electrical_machinery"

	"joylink.club/bj-rtsts-server/message_server"
	"joylink.club/bj-rtsts-server/mqtt"
	"joylink.club/bj-rtsts-server/sys_error"
	"joylink.club/bj-rtsts-server/third_party/dynamics"
	"joylink.club/bj-rtsts-server/third_party/interlock"
	"joylink.club/bj-rtsts-server/third_party/semi_physical_train"
	"joylink.club/bj-rtsts-server/ts/simulation/wayside/memory"

	"joylink.club/bj-rtsts-server/dto"
	rtss_simulation "joylink.club/rtsssimulation"
)

// 仿真存储集合
var simulationMap sync.Map

// 创建前检查
func IsExistSimulation() bool {
	i := 0
	simulationMap.Range(func(_, _ any) bool {
		i++
		return true
	})
	return i > 0
}

// 创建仿真对象
func CreateSimulation(projectId int32, mapIds []int32, runConfig *dto.ProjectRunConfigDto) (string, error) {
	simulationId := createSimulationId(projectId)
	_, e := simulationMap.Load(simulationId)
	if !e && IsExistSimulation() {
		return "", sys_error.New("一套环境同时只能运行一个仿真")
	}
	if !e {
		verifySimulation, err := memory.CreateSimulation(projectId, mapIds, runConfig)
		if err != nil {
			return "", err
		}
		verifySimulation.SimulationId = simulationId
		// world构建
		err = initWorld(verifySimulation)
		if err != nil {
			return "", err
		}
		// 第三方服务处理
		err = runThirdParty(verifySimulation)
		if err != nil {
			verifySimulation.World.Close()
			return "", err
		}
		simulationMap.Store(simulationId, verifySimulation)
		// verifySimulation.Start()
		// 全部成功，启动仿真
		verifySimulation.World.StartUp()
		// 启动仿真消息服务
		message_server.Start(verifySimulation)
	}
	return simulationId, nil
}

// 删除仿真对象
func DestroySimulation(simulationId string) {
	s, e := simulationMap.Load(simulationId)
	if !e {
		return
	}
	simulationMap.Delete(simulationId)
	simulationInfo := s.(*memory.VerifySimulation)
	// simulationInfo.Destroy()
	// 停止ecs world
	simulationInfo.World.Close()
	message_server.Close(simulationInfo)
	// 发布销毁消息
	message_server.PubSimulationDestroyMsg(simulationId)
	// 停止第三方
	stopThirdParty(simulationInfo)
}

// 创建world
func initWorld(s *memory.VerifySimulation) error {
	//创建仿真
	w, err := rtss_simulation.NewSimulation(s.Repo)
	if err != nil {
		return sys_error.New(fmt.Sprintf("仿真创建失败: %s", err), err)
	}
	s.World = w
	// 保证World关闭
	runtime.SetFinalizer(s, func(verifySimulation *memory.VerifySimulation) {
		slog.Info("---关闭仿真World---")
		verifySimulation.World.Close()
	})
	return nil
}

// 运行仿真第三方模块
func runThirdParty(s *memory.VerifySimulation) error {
	// 动力学启动
	err := dynamics.Default().Start(s)
	if err != nil {
		return err
	}
	// 半实物启动
	semi_physical_train.Default().Start(s)
	// 联锁启动
	for _, c := range s.GetInterlockCodes() {
		interlock.Default(c).Start(s)
	}
	// 计轴RSSP启动
	axle_device.StartLineAllRsspAxleServices(s)
	// 电机UDP启动
	electrical_machinery.Default().Start(s)
	// 车载BTM启动
	can_btm.Default().Start(s)
	// 联锁驱采Modbus服务启动
	err = cidcmodbus.Start(s)
	if err != nil {
		return err
	}
	return nil
}

// 停止仿真
func stopThirdParty(s *memory.VerifySimulation) {
	// 停止动力学接口功能
	dynamics.Default().Stop()
	// 停止半实物
	semi_physical_train.Default().Stop()
	// 联锁启动
	for _, c := range s.GetInterlockCodes() {
		interlock.Default(c).Stop()
	}
	//计轴RSSP启动销毁
	axle_device.StopLineAllRsspAxleServices()
	// 电机UDP停止
	electrical_machinery.Default().Stop()
	// 车载BTM停止
	can_btm.Default().Stop()
	// 联锁驱采Modbus服务停止
	cidcmodbus.Stop()
}

func createSimulationId(projectId int32) string {
	// MQTT客户端id+项目
	return mqtt.GetClientId() + "_" + strconv.Itoa(int(projectId))
}

// 获取仿真列表
func ListAllSimulations() []*dto.SimulationInfoRspDto {
	var simArr []*dto.SimulationInfoRspDto
	simulationMap.Range(func(_, v any) bool {
		s := v.(*memory.VerifySimulation)
		simArr = append(simArr, &dto.SimulationInfoRspDto{
			SimulationId:       s.SimulationId,
			MapId:              s.MapIds[0],
			MapIds:             s.MapIds,
			ProjectId:          s.ProjectId,
			ProjectRunConfigId: s.GetRunConfigId(),
		})
		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
}