package broadcast

import (
	"bytes"
	"context"
	"fmt"
	"io"
	"net"
	"pbx-api-gin/internal/app/ami/action"
	"pbx-api-gin/internal/app/stc/active"
	msgdata "pbx-api-gin/internal/app/stc/data"
	"pbx-api-gin/internal/app/stc/priority"
	alstatus "pbx-api-gin/internal/app/stc/sendstatus"
	"pbx-api-gin/pkg/utils"
	"strconv"
	"time"
)

var tagLog = 0

func HandleStcCmd(ctx context.Context, conn net.Conn) {

	for {
		select {
		case <-ctx.Done():
			return

		default:
			var buf bytes.Buffer
			tmp := make([]byte, 1024)

			if conn != nil {
				n, err := conn.Read(tmp)
				if err != nil {
					if err != io.EOF {
						conn.Close()
					}
					return
				}
				buf.Write(tmp[:n])
			}
			//lfshook.NewLogger().Logger.Infof("buf:%x==============================", buf.Bytes())
			for {
				packet, err := msgdata.ExtractPacket(&buf)
				if err != nil {
					utils.LoggerDebug.Printf("Parse error: %v, resetting buffer", err)
					buf.Reset() // 解析失败，清空避免污染
					break
				}
				if packet == nil {
					break // 当前无完整包，等待下次 ReadFrom
				}
				//处理 packet...
				go processPacket(packet)
			}

		}
	}
}

// 处理单个数据包（原 switch 逻辑迁移过来）
func processPacket(packet []byte) {

	if len(packet) < 6 {
		utils.LoggerDebug.Printf("Get data wrong length from STC ! Data:%x", packet)
		return
	}

	//for recv data log debug
	if packet[5] != 0x0b && packet[5] != 0x09 {
		utils.LoggerDebug.Printf("Get data from STC:%x", packet)
	}

	//重联模式判断
	if packet[5] == 0x0b {
		active.TrainUnionID = int(packet[8])
		active.TrainUnionMaster = int(packet[9])
		active.TrainUnionMode = int(packet[10])

		if active.TrainUnionID != 0 {
			utils.LoggerDebug.Printf("active.TrainUnionID:%x  active.TrainUnionMaster:%x  active.TrainUnionMode:%x ", active.TrainUnionID, active.TrainUnionMaster, active.TrainUnionMode)
		}

		if active.TrainUnionMode == 1 && active.TrainUnionMaster == 1 { //尾--头，重联主车，6车服务器停用
			if active.CabNum == "6" {
				return
			}
		} else if active.TrainUnionMode == 1 && active.TrainUnionMaster == 2 { //尾--头，重联从车，1车服务器停用
			if active.CabNum == "1" {
				return
			}
		} else if active.TrainUnionMode == 2 && active.TrainUnionMaster == 1 { //尾--尾，重联主车，6车服务器停用
			if active.CabNum == "6" {
				return
			}
		} else if active.TrainUnionMode == 2 && active.TrainUnionMaster == 2 { //尾--尾,重联从车，6车服务器停用
			if active.CabNum == "6" {
				return
			}
		} else if active.TrainUnionMode == 3 && active.TrainUnionMaster == 1 { //头--头，重联主车，1车服务器停用
			if active.CabNum == "1" {
				return
			}
		} else if active.TrainUnionMode == 3 && active.TrainUnionMaster == 2 { //头--头,重联从车，1车服务器停用
			if active.CabNum == "1" {
				return
			}
		} else if active.TrainUnionMode == 4 && active.TrainUnionMaster == 1 { //头--尾，重联主车，1车服务器停用
			if active.CabNum == "1" {
				return
			}
		} else if active.TrainUnionMode == 4 && active.TrainUnionMaster == 2 { //头--尾,重联从车，6车服务器停用
			if active.CabNum == "6" {
				return
			}
		}
	}

	//check if Master role
	if !active.Master {
		if tagLog == 0 {
			utils.LoggerDebug.Printf("Not Master Role , Ignore all data from STC !")
			tagLog = 1
		}
		return
	}
	tagLog = 0

	switch packet[5] {
	case 0x01: //心跳
		return

	case 0x02: // 自动报站

		if priority.CheckPriority("STNA") {
			action.HangupTask()
			StationAnnAuto(packet[8:])
		} else {
			alstatus.PaStatus("", "STNA", "refuse")
		}

	case 0x03: // 手动报站
		if priority.CheckPriority("STNS") {
			action.HangupTask()
			StationAnnAuto(packet[8:])
		} else {
			alstatus.PaStatus("", "STNS", "refuse")
		}

	case 0x04: // 手动服务消息、紧急广播
		if priority.CheckPriority("SVM") {
			action.HangupTask()
			EmgMsg(packet[8:])
		} else {
			alstatus.PaStatus("", "SVM", "refuse")
		}

	case 0x05: // STOP
		AnnStop([4]byte{packet[8], packet[9], packet[10], packet[11]})

	//case 0x06: // 关门提示(预留)
	//DoorStatusNotice(packet[8:])
	//case 0x07: // 司机室位置(预留)

	case 0x08: // EED报警
		EEDAlarm(packet[8:])
		//case 0x09: // 列车运行模式(预留)
		//	RuningStatus(packet[8:])

		//case 0x0a:（预留）

		//case 0x0b: // 重联方式
		//	active.TrainUnionMode = int(packet[9])
	}
}

// EED报警，激活报警器到队列
func EEDAlarm(data []byte) {
	cab := data[0]
	pos := data[1]

	alarm := fmt.Sprintf("7%02d%d", cab, pos)
	//utils.LoggerDebug.Printf("Type:STN	FileName:%x	Count:%x	SpecialVoice:%+v	Interval:%+v", filename, cycleCount, specialVoice, delay)
	action.Dial(alarm, "0300", "queues", "", "")
}

// DSN ,开关门提示
func DoorStatusNotice(data []byte) (err error) {

	delay := data[0]
	cycleCount := data[1]
	FileLen := int(data[2])
	filename := msgdata.SubstrByRune(string(data[3:]), 0, int(FileLen)-4)

	//utils.LoggerDebug.Printf("Type:STN	FileName:%x	Count:%x	SpecialVoice:%+v	Interval:%+v", filename, cycleCount, specialVoice, delay)

	action.PlaybackPacu(strconv.Quote(filename), int(cycleCount), int(delay), "DCS")
	return nil
}

// APA , 自动报站广播
func StationAnnAuto(data []byte) (err error) {

	//StationStatus := int(data[0])
	filelen := data[1]
	filename := msgdata.SubstrByRune(string(data[2:]), 0, int(filelen)-4)

	//utils.LoggerDebug.Printf("Type:STN	FileName:%x	Count:%x	SpecialVoice:%+v	Interval:%+v", filename, cycleCount, specialVoice, delay)

	action.PlaybackPacu(strconv.Quote(filename), 1, 0, "STNA")
	return nil
}

// SPA , 手动报站广播
func StationAnnManu(data []byte) (err error) {

	//StationStatus := int(data[0])
	filelen := data[1]
	filename := msgdata.SubstrByRune(string(data[2:]), 0, int(filelen)-4)

	//utils.LoggerDebug.Printf("Type:STN	FileName:%x	Count:%x	SpecialVoice:%+v	Interval:%+v", filename, cycleCount, specialVoice, delay)

	action.PlaybackPacu(strconv.Quote(filename), 1, 0, "STNS")
	return nil
}

// EMG ,紧急服务消息广播
func EmgMsg(data []byte) {
	delay := data[0]
	cycleCount := data[1]
	filelen := int(data[2])

	filename := msgdata.SubstrByRune(string(data[3:]), 0, filelen-4)

	utils.LoggerDebug.Printf("Type:EMG	FileName:%x	Count:%x	Interval:%+v", filename, cycleCount, delay)
	if int(cycleCount) == 255 {
		action.PlaybackPacu(strconv.Quote(filename), 9999999, int(delay), "SVM")
	} else {
		action.PlaybackPacu(strconv.Quote(filename), int(cycleCount), int(delay), "SVM")
	}
}

// 停止指定类型广播
func AnnStop(data [4]byte) {

	//lfshook.NewLogger().Logger.Infof("=========AnnStop Type  %x", data[0])
	utils.LoggerDebug.Printf("Stop PA Type:%x (自动报站=1,手动报站=2,服务信息=3)", data[0])

	switch data[0] {
	case 0x01: //停止自动广播（自动报站）
		taskInfo, ok := priority.RegistryTask.Get("STNA")
		if ok {
			action.ConfbridgeKick(taskInfo.ConfbridgeID, "all")
			action.Hangup(taskInfo.RunChannel)
		}
		time.Sleep(time.Millisecond * 100)

	case 0x02: //停止半自动广播（手动报站）
		taskInfo, ok := priority.RegistryTask.Get("STNS")
		if ok {
			action.ConfbridgeKick(taskInfo.ConfbridgeID, "all")
			action.Hangup(taskInfo.RunChannel)
		}
		time.Sleep(time.Millisecond * 100)

	case 0x03: //停止服务信息广播（紧急广播）
		taskInfo, ok := priority.RegistryTask.Get("SVM")
		if ok {
			action.ConfbridgeKick(taskInfo.ConfbridgeID, "all")
			action.Hangup(taskInfo.RunChannel)
		}
		time.Sleep(time.Millisecond * 100)
	}
}