using Aurora;
using Aurora.Api;
using Aurora.Api.Manager;
using Aurora.View;
using AuroraLaserScanner;
using CoreUnit.Scanner.UserControl.ScannerCanvas;
using ILSOS_PrismaticRD_PTOP.Device;
using ILSOS_PrismaticRD_PTOP.Recipes;
using ILSOS_PrismaticRD_PTOP.Sequences;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reactive.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Threading;
using VisionCommon;
using WeldingCommon;
using WeldingCommon.Alarm;
using WeldingCommon.Data;
using WeldingCommon.Devices;
using WeldingCommon.Popup;
using WeldingCommon.Sequences;
using WeldingCommon.Sequences.Main;
using WeldingCommon.Settings;
using WeldingCommon.Utils;
using WeldingCommon.Views;
using static ILSOS_PrismaticRD_PTOP.Device.PLCControllerPTOP;
using static WeldingCommon.Sequences.Main.SeqExecutePlcBitInterface_InitParam;
using static WeldingCommon.Views.UCCommonAutoRunViewModel;
using ILSOS_PrismaticRD_PTOP.Sequences;

namespace ILSOS_PrismaticRD_PTOP.Views
{
    public class UCMainAutoRunViewModel : UCCommonAutoRunViewModel
    {
        private readonly Logger Log = new Logger("UCMainAutoRunViewModel");

        public ICommand CMD_VisibleChanged { get; }
        public ICommand CMD_RunSequenceAutoRun { get; }
        public ICommand CMD_StopSequenceAutoRun { get; }
        public ICommand CMD_Reset { get; }      // Totoal Product, Today Product
        public ICommand CMD_AutoRunResume { get; } // 260621: bit15 모드전환 후 Auto 이어하기(Resume)

        private readonly IRecipeManager _RecipeManager;
        private readonly ISettingEntry _SettingEntry;
        private readonly IAlarmService _AlarmService;

        private SystemParameter _SystemParameter;
        private readonly Scanner _Scanner;
        private readonly PLCControllerPTOP _Plc;

        private ISequence _SeqAutoRun; // TestRun으로 우선 확인 후 

        private ISequence _SeqPlcInterface;

        private ISequence _SeqQTest;

        // 260605 현장 SeqAutoRunPTOP 
        private ISequence _SeqAutoRunPTOP; 

        public bool IsSequenceRunning_AutoRun { get => _IsSequenceRunning_AutoRun; set => SetProperty(ref _IsSequenceRunning_AutoRun, value); }
        private bool _IsSequenceRunning_AutoRun;

        public bool IsAlarm { get => _IsAlarm; set => SetProperty(ref _IsAlarm, value); }
        private bool _IsAlarm;

        private DateTime _NowDateTime;
        public DateTime NowDateTime { get => _NowDateTime; set => SetProperty(ref _NowDateTime, value); }

        public int CurrentPageNum { get => _CurrentPageNum; set => SetProperty(ref _CurrentPageNum, value); }
        private int _CurrentPageNum;

        // 260621: bit15(MODECHANGE) 팝업 — 상승엣지 래치 + 재진입 가드
        private bool _prevBit15 = false;
        private bool _isPopupOpen = false;

        // 260621: bit15 살아있을 때만 [AutoRun Resume] 버튼 표시
        public bool IsModeChangeActive { get => _IsModeChangeActive; set => SetProperty(ref _IsModeChangeActive, value); }
        private bool _IsModeChangeActive;

        public WeldingData CurrentWeldingData { get => Status.GetProcessingWeldingData(); }

        private readonly DispatcherTimer _MonitorTimer;

        public UCMainAutoRunViewModel(IAuroraEnvironment aurora, string sequenceId) : base(aurora, sequenceId)
        {
            _RecipeManager = _Aurora.RecipeManager;
            _SettingEntry = _Aurora.SettingEntry;
            _AlarmService = _Aurora.AlarmService;

            _SystemParameter = _Aurora.SettingEntry[CommonSettingIds.SystemParameter] as SystemParameter;
            _Scanner = _Aurora.DeviceManager[CommonDeviceIds.Scanner] as Scanner;
            _Plc = _Aurora.DeviceManager[CommonDeviceIds.PLCDevice] as PLCControllerPTOP;

            // MainViewModel에서 RunStateChanged를 설정해준다면, ManualView 상태에서도 해당 이벤트가 호출될지.. 호출될 듯 하긴 함.
            _SeqAutoRun = _Aurora.SequenceEntry[SequenceIds.SeqAutoRun];
            _SeqAutoRunPTOP = _Aurora.SequenceEntry[SequenceIds.SeqAutoRunPTOP]; // 260605 

            // Autorun과 Status 변경(Manual, Auto 변경) 시 사용하는 시퀸스ID가 다르도록 설정. 같을 경우, 문제 발생.
            _SeqPlcInterface = _Aurora.SequenceEntry[SequenceIds.SeqExecutePlcBitInterfaceForStatusChange];

            // Q Test
            _SeqQTest = _Aurora.SequenceEntry[SequenceIds.SeqEventQTest];
            InitVariable();

            CMD_VisibleChanged = new DelegateCommand(VisibleChanged);

            CMD_RunSequenceAutoRun = new DelegateCommand(OnAutoRunStartRequest); // 260511 이곳 시퀸스 
            CMD_StopSequenceAutoRun = new DelegateCommand(OnStopSequenceAutoRun);
            CMD_Reset = new DelegateCommand(PerformCmdReset);
            CMD_AutoRunResume = new DelegateCommand(OnAutoRunResume);

            _MonitorTimer = new DispatcherTimer();
            _MonitorTimer.Tick += OnMonitoring;
            _MonitorTimer.Interval = TimeSpan.FromMilliseconds(100);

            //이벤트로 AUTORUN 스타트 요청에 대한 메소드 실행 오면 그때 동작함. 시퀸스 돔 
            _Aurora.EventObservable.AsObservable(CommonEventIds.EVENT_AUTO_RUN_START_REQUEST)
                .ObserveOnDispatcher()
                .Subscribe(x => OnAutoRunStartRequest());

            // Stop 요청 시 정지 로직 실행
            _Aurora.EventObservable.AsObservable(CommonEventIds.EVENT_AUTO_RUN_STOP_REQUEST)
                .ObserveOnDispatcher()
                .Subscribe(x => OnStopSequenceAutoRun());

            _Aurora.EventObservable.AsObservable(CommonEventIds.EVENT_EQUIPMENT_STATUS_CHANGE)
                .Subscribe(x => IsSequenceRunning_AutoRun = Status.EquipmentStatus == eEqpStatus.Auto);

            Observable.Merge(
                _Aurora.EventObservable.AsObservable(AuroraSysEvent.SYS_ALARM_SET_ALARM),
                _Aurora.EventObservable.AsObservable(AuroraSysEvent.SYS_ALARM_RESET_ALARM),
                _Aurora.EventObservable.AsObservable(AuroraSysEvent.SYS_ALARM_RESET_ALL_ALARM))
                .Subscribe(x => IsAlarm = AlarmManager.HasAlarmLevelHigh());

            _Aurora.EventObservable.AsObservable(CommonEventIds.EVENT_CHANGE_RECIPE_INFO)
                  .ObserveOnDispatcher()
                  .Select(param => (RecipeInfo)param.Param)
                  .Subscribe(OnUpdateCurrentActivatedRecipe);

            _Aurora.EventObservable.AsObservable(CommonEventIds.EVENT_AUTO_RUN_UPDATE_PAGENUM)
                .ObserveOnDispatcher()
                .Subscribe(x => OnAutoRunUpdatePageNum(x));

            Status.SetWorkingPosition(eWorkingPosition.NONE);
        }


        private void InitVariable()
        {
            NowDateTime = DateTime.Now;

            if (NowDateTime.Day != _SystemParameter.LastProductTime.Day)
                InitializeTodayCount();

            CurrentWeldingData.TodayProduct = _SystemParameter.TodayProductCount;
            CurrentWeldingData.TotalProduct = _SystemParameter.TotalProductCount;
            CurrentWeldingData.AutoRunStartTime = default(DateTime);
            CurrentWeldingData.WeldingEndTime = _SystemParameter.LastProductTime;
            CurrentWeldingData.WeldingSpanTimeMilliseconds = "0";
            CurrentWeldingData.LotId = "Default_Lot_Id";
            CurrentWeldingData.CellId = "Default_Cell_Id";
        }

        private void OnUpdateCurrentActivatedRecipe(RecipeInfo info)
        {
            // Activate Layer 불러오기
            RecipeHelper.OnActiveReloaded();

            // Page UI 업데이트
            RecipeHelper.UpdateAutorunRecipe();
        }

        private void OnAutoRunUpdatePageNum(EventMessage x)
        {
            if (x.Param is int pageIdx)
            {
                CurrentPageNum = pageIdx + 1;
            }
        }
        private void VisibleChanged(object obj)
        {
            bool visible = (bool)obj;
            if (visible)
            {
                _MonitorTimer.Start();
            }
            else
            {
                _MonitorTimer.Stop();
            }
        }

        private void OnMonitoring(object sender, EventArgs e)
        {
            // 켜져있는 상태에서는 24시 넘어갈 때만 초기화
            if (NowDateTime.Day != DateTime.Now.Day)
                InitializeTodayCount();

            NowDateTime = DateTime.Now;

            // 260621: PLC bit15(MODECHANGE) 상승엣지 → Recipe/Page 확인 팝업 → Auto→Manual 잠시 전환
            if (_Plc == null || _Plc.IsSimul) return;
            // 음극/양극 어느 쪽이 줘도 트리거 (AutoRun이 두 극을 함께 쓰는 구조와 동일)
            bool bit15 = _Plc.ReadBit(eBitInput.PLC_MODE_CHANGE).data
                      || _Plc.ReadBit(eBitInput.PLC_MODE_CHANGE_P).data;
            IsModeChangeActive = bit15;   // bit15 살아있을 때만 [AutoRun Resume] 버튼 표시
            if (bit15 && !_prevBit15 && !_isPopupOpen)
            {
                short r = _Plc.ReadWord(eWordInput.PLC_RECIPE_NO).data;
                short p = _Plc.ReadWord(eWordInput.PLC_PAGE_NO).data;
                ShowRecipePageConfirmAndSwitchManual(r, p);
            }
            _prevBit15 = bit15;
        }

        // 260621: bit15 모드전환 — 정지(상태보존) → 안내 팝업 → Auto→Manual (작업자 가변 용접 수동 진행)
        private void ShowRecipePageConfirmAndSwitchManual(short recipeNo, short pageNo)
        {
            _isPopupOpen = true;
            try
            {
                // 정지 시 에코 워드(PC_RECIPE_NO/PC_PAGE_NO)·활성 레시피 보존 (OnSeqActionStop이 워드 0 안 씀)
                SeqAutoRunPTOP.ResumeMode = true;

                if (_SeqAutoRunPTOP.RunState == SequenceRunState.Running)
                    _SeqAutoRunPTOP.Stop();

                // 정지 후 안내 팝업 (OK-only 모달, [확인]까지 블로킹). FindStrToken 우회 위해 MessageDialog 직접 호출.
                string msg = $"Recipe No : {recipeNo}\nPage No : {pageNo}\n\n용접 위치 확인해주세요.";
                Aurora.Api.Control.MessageDialog.Show(Application.Current.MainWindow, "용접 위치 확인", msg);

                // [확인] 후 Auto → Manual (레시피는 이미 활성 → 재활성/롤백 안 함). 작업자가 가변 용접 직접 진행.
                Status.SetStatus(eEqpStatus.Manual);
                _Plc.WriteBit(eBitOutput.PC_AUTO_STATUS, false);
                _Plc.WriteBit(eBitOutput.PC_AUTO_STATUS_P, false);

                Log.I($"[Bit15] ModeChange → 정지(보존)·Manual 전환 (Recipe:{recipeNo}, Page:{pageNo})");
            }
            finally { _isPopupOpen = false; }
        }

        // 260621: [AutoRun Resume] — PC→PLC bit15 ON + Auto 이어하기 (ResumeMode 유지 → 핸드셰이크 스킵)
        private void OnAutoRunResume(object obj = null)
        {
            if (_Plc == null) return;
            if (!SeqAutoRunPTOP.ResumeMode)
            {
                MessageUtil.ShowWarningToast("Resume 상태가 아닙니다.");
                return;
            }
            // PC→PLC bit15(MODECHANGE) ON — resume run 신호 (한 사이클 완료 후 시퀀스가 OFF/해제)
            _Plc.WriteBit(eBitOutput.PC_MODE_CHANGE, true);
            _Plc.WriteBit(eBitOutput.PC_MODE_CHANGE_P, true);
            // Auto 복귀 (ResumeMode=true → CheckInitCondition에서 핸드셰이크 스킵하고 업로드→용접)
            _Plc.WriteBit(eBitOutput.PC_AUTO_STATUS, true);
            _Plc.WriteBit(eBitOutput.PC_AUTO_STATUS_P, true);
            Status.GetProcessingWeldingData().AutoRunStartTime = DateTime.Now;
            RunSequenceAutoRun();
            Log.I("[Bit15] AutoRun Resume → PC_MODE_CHANGE ON + Auto 이어하기(핸드셰이크 스킵)");
        }

        // PLC 비트에 의한 AutoRun 실행의 경우, PLC 인터페이스 이후 AutoRun 필요
        public override async void OnAutoRunStartRequest(object obj = null)
        {
            if (!ApproveAutorunByUserOrAuto()) { return; }

            SeqAutoRunPTOP.ResumeMode = false; // 일반 시작은 항상 핸드셰이크 포함 (resume 아님)
            base.OnAutoRunStartRequest();

            #region 팝업 띄우는 창과 함께 Bit false 
            bool IsStart = await TimerMessageBox.ShowAsync(Application.Current.MainWindow, "운전 시작", "자동 운전을 시작하시겠습니까?", true, 5000);
            if (!IsStart)
            {
                _Plc.WriteBit(eBitOutput.PC_AUTO_STATUS, false);
                _Plc.WriteBit(eBitOutput.PC_AUTO_STATUS_P, false); //양극
                return;
            }
            #endregion

            _Plc.WriteBit(eBitOutput.PC_AUTO_STATUS, true); // 음극
            _Plc.WriteBit(eBitOutput.PC_AUTO_STATUS_P, true); //양극

            // PLC에선 Auto Req 받으면 바로 살려주도록 

            Status.GetProcessingWeldingData().AutoRunStartTime = DateTime.Now;
            RunSequenceAutoRun();
        }

        private void RunSequenceAutoRun()
        {
            // 자동으로 Activated Recipe로 변경
            OnUpdateCurrentActivatedRecipe(null);

            //var param = new SeqAutoRunPrismatic_InitParam()
            //{
            //    VisionRecipeNo = 0
            //};

            var param = new SeqTeachingRun_InitParam()
            {
                IsObjectSelectAll = true,

            };

            Status.SetStatus(eEqpStatus.Auto);
            //_SeqAutoRun.Start(param, OnCompleteAutoRun);


            // 260605
            _SeqAutoRunPTOP.Start(param, OnCompleteAutoRunPTOP);

        }

        private void OnCompleteAutoRun(SequenceActionResult res)
        {
            if (res != null)
            {
                if (res.Param is SeqAutoRunPrismatic_OutParam result && result.Success == true)
                {
                    MessageUtil.ShowSuccessToast(string.Format("Success SeqAutoRunPrismatic"));
                    return;
                }
            }
            MessageUtil.ShowWarningToast(string.Format("Fail SeqAutoRunPrismatic"));
        }
        #region 260605
        private void OnCompleteAutoRunPTOP(SequenceActionResult res)
        {
            if (res != null)
            {
                // OutParam 타입을 SeqAutoRunPTOP_OutParam으로 수정
                if (res.Param is SeqAutoRunPTOP.SeqAutoRunPTOP_OutParam result && result.Success == true)
                {
                    MessageUtil.ShowSuccessToast(string.Format("Success SeqAutoRunPTOP"));
                    return;
                }
            }
            MessageUtil.ShowWarningToast(string.Format("Fail SeqAutoRunPTOP"));
        }
        #endregion

        private bool ApproveAutorunByUserOrAuto()
        {
            // [테스트용] 알람/인터락 체크 일시 주석 처리
            /*
            bool boolian = AlarmManager.HasAlarmLevelHigh();

            if (boolian)
            {
                Log.E($"Clear Heavy Alarms For Welding!");
                MessageUtil.ShowWarningToast(string.Format("Clear Heavy Alarms For Welding!"));
                return false;
            }

            boolian = AlarmManager.IsPlcDoorOpen();
            if (boolian)
            {
                Log.E($"PLC Door Opened!! Can't Weld Now.");
                MessageUtil.ShowWarningToast(string.Format("Close Door ! Clear PLC DoorInterlock!"));
                return false;
            }

            boolian = AlarmManager.IsPlcEmoAlarm();
            if (boolian)
            {
                Log.E($"PLC EMO Pushed!! Can't Weld Now.");
                MessageUtil.ShowWarningToast(string.Format("Clear PLC EMO Status!"));
                return false;
            }

            if (VisionRecipeManager.GetFovInfos().Count == 0)
            {
                MessageUtil.ShowWarningToast(string.Format("Please check the Vision Recipe of the currently active Recipe."));
                return false;
            }
            */

        
            if (_SeqAutoRunPTOP.RunState == SequenceRunState.Running)
            {
                MessageUtil.ShowWarningToast(string.Format("이미 시퀀스가 Start 상태입니다.", "SeqAutoRunPTOP"), Log);
                return false;
            }
            return true;
        }

        public override void OnAutoRunStopRequest()
        {
            base.OnAutoRunStopRequest();
            //// Prewelding은 자동 운전 정지 와도 무시
            //StopSequenceAutoRun();
        }

        private void OnStopSequenceAutoRun(object obj = null)
        {
            //if (_SeqAutoRun.RunState == SequenceRunState.Running)
            //    _SeqAutoRun.Stop();

     


            if (_SeqAutoRunPTOP.RunState == SequenceRunState.Running)
                _SeqAutoRunPTOP.Stop();

            Status.SetStatus(eEqpStatus.Manual);

            _Plc.WriteBit(eBitOutput.PC_AUTO_STATUS, false);
            _Plc.WriteBit(eBitOutput.PC_AUTO_STATUS_P, false);

            //Recipe를 기존에 선택된 Recipe로 Rollback 해 줌
            RecipeHelper.RollbackRecipe();
            //AutoRun 정지 시 CorrectionFile을 Vision으로 변경
            _Scanner.SelectCorrectionTable(1);

            Log.I("Stop AutoRun Requested and Cleaned up.");
        }

        private void PerformCmdReset(object commandParameter)
        {
            // SystemParameter를 저장하기 전에는 반드시 업데이트를 해주어야 한다.
            _SystemParameter = _Aurora.SettingEntry[CommonSettingIds.SystemParameter] as SystemParameter;

            switch ((string)commandParameter)
            {
                case "TotalProduct":
                    {
                        CurrentWeldingData.TotalProduct = 0;
                        _SystemParameter.TotalProductCount = CurrentWeldingData.TotalProduct;
                        Status.GetProcessingWeldingData().TotalProduct = 0;

                        _SettingEntry.Save(CommonSettingIds.SystemParameter, _SystemParameter, "UCMainAutoRunViewModel");
                    }
                    break;

                case "TodayProduct":
                    {
                        CurrentWeldingData.TodayProduct = 0;
                        _SystemParameter.TodayProductCount = CurrentWeldingData.TodayProduct;
                        Status.GetProcessingWeldingData().TodayProduct = 0;

                        _SettingEntry.Save(CommonSettingIds.SystemParameter, _SystemParameter, "UCMainAutoRunViewModel");
                    }
                    break;

                default:
                    return;
            }
        }

        private void InitializeTodayCount()
        {
            // SystemParameter를 저장하기 전에는 반드시 업데이트를 해주어야 한다.
            // SystemParameter에 저장된 값 불러오기
            _SystemParameter = _Aurora.SettingEntry[CommonSettingIds.SystemParameter] as SystemParameter;

            CurrentWeldingData.TodayProduct = 0;
            _SystemParameter.TodayProductCount = CurrentWeldingData.TodayProduct;
            _SettingEntry.Save(CommonSettingIds.SystemParameter, _SystemParameter, "UCMainAutoRunViewModel");
        }
    }

    enum InputType
    {
        keyboardInput,
        ClickInput
    }
}