/*
  * Copyright (c) 2025 LG Electronics Inc.
   * SPDX-License-Identifier: LicenseRef-LGE-Proprietary
   */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Input;
using Aurora.Api;
using Aurora.Api.DataType;
using Aurora.View;
using MilCommon;
using VisionCommon;
using MilPattern;
using VisionCommonUI;
using VisionCommonUI.Resources;
using System.IO;
using Hermes;

namespace MilUI {
    public class OcrSettingViewModel : NotifyPropertyChangedBase {
        private Logger _logger = new Logger(typeof(OcrSettingViewModel).Name);

        public ICommand CMD_VisibleChanged { get; }
        public ICommand CMD_Load { get; }
        public ICommand CMD_Edit_StrRead { get; }
        public ICommand CMD_Edit_OcrRead { get; }
        public ICommand CMD_Copy { get; }
        public ICommand CMD_Create { get; }
        public ICommand CMD_Save { get; }
        public ICommand CMD_Cancel { get; }
        public ICommand CMD_Delete { get; }
        public ICommand CMD_SetLight { get; }
        public ICommand CMD_SetPreProc { get; }
        public ICommand CMD_SetFindROI { get; }
        public ICommand CMD_FindPattern { get; }

        private PatternInfo _patternInfo;
        public PatternInfo PatternInfo { get => _patternInfo; set => SetProperty(ref _patternInfo, value); }

        private OcrRunParam _runParam;
        public OcrRunParam RunParam { get => _runParam; set => SetProperty(ref _runParam, value); }

        public bool IsSubPattern { get; set; }

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

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

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

        private IEnumerable<int> _fixturePatterns;
        public IEnumerable<int> FixturePatterns { get => _fixturePatterns; set => SetProperty(ref _fixturePatterns, value); }

        private PatternAgentBase _patternAgent;
        private CameraDisplay _milCameraDisplay;
        private FovInfo _fovInfo;
        private Window _childWindow = null;

        /// <summary>
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        /// </summary>
        public static Dictionary<PatternInfo, Action> _ExeExiteds = new Dictionary<PatternInfo, Action>();

        public OcrSettingViewModel(
            PatternAgentBase patternAgent, PatternInfo patternInfo, ICameraDisplay cameraDisplay, FovInfo fovInfo) {
            _patternAgent = patternAgent;
            _patternInfo = patternInfo;
            _milCameraDisplay = (CameraDisplay)cameraDisplay;
            _fovInfo = fovInfo;
            IsSubPattern = PatternConstants.IsSubPattern(_patternInfo.GetPatternIndex());

            CMD_VisibleChanged = new DelegateCommand(VisibleChanged);
            CMD_Load = new DelegateCommand(Load);
            CMD_Edit_StrRead = new DelegateCommand(Edit_StrRead);
            CMD_Edit_OcrRead = new DelegateCommand(Edit_OcrRead);
            CMD_Copy = new DelegateCommand(Copy);
            CMD_Create = new DelegateCommand(Create);
            CMD_Save = new DelegateCommand(Save);
            CMD_Cancel = new DelegateCommand(Cancel);
            CMD_Delete = new DelegateCommand(Delete);
            CMD_SetLight = new DelegateCommand(SetLight);
            CMD_SetPreProc = new DelegateCommand(SetPreProc);
            CMD_SetFindROI = new DelegateCommand(SetFindROI);
            CMD_FindPattern = new DelegateCommand(FindPattern);

            Update();
        }

        private void Update() {
            InitRegistered();
            InitRunParam();
            InitFixturePatterns();
            UpdateControlButtons(IsPatternRegistered);
        }

        public void InitRegistered() {
            IsPatternRegistered = _patternAgent.IsPatternExist(_patternInfo.GetPatternIndex());
        }

        public void InitRunParam() {
            RunParam = _patternAgent.GetRunParam(_patternInfo) as OcrRunParam;
        }

        public void InitFixturePatterns() {
            FixturePatterns = _patternAgent.GetFixturePatternIndexListForFov(_patternInfo);
        }

        private void UpdateControlButtons(bool isPatternRegistered) {
            IsPatternRegistered = isPatternRegistered;
            IsSubPatternRegistered = IsSubPattern && isPatternRegistered;
            IsSubPatternNotRegistered = IsSubPattern && !isPatternRegistered;
        }

        private void VisibleChanged(object obj) {
            bool visible = (bool)obj;
            if (visible == false) {
                ClosingWindow();
            }
        }

        private void Load(object obj) {
            var image = _milCameraDisplay.GetImage();
            if (image == null) {
                MessageBoxUtil.ShowMessageBoxError(StrTokens.MSG_E_ImageNotReady);
                return;
            }

            var subPatternDirPath = _patternInfo.GetSubPatternDirectoryPath();
            var contextDirPath = Path.Combine(_patternAgent.GetPatternInfoPath(), PatternConstants.DIR_NAME_PATTERN, subPatternDirPath);
            var fileName = Path.Combine(contextDirPath, "OcrTeachingImage.png");
            IpAdapter.Instance.IpEnvironment.SaveImage(fileName, image);
            System.Diagnostics.Process.Start(contextDirPath);
        }

        private void Edit_StrRead(object obj) {
            var exePath = @"C:\Program Files\Matrox Imaging\Tools\StringReader.exe";    // MIL ¼³Ä¡½Ã, Default °æ·Î
            StartExternalProcess(exePath, ".msr");
        }

        private void Edit_OcrRead(object obj) {
            var exePath = @"C:\Program Files\Matrox Imaging\Tools\OcrReader.exe";       // MIL ¼³Ä¡½Ã, Default °æ·Î
            StartExternalProcess(exePath, ".mfo");
        }

        private void StartExternalProcess(string exePath, string fileExtension) {
            var subPatternDirPath = _patternInfo.GetSubPatternDirectoryPath();
            var contextDirPath = Path.Combine(_patternAgent.GetPatternInfoPath(), PatternConstants.DIR_NAME_PATTERN, subPatternDirPath);

            // EX) "D:...\\_out\\x64-Debug\\_config_recipe\\recipe#1\\Pattern\\0\\0\\0\\7\\0\\Pattern.msr"
            var argPath = Path.Combine(contextDirPath, PatternConstants.FILE_NAME_PATTERN + fileExtension);

            if (!_ExeExiteds.ContainsKey(_patternInfo)) {
                _ExeExiteds.Add(_patternInfo, null);
                _ExeExiteds[_patternInfo] += () => { Application.Current.Dispatcher.Invoke(() => Reload()); };
            }
            ExternalProcessor.StartExternalProcess(exePath, argPath, _ExeExiteds[_patternInfo]);
        }

        private void Reload() {
            var pattern = _patternAgent.GetPattern(_patternInfo.GetPatternIndex());
            pattern.Load();
        }

        private void Copy(object obj) {
            var result = MessageBoxUtil.ShowMessageBoxQuestion(StrTokens.MSG_Q_CopyPatternZero);
            if (result == MessageBoxResult.Yes) {
                var mainPatternInfo = _patternAgent.GetMainPatternInfo(_patternInfo.GetPatternIndex());
                if (E1.OK == _patternAgent.CopyPattern(mainPatternInfo.GetPatternIndex(), _patternInfo.GetPatternIndex())) {
                    InitRunParam();
                    InitFixturePatterns();
                    UpdateControlButtons(true);
                    MessageBoxUtil.ShowMessageBoxOk(StrTokens.MSG_O_CopyCompleted);
                }
            }
        }

        private void Create(object obj) {
            if (!_patternAgent.IsPatternExist(_patternInfo.GetPatternIndex())) {
                if (E1.OK == _patternAgent.Create(_patternInfo) &&
                    E1.OK == _patternAgent.Save(_patternInfo)) {
                    InitRunParam();
                    InitFixturePatterns();
                    UpdateControlButtons(true);
                    MessageBoxUtil.ShowMessageBoxOk(StrTokens.MSG_O_RegisterCompleted);
                }
            }
        }

        private void Save(object obj) {
            if (_milCameraDisplay.HasFindRoi()) {
                RunParam.SetFindROI(_milCameraDisplay.GetFindRoi().Clone() as ROI);
            }
            _patternAgent.SetRunParam(_patternInfo, RunParam);
            _patternAgent.Save(_patternInfo);
            MessageBoxUtil.ShowMessageBoxOk(StrTokens.MSG_O_SaveCompleted);
        }

        private void Cancel(object obj) {
            ClosingWindow();
            CloseWindow(obj);
        }

        private void Delete(object obj) {
            var result = MessageBoxUtil.ShowMessageBoxQuestion(StrTokens.MSG_Q_Delete);
            if (result == MessageBoxResult.Yes) {
                if (_patternAgent.IsPatternExist(_patternInfo.GetPatternIndex())) {
                    if (E1.OK == _patternAgent.Remove(_patternInfo)) {
                        UpdateControlButtons(false);
                    }
                }
            }
        }

        private void ClosingWindow() {
            _milCameraDisplay.ClearFindGraphics();
        }

        private void CloseWindow(object obj) {
            var window = obj as Window;
            if (window != null) {
                window.Close();
            }
        }

        private void SetLight(object obj) {
            PatternLightWindowManager.ShowLightSettingWindow(_fovInfo, _patternInfo);
        }

        private void SetPreProc(object obj) {
            if (_childWindow == null) {
                _childWindow = new PreProcessingWindow(_patternInfo, _milCameraDisplay);
                (_childWindow as IPatternSettingWindow).ResetPosition();
                _childWindow.Closed += OnWindowClosed;
                _childWindow.Owner = Application.Current.MainWindow;
                _childWindow.Show();
            }
            else {
                ResetWindow();
            }
        }

        private void ResetWindow() {
            if (_childWindow.WindowState == WindowState.Minimized) {
                _childWindow.WindowState = WindowState.Normal;
            }

            (_childWindow as IPatternSettingWindow).ResetPosition();
        }

        private void OnWindowClosed(object sender, EventArgs e) {
            _childWindow = null;
        }

        private void SetFindROI(object obj) {
            var milImage = _milCameraDisplay.GetImage();
            if (milImage != 0) {
                var imageSize = MilEnvironment.GetImageSize(milImage);
                var findRoi = GetFindROIFromRunParam(imageSize, RunParam);
                _milCameraDisplay.AddFindRoi(findRoi);
            }
        }

        private ROI GetFindROIFromRunParam(ImageSize imageSize, OcrRunParam runParam) {
            if (runParam.IsValidFindRoi(imageSize)) {
                return runParam.GetFindRoi();
            }

            return new ROI(
                new ImagePoint(imageSize.Width * 0.5, imageSize.Height * 0.5),
                100, 300,
                Angle.CreateWithDegree(0));
        }

        private void FindPattern(object obj) {
            if (!_patternInfo.IsActivated) {
                MessageBoxUtil.ShowMessageBoxError(StrTokens.MSG_E_PatternNotActivated);
                return;
            }

            if (_milCameraDisplay != null) {
                var image = _milCameraDisplay.GetImage();
                if (image == null) {
                    MessageBoxUtil.ShowMessageBoxError(StrTokens.MSG_E_ImageNotReady);
                    return;
                }
                if (_milCameraDisplay.HasFindRoi()) {
                    RunParam.SetFindROI(_milCameraDisplay.GetFindRoi().Clone() as ROI);
                }

                _milCameraDisplay.ClearFindGraphics();
                _milCameraDisplay.ClearMeasureGraphics();

                _patternAgent.SetRunParam(_patternInfo, RunParam);
                var patternResult = _patternAgent.Find(_patternInfo, image);
                _patternAgent.Draw(_patternInfo, patternResult, _milCameraDisplay);

                if (patternResult.Status == eFoundStatus.NotFound) {
                    MessageBoxUtil.ShowMessageBoxError(StrTokens.MSG_E_PatternNotFound);
                }
            }
        }
    }
}