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

namespace MilUI {
    public class MultiLineParamSettingViewModel : NotifyPropertyChangedBase, IGraEventSubscriber, IDisposable {
        private Logger _logger = new Logger(typeof(MultiLineParamSettingViewModel).Name);

        #region Binding Properties
        private PatternInfo _PatternInfo;
        public PatternInfo PatternInfo { get => _PatternInfo; set => SetProperty(ref _PatternInfo, value); }

        private eRoiIdx _RoiIdx;
        public eRoiIdx RoiIdx { get => _RoiIdx; set => SetProperty(ref _RoiIdx, value); }

        private eColor _RoiColor = eColor.Cyan;
        public eColor RoiColor { get => _RoiColor; set => SetProperty(ref _RoiColor, value); }

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

        private PatternAgentBase _patternAgent;
        private CameraDisplay _cameraDisplay;
        private FovInfo _fovInfo;

        public MultiLineParamSettingViewModel(
            PatternAgentBase patternAgent, PatternInfo subPatternInfo, CameraDisplay cameraDisplay, FovInfo fovInfo, eRoiIdx roiIdx) {

            _patternAgent = patternAgent;
            _cameraDisplay = cameraDisplay;
            _fovInfo = fovInfo;

            PatternInfo = subPatternInfo;
            RoiIdx = roiIdx;

            CreatePattern();

            _cameraDisplay.SetGraEventSubscriber(PatternInfo, this);
        }

        public void SetEnabled(bool isActivated) {
            PatternInfo.IsActivated = isActivated;
        }

        public void CreatePattern() {
            if (!_patternAgent.IsPatternExist(PatternInfo.GetPatternIndex())) {
                if (E1.OK == _patternAgent.Create(PatternInfo)) {
                    PatternInfo.IsActivated = false;
                    RunParam = new LineFinderRunParam();
                    _patternAgent.SetRunParam(PatternInfo, RunParam);

                    if (E1.OK != _patternAgent.Save(PatternInfo)) {
                        _logger.FuncE("Failed to save multi line.");
                    }
                }
                else {
                    _logger.FuncE("Failed to create multi line.");
                }
            }
            else {
                RunParam = (_patternAgent.GetRunParam(PatternInfo) as LineFinderRunParam).Clone() as LineFinderRunParam;
            }

            RoiColor = RunParam.MrkParamExt.FindROI.RoiColor;
            RunParam.MrkParamExt.FindROI.RoiIdx = RoiIdx;
            RunParam.MrkParamExt.FindROI.Angle.Degree = ConvertDegreeDecimalPlaces(RunParam.MrkParamExt.FindROI.Angle.Degree);
        }

        public void ShowFindROI() {
            RunParam.MrkParamExt.FindROI.RoiIdx = RoiIdx;
            RunParam.MrkParamExt.FindROI.RoiColor = RoiColor;

            _cameraDisplay.SetPatternInfo(PatternInfo, RunParam.MrkParamExt.FindROI.RoiIdx);

            var milImage = _cameraDisplay.GetImage();
            if (milImage != 0) {
                var imageSize = MilEnvironment.GetImageSize(milImage);
                var findRoi = GetFindROIFromRunParam(imageSize, RunParam);
                _cameraDisplay.AddFindRoi(findRoi, true);
            }
        }

        public void HideFindROI() {
            _cameraDisplay.ClearFindRoi(RunParam.MrkParamExt.FindROI.RoiIdx);
            _cameraDisplay.ClearFindLabelNumGraphics(RunParam.MrkParamExt.FindROI.RoiIdx);
        }

        public void Clear() {
            var subPatternIndex = PatternInfo.GetPatternIndex();
            PatternInfo = _patternAgent.GetPatternInfo(subPatternIndex).Clone() as PatternInfo;

            RunParam = (_patternAgent.GetRunParam(PatternInfo) as LineFinderRunParam).Clone() as LineFinderRunParam;
            RoiIdx = RunParam.MrkParamExt.FindROI.RoiIdx;
            RoiColor = RunParam.MrkParamExt.FindROI.RoiColor;
            RunParam.MrkParamExt.FindROI.Angle.Degree = ConvertDegreeDecimalPlaces(RunParam.MrkParamExt.FindROI.Angle.Degree);

            if (PatternInfo.IsActivated) {
                ShowFindROI();
            }
        }

        public void Save() {
            if (_cameraDisplay.HasFindRoi(RunParam.MrkParamExt.FindROI.RoiIdx)) {
                RunParam.MrkParamExt.FindROI = _cameraDisplay.GetFindRoi(RunParam.MrkParamExt.FindROI.RoiIdx).Clone() as ROI;
            }
            RunParam.MrkParamExt.FindROI.RoiIdx = RoiIdx;
            RunParam.MrkParamExt.FindROI.RoiColor = RoiColor;

            _patternAgent.SetRunParam(PatternInfo, RunParam);
            _patternAgent.Save(PatternInfo);
        }

        public void Find() {
            var image = _cameraDisplay.GetImage();
            if (image == null) {
                MessageBoxUtil.ShowMessageBoxError(StrTokens.MSG_E_ImageNotReady);
                return;
            }

            if (PatternInfo.IsActivated) {
                _cameraDisplay.ClearMeasureGraphics();

                if (_cameraDisplay.HasFindRoi(RunParam.MrkParamExt.FindROI.RoiIdx)) {
                    RunParam.MrkParamExt.FindROI = _cameraDisplay.GetFindRoi(RunParam.MrkParamExt.FindROI.RoiIdx).Clone() as ROI;
                }

                var oldRunParam = _patternAgent.GetRunParam(PatternInfo) as LineFinderRunParam;
                _patternAgent.SetRunParam(PatternInfo, RunParam);
                var patternResult = _patternAgent.Find(PatternInfo, image);
                _patternAgent.Draw(PatternInfo, patternResult, _cameraDisplay);
                _patternAgent.SetRunParam(PatternInfo, oldRunParam);   // Find가 끝난 후, 원본 RunParam으로 복원
            }
        }

        private ROI GetFindROIFromRunParam(ImageSize imageSize, LineFinderRunParam runParam) {
            if ((0 < runParam.MrkParamExt.FindROI.Width && runParam.MrkParamExt.FindROI.Width < imageSize.Width) &&
                (0 < runParam.MrkParamExt.FindROI.Height && runParam.MrkParamExt.FindROI.Height < imageSize.Height)) {
                return runParam.MrkParamExt.FindROI.Clone() as ROI;
            }

            int pixelOffset = (int)runParam.MrkParamExt.FindROI.RoiIdx * 50;
            return new ROI(
                new ImagePoint(imageSize.Width * 0.5 + pixelOffset, imageSize.Height * 0.5 + pixelOffset),
                100, 300,
                Angle.CreateWithDegree(0),
                RoiIdx,
                RoiColor);
        }

        public void UpdateAngleOfFindRoi(double roiAngle) {
            _cameraDisplay.UpdateAngleOfFindRoi(roiAngle, RunParam.MrkParamExt.FindROI.RoiIdx);
        }

        public void UpdateAngleOfRoi(eGraRoiType graRoiType, object param) {
            if (graRoiType == eGraRoiType.FindRoi) {
                RunParam.MrkParamExt.FindROI.Angle.Degree = ConvertDegreeDecimalPlaces((double)param);
                NotifyPropertyChanged(nameof(RunParam));
            }
        }

        private double ConvertDegreeDecimalPlaces(double degree) {
            return Math.Round(degree, 1);
        }

        public void Dispose() {
        }
    }
}