using Aurora.Api;
using Aurora.View;
using VisionAligner;
using VisionCommon;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Reactive.Linq;
using System.Threading.Tasks;
using System.Windows;

namespace VisionUI.Aligner {
    /// <summary>
    /// 얼라인 로그 뷰 모델
    /// </summary>
    public class AlignLogViewModel : NotifyPropertyChangedBase {
        private Logger _Logger = new Logger(typeof(AlignLogViewModel).Name);

        private ObservableCollection<AlignResultItem> alignResultItems;
        /// <summary>얼라인 결과 아이템 리스트</summary>
        public ObservableCollection<AlignResultItem> AlignResultItems { get => alignResultItems; set => SetProperty(ref alignResultItems, value); }

        private DateTime selectedDate;

        /// <summary>선택된 날짜</summary>
        public DateTime SelectedDate { get => selectedDate; set { SetProperty(ref selectedDate, value); CalendarChanged(value); } }

        private SubSysInfo _SubSysInfo;
        private SubSysRecipe _SubSysRecipe;
        private CsvManager _CsvManager = new CsvManager();
        private AlignLogView _AlignLogView;
        /// <summary>
        /// 생성자
        /// </summary>
        /// <param name="subSysInfo">서브시스템 정보</param>
        /// <param name="alignLogView">얼라인 로그 뷰</param>
        public AlignLogViewModel(SubSysInfo subSysInfo, AlignLogView alignLogView) {
            _SubSysInfo = subSysInfo;
            _SubSysRecipe = VisionRecipeManager.GetSubSysRecipe(_SubSysInfo);
            _AlignLogView = alignLogView;
            AlignResultItems = new ObservableCollection<AlignResultItem>();
            //ProcResultItemManager.SetAlignResultItems(_SubSysInfo, AlignResultItems);
            SelectedDate = DateTime.Now.Date;

            SetObservable();
        }

        private void SetObservable() {
            VisionEnv.AuroraEnv.EventObservable.AsObservable(VisionEventId.UPDATE_ALIGN_RESULT).
                Where(x => x.From == _SubSysInfo.GetKey()).Subscribe(alignResult => UpdateAlignResult(alignResult));

            VisionEnv.AuroraEnv.EventObservable.AsObservable(VisionEventId.UPDATE_ALIGN_RESULTS).
                Where(x => x.From == _SubSysInfo.GetKey()).Subscribe(alignResultsParam => UpdateAlignResults(alignResultsParam));
        }
        /// <summary>
        /// 얼라인 결과 업데이트
        /// </summary>
        /// <param name="msg">이벤트 메세지</param>
        public void UpdateAlignResult(EventMessage msg) {
            var alignResult = msg.Param as AlignResult;

            Application.Current.Dispatcher.BeginInvoke(
                new Action(() => {
                    AlignResultItems.Add(AlignResultItemManager.GetAlignResultItem(_SubSysInfo, alignResult));
                }));

            // Dispatcher에 같이 넣을 경우, 전체적으로 느려질 수 있음
            Task.Run(() => { PrintAlignResult(alignResult, new ImagePoint(30, 20)); });
        }
        /// <summary>
        /// 여러개의 얼라인 결과 업데이트
        /// </summary>
        /// <param name="msg">이벤트 메세지</param>
        public void UpdateAlignResults(EventMessage msg) {
            var alignResultsParam = msg.Param as AlignResultsParam;

            Application.Current.Dispatcher.BeginInvoke(
                new Action(() => {
                    foreach (var itemPairs in alignResultsParam.AlignResults) {
                        AlignResult alignResult = itemPairs.Value;
                        AlignResultItems.Add(AlignResultItemManager.GetAlignResultItem(_SubSysInfo, alignResult));
                    }
                }));

            // Dispatcher에 같이 넣을 경우, 전체적으로 느려질 수 있음
            Task.Run(() => {
                foreach (var itemPairs in alignResultsParam.AlignResults) {
                    int alignPosIdx = itemPairs.Key;
                    if (alignResultsParam.MeasureResults.ContainsKey(alignPosIdx) && itemPairs.Value.Status != AlignStatus.NOT_FOUND) {
                        AlignResult alignResult = itemPairs.Value;
                        BaseResult baseResult = alignResultsParam.MeasureResults[alignPosIdx];
                        if (baseResult != null) {
                            ImagePoint printPosOffset = new ImagePoint(0, -210);
                            ImagePoint printPos = new ImagePoint(
                                baseResult.ImagePosition.X + printPosOffset.X,
                                baseResult.ImagePosition.Y + printPosOffset.Y);
                            PrintSimpleAlignResult(alignResult, printPos);
                        }
                    }
                }
            });
        }

        // 얼라인 결과를 화면에 텍스트로 뿌린다.
        private void PrintAlignResult(AlignResult alignResult, ImagePoint printPos) {
            var displayType = alignResult.DisplayType;
            var fovInfo = VisionRecipeManager.GetLastFovInfo(_SubSysInfo);
            var cameraDisplay = CameraDisplayManager.GetDisplay(fovInfo, displayType);

            var msgs = new List<string>();
            msgs.Add(string.Format("Name : {0}", alignResult.AlignName));
            msgs.Add(string.Format("Status : {0}", alignResult.Status));
            msgs.Add(string.Format("AlignCnt : {0}", alignResult.AlignCnt));
            msgs.Add(ConvertAlignDeltaX(alignResult.Delta.X));
            msgs.Add(ConvertAlignDeltaY(alignResult.Delta.Y));
            msgs.Add(string.Format("{0} : {1:0.000}", "dT", alignResult.Delta.T.Degree));

            eColor color = IpViewManager.GetGraphicColor(alignResult.Status);

            if (alignResult.AlignName.Contains("Mixed")) {
                // AlignMixerSeq 수행 결과 업데이트
                // Source 얼라인 결과 아래에 바인딩하기 위한 위치 조정
                printPos = new ImagePoint(30, 500);
            }

            cameraDisplay.AddTextList(color, printPos, msgs);
        }

        // 얼라인 요약 결과를 화면의 패턴 결과 위에 텍스트로 뿌린다.
        private void PrintSimpleAlignResult(AlignResult alignResult, ImagePoint printPos) {
            var displayType = alignResult.DisplayType;
            var fovInfo = VisionRecipeManager.GetLastFovInfo(_SubSysInfo);
            var cameraDisplay = CameraDisplayManager.GetDisplay(fovInfo, displayType);

            var msgs = new List<string>();
            msgs.Add(string.Format("PosIdx : {0}", alignResult.AlignCnt));
            msgs.Add(string.Format("Status : {0}", alignResult.Status));
            msgs.Add(string.Format("{0} / {1} / {2:0.000}",
                ConvertSimpleAlignDeltaXY(alignResult.Delta.X), ConvertSimpleAlignDeltaXY(alignResult.Delta.Y), alignResult.Delta.T.Degree));

            eColor color = IpViewManager.GetGraphicColor(alignResult.Status);
            color = (color == eColor.Green) ? eColor.Orange : color;
            cameraDisplay.AddTextList(color, printPos, msgs);
        }

        private string ConvertAlignDeltaX(double delta) {
            if (VisionSettingManager.VisionSetting.CoordUnit == eCoordUnit.UM) {
                return string.Format("{0} : {1:0.0}", "dX", MathUtil.ConvertUnitMilliToMicro(delta));
            }
            return string.Format("{0} : {1:0.000}", "dX", delta);
        }

        private string ConvertAlignDeltaY(double delta) {
            if (VisionSettingManager.VisionSetting.CoordUnit == eCoordUnit.UM) {
                return string.Format("{0} : {1:0.0}", "dY", MathUtil.ConvertUnitMilliToMicro(delta));
            }
            return string.Format("{0} : {1:0.000}", "dY", delta);
        }

        private string ConvertSimpleAlignDeltaXY(double delta) {
            if (VisionSettingManager.VisionSetting.CoordUnit == eCoordUnit.UM) {
                return string.Format("{0:0.0}", MathUtil.ConvertUnitMilliToMicro(delta));
            }
            return string.Format("{0:0.000}", delta);
        }

        private void CalendarChanged(DateTime dateTime) {
            _AlignLogView.LoadOverlayImages(dateTime);
            LoadCsv(dateTime);
        }

        private void LoadCsv(DateTime dateTime) {
            try {
                AlignResultItems?.Clear();
                List<AlignResultItem> items =
                    _CsvManager.LoadCsv<AlignResultItem>(_SubSysInfo, dateTime, eSaveDataType.Align);
                if (items != null) {    // 로드할 파일이 없으면 items가 null임.
                    foreach (AlignResultItem item in items) {
                        AlignResultItems.Add(item);
                    }
                }
            }
            catch (Exception e) {
                _Logger.FuncE(e.Message);
            }
        }
    }
}