using DevExpress.Utils;
using DevExpress.XtraCharts;
using Yw.WinFrmUI.Phart;

namespace PBS.WinFrmUI.Hydro
{
    public partial class SystemCurveChartCtrl : DevExpress.XtraEditors.XtraUserControl
    {
        public SystemCurveChartCtrl()
        {
            InitializeComponent();
            this.layoutControl1.SetupLayoutControl();
            this.gridView1.SetNormalView();
            this.sidePanel1.Visible = false;
            InitialChart();
        }

        public void InitialChart()
        {
            this.chartControl1.Legend.Direction = LegendDirection.LeftToRight;
            this.chartControl1.RuntimeHitTesting = true;   

            _xyDiagram = this.chartControl1.Diagram as XYDiagram;
            _xyDiagramPane = _xyDiagram.DefaultPane;

            _seriesWaterPoint = this.chartControl1.GetSeriesByName("SeriesWaterPoint");
            _seriesUpperPressure = this.chartControl1.GetSeriesByName("SeriesUpperPressure");
            _seriesLowerPressure = this.chartControl1.GetSeriesByName("SeriesLowerPressure");
            _seriesAveragePressure = this.chartControl1.GetSeriesByName("SeriesAveragePressure");

            _constantLineDynamicPressure = _xyDiagram.AxisY.ConstantLines.GetElementByName("ConstantLineDynamicPressure") as ConstantLine;
            _constantLineStaticPressure = _xyDiagram.AxisY.ConstantLines.GetElementByName("ConstantLineStaticPressure") as ConstantLine;

            _seriesWaterPoint.LegendTextPattern = "用水点";
            _seriesUpperPressure.LegendTextPattern = "压力-上限";
            _seriesLowerPressure.LegendTextPattern = "压力-下限";
            _seriesAveragePressure.LegendTextPattern = "压力-平均";

            _seriesWaterPoint.CrosshairEnabled = DevExpress.Utils.DefaultBoolean.False;
            _seriesUpperPressure.CrosshairEnabled = DevExpress.Utils.DefaultBoolean.True;
            _seriesLowerPressure.CrosshairEnabled = DevExpress.Utils.DefaultBoolean.True;
            _seriesAveragePressure.CrosshairEnabled = DevExpress.Utils.DefaultBoolean.True;

            this.chartControl1.CrosshairOptions.ShowOnlyInFocusedPane = false;
            this.chartControl1.CrosshairOptions.GroupHeaderPattern = "{A:N2}";
            this.chartControl1.CrosshairOptions.GroupHeaderTextOptions.EnableAntialiasing = DevExpress.Utils.DefaultBoolean.True;
            _seriesUpperPressure.CrosshairLabelPattern = "{V:N2}";
            _seriesLowerPressure.CrosshairLabelPattern = "{V:N2}";
            _seriesAveragePressure.CrosshairLabelPattern = "{V:N2}";

            _constantLineDynamicPressure.ShowInLegend = false;
            _constantLineStaticPressure.ShowInLegend = false;

            _constantLineDynamicPressure.Title.Alignment = ConstantLineTitleAlignment.Far;
            _constantLineStaticPressure.Title.Alignment = ConstantLineTitleAlignment.Far;

            _constantLineDynamicPressure.LineStyle.Thickness = 2;
            _constantLineStaticPressure.LineStyle.Thickness = 2;

            _xyDiagram.EnableAxisXZooming = true;
            _xyDiagram.EnableAxisYZooming = true;
            _xyDiagram.EnableAxisXScrolling = true;
            _xyDiagram.EnableAxisYScrolling = true;
             
        }

        private XYDiagram _xyDiagram;
        private XYDiagramDefaultPane _xyDiagramPane;

        private Series _seriesWaterPoint;
        private Series _seriesUpperPressure;
        private Series _seriesLowerPressure;
        private Series _seriesAveragePressure;

        private ConstantLine _constantLineDynamicPressure;
        private ConstantLine _constantLineStaticPressure;


        /// <summary>
        /// 刷新数据事件
        /// </summary>
        public event Action RefreshDataEvent;


        public event Action<Yw.Ahart.CubicCurve, Yw.Ahart.CubicCurve, Yw.Ahart.CubicCurve> RefreshCurveEvent;

        /// <summary>
        /// 清空
        /// </summary>
        public void Clear()
        {

            this.chartControl1.BeginInit();
            _seriesWaterPoint.Points.Clear();
            _seriesUpperPressure.Points.Clear();
            _seriesLowerPressure.Points.Clear();
            _seriesAveragePressure.Points.Clear();

            this.chartControl1.CrosshairEnabled = DefaultBoolean.False;
            this.chartControl1.CrosshairOptions.ShowArgumentLine = false;

            _constantLineDynamicPressure.Visible = false;
            _constantLineStaticPressure.Visible = false;
            _xyDiagram.AxisX.Visibility = DefaultBoolean.False;
            _xyDiagram.AxisX.GridLines.Visible = false;

            _xyDiagram.AxisY.Visibility = DefaultBoolean.False;
            _xyDiagram.AxisY.GridLines.Visible = false;


            _xyDiagram.EnableAxisXZooming = false;
            _xyDiagram.EnableAxisYZooming = false;
            _xyDiagram.EnableAxisXScrolling = false;
            _xyDiagram.EnableAxisYScrolling = false;

            this.chartControl1.EndInit();

            this.RefreshCurveEvent?.Invoke(null, null, null);
        }

        /// <summary>
        /// 绑定数据
        /// </summary>
        public void SetBindingData(List<WaterPointCalcViewModel> waterPointCalcList)
        {
            if (waterPointCalcList == null || !waterPointCalcList.Any())
            {
                Clear();
                return;
            }

             
            this.chartControl1.BeginInit();

            _xyDiagram.EnableAxisXZooming = true;
            _xyDiagram.EnableAxisYZooming = true;
            _xyDiagram.EnableAxisXScrolling = true;
            _xyDiagram.EnableAxisYScrolling = true;

            this.chartControl1.CrosshairOptions.ShowArgumentLine = true;

            _seriesWaterPoint.Points.Clear();
            _seriesUpperPressure.Points.Clear();
            _seriesLowerPressure.Points.Clear();
            _seriesAveragePressure.Points.Clear();

            _constantLineDynamicPressure.Visible = false;
            _constantLineStaticPressure.Visible = false;

              
            var upperPressurePtList = new List<Yw.Geometry.Point2d>();
            var lowerPressurePtList = new List<Yw.Geometry.Point2d>();
            var averagePressurePtList = new List<Yw.Geometry.Point2d>();

            var waterPointGroup = waterPointCalcList.GroupBy(x => Math.Round(x.TotalFlow, 1));
            foreach (var item in waterPointGroup)
            {
                var x = item.Key;
                var yList = item.Select(x => x.EndPressure).OrderBy(x => x).ToList();

                var yUpper = CalculatePercentile(yList, 0.95);
                var yLower = CalculatePercentile(yList, 0.05);
                var yNumList = yList.Where(x => x >= yLower && x <= yUpper);
                if (yNumList == null || !yNumList.Any())
                {
                    continue;
                }
                var yAverage = yNumList.Where(x => x >= yLower && x <= yUpper).Average();

                upperPressurePtList.Add(new Yw.Geometry.Point2d(x, yUpper));
                lowerPressurePtList.Add(new Yw.Geometry.Point2d(x, yLower));
                averagePressurePtList.Add(new Yw.Geometry.Point2d(x, yAverage));
            }

            if (averagePressurePtList.Count > 4)
            {
                var curveUpperPressure = new Yw.Ahart.CubicCurve(upperPressurePtList);
                var curveLowerPressure = new Yw.Ahart.CubicCurve(lowerPressurePtList);
                var curveAveragePressure = new Yw.Ahart.CubicCurve(averagePressurePtList);

                var upperPressureCurvePtList = curveUpperPressure.GetPointList(100);
                var lowerPressureCurvePtList = curveLowerPressure.GetPointList(100);
                var averagePressureCurvePtList = curveAveragePressure.GetPointList(100);


                foreach (var item in waterPointCalcList)
                {
                    _seriesWaterPoint.Points.Add(new SeriesPoint(item.TotalFlow, item.EndPressure));
                }
                foreach (var item in upperPressureCurvePtList)
                {
                    _seriesUpperPressure.Points.Add(new SeriesPoint(item.X, item.Y));
                }
                foreach (var item in lowerPressureCurvePtList)
                {
                    _seriesLowerPressure.Points.Add(new SeriesPoint(item.X, item.Y));
                }
                foreach (var item in averagePressureCurvePtList)
                {
                    _seriesAveragePressure.Points.Add(new SeriesPoint(item.X, item.Y));
                }



                this.RefreshCurveEvent?.Invoke(curveUpperPressure, curveLowerPressure, curveAveragePressure);
            }


            var minX = waterPointCalcList.Min(x => x.TotalFlow);
            var maxX = waterPointCalcList.Max(x => x.TotalFlow); 
            var minY = waterPointCalcList.Min(x => x.EndPressure);
            var maxY = waterPointCalcList.Max(x => x.EndPressure);

            SetChartAxis(minX, maxX, minY, maxY);
            this.chartControl1.EndInit();
        }

        //计算百分位数
        private double CalculatePercentile(List<double> sortedData, double percentile)
        {
            int n = sortedData.Count;
            double index = (n - 1) * percentile;
            int lower = (int)Math.Floor(index);
            int upper = (int)Math.Ceiling(index);
            double fraction = index - lower;
            return sortedData[lower] * (1 - fraction) + sortedData[upper] * fraction;
        }

        #region Set Axis


        /// <summary>
        /// 设置图表轴
        /// </summary>
        private void SetChartAxis(double minX, double maxX, double minY, double maxY)
        {
            var coordinate = Yw.WinFrmUI.Phart.UniversalCoordinate.CalcCoordinate(minX, maxX, minY, maxY);
            if (coordinate == null)
            {
                _xyDiagram.AxisX.Visibility = DefaultBoolean.False;
                _xyDiagram.AxisX.GridLines.Visible = false;

                _xyDiagram.AxisY.Visibility = DefaultBoolean.False;
                _xyDiagram.AxisY.GridLines.Visible = false;
                return;
            }
            if (coordinate.CoordMinX + coordinate.CoordSpaceX * coordinate.GridNumberX < maxX * 1.05)
                coordinate.GridNumberX++;


                //计算刻度 X
                var axis_x_labels = new List<CustomAxisLabel>();
            var display_x = coordinate.CoordMinX;
            for (int i = 0; i < coordinate.GridNumberX + 1; i++)
            {
                axis_x_labels.Add(new CustomAxisLabel(display_x.ToString("N0"), display_x));
                display_x = display_x + coordinate.CoordSpaceX;
            }

            _xyDiagram.AxisX.CustomLabels.Clear();
            _xyDiagram.AxisX.CustomLabels.AddRange(axis_x_labels.ToArray());
            _xyDiagram.AxisX.Visibility = DefaultBoolean.True;
            _xyDiagram.AxisX.GridLines.Visible = true;


            //计算刻度 Y
            var axis_y_labels = new List<CustomAxisLabel>();
            var display_y = coordinate.CoordMinY + coordinate.CoordSpaceY * coordinate.StartLineNoY;
            for (int i = coordinate.StartLineNoY; i < coordinate.EndLineNoY + 1; i++)
            {
                axis_y_labels.Add(new CustomAxisLabel(display_y.ToString(), display_y));
                display_y = display_y + coordinate.CoordSpaceY;
            }

            _xyDiagram.AxisY.CustomLabels.Clear();
            _xyDiagram.AxisY.CustomLabels.AddRange(axis_y_labels.ToArray());
            _xyDiagram.AxisY.Visibility = DefaultBoolean.True;
            _xyDiagram.AxisY.GridLines.Visible = true;

            _xyDiagram.AxisY.SetAxisRange(coordinate.CoordMinX, coordinate.DispMaxX());
            _xyDiagram.AxisY.SetAxisRange(coordinate.DispMinY(), coordinate.DispMaxY());

        }

        #endregion

    }
}