using DevExpress.Utils;
using DevExpress.XtraCharts;

namespace Yw.WinFrmUI.Phart
{
    /// <summary>
    ///
    /// </summary>
    public partial class UniversalEditChart : DevExpress.XtraEditors.XtraUserControl
    {
        public UniversalEditChart()
        {
            InitializeComponent();
            InitialChart();
        }

        #region Private Variable

        private XYDiagram _diagram;
        private XYDiagramDefaultPane _default_pane;
        private AxisX _axis_x;
        private AxisY _axis_y;

        private Series _series_edit_pt;

        private List<Yw.Geometry.Point2d> _def_pt_list;
        private List<Yw.Geometry.Point2d> _fit_pt_list;

        private UniversalCoordinate _coordinate;
        private bool _initial_data = false;
        private bool _mouse_mode = false;//鼠标模式

        #endregion

        #region Public Variable 

        /// <summary>
        /// X轴标题
        /// </summary>
        public string AxisXTitle
        {
            get
            {
                return _axis_x.Title.Text;
            }
            set
            {
                _axis_x.Title.Text = value;
            }
        }

        /// <summary>
        /// Y轴标题
        /// </summary>
        public string AxisYTitle
        {
            get
            {
                return _axis_y.Title.Text;
            }
            set
            {
                _axis_y.Title.Text = value;
            }
        }

        /// <summary>
        /// 鼠标模式
        /// </summary>
        public bool MouseModel
        {
            get
            {
                return _mouse_mode;
            }
            set
            {
                _mouse_mode = value;
            }
        }

        #endregion

        #region Public Evnet

        /// <summary>
        /// 坐标变更事件
        /// </summary>
        public event Action<UniversalCoordinate> CoordinateChangedEvent;

        /// <summary>
        /// 定义点变更事件
        /// </summary>
        public event Action<List<Yw.Geometry.Point2d>> DefinePointChangedEvent;

        /// <summary>
        /// 选中点
        /// </summary>
        public event Action<int> SelectedPointIndexChangedEvent;
        #endregion 

        #region Private Initial

        /// <summary>
        /// 初始化图表
        /// </summary>
        private void InitialChart()
        {
            this.chartControl1.SetChartDisplay();
            this.chartControl1.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False;
            this.chartControl1.SeriesSelectionMode = SeriesSelectionMode.Point;
            this.chartControl1.SelectionMode = ElementSelectionMode.Single;
            this.chartControl1.RuntimeHitTesting = true;
            this.chartControl1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.chartControl1_MouseMove);
            this.chartControl1.MouseUp += new System.Windows.Forms.MouseEventHandler(this.chartControl1_MouseUp);
            this.chartControl1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.chartControl1_MouseDown);
            this.chartControl1.KeyUp += new System.Windows.Forms.KeyEventHandler(this.chartControl1_KeyUp);


            _diagram = (XYDiagram)chartControl1.Diagram;
            _default_pane = _diagram.DefaultPane;
            _axis_x = _diagram.AxisX;
            _axis_x.SetAxisXQDisplay();
            _axis_y = _diagram.AxisY;
            _axis_y.SetAxisYQHDisplay();

            _axis_x.Visibility = DefaultBoolean.False;
            _axis_x.GridLines.Visible = false;
            _axis_y.Visibility = DefaultBoolean.False;
            _axis_y.GridLines.Visible = false;

            this.chartControl1.SetChartMonoColorDisplay();
        }

        /// <summary>
        /// 初始化坐标轴
        /// </summary>
        private void InitialCoordinate()
        {
            //设置成白板坐标
            _coordinate = new UniversalCoordinate();
            _coordinate.GridNumberX = 30;
            _coordinate.GridNumberY = 16;
            _coordinate.StartLineNoY = 10;
            _coordinate.EndLineNoY = 15;
            _coordinate.CoordMinX = 0; _coordinate.CoordSpaceX = 1000;
            _coordinate.CoordMinY = 10; _coordinate.CoordSpaceY = 100;
        }

        #endregion Initial

        #region Private Chart Event

        private int _pick_point_index = -1;
        private void chartControl1_MouseDown(object sender, MouseEventArgs e)
        {
            if (!_initial_data)
                return;
            var hitInfo = chartControl1.CalcHitInfo(e.Location);
            _pick_point_index = -1;
            if (e.Button == MouseButtons.Left)
            {
                if (hitInfo.InSeriesPoint && hitInfo.SeriesPoint.Tag is int index)
                {
                    _pick_point_index = index;
                    this.SelectedPointIndexChangedEvent?.Invoke(_pick_point_index);
                }
            }
        }

        private void chartControl1_MouseMove(object sender, MouseEventArgs e)
        {
            if (!_mouse_mode)
                return;
            if (_pick_point_index < 0)
                return;
            if (IsInvalidData())
                return;
            var diagram_coordinates = _diagram.PointToDiagram(e.Location);
            var axis_value = diagram_coordinates.GetAxisValue(_axis_y);
            if (axis_value == null)
                return;
            _series_edit_pt.Points[_pick_point_index].Values[0] = axis_value.NumericalValue;
            _series_edit_pt.Points[_pick_point_index].NumericalArgument = diagram_coordinates.NumericalArgument;
        }


        private void chartControl1_MouseUp(object sender, MouseEventArgs e)
        {
            if (!_mouse_mode)
                return;
            if (_pick_point_index < 0)
                return;
            if (IsInvalidData())
                return;
            var x = _series_edit_pt.Points[_pick_point_index].NumericalArgument;
            var y = _series_edit_pt.Points[_pick_point_index].Values[0];
            x = Math.Round(x, 2);
            y = Math.Round(y, 2);
            SetPointValue(_pick_point_index, x, y);
            _pick_point_index = -1;
        }

        private void chartControl1_KeyUp(object sender, KeyEventArgs e)
        {
            if (_mouse_mode)
                return;
            if (_pick_point_index < 0)
                return;
            if (IsInvalidData())
                return;
            double space_x = _coordinate.CoordSpaceX / 50;
            double space_y = _coordinate.CoordSpaceY / 50;
            double x = _series_edit_pt.Points[_pick_point_index].NumericalArgument;
            double y = _series_edit_pt.Points[_pick_point_index].Values[0];
            if (e.KeyCode == Keys.Up)
            {
                y += space_y;
            }
            else if (e.KeyCode == Keys.Down)
            {
                y -= space_y;
            }
            else if (e.KeyCode == Keys.Left)
            {
                x -= space_x;
            }
            else if (e.KeyCode == Keys.Right)
            {
                x += space_x;
            }
            x = Math.Round(x, 2);
            y = Math.Round(y, 2);
            _series_edit_pt.Points[_pick_point_index].NumericalArgument = x;
            _series_edit_pt.Points[_pick_point_index].Values[0] = y;
            SetPointValue(_pick_point_index, x, y);
        }


        /// <summary>
        /// 更新数据
        /// </summary>
        private void SetPointValue(int index, double x, double y)
        {
            if (IsInvalidData())
                return;
            _def_pt_list[index].X = x;
            _def_pt_list[index].Y = y;
            this.DefinePointChangedEvent?.Invoke(_def_pt_list);
        }

        #endregion

        #region Set

        /// <summary>
        /// 绑定数据
        /// </summary> 
        public void Clear()
        {
            _initial_data = false;
            _def_pt_list = null;
            _fit_pt_list = null;
            _coordinate = null;
            _series_edit_pt = null;

            this.chartControl1.BeginInit();
            this.chartControl1.Series.Clear();
            this.chartControl1.AnnotationRepository.Clear();
            this.chartControl1.Legend.CustomItems.Clear();
            this.chartControl1.EndInit();
        }


        /// <summary>
        /// 绑定数据
        /// </summary> 
        public void SetBindingData(List<Yw.Geometry.Point2d> def_pt_list, List<Yw.Geometry.Point2d> fit_pt_list, string coordinate = null, Color? color = null)
        {
            _initial_data = false;
            _def_pt_list = def_pt_list?.Select(x => new Geometry.Point2d(x.X, x.Y)).ToList();
            _fit_pt_list = fit_pt_list?.Select(x => new Geometry.Point2d(x.X, x.Y)).ToList();
            _coordinate = UniversalCoordinate.ToModel(coordinate);
            _series_edit_pt = null;

            if (color == null)
                color = Color.DodgerBlue;

            this.chartControl1.BeginInit();
            this.chartControl1.Series.Clear();
            this.chartControl1.AnnotationRepository.Clear();
            this.chartControl1.Legend.CustomItems.Clear();
            if (IsInvalidData())
            {
                _initial_data = false;
                this.chartControl1.EndInit();
                return;
            }

            _series_edit_pt = AddPointSeries(color.Value, _axis_x, _axis_y, _default_pane, _def_pt_list);
            AddLineSeries(color.Value, _axis_x, _axis_y, _default_pane, _fit_pt_list);
            if (_coordinate == null)
                SetCoordinate();

            SetChartAxis();
            this.chartControl1.EndInit();
            _initial_data = true;
        }

        //是否是无效数据
        private bool IsInvalidData()
        {
            if (_def_pt_list == null || !_def_pt_list.Any())
            {
                return true;
            }
            if (_fit_pt_list == null || !_fit_pt_list.Any())
            {
                return true;
            }
            return false;
        }

        #region Add Chart Data 

        private Series AddPointSeries(Color color, AxisXBase axis_x, AxisYBase axis_y, XYDiagramPaneBase pane, List<Yw.Geometry.Point2d> pt_list)
        {
            if (pt_list == null || !pt_list.Any())
                return null;

            var view = new DevExpress.XtraCharts.PointSeriesView();
            view.PointMarkerOptions.Size = 8;
            view.PointMarkerOptions.Kind = MarkerKind.Circle;
            view.PointMarkerOptions.BorderColor = color;
            view.Color = color;
            view.AxisX = axis_x;
            view.AxisY = axis_y;
            view.EmptyPointOptions.Color = Color.Transparent;
            view.Pane = pane;

            var series_pt_list = new List<SeriesPoint>();
            for (int i = 0; i < pt_list.Count; i++)
            {
                var pt = pt_list[i];
                var series_pt = new DevExpress.XtraCharts.SeriesPoint(pt.X, new double[] { pt.Y });
                series_pt.Tag = i;
                series_pt_list.Add(series_pt);
            }

            var series = new DevExpress.XtraCharts.Series();
            series.ShowInLegend = false;
            series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Numerical;
            series.LabelsVisibility = DevExpress.Utils.DefaultBoolean.False;
            series.CrosshairEnabled = DefaultBoolean.False;
            series.CrosshairLabelVisibility = DefaultBoolean.False;
            series.ToolTipEnabled = DefaultBoolean.False;
            series.SeriesPointsSorting = SortingMode.None;
            series.Visible = true;
            series.View = view;
            series.CrosshairLabelPattern = "{A}";
            series.Points.AddRange(series_pt_list.ToArray());
            this.chartControl1.Series.Add(series);

            return series;
        }

        private void AddLineSeries(Color color, AxisXBase axis_x, AxisYBase axis_y, XYDiagramPaneBase pane, List<Yw.Geometry.Point2d> pt_list, DashStyle dash = DashStyle.Solid)
        {
            if (pt_list == null || !pt_list.Any())
                return;

            var view = new DevExpress.XtraCharts.LineSeriesView();
            view.LineStyle.DashStyle = dash;
            view.LineStyle.LineJoin = System.Drawing.Drawing2D.LineJoin.Round;
            view.LineStyle.Thickness = 2;
            view.Color = color;
            view.EnableAntialiasing = DefaultBoolean.True;
            view.MarkerVisibility = DefaultBoolean.False;
            view.AxisX = axis_x;
            view.AxisY = axis_y;
            view.EmptyPointOptions.Color = Color.Transparent;
            view.Pane = pane;

            var series_pt_list = pt_list.Select(x => x.ToSeriesPoint()).ToArray();
            var series = new DevExpress.XtraCharts.Series();
            series.ShowInLegend = false;
            series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Numerical;
            series.LabelsVisibility = DevExpress.Utils.DefaultBoolean.False;
            series.CrosshairEnabled = DefaultBoolean.False;
            series.ToolTipEnabled = DefaultBoolean.False;
            series.SeriesPointsSorting = SortingMode.None;
            series.Visible = true;
            series.View = view;
            series.Points.AddRange(series_pt_list);

            this.chartControl1.Series.Add(series);
        }


        #endregion

        #endregion

        #region Set Axis

        private double _minX, _maxX;
        private double _maxY = 0, _minY = 10000;

        /// <summary>
        /// 设置坐标
        /// </summary>
        private void SetCoordinate()
        {
            if (IsInvalidData())
            {
                InitialCoordinate();
                return;
            }

            _minX = _def_pt_list.Min(x => x.X);
            _maxX = _def_pt_list.Max(x => x.X);

            _minY = _def_pt_list.Min(x => x.Y);
            _maxY = _def_pt_list.Max(x => x.Y);

            _minX = Math.Min(_fit_pt_list.Min(x => x.X), _minX);
            _maxX = Math.Min(_fit_pt_list.Max(x => x.X), _maxX);

            _minY = Math.Min(_fit_pt_list.Min(x => x.Y), _minY);
            _maxY = Math.Min(_fit_pt_list.Max(x => x.Y), _maxY);


            _coordinate = UniversalCoordinate.CalcCoordinate(_minX, _maxX, _minY, _maxY);
            if (_coordinate == null)
                return;
            if (_coordinate.CoordMinX + _coordinate.CoordSpaceX * this._coordinate.GridNumberX < _maxX * 1.05)
            {
                _coordinate.GridNumberX++;
            }

        }

        /// <summary>
        /// 设置图表轴
        /// </summary>
        public void SetChartAxis()
        {
            if (_coordinate == null || IsInvalidData())
            {
                _axis_x.Visibility = DefaultBoolean.False;
                _axis_x.GridLines.Visible = false;
                _axis_y.Visibility = DefaultBoolean.False;
                _axis_y.GridLines.Visible = false;
                return;
            }

            //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;
            }

            _axis_x.CustomLabels.Clear();
            _axis_x.CustomLabels.AddRange(axis_x_labels.ToArray());
            _axis_x.Visibility = DefaultBoolean.True;
            _axis_x.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;
            }

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

            _axis_x.SetAxisRange(_coordinate.CoordMinX, _coordinate.DispMaxX());
            _axis_y.SetAxisRange(_coordinate.DispMinY(), _coordinate.DispMaxY());
        }



        #endregion Calc




    }
}