using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using TradeIdeas.TIProData;
using TradeIdeas.TIProData.Configuration;
using System.Windows.Forms.DataVisualization.Charting;
using TradeIdeas.TIProGUI;


namespace TradeIdeas.TIProGUI.CBT
{
    [ToolboxItem(false)]
    public partial class ConfigDemoUpFromTheCloseBars : UserControl,IChild
    {
        struct BarSize
        {
            public string Name;
            public double todayBarSize;
            public double yesterdayBarSize;
        }
        string IChild.Name { get { return "Chart"; } }
        Control IChild.Body { get { return this; } }
        bool IChild.CanShowExample { get { return false; } }
        void IChild.OnShow()
        {   // If exactly one value exists, show it.  This helps us when we are
            // *displaying* a value which was set on a different tab page.
            if (_container.MinValue.HasValue && !_container.MaxValue.HasValue)
                minRadioButton.Checked = true;
            else if (_container.MaxValue.HasValue && !_container.MinValue.HasValue)
                maxRadioButton.Checked = true;
            // Otherwise keep it where it was.
        }
        private readonly IContainer _container;
        private readonly MinMaxSummary _minMaxSummary;
        private bool _userHasMadeChange = false;
        private Instrument _stock;
        private List<BarSize> _barsize = new List<BarSize>();
        private double _symbolBarsizeInUse;
        private static readonly Instrument DELL = new Instrument("DELL", "DELL Inc.", @"Jul 31, 2012	11.86	11.97	11.85	11.89	1,397,000	11.85
Jul 30, 2012	12.03	12.05	11.81	11.85	14,086,700	11.85
Jul 27, 2012	11.96	12.12	11.88	12.03	17,802,200	12.03
Jul 26, 2012	11.69	11.91	11.66	11.83	21,524,400	11.83
Jul 25, 2012	11.57	11.73	11.43	11.49	23,542,300	11.49
Jul 24, 2012	11.85	11.89	11.47	11.57	21,406,300	11.57
Jul 23, 2012	11.78	11.87	11.52	11.80	24,638,300	11.80
Jul 20, 2012	12.22	12.28	12.00	12.01	14,004,300	12.01
Jul 19, 2012	12.15	12.30	12.11	12.23	13,252,300	12.23
Jul 18, 2012	12.07	12.29	12.02	12.07	25,957,000	12.07
Jul 17, 2012	12.24	12.30	12.02	12.12	19,459,000	12.12
Jul 16, 2012	12.27	12.42	12.17	12.19	12,668,000	12.19
Jul 13, 2012	12.11	12.36	12.07	12.32	12,399,300	12.32
Jul 12, 2012	12.16	12.22	12.00	12.13	12,314,100	12.13
Jul 11, 2012	12.32	12.41	12.16	12.28	18,566,300	12.28
Jul 10, 2012	12.27	12.49	12.15	12.30	20,876,900	12.30
Jul 9, 2012	12.51	12.60	12.16	12.27	17,265,700	12.27
Jul 6, 2012	12.58	12.63	12.35	12.56	15,414,700	12.56
Jul 5, 2012	12.67	12.73	12.55	12.63	11,150,400	12.63
Jul 3, 2012	12.42	12.69	12.35	12.68	10,696,800	12.68");

        private static readonly Instrument MSFT = new Instrument("MSFT", "Microsoft Corporation", @"Aug 1, 2012	29.58	29.64	29.21	29.41	31,254,700	29.41
Jul 31, 2012	29.48	29.71	29.33	29.47	37,620,900	29.47
Jul 30, 2012	29.75	29.82	29.46	29.64	28,905,000	29.64
Jul 27, 2012	29.48	29.85	29.18	29.76	44,242,600	29.76
Jul 26, 2012	29.23	29.50	29.09	29.16	45,301,400	29.16
Jul 25, 2012	29.24	29.33	28.78	28.83	45,579,500	28.83
Jul 24, 2012	29.24	29.36	28.90	29.15	47,723,300	29.15
Jul 23, 2012	29.57	29.58	29.01	29.28	55,151,900	29.28
Jul 20, 2012	31.00	31.05	30.05	30.12	64,021,700	30.12
Jul 19, 2012	30.51	30.80	30.38	30.67	46,663,200	30.67
Jul 18, 2012	29.60	30.45	29.46	30.45	41,090,400	30.45
Jul 17, 2012	29.64	29.86	29.20	29.66	33,771,300	29.66
Jul 16, 2012	29.48	29.53	29.04	29.44	27,900,600	29.44
Jul 13, 2012	28.76	29.48	28.72	29.39	39,085,000	29.39
Jul 12, 2012	29.15	29.18	28.54	28.63	63,523,600	28.63
Jul 11, 2012	29.71	29.74	29.11	29.30	39,184,900	29.30
Jul 10, 2012	30.08	30.22	29.51	29.74	37,534,100	29.74
Jul 9, 2012	30.12	30.23	29.78	30.00	30,680,800	30.00
Jul 6, 2012	30.61	30.70	29.95	30.19	38,294,800	30.19
Jul 5, 2012	30.59	30.78	30.38	30.70	28,801,900	30.70");
        
        private static readonly Instrument AMZN = new Instrument("AMZN", "Amazon Inc.", @"Aug 1, 2012	234.05	234.05	230.72	232.09	2,517,800	232.09
Jul 31, 2012	235.10	236.30	231.61	233.30	3,453,600	233.30
Jul 30, 2012	237.00	240.74	234.07	236.09	3,736,400	236.09
Jul 27, 2012	225.25	238.34	224.50	237.32	11,313,900	237.32
Jul 26, 2012	220.00	221.45	214.95	220.01	6,906,900	220.01
Jul 25, 2012	222.00	222.50	215.91	217.05	3,646,700	217.05
Jul 24, 2012	226.27	226.61	221.23	223.04	5,008,700	223.04
Jul 23, 2012	224.72	226.58	221.54	226.01	5,515,100	226.01
Jul 20, 2012	225.36	229.39	225.29	228.29	4,170,000	228.29
Jul 19, 2012	220.73	227.50	220.69	226.17	5,449,400	226.17
Jul 18, 2012	216.15	218.67	215.71	217.47	2,093,000	217.47
Jul 17, 2012	217.45	217.94	213.96	216.93	1,987,000	216.93
Jul 16, 2012	216.60	218.31	214.46	216.01	2,004,200	216.01
Jul 13, 2012	215.63	219.31	213.88	218.39	2,221,900	218.39
Jul 12, 2012	216.61	217.30	212.61	215.36	2,616,200	215.36
Jul 11, 2012	218.95	221.74	215.34	218.37	2,734,700	218.37
Jul 10, 2012	226.25	227.14	218.28	219.50	2,982,100	219.50
Jul 9, 2012	225.00	226.00	223.45	225.05	1,922,000	225.05
Jul 6, 2012	226.35	228.90	224.18	225.05	3,203,200	225.05
Jul 5, 2012	228.62	230.50	226.53	227.06	2,682,300	227.06");

private static readonly Instrument AAPL = new Instrument("AAPL","Apple Inc.",@"Jul 31, 2012	603.23	611.70	602.72	610.76	16,511,700	608.15
Jul 30, 2012	590.92	599.44	587.82	595.03	13,540,800	592.49
Jul 27, 2012	575.01	585.83	571.59	585.16	14,426,300	582.66
Jul 26, 2012	579.76	580.40	570.36	574.88	14,522,600	572.42
Jul 25, 2012	574.46	580.80	570.00	574.97	31,332,600	572.51
Jul 24, 2012	607.38	609.68	598.51	600.92	20,183,300	598.35
Jul 23, 2012	594.40	605.90	587.71	603.83	17,427,700	601.25
Jul 20, 2012	613.03	614.44	603.70	604.30	14,195,400	601.72
Jul 19, 2012	611.28	615.35	606.00	614.32	15,602,200	611.69
Jul 18, 2012	606.59	608.34	603.56	606.26	9,025,000	603.67
Jul 17, 2012	610.79	611.50	603.15	606.94	10,486,600	604.35
Jul 16, 2012	605.12	611.62	605.02	606.91	10,759,300	604.32
Jul 13, 2012	602.95	607.19	600.00	604.97	11,122,400	602.38
Jul 12, 2012	600.24	603.47	592.68	598.90	15,287,200	596.34
Jul 11, 2012	606.12	607.66	597.22	604.43	16,761,500	601.85
Jul 10, 2012	617.97	619.87	605.31	608.21	18,284,200	605.61
Jul 9, 2012	605.30	613.90	604.11	613.89	13,550,200	611.27
Jul 6, 2012	607.09	608.44	601.58	605.88	14,961,800	603.29
Jul 5, 2012	600.56	614.34	599.65	609.94	17,299,400	607.33
Jul 3, 2012	594.88	600.00	594.00	599.41	8,632,600	596.85");

private static readonly Instrument IBM = new Instrument("IBM","International Business Machines Corp",@"Jul 31, 2012	196.50	197.58	195.88	195.98	3,507,000	195.15
Jul 30, 2012	196.32	197.84	195.92	196.68	2,787,000	195.84
Jul 27, 2012	195.10	197.41	193.95	196.39	4,177,300	195.56
Jul 26, 2012	193.49	194.95	192.57	193.95	3,282,900	193.13
Jul 25, 2012	190.31	192.77	189.32	191.08	3,833,800	190.27
Jul 24, 2012	190.92	191.32	188.56	190.34	3,597,100	189.53
Jul 23, 2012	189.78	191.30	188.20	190.83	3,904,500	190.02
Jul 20, 2012	194.09	194.90	192.17	192.45	4,789,700	191.63
Jul 19, 2012	193.40	196.85	192.97	195.34	10,395,400	194.51
Jul 18, 2012	184.15	188.59	183.55	188.25	8,019,500	187.45
Jul 17, 2012	185.73	186.29	183.20	183.65	5,158,600	182.87
Jul 16, 2012	185.58	186.10	184.58	184.79	3,144,400	184.00
Jul 13, 2012	183.46	186.33	183.03	186.01	3,933,000	185.22
Jul 12, 2012	184.25	184.39	181.85	183.09	4,931,300	182.31
Jul 11, 2012	186.22	187.36	183.51	185.25	5,456,100	184.46
Jul 10, 2012	190.30	191.14	185.60	186.26	4,690,300	185.47
Jul 9, 2012	190.76	191.00	188.05	189.67	3,988,100	188.86
Jul 6, 2012	193.92	193.94	189.74	191.41	4,952,900	190.60
Jul 5, 2012	194.88	196.85	193.63	195.29	2,690,200	194.46
Jul 3, 2012	195.46	196.34	194.91	195.93	1,450,400	195.10");


        
        private readonly Instrument[] STOCK_SAMPLES = new Instrument[] { DELL, MSFT, AMZN, AAPL, IBM };

        private readonly Random _random = new Random();
        private Instrument RANDOM_SAMPLE { get { return STOCK_SAMPLES[_random.Next() % STOCK_SAMPLES.Length]; } }
        private const double LARGE = 1.0E5;  //Larger value causes the line to display incorrectly
        private bool _internalTrackBarChange = false;
        public ConfigDemoUpFromTheCloseBars(IContainer container)
        {
             loadBarsizes();
            _container = container;
            _stock = DELL;
            _symbolBarsizeInUse = getCurrentSymbolsBarSize(_stock);
            InitializeComponent();
            int initialHeight = stockSymbolLabel.Height;
            stockSymbolLabel.Font = new Font(stockSymbolLabel.Font.FontFamily, stockSymbolLabel.Font.SizeInPoints * 2, stockSymbolLabel.Font.Style);
            stockDescriptionLabel.Top += stockSymbolLabel.Height - initialHeight;

            _minMaxSummary = new MinMaxSummary(chart2);
            UpdateChart();

            _container.MinTextBox.TextChanged += new EventHandler(MinTextBox_TextChanged);
            _container.MaxTextBox.TextChanged += new EventHandler(MaxTextBox_TextChanged);
            minPictureBox.Image = container.ConnectionMaster.ImageCacheManager.GetFilter("Min" + _container.InternalCode);
            maxPictureBox.Image = container.ConnectionMaster.ImageCacheManager.GetFilter("Max" + _container.InternalCode);
        }
        private void loadBarsizes()
        {
            _barsize.Clear();
            /*Bar sizes ("volatility") were looked up on the TI website
             using the most recent date listed  for each of the stocks in the
             hard-coded "Instrument" data above...*/
            BarSize d;
            d.Name = DELL.Symbol;
            d.todayBarSize = 0.0548;
            d.yesterdayBarSize = 0.0551;

            BarSize m;
            m.Name = MSFT.Symbol;
            m.todayBarSize = 0.1073;
            m.yesterdayBarSize = 0.1069;

            BarSize a;
            a.Name = AMZN.Symbol;
            a.todayBarSize = 0.8763;
            a.yesterdayBarSize = 0.8721;

            BarSize i;
            i.Name = IBM.Symbol;
            i.todayBarSize = 0.5239;
            i.yesterdayBarSize = 0.5234;

            BarSize ap;
            ap.Name = AAPL.Symbol;
            ap.todayBarSize = 1.8447;
            ap.yesterdayBarSize = 1.8236;

            _barsize.Add(d);
            _barsize.Add(m);
            _barsize.Add(a);
            _barsize.Add(i);
            _barsize.Add(ap);
        }
        private double getCurrentSymbolsBarSize(Instrument ins)
        {
            double retVal = 0;
            foreach (BarSize b in _barsize)
            {
                if (ins.Symbol == b.Name)
                {
                    retVal = b.yesterdayBarSize;
                    break;
                }
            }
            return retVal;
        }
        void MaxTextBox_TextChanged(object sender, EventArgs e)
        {
            if (maxRadioButton.Checked)
                UpdateTrackBar();
            UpdateChart();
            ScaleChart();
        }

        void MinTextBox_TextChanged(object sender, EventArgs e)
        {
            if (minRadioButton.Checked)
                UpdateTrackBar();
            UpdateChart();
            ScaleChart();
        }
        private void UpdateTrackBar()
        {
            if (_internalTrackBarChange)
                // A change is already in progress.
                return;
            _internalTrackBarChange = true;
            _userHasMadeChange = true;
            double? value = GetRelevantValue();
            if (null == value)
            {   // We have no way to express "no value" on the track bar.
                // (The histograms say that either extreme on the track bar means no value.
                // I tried that here and it didn't work as well.)
                // So I just igore this and do nothing.  The user already gets good feedback
                // somewhere else.
            }
            else
            {
                double rounded = Math.Round(value.Value);
                if (rounded > trackBar1.Maximum)
                    // This is higher than the highest value the track bar can represent. 
                    // So set the track bar to its highest value.
                    trackBar1.Value = trackBar1.Maximum;
                else if (rounded < trackBar1.Minimum)
                    trackBar1.Value = trackBar1.Minimum;
                else
                    trackBar1.Value = (int)rounded;
            }
            _internalTrackBarChange = false;
        }
        private void UpdateChart()
        {
            /*populate the series again immediately, before other calculations
* (e.g. getting yesterdayclose) (otherwise a bug appears when getting a value 
* from the series when it hasn't been refreshed with the new data for another symbol*/
            Bar bar = updateSeries();
            double upFromCloseBar = trackBar1.Value;

            double? yesterdaysClose = getYesterdaysClose(); //
            if (null == yesterdaysClose)
            {
                return;
            }

            //get *today's close* for the y-value ; when given a trackbar value( which is a  bar UpFromClose)
            double value = yesterdaysClose.Value + (upFromCloseBar * _symbolBarsizeInUse);
            if (_userHasMadeChange)
                DrawChart(value, bar);
            else
                DrawChart();

            _minMaxSummary.MinValue = FilterToSummary(_container.MinValue);
            _minMaxSummary.MaxValue = FilterToSummary(_container.MaxValue);
            _minMaxSummary.Update();
            ScaleChart();
        }
        private void ScaleChart()
        {
            Axis yAxis = chart2.ChartAreas[0].AxisY;
            double? yClose = getYesterdaysClose(); 
            if (null == yClose) 
                return;

            double maxValue = MaxValueOnChart();
            double minValue = MinValueOnChart();
            double heightWithoutPadding = maxValue - minValue;
            double padding = 0.10 * heightWithoutPadding;
            maxValue = maxValue + padding;
            minValue = minValue - padding;

            if (maxValue != yAxis.Maximum)
                yAxis.Maximum = maxValue;
            if (minValue != yAxis.Minimum)
                yAxis.Minimum = minValue;
        }
        private double MaxValueOnChart()
        {
            double maxValue = double.NegativeInfinity;
            foreach (Series series in chart2.Series)
            {
                if (series.Points.Count > 0)
                {
                    double seriesMax = series.Points.Max(x => x.YValues.Max());
                    if (seriesMax > maxValue)
                        maxValue = seriesMax;
                }
            }
            Axis yAxis = chart2.ChartAreas[0].AxisY;
            return maxValue;
        }
        private double MinValueOnChart()
        {
            double minValue = double.PositiveInfinity;
            foreach (Series series in chart2.Series)
            {
                if (series.Points.Count > 0)
                {
                    double seriesMin = series.Points.Min(x => x.YValues.Min());
                    if (seriesMin != 0 && seriesMin < minValue)
                        minValue = seriesMin;
                }
            }
            Axis yAxis = chart2.ChartAreas[0].AxisY;
            return minValue;
        }
        private void UpdateTrackbar()
        {
            if (_internalTrackBarChange)
                // A change is already in progress.
                return;
            _internalTrackBarChange = true;
            _userHasMadeChange = true;
            double? value = GetRelevantValue();
            if (null == value)
            {   // We have no way to express "no value" on the track bar.
                // (The histograms say that either extreme on the track bar means no value.
                // I tried that here and it didn't work as well.)
                // So I just igore this and do nothing.  The user already gets good feedback
                // somewhere else.
            }
            else
            {
                double rounded = Math.Round(value.Value);
                if (rounded > trackBar1.Maximum)
                    // This is higher than the highest value the track bar can represent. 
                    // So set the track bar to its highest value.
                    trackBar1.Value = trackBar1.Maximum;
                else if (rounded < trackBar1.Minimum)
                    trackBar1.Value = trackBar1.Minimum;
                else
                    trackBar1.Value = (int)rounded;
            }
            _internalTrackBarChange = false;     
        }
        private double? getYesterdaysClose()
        {
            int members = chart2.Series[0].Points.Count;
            return chart2.Series[0].Points[members - 2].YValues[2]; //y-values[2} represents close
        }
        private void DrawChart(double value = 0, Bar lastBar = null)
        {
            stockSymbolLabel.Text = _stock.Symbol;
            stockDescriptionLabel.Text = _stock.Description;
            int tally = chart2.Series[0].Points.Count;
            DataPoint lastPoint = chart2.Series[0].Points[tally - 1];

            //move last point to reflect movement
            if (value > 0 && null != lastBar && null != lastPoint)
            {
                double diff = (value - lastBar.Close);
                lastPoint.YValues = new double[] { lastBar.High + diff, lastBar.Low + diff, lastBar.Close + diff, lastBar.Open + diff };

            }
            _minMaxSummary.X = chart2.Series[0].Points.Count;
            if (chart2.Series[1] != null)  //this is the default "column" chart that is present when one uses a chart control...
                chart2.Series[1].IsVisibleInLegend = false;
        }
        private Bar updateSeries()
        { 
            Series bars = chart2.Series[0];
            bars.Points.Clear();
            DataPoint lastPoint = null;
            Bar lastBar = null;
            foreach (Bar bar in _stock.Bars)
            {
                DataPoint point = new DataPoint();
                point.AxisLabel = bar.DisplayDate;
                point.YValues = bar.Values;

                bars.Points.Add(point);
                point.Color = bar.Color();
                lastPoint = point;
                lastBar = bar;
            }
            return lastBar;
        }
        private double FilterToChartPosition(double fromFilter) //"fromFilter" represents a "up-from-the-close (bars)"
        {
            double? yesterdayClosingValue = getYesterdaysClose();
            if (null != yesterdayClosingValue)
                return yesterdayClosingValue.Value + (fromFilter * _symbolBarsizeInUse);
            return 0;
        }
        private double? FilterToSummary(double? fromFilter)
        {
            if (null == fromFilter)
                return null;
            return FilterToChartPosition(fromFilter.Value);
        }
        private double? GetRelevantValue()
        {
            double largeNumber = LARGE;
            double? value = null;
            if (minRadioButton.Checked)
            {
                value = _container.MinValue;
            }
            else
            {
                value = _container.MaxValue;
            }
            if (value == null)
                return value;
            largeNumber = largeNumber * Math.Sign((double)value);
            return (Math.Abs((double)value) > LARGE) ? largeNumber : value;
        }
        private void trackBar1_Scroll(object sender, EventArgs e)
        {
            _userHasMadeChange = true;
            if (_internalTrackBarChange)
                // We changed the trackbar to match the text boxes.
                return;
            // The user directly moved the track bar.
            _internalTrackBarChange = true;  // Don't allow an echo!
            TextBox toChange = minRadioButton.Checked ? _container.MinTextBox : _container.MaxTextBox;
            toChange.Text = trackBar1.Value.ToString();
            _internalTrackBarChange = false;
        }
        private void minRadioButton_CheckedChanged(object sender, EventArgs e)
        {
            UpdateTrackBar();
            UpdateChart();
            ScaleChart();
        }

        private void maxRadioButton_CheckedChanged(object sender, EventArgs e)
        {
            UpdateTrackBar();
            UpdateChart();
            ScaleChart();
        }
        //pub
        private void timer1_Tick(object sender, EventArgs e)
        {
            _stock = RANDOM_SAMPLE;
            _symbolBarsizeInUse = getCurrentSymbolsBarSize(_stock);
            UpdateTrackBar();
            UpdateChart();
            ScaleChart();
            _minMaxSummary.Update();
        }
    }
}