namespace MyNS
{
    public partial class ChartDoubleTimeControl : UserControl
    {
        private List<List<KeyValuePair<DateTime, double>>> m_DataCollection;
        private List<SolidColorBrush> m_Palette;
        private string m_LegendVisibility;

        public ChartDoubleTimeControl()
        {
            InitializeComponent();
            DataContext = this;
            m_DataCollection = null;
            m_Palette = new List<SolidColorBrush>();
            m_Palette.Add(Brushes.Green);
            m_Palette.Add(Brushes.Red);
            m_Palette.Add(Brushes.Blue);
            m_Palette.Add(Brushes.Yellow);
            m_Palette.Add(Brushes.Gray);
            m_Palette.Add(Brushes.Orange);
        }

        public string LegendVisibility
        {
            get { return m_LegendVisibility; }
            set { m_LegendVisibility = value; }
        }

        public void RefreshChart()
        {
            this.Dispatcher.Invoke((Action)(() =>
            {
                LoadChartData();
            }));
        }

        public void setDataCollection(List<List<KeyValuePair<DateTime, double>>> nDataCollection, List<string> nLegend, bool isSeries)
        {
            m_DataCollection = nDataCollection;

            if (isSeries)
            {
                for (int i = (LineChart.Series.Count - 1); i > -1; i--)
                {
                    LineChart.Series.Remove(LineChart.Series[i]);
                }
            }

            LineSeries mySeries = null;

            if (!isSeries)
            {
                LegendVisibility = "0";
            }
            else
            {
                LegendVisibility = "Auto";
            }

            if (isSeries)
            {
                for (int i = 0; i < m_DataCollection.Count; i++)
                {
                    if (nLegend.Count > 0)
                    {
                        mySeries = new LineSeries();
                        mySeries.DependentValuePath = "Value";
                        mySeries.IndependentValuePath = "Key";
                        mySeries.ItemsSource = m_DataCollection[i];
                        mySeries.Title = nLegend[i];
                        Style style = new Style { TargetType = typeof(LineDataPoint) };
                        style.Setters.Add(new Setter(ColumnDataPoint.BackgroundProperty, m_Palette[i]));
                        mySeries.DataPointStyle = style;

                        LineChart.Series.Add(mySeries);
                    }
                }
            }
            else
            {
                SeriesColumn.ItemsSource = m_DataCollection[0];
            }
        }

        public void LoadChartData()
        {
            MyHelper resultHelper = new MyHelper();
            LineChart.Title = "Title";


            List<List<KeyValuePair<DateTime, double>>> DataCollection = new List<List<KeyValuePair<DateTime, double>>>();
            DataCollection.Add(new List<KeyValuePair<DateTime, double>>());
            List<string> Legend = new List<string>();
            bool isSeries = false;

            Dictionary<DateTime, double> result = resultHelper.GetPoints();
            for (int i = 0; i < result.Count; i++)
                DataCollection[0].Add(new KeyValuePair<DateTime, double>(result.ElementAt(i).Key, result.ElementAt(i).Value));
            isSeries = false;
            setDataCollection(DataCollection, Legend, isSeries);
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            RefreshChart();
        }
    }
}