/*
         * Constructor for graph window
         * Goes through the values in both the income and expenses lists associated with the current user
         * plots datapoints on two separate graphs depending on which list they come from
         *
         * May want to update the X axis in the future. Currently the x axis doesn't really make much sense to a lay person
         * but the income x-axis is used for pay periods. The x-axis for expenses should just sync up with the income axis.
         * The expenses x-axis is number of expenditures during the number of pay periods listed in the income graph x-axis
         *
         * */
        public Graph(List <MoneyData> expenses, List <MoneyData> income)
        {
            this.income   = income;
            this.expenses = expenses;
            InitializeComponent();

            if (expenses.Count > 0)
            {
                double Xmax = 0;     // adjusted max values
                double Ymax = 0;
                LineCharts.DataSeries ds = new LineCharts.DataSeries();
                ds.LineColor          = Brushes.Orange;
                ds.LineThickness      = 1;
                ds.SeriesName         = "Expenses";
                ds.Symbols.SymbolType = LineCharts.Symbols.SymbolTypeEnum.Circle;
                Expenses.OriginalData.DataList.Add(ds);
                //Graph expenses on expenses graph
                for (int i = 0; i < expenses.Count; i++)
                {
                    double x = i;
                    double y = expenses[i].Amount;
                    if (Xmax < x)
                    {
                        Xmax = x;
                    }
                    if (Ymax < y)
                    {
                        Ymax = y;
                    }

                    ds.LineSeries.Points.Add(new Point(x, y));
                }
                Expenses.Ymax  = Ymax * 1.1;
                Expenses.Ymin  = 0;
                Expenses.YTick = (Expenses.Ymax - Expenses.Ymin) / 10;
                Expenses.Xmin  = 0;
                Expenses.Xmax  = Xmax;
                Expenses.XTick = (Expenses.Xmax - Expenses.Xmin) / 10;



                Expenses.Refresh(); //Refreshes the graph to show changes
            }
            if (income.Count > 0)
            {
                double Xmax = 0; // adjusted max values
                double Ymax = 0;
                LineCharts.DataSeries ds = new LineCharts.DataSeries();
                ds.LineColor          = Brushes.Orange;
                ds.LineThickness      = 1;
                ds.SeriesName         = "Income";
                ds.Symbols.SymbolType = LineCharts.Symbols.SymbolTypeEnum.Circle;
                Income.OriginalData.DataList.Add(ds);
                for (int i = 0; i < income.Count; i++)
                {
                    double x = i;
                    double y = income[i].Amount;
                    if (Xmax < x)
                    {
                        Xmax = x;
                    }
                    if (Ymax < y)
                    {
                        Ymax = y;
                    }
                    ds.LineSeries.Points.Add(new Point(x, y));
                }
                Income.Ymax  = Ymax * 1.1;
                Income.Ymin  = 0;
                Income.YTick = (Expenses.Ymax - Income.Ymin) / 10;
                Income.Xmin  = 0;
                Income.Xmax  = Xmax;
                Income.XTick = (Expenses.Xmax - Income.Xmin) / 10;
                //Graph income on income graph
                Income.Refresh(); //Refreshes the graph to show changes
            }
        }