Graph.cs

using static SplashKitSDK.SplashKit;
using System.Globalization;
using CsvHelper;
using SplashKitSDK;
using System.IO;
using System;
using System.Drawing;
public class Graph : Item
{
    private List<double> prices = new List<double>();
    private IScrollBar _scrollBar;
    private double maxPrice = 0;
    private double minPrice = 0;

    public Graph(string symbol, float x , float y) : base(symbol, x, y)
    {
        LoadData();
        Height = 200;
        Width = 5;
        _scrollBar = new HorizontalScrollBar(X+360,Y-5,(int)X,(int)X+360);
        Console.WriteLine(prices.Count);
    }
    public Graph(string symbol,float x, float y , double[] predictedPrices):base(symbol,x,y){
        LoadPredictedData(predictedPrices);
        LoadData();
        Height = 200;
        Width = 5;
        _scrollBar = new HorizontalScrollBar(X+360,Y-5,(int)X,(int)X+360);
        Console.WriteLine(prices.Count);
    }
    public override void Draw()
    {
        for (int i = 0; i < prices.Count-1 ; i++)
        {
            double y1 = prices[i];
            double x1 = X+420 - i * Width-(_scrollBar.GetScrollValue()-1)*prices.Count*Width;
            double x2 = X+420 - (i+1) * Width-(_scrollBar.GetScrollValue()-1)*prices.Count*Width;
            double y2 = prices[i+1];
            if(y1 > y2){
            DrawLine(ColorGreen(), x1, Y - (y1-minPrice) / (maxPrice-minPrice) * Height, x2, Y - (y2-minPrice) / (maxPrice-minPrice) * Height);
            }else if(y1 < y2){
                DrawLine(ColorRed(), x1, Y - (y1-minPrice) / (maxPrice-minPrice) * Height, x2, Y - (y2-minPrice) / (maxPrice-minPrice) * Height);
            }else DrawLine(RGBColor(0,216,255), x1, Y - (y1-minPrice) / (maxPrice-minPrice) * Height, x2, Y - (y2-minPrice) / (maxPrice-minPrice) * Height);
        }
    }
    public void Update(){
        _scrollBar.Update();
    }
    public void LoadData()
    {
        try{
            using (var reader = new StreamReader($"Historical Prices/{Name}.csv")){
                using (var csv = new CsvReader(reader, CultureInfo.InvariantCulture))
                {
                    string headerLine = reader.ReadLine();
                    // Read the CSV data into a list of StockData objects
                    while(!reader.EndOfStream){
                        var record = reader.ReadLine();
                        var values = record.Split(',');
                        string PriceStr = values[1].Replace("$","");
                        if(double.TryParse(PriceStr, NumberStyles.AllowDecimalPoint, CultureInfo.InvariantCulture, out double price)){
                            prices.Add(price);
                        }else{
                            continue;
                        }
                    }
                    // Calculate the maximum price for scaling the graph
                    maxPrice = prices.Max();
                    minPrice = prices.Min();
                    double range = maxPrice - minPrice;
                    maxPrice += range * 0.05;
                    minPrice -= range * 0.05;
                }
            }
        }catch (Exception)
        {}
    }
    public void LoadPredictedData(double[] predictedPrices){
        for (int i = 0; i < predictedPrices.Count(); i++)
        {
            prices.Reverse();
            prices.Add(predictedPrices[i]);
        }
    }
    public int GetLength(){
        return prices.Count;
    }
    public IScrollBar ScrollBar{get=>_scrollBar;}
}