import java.util.*;
import java.io.*;
public class EasyStockMoney
{
    public static void main(String [] args)
    throws FileNotFoundException
    {

        //Prompts user for stock name and the curret price
        Scanner console = new Scanner(System.in);
        System.out.println("Input the name of the stock");
        String stock = console.nextLine();
        System.out.println("Input the current price of the stock");
        double stockprice = console.nextDouble();

        //Reads the StockPurchaseHistory file for the amount of shares bought in the specific stock
        Scanner file = new Scanner(new File("StockPurchaseHistory.txt"));
        int sharecount = 0;
        double totalcost = 0.0;
        while(file.hasNextLine())
        {
            String line = file.nextLine();
            Scanner linescan = new Scanner(line);
            String companystock = linescan.next();
            if(companystock == stock)
            {
                int companyshares = linescan.nextInt();
                sharecount = sharecount + companyshares;
                double sharecost = linescan.nextDouble();
                //tax 2%
                sharecost = sharecost + (sharecost*0.02);
                totalcost = totalcost + (companyshares * sharecost);
            }
        }

        //calculates the current value of the companies shares
        double CurrentMarketValue = currentvalue(stockprice, sharecount);
        //calculates the current profit yield from the stock and gives you the predetermined warnings
        double Profit = ProfitCalculation(CurrentMarketValue, totalcost);
        System.out.println("Current Share Profit is" + Profit);
        if(Profit > 0.0)
        {
            if(1.30*totalcost <= CurrentMarketValue)
            {
                System.out.println("Your stock value per share has increased pass the 30 percent marker.");
                System.out.println("Would you like to sell it?");
            }
            else if(1.60*totalcost <= CurrentMarketValue)
            {
                System.out.println("Your stock value per share has increased pass the 60 percent marker.");
                System.out.println("Would you like to sell it?");
            }
        }
        if(Profit < 0.0)
        {
            if(.70*totalcost >= CurrentMarketValue)
            {
                System.out.println("!WARNING! YOUR STOCK VALUE HAS DECREASED PASS THE 30 PERCENT MARKER");
            }
            else if(.40*totalcost >= CurrentMarketValue)
            {
                System.out.println("!WARNING! YOUR STOCK VALUE HAS DECREASED PASS THE 60 PERCENT MARKER");
            }
        }
    }

    // method for calulating current market value of your stock in the specified company
    public static double currentvalue(double stockprice, int sharecount)
    {
        double CurrentValue = stockprice*sharecount;
        return CurrentValue;
    }

    //calculates the total profit yieled from said stock
    public static double ProfitCalculation(double CurrentMarketValue, double totalcost)
    {
        double Profit = CurrentMarketValue - totalcost;
        return Profit;
    }
}