using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Collections;

namespace Game
{
class Game
{
    double balance;
    History history = new History();

    public Game(double balance) {
        this.balance = balance;
    }
    public bool checkResult(int playerNumIsEven, int resultNum)
    {
        return (playerNumIsEven + resultNum) % 2 == 0;
    }
    public bool changeBalance(bool result, double bet)
    {
        balance += result ? bet : -bet;
        return balance > 0;
    }
    public int generateNum () {
        return new Random().Next();
    }
    public void printInfo(bool b ,bool d) {
        if (b)
            Console.WriteLine("You are win, your balance {0}n", balance);
        else
            Console.WriteLine("You are lose, your balance {0}n", balance);

        if (!d) {
            Console.WriteLine("balance is emptyn");
            theEnd();
        }

    }
    public void theEnd() {
        history.printInfo();
        Console.WriteLine("Enter to exit...");
        Console.ReadLine();
        Environment.Exit(0);
    }

    public void play() {
        while (true)
        {
            Console.WriteLine("input odd or even, or smt else for exit.");
            string forecast = Console.ReadLine().ToLower();
            if (forecast != "even" && forecast != "odd")
            {
                theEnd();
            }
            else {
                double bet;
                while (true)
                {
                    Console.WriteLine("input your bet");
                    while (true) {
                        bet = double.Parse(Console.ReadLine());
                        if (bet > 0)
                            break;
                        else {
                            Console.WriteLine("your input is incorrect, please input correct num");
                        }
                    }


                    if (bet > balance)
                        Console.WriteLine("incorrect");
                    else
                        break;
                }
                int random = generateNum();
                Console.WriteLine("generated num: {0}", random);
                bool result = checkResult(forecast == "even" ? 0 : 1, random);
                bool ended = changeBalance(result, bet);
                history.addToHistory(result, balance);
                printInfo(result, ended);
            }
        }
    }
}