#include <iostream>
#include <iomanip>
#include <string>

using namespace std;

int main() {
    double balance = 15.00;
    char choice;
    char coinchoice;
    int coinFlip;
    string flip;

    if (balance < 0) {
        cout << "Can't play, sorry" << endl;
    }

    cout    << "Welcome to the coin flip game!\nIt will cost 1 dollar to play.\nIf you guess correctly, you will match your bet one to one.\n"
            << endl;
    cout << "Would you like to play? <Y/N>" << endl;

    do {
        do {
            cin >> choice;
            choice == tolower(choice);
        } while ((choice != 'y' && choice != 'n') && cout << "Valid choice, please" << endl);

        if (choice == 'y' && balance >= 0.00) {

            cout << fixed << setprecision(2) << "You have $" << balance << endl;
            cout << "Guess heads or tails and I will tell you if you guessed correctly. <H/T> " << endl;
            cin >> coinchoice;
            coinchoice = tolower(coinchoice);
            while (coinchoice != 'h' && coinchoice !=
                                        't') // this has to be right after the h/t input so the console doesn't give you a coinflip value
            {
                cout << "That is not a valid input...\nGuess either heads or tails. <H/T>" << endl;
                cin >> coinchoice;
            }

            coinchoice = coinchoice == 'h' ? 1 : 0;
            srand(time(NULL));
            coinFlip = rand() % 2;  // Use the random number function to get either 0 or 1 and then an if statement to treat 0 to heads.
            flip = coinFlip == 1 ? "heads" : "tails";

            cout << "The coin landed on " << flip << endl;
            if (coinchoice == coinFlip) {
                cout << "You win!" << endl;
                balance += 1.00;
            } else {
                cout << "You lose! " << endl;
                balance -= 1.00;
            }

            cout << "Your balance is now: " << balance << endl;
            std::cout << "Play again? " << std::endl;
        }

    } while (choice != 'n' && balance >= 0);

    cout << "Thank you for playing. Your bank balance is now $" << balance << endl;
    return 0;
}