// Tyler Rigsby, CSE 142
// Contains a class that defines a bank account, with the following state:
//    - id (int)
//    - name (String)
//    - balance (double)
//    - num transactions (int)
public class BankAccount {
    private int id;
    private String name;
    private double balance;
    private int transactionCount;

    private static int numAccounts = 0;

    
    // Initializes a BankAccount object with the specified parameters
    public BankAccount(String name, double balance) {
        numAccounts++;
        this.id = numAccounts;
        this.name = name;
        this.balance = balance;
        this.transactionCount = 0;
    }
    
    // returns the balance of the bank account
    public double getBalance() {
        return balance;
    }
    
    // returns a string representation of the account
    public String toString() {
        return "account #" + id + ", belongs to: " + name + ", balance: $" +
                balance + ", num transactions: " + transactionCount;
    }
    
    // takes an amount as a paremeter, and if the amount is greater than 0, adds the amount
    // to the balance and increments the transaction counter
    public void deposit(double amount) {
        if (amount > 0) {
            balance += amount;
            transactionCount++;
        }
    }
    
    // takes an amount as a paremeter and if the amount is greater than 0 but less than or
    // equal to the balance, decrements the balance by that amount. Otherwise prints an error message
    public void withdraw(double amount) {
        if (amount > 0 && amount <= balance) {
            balance -= amount;
            transactionCount++;
        } else {
            System.out.println("Amount exceeds balance");
        }
    }
    
}