Ruby Methods Code Challenge

# Now that we know the differences between the different kinds of methods,
# try writing a program with a protected method. Have that method raise a
# specific custom error if it's called inappropriately.

class BankAccount
  module Error
    class MyError < StandardError; end
  end

  def self.create_for(first_name, last_name)
    @accounts ||= []
    @accounts << BankAccount.new(first_name, last_name)
  end

  def self.find_account(first_name, last_name)
    @accounts.find {|account| account.full_name == "#{first_name} #{last_name}"}
  end

 def self.account_list
    @accounts
 end

  def initialize(first_name, last_name)
      @first_name = first_name
      @last_name = last_name
      @balance = 0
  end

  def full_name
    "#{@first_name} #{@last_name}"
  end

  def deposit(amount)
    #a begin rescue block raises the error, and prints a message        
    begin
        raise Error::MyError if amount <= 0
    rescue
        p "a deposit cannot be smaller than 0. You tried to deposit #{amount}"
    end
    #now deposit to the account
    @balance += amount if amount > 0
  end

  def withdraw(amount)
     @balance -= amount
  end

  def balance
    @balance
  end

  protected
  def protected_reset
    @balance = 0
  end
end