function.rb

#	I am a bank.
#	I need PEOPLE to give their name and open an account.
#	If the account balance < 10, then send them warning email.
#	If the account balance < 0, then close the account
#	If the account balance > 10M, then send them a "thank you" email

#	I have a customer X. X's balance is $10.
#	Today: X walks in. Deposits $40. New balance $50.
#	Tomorrow: X walks in. Deposits $33. New balance $83.
#	After that: X walks in. Withdraws $3. New balance $80.
#	After that: X walks in. Deposits $20M. New balance $20,000,080.

x_money = 10
puts "Before day 1"
puts x_money

# function definition
def deposit(value, x_money, day)
  puts "Day #{day}"
  x_money = x_money + value
  puts x_money

  if (x_money < 10)
    puts "WARNING"
  end

  if (x_money > 10_000_000)
    puts "Thanks!"
  end

  x_money # Ignore this
end

# Day 1
x_money = deposit(40, x_money, 1) # function call
# Day 2
x_money = deposit(33, x_money, 2)
# Day 3
x_money = deposit(-3, x_money, 3)
# Day 4
x_money = deposit(20_000_000, x_money, 4)
# Day 5
x_money = deposit(-10_000_000, x_money, 5)
# Day 6
x_money = deposit(-10_000_080, x_money, 6)