Module: Moneymarket::Calculator

Extended by:
Calculator
Included in:
Calculator
Defined in:
lib/moneymarket/utils/calculator.rb

Instance Method Summary collapse

Instance Method Details

#fee(amount: nil, percent: nil) ⇒ Object 



16
17
18
19
 
# File 'lib/moneymarket/utils/calculator.rb', line 16

def fee(amount: nil, percent: nil)
  result = (amount.cents * (percent.to_d / 100)).floor # fees always round to floor
  Money.new result, amount.currency
end

#order_fee(order: nil, collected_amount: nil) ⇒ Object

move this to command



21
22
23
24
25
 
# File 'lib/moneymarket/utils/calculator.rb', line 21

def order_fee(order: nil, collected_amount: nil) # move this to command
  collected_amount = order.collected_amount if collected_amount.nil?
  fee_cents = (collected_amount.cents * (order.fee.to_d / 100)).floor
  Money.new fee_cents, collected_amount.currency
end

#quote(volume: nil, unit_price: nil) ⇒ Object 



5
6
7
8
9
 
# File 'lib/moneymarket/utils/calculator.rb', line 5

def quote(volume: nil, unit_price: nil)
  base_currency = volume.currency
  quote = ((unit_price.cents * volume.cents).to_d / base_currency.subunit_to_unit).ceil
  Money.new quote, unit_price.currency
end

#volume(quote: nil, unit_price: nil, unit_currency: nil) ⇒ Object 



11
12
13
14
 
# File 'lib/moneymarket/utils/calculator.rb', line 11

def volume(quote: nil, unit_price: nil, unit_currency: nil)
  volume = ((quote.cents * unit_currency.subunit_to_unit).to_d / unit_price.cents).floor
  Money.new volume, unit_currency
end