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Reindent Money class

This commit is contained in:
Jose Farias 2024-04-18 20:01:58 -06:00
parent 996a2e1c75
commit cc7b878d50

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@ -1,73 +1,73 @@
class Money class Money
include Comparable include Comparable
include Arithmetic include Arithmetic
attr_reader :amount, :currency attr_reader :amount, :currency
class << self class << self
def default_currency def default_currency
@default ||= Money::Currency.new(:usd) @default ||= Money::Currency.new(:usd)
end
def default_currency=(object)
@default = Money::Currency.new(object)
end
end end
def initialize(obj, currency = Money.default_currency) def default_currency=(object)
unless obj.is_a?(Money) || obj.is_a?(Numeric) || obj.is_a?(BigDecimal) @default = Money::Currency.new(object)
raise ArgumentError, "obj must be an instance of Money, Numeric, or BigDecimal" end
end end
@amount = obj.is_a?(Money) ? obj.amount : BigDecimal(obj.to_s) def initialize(obj, currency = Money.default_currency)
@currency = obj.is_a?(Money) ? obj.currency : Money::Currency.new(currency) unless obj.is_a?(Money) || obj.is_a?(Numeric) || obj.is_a?(BigDecimal)
raise ArgumentError, "obj must be an instance of Money, Numeric, or BigDecimal"
end end
# TODO: Replace with injected rate store @amount = obj.is_a?(Money) ? obj.amount : BigDecimal(obj.to_s)
def exchange_to(other_currency, date = Date.current) @currency = obj.is_a?(Money) ? obj.currency : Money::Currency.new(currency)
return self if @currency == Money::Currency.new(other_currency) end
rate = ExchangeRate.find_rate(from: @currency, to: other_currency, date: date)
return nil if rate.nil?
Money.new(@amount * rate.rate, other_currency)
end
def cents_str(precision = @currency.default_precision) # TODO: Replace with injected rate store
format_str = "%.#{precision}f" def exchange_to(other_currency, date = Date.current)
amount_str = format_str % @amount return self if @currency == Money::Currency.new(other_currency)
parts = amount_str.split(@currency.separator) rate = ExchangeRate.find_rate(from: @currency, to: other_currency, date: date)
return nil if rate.nil?
Money.new(@amount * rate.rate, other_currency)
end
return "" if parts.length < 2 def cents_str(precision = @currency.default_precision)
format_str = "%.#{precision}f"
amount_str = format_str % @amount
parts = amount_str.split(@currency.separator)
parts.last.ljust(precision, "0") return "" if parts.length < 2
end
# Basic formatting only. Use the Rails number_to_currency helper for more advanced formatting. parts.last.ljust(precision, "0")
alias to_s format end
def format
whole_part, fractional_part = sprintf("%.#{@currency.default_precision}f", @amount).split(".")
whole_with_delimiters = whole_part.chars.to_a.reverse.each_slice(3).map(&:join).join(@currency.delimiter).reverse
formatted_amount = "#{whole_with_delimiters}#{@currency.separator}#{fractional_part}"
@currency.default_format.gsub("%n", formatted_amount).gsub("%u", @currency.symbol)
end
def to_json(*_args) # Basic formatting only. Use the Rails number_to_currency helper for more advanced formatting.
{ amount: @amount, currency: @currency.iso_code }.to_json alias to_s format
end def format
whole_part, fractional_part = sprintf("%.#{@currency.default_precision}f", @amount).split(".")
whole_with_delimiters = whole_part.chars.to_a.reverse.each_slice(3).map(&:join).join(@currency.delimiter).reverse
formatted_amount = "#{whole_with_delimiters}#{@currency.separator}#{fractional_part}"
@currency.default_format.gsub("%n", formatted_amount).gsub("%u", @currency.symbol)
end
def <=>(other) def as_json
raise TypeError, "Money can only be compared with other Money objects except for 0" unless other.is_a?(Money) || other.eql?(0) { amount: @amount, currency: @currency.iso_code }.as_json
return @amount <=> other if other.is_a?(Numeric) end
amount_comparison = @amount <=> other.amount
return amount_comparison unless amount_comparison == 0
@currency <=> other.currency
end
def default_format_options def <=>(other)
{ raise TypeError, "Money can only be compared with other Money objects except for 0" unless other.is_a?(Money) || other.eql?(0)
unit: @currency.symbol, return @amount <=> other if other.is_a?(Numeric)
precision: @currency.default_precision, amount_comparison = @amount <=> other.amount
delimiter: @currency.delimiter, return amount_comparison unless amount_comparison == 0
separator: @currency.separator @currency <=> other.currency
} end
end
def default_format_options
{
unit: @currency.symbol,
precision: @currency.default_precision,
delimiter: @currency.delimiter,
separator: @currency.separator
}
end
end end