25 lines
780 B
Ruby
25 lines
780 B
Ruby
require 'bigdecimal'
|
|
|
|
# Number formatting shared by the HTML views and the PDF so they can't drift.
|
|
module Fmt
|
|
module_function
|
|
|
|
# Exchange rate: full captured precision (up to 8 dp), trailing zeros
|
|
# trimmed, padded to at least min_dp so it reads as a rate. (4 dp matches
|
|
# the NBG's GEL quoting.)
|
|
def rate(value, min_dp: 4)
|
|
int, frac = BigDecimal(value.to_s).round(8).to_s('F').split('.')
|
|
frac = (frac || '').sub(/0+$/, '').ljust(min_dp, '0')
|
|
"#{group(int)}.#{frac}"
|
|
end
|
|
|
|
# LTC amount: up to 8 dp, trailing zeros trimmed, no padding.
|
|
def ltc(value)
|
|
BigDecimal(value.to_s).round(8).to_s('F').sub(/(\.\d*?)0+$/, '\1').sub(/\.$/, '')
|
|
end
|
|
|
|
# "1234567" -> "1,234,567"
|
|
def group(int)
|
|
int.reverse.gsub(/(\d{3})(?=\d)/, '\1,').reverse
|
|
end
|
|
end
|