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# frozen_string_literal: true
module Faker
class Finance < Base
CREDIT_CARD_TYPES = %i[visa mastercard discover american_express
diners_club jcb switch solo dankort
maestro forbrugsforeningen laser].freeze
MARKET_LIST = %i[nyse nasdaq].freeze
class << self
##
# Produces a random credit card number.
#
# @param types [String] Specific credit card type.
# @return [String]
#
# @example
# Faker::Finance.credit_card #=> "3018-348979-1853"
# Faker::Finance.credit_card(:mastercard) #=> "6771-8921-2291-6236"
# Faker::Finance.credit_card(:mastercard, :visa) #=> "4448-8934-1277-7195"
#
# @faker.version 1.2.0
def credit_card(*types)
types = CREDIT_CARD_TYPES if types.empty?
type = sample(types)
template = numerify(fetch("finance.credit_card.#{type}"))
# calculate the luhn checksum digit
multiplier = 1
luhn_sum = template.gsub(/[^0-9]/, '').chars.reverse.map(&:to_i).inject(0) do |sum, digit|
multiplier = (multiplier == 2 ? 1 : 2)
sum + (digit * multiplier).to_s.chars.map(&:to_i).inject(0) { |digit_sum, cur| digit_sum + cur }
end
# the sum plus whatever the last digit is must be a multiple of 10. So, the
# last digit must be 10 - the last digit of the sum.
luhn_digit = (10 - (luhn_sum % 10)) % 10
template.gsub('L', luhn_digit.to_s)
end
##
# Produces a random vat number.
#
# @param country [String] Two capital letter country code to use for the vat number.
# @return [String]
#
# @example
# Faker::Finance.vat_number #=> "BR38.395.329/2471-83"
# Faker::Finance.vat_number('DE') #=> "DE593306671"
# Faker::Finance.vat_number('ZA') #=> "ZA79494416181"
#
# @faker.version 1.9.2
def vat_number(country: 'BR')
numerify(fetch("finance.vat_number.#{country}"))
rescue I18n::MissingTranslationData
raise ArgumentError, "Could not find vat number for #{country}"
end
def vat_number_keys
translate('faker.finance.vat_number').keys
end
##
# Returns a randomly-selected stock ticker from a specified market.
#
# @param markets [String] The name of the market to choose the ticker from (e.g. NYSE, NASDAQ)
# @return [String]
#
# @example
# Faker::Finance.ticker #=> 'AMZN'
# Faker::Finance.vat_number('NASDAQ') #=> 'GOOG'
#
# @faker.version next
def ticker(*markets)
markets = MARKET_LIST if markets.empty?
market = sample(markets)
fetch("finance.ticker.#{market}")
rescue I18n::MissingTranslationData
raise ArgumentError, "Could not find market named #{market}"
end
##
# Returns a randomly-selected stock market.
#
# @return [String]
#
# @example
# Faker::Finance.stock_market #=> 'NASDAQ'
#
# @faker.version next
def stock_market
fetch('finance.stock_market')
end
##
# Returns a random condominium fiscal code.
#
# @param country [String] Two capital letter country code to use for the condominium fiscal code number.
# @return [String]
#
# @example
# Faker::Finance.condominium_fiscal_code #=> "01234567890"
#
# @faker.version next
def condominium_fiscal_code(country: 'IT')
numerify(fetch("finance.condominium_fiscal_code.#{country}"))
end
end
end
end
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