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module Effective
class TaxRateCalculator
attr_reader :order, :country_code, :state_code
RATES = {
'CA' => { # Canada
'AB' => 5.00, # Alberta
'BC' => 5.00, # British Columbia
'MB' => 5.00, # Manitoba
'NB' => 15.0, # New Brunswick
'NL' => 15.0, # Newfoundland and Labrador
'NT' => 5.00, # Northwest Territories
'NS' => 15.0, # Nova Scotia
'ON' => 13.0, # Ontario
'PE' => 15.0, # Prince Edward Island
'QC' => 5.00, # Quebec
'SK' => 5.00, # Saskatchewan
'YT' => 5.00, # Yukon Territory
'NU' => 5.00 # Nunavut
}
}
def initialize(order: nil, country_code: nil, state_code: nil)
@order = order
@country_code = country_code
@state_code = state_code
raise 'expected an order, or a country and state code' unless (order || country_code)
raise 'expected an order OR a country and state code. Not both.' if (order && country_code)
end
def tax_rate
country = country_code || (order.billing_address.country_code if order.billing_address.present?)
state = state_code || (order.billing_address.state_code if order.billing_address.present?)
rate = RATES[country]
return rate if rate.kind_of?(Numeric)
return unknown_tax_rate() if rate.nil?
rate[state].presence || unknown_tax_rate()
end
def unknown_tax_rate
(order && order.skip_buyer_validations?) ? nil : 0
end
end
end
Version data entries
94 entries across 94 versions & 1 rubygems