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fab-manager/app/services/payment_document_service.rb
2021-01-04 16:26:52 +01:00

156 lines
5.4 KiB
Ruby

# frozen_string_literal: true
# Provides methods to generate Invoice, Avoir or PaymentSchedule references
class PaymentDocumentService
class << self
def generate_reference(document, date: DateTime.current)
pattern = Setting.get('invoice_reference')
reference = replace_invoice_number_pattern(pattern)
reference = replace_date_pattern(reference, date)
if document.class == Avoir
# information about refund/avoir (R[text])
reference.gsub!(/R\[([^\]]+)\]/, '\1')
# remove information about online selling (X[text])
reference.gsub!(/X\[([^\]]+)\]/, ''.to_s)
# remove information about payment schedule (S[text])
reference.gsub!(/S\[([^\]]+)\]/, ''.to_s)
elsif document.class == PaymentSchedule
# information about payment schedule
reference.gsub!(/S\[([^\]]+)\]/, '\1')
# remove information about online selling (X[text])
reference.gsub!(/X\[([^\]]+)\]/, ''.to_s)
# remove information about refunds (R[text])
reference.gsub!(/R\[([^\]]+)\]/, ''.to_s)
elsif document.class == Invoice
# information about online selling (X[text])
if document.paid_with_stripe?
reference.gsub!(/X\[([^\]]+)\]/, '\1')
else
reference.gsub!(/X\[([^\]]+)\]/, ''.to_s)
end
# remove information about refunds (R[text])
reference.gsub!(/R\[([^\]]+)\]/, ''.to_s)
# remove information about payment schedule (S[text])
reference.gsub!(/S\[([^\]]+)\]/, ''.to_s)
else
raise TypeError
end
reference
end
def generate_order_number(invoice)
pattern = Setting.get('invoice_order-nb')
# global document number (nn..nn)
reference = pattern.gsub(/n+(?![^\[]*\])/) do |match|
pad_and_truncate(number_of_invoices('global'), match.to_s.length)
end
reference = replace_invoice_number_pattern(reference)
replace_date_pattern(reference, invoice.created_at)
end
private
##
# Output the given integer with leading zeros. If the given value is longer than the given
# length, it will be truncated.
# @param value {Integer} the integer to pad
# @param length {Integer} the length of the resulting string.
##
def pad_and_truncate(value, length)
value.to_s.rjust(length, '0').gsub(/^.*(.{#{length},}?)$/m, '\1')
end
##
# Returns the number of current invoices in the given range around the current date.
# If range is invalid or not specified, the total number of invoices is returned.
# @param range {String} 'day', 'month', 'year'
# @return {Integer}
##
def number_of_invoices(range)
case range.to_s
when 'day'
start = DateTime.current.beginning_of_day
ending = DateTime.current.end_of_day
when 'month'
start = DateTime.current.beginning_of_month
ending = DateTime.current.end_of_month
when 'year'
start = DateTime.current.beginning_of_year
ending = DateTime.current.end_of_year
else
return get_max_id(Invoice) + get_max_id(PaymentSchedule)
end
return Invoice.count + PaymentSchedule.count unless defined? start && defined? ending
Invoice.where('created_at >= :start_date AND created_at < :end_date', start_date: start, end_date: ending).length +
PaymentSchedule.where('created_at >= :start_date AND created_at < :end_date', start_date: start, end_date: ending).length
end
##
# Replace the date elements in the provided pattern with the date values, from the provided date
# @param reference {string}
# @param date {DateTime}
##
def replace_date_pattern(reference, date)
copy = reference.dup
# full year (YYYY)
copy.gsub!(/YYYY(?![^\[]*\])/, date.strftime('%Y'))
# year without century (YY)
copy.gsub!(/YY(?![^\[]*\])/, date.strftime('%y'))
# abbreviated month name (MMM)
copy.gsub!(/MMM(?![^\[]*\])/, date.strftime('%^b'))
# month of the year, zero-padded (MM)
copy.gsub!(/MM(?![^\[]*\])/, date.strftime('%m'))
# month of the year, non zero-padded (M)
copy.gsub!(/M(?![^\[]*\])/, date.strftime('%-m'))
# day of the month, zero-padded (DD)
copy.gsub!(/DD(?![^\[]*\])/, date.strftime('%d'))
# day of the month, non zero-padded (DD)
copy.gsub!(/DD(?![^\[]*\])/, date.strftime('%-d'))
copy
end
##
# Replace the document number elements in the provided pattern with counts from the database
# @param reference {string}
##
def replace_invoice_number_pattern(reference)
copy = reference.dup
# document number per year (yy..yy)
copy.gsub!(/y+(?![^\[]*\])/) do |match|
pad_and_truncate(number_of_invoices('year'), match.to_s.length)
end
# document number per month (mm..mm)
copy.gsub!(/m+(?![^\[]*\])/) do |match|
pad_and_truncate(number_of_invoices('month'), match.to_s.length)
end
# document number per day (dd..dd)
copy.gsub!(/d+(?![^\[]*\])/) do |match|
pad_and_truncate(number_of_invoices('day'), match.to_s.length)
end
copy
end
##
# Return the maximum ID from the database, for the given class
# @param klass {ActiveRecord::Base}
##
def get_max_id(klass)
ActiveRecord::Base.connection.execute("SELECT max(id) FROM #{klass.table_name}").getvalue(0, 0) || 0
end
end
end