# coding: utf-8

require 'bigdecimal'
require 'cgi'
require 'singleton'
require 'roxml'
require 'andand'

module ONIX
  class Formatters
    def self.decimal
      lambda do |val|
        if val.nil?
          nil
        elsif val.kind_of?(BigDecimal)
          val.to_s("F")
        else
          val.to_s
        end
      end
    end

    def self.yyyymmdd
      lambda do |val|
        if val.nil? || !val.respond_to?(:strftime)
          nil
        else
          val.strftime("%Y%m%d")
        end
      end
    end

    def self.two_digit
      padded_number(2)
    end
    
    def self.three_digit
      padded_number(3)
    end
    
    def self.padded_number(n)
      lambda do |val|
        if val.nil?
          nil
        elsif val >= 0 && val < 10**n
          sprintf("%0#{n}d", val)
        else
          raise ArgumentError, "Value '#{val}' does not conform to #{n}-digit restrictions"
        end
      end
    end
  end
end

# core files
# - ordering is important, classes need to be defined before any
#   other class can use them
require File.join(File.dirname(__FILE__), "onix", "sender_identifier")
require File.join(File.dirname(__FILE__), "onix", "addressee_identifier")
require File.join(File.dirname(__FILE__), "onix", "header")
require File.join(File.dirname(__FILE__), "onix", "product_identifier")
require File.join(File.dirname(__FILE__), "onix", "series_identifier")
require File.join(File.dirname(__FILE__), "onix", "series")
require File.join(File.dirname(__FILE__), "onix", "set")
require File.join(File.dirname(__FILE__), "onix", "title")
require File.join(File.dirname(__FILE__), "onix", "work_identifier")
require File.join(File.dirname(__FILE__), "onix", "website")
require File.join(File.dirname(__FILE__), "onix", "contributor")
require File.join(File.dirname(__FILE__), "onix", "language")
require File.join(File.dirname(__FILE__), "onix", "subject")
require File.join(File.dirname(__FILE__), "onix", "audience_range")
require File.join(File.dirname(__FILE__), "onix", "imprint")
require File.join(File.dirname(__FILE__), "onix", "publisher")
require File.join(File.dirname(__FILE__), "onix", "other_text")
require File.join(File.dirname(__FILE__), "onix", "media_file")
require File.join(File.dirname(__FILE__), "onix", "sales_restriction")
require File.join(File.dirname(__FILE__), "onix", "stock")
require File.join(File.dirname(__FILE__), "onix", "price")
require File.join(File.dirname(__FILE__), "onix", "supply_detail")
require File.join(File.dirname(__FILE__), "onix", "market_representation")
require File.join(File.dirname(__FILE__), "onix", "measure")
require File.join(File.dirname(__FILE__), "onix", "product")
require File.join(File.dirname(__FILE__), "onix", "reader")
require File.join(File.dirname(__FILE__), "onix", "writer")

# product wrappers
require File.join(File.dirname(__FILE__), "onix", "simple_product")
require File.join(File.dirname(__FILE__), "onix", "apa_product")
require File.join(File.dirname(__FILE__), "onix", "sl_product")

# misc
require File.join(File.dirname(__FILE__), "onix", "lists")
require File.join(File.dirname(__FILE__), "onix", "normaliser")
require File.join(File.dirname(__FILE__), "onix", "code_list_extractor")