Class: PaperlessToXero::Converter

Inherits:
Object
  • Object
show all
Defined in:
lib/paperless_to_xero/converter.rb

Constant Summary collapse

VAT_RATE_CHANGE_2008_12_01 = 
Date.parse('2008-12-01')
VAT_RATE_CHANGE_2010_01_01 = 
Date.parse('2010-01-01')
VAT_RATE_CHANGE_2011_01_04 = 
Date.parse('2011-01-04')

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(input_path, output_path) ⇒ Converter

Returns a new instance of Converter.



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# File 'lib/paperless_to_xero/converter.rb', line 13

def initialize(input_path, output_path)
  @input_path, @output_path = input_path, output_path
end

Instance Attribute Details

#input_path ⇒ Object (readonly)

Returns the value of attribute input_path.



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# File 'lib/paperless_to_xero/converter.rb', line 11

def input_path
  @input_path
end

#output_path ⇒ Object (readonly)

Returns the value of attribute output_path.



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# File 'lib/paperless_to_xero/converter.rb', line 11

def output_path
  @output_path
end

Instance Method Details

#convert! ⇒ Object 



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# File 'lib/paperless_to_xero/converter.rb', line 75

def convert!
  # grab the input
  parse
  # open the output CSV
  CSV.open(output_path, 'w') do |writer|
    # Xero header row
    writer << ['ContactName','InvoiceNumber','InvoiceDate','DueDate','SubTotal',
               'TotalTax','Total','Description','Quantity','UnitAmount','AccountCode','TaxType','TaxAmount',
               'TrackingName1','TrackingOption1','TrackingName2','TrackingOption2']
    
    # body rows
    invoices.each do |invoice|
      invoice.serialise_to_csv(writer)
    end
  end
end

#invoices ⇒ Object 



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# File 'lib/paperless_to_xero/converter.rb', line 17

def invoices
  @invoices ||= []
end

#parse ⇒ Object 



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# File 'lib/paperless_to_xero/converter.rb', line 25

def parse
  input_csv = CSV.read(input_path)
  # verify Paperless header row
  verify_header_row!(input_csv.shift)
  
  input_csv.each_with_index do |row, index|
    line_number = index + 1
    date, merchant, paperless_currency, amount, vat, category, payment_method, notes_field, description, reference, status, *extras = row
    negative = amount.index('--') == 0
    category = category[0..2] unless category.nil?
    unless negative # negative stuff ought to be a credit note. not sure if that works...
      # process amounts for commas added by Paperless
      amount = amount.tr(',', '') unless amount.nil?
      vat = vat.tr(',', '') unless vat.nil?
      notes = extract_notes(notes_field)
      total_vat = vat.nil? ? "0.00" : vat
      invoice = PaperlessToXero::Invoice.new(extract_date(date), merchant, reference, amount, total_vat, inc_vat?(notes), extract_currency(notes))
      if extras.empty?
        begin
          invoice.add_item(description, amount, vat, category, extract_vat_note(invoice.date, vat, notes))
        rescue
          raise BadItem.new(line_number, row, "Couldn't process this item")
        end
      else
        raise IncorrectNumberOfColumns.new(line_number, row, "Extra items are badly formatted") unless extras.size % 6 == 0
        items = chunk_extras(extras)
        items.each do |item|
          begin
            description, paperless_currency, amount, unknown, category, notes_field = item
            category = category[0..2]
            notes = extract_notes(notes_field)
            vat_amount = extract_vat_amount(notes)
            vat_note = extract_vat_note(invoice.date, vat_amount, notes)
            invoice.add_item(description, amount, vat_amount, category, vat_note)
          rescue
            raise BadItem.new(line_number, row, "Couldn't process this item")
          end
        end
      end
      invoices << invoice
      
      # currency fudging
      # actual_currency_match = notes.nil? ? nil : notes.match(/(\$|€|DKK|USD|EUR)/)
      # actual_currency = actual_currency_match.nil? ? nil : actual_currency_match[1]
      # 
      # description = description + " (#{actual_currency})" unless actual_currency.nil?
    end
  end
end

#verify_header_row!(row) ⇒ Object

Raises:



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# File 'lib/paperless_to_xero/converter.rb', line 21

def verify_header_row!(row)
  raise UnknownHeaderRow unless row == PaperlessToXero::PAPERLESS_HEADER_ROW
end