Module: Hotfile::Parser

Included in:
Hotfile
Defined in:
lib/hotfile/parser.rb

Overview

Functions for parsing HOT file data

Instance Method Summary collapse

Instance Method Details

#parse ⇒ Object 



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# File 'lib/hotfile/parser.rb', line 6

def parse
  return if @file.nil?

  records = @file.lines(chomp: true).map { |line| parse_line line }
  @parse ||= {
    records: records,
    date: records.map { |x| x[:date] }.compact.first,
    doc_nr: records.map { |x| x[:doc_nr] }.compact.first,
    transactions: records.map { |x| x[:transaction] }.compact.uniq.count
  }
end

#parse_line(line) ⇒ Object 



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# File 'lib/hotfile/parser.rb', line 22

def parse_line(line)
  code1, line_number, code2, payload = line.scan(/([A-Z]{3})(\d{8})(\d{2})(.*)/).flatten
  code = code1 + code2
  line_number = line_number.to_i

  if (10..81).include? code2.to_i
    date, transaction, doc_nr, check_digit, payload =
      payload.scan(/
        (\d{6})
        (\d{6})
        ([A-Z0-9 ]{14})
        (\d)
        (.*)
      /x).flatten
  end

  begin
    record_parser = Hotfile::Record.const_get(code)
  rescue NameError
    # Record type does not have a class implementing it.
  end
  data = record_parser.new(payload).parse if record_parser

  {
    code: { id: code, category: code1, number: code2.to_i },
    line_number: line_number,
    raw_payload: payload.strip,
    date: Hotfile::Date.new(date).to_date,
    transaction: transaction&.to_i,
    doc_nr: doc_nr&.strip,
    check_digit: check_digit&.to_i,
    data: data
  }
end

#unparsable ⇒ Object 



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# File 'lib/hotfile/parser.rb', line 18

def unparsable
  parse[:records].select! { |x| x[:data].nil? }
end