Class: ExtrasDeCont::Rules::Revolut

Inherits:
Base
  • Object
show all
Defined in:
lib/extras_de_cont/rules/revolut.rb

Overview

Rules for parsing Revolut bank statements.

Constant Summary collapse

SECTION_HEADERS = 
[
  "Pending from ",
  "Account transactions from ",
  "Reverted from ",
  "Deposit transactions from ",
  "Transactions from "
].freeze
DOCUMENT_NOISE_HEADERS = 
[
  "Account statement",
  "Balance summary",
  "The balance on your statement might differ",
  "There were no transactions during this period",
  "Transaction types",
  "Your funds are held and protected by a licensed bank",
  "Report lost or stolen card",
  "+",
  "Get help directly in app",
  "Get help directly In app",
  "Scan the QR code",
  "RON Statement",
  " Statement",
  "Generated on the ",
  "Revolut Bank UAB",
  "© "
].freeze
CURRENCY_SYMBOLS = 
{
  "$" => "USD",
  "€" => "EUR",
  "£" => "GBP",
  "zł" => "PLN",
  "Kč" => "CZK",
  "Ft" => "HUF",
  "лв" => "BGN",
  "₺" => "TRY",
  "₴" => "UAH"
}.freeze
DATE_FORMATS = 
["%b %e, %Y", "%e %b %Y"].freeze
DATE_PREFIX = 
/\A(?<date>(?:[A-Z][a-z]{2} \d{1,2}, \d{4}|\d{1,2} [A-Z][a-z]{2} \d{4}))\b/
NUMBER = 
/-?(?:\d{1,3}(?:[ ,]\d{3})+|\d+)\.\d{2}/
CURRENCY_SYMBOL = 
Regexp.union(CURRENCY_SYMBOLS.keys.sort_by { |symbol| -symbol.length })
AMOUNT = 
/(?:#{NUMBER} [A-Z]{3}|#{CURRENCY_SYMBOL}#{NUMBER}|#{NUMBER} ?#{CURRENCY_SYMBOL})/

Instance Method Summary collapse

Instance Method Details

#parse(text) ⇒ Object 



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# File 'lib/extras_de_cont/rules/revolut.rb', line 54

def parse(text)
  transactions = []
  current_table = nil
  current_lines = []

  each_normalized_line(text) do |line|
    if table_header?(line)
      flush_transaction(current_lines, transactions, current_table)
      current_table = extract_table(line)
      next
    end

    if document_noise?(line)
      flush_transaction(current_lines, transactions, current_table)
      next
    end

    if section_header?(line)
      flush_transaction(current_lines, transactions, current_table)
      current_table = nil
      next
    end

    next if ignorable_line?(line)
    next if current_table.nil?

    if line.match?(DATE_PREFIX)
      flush_transaction(current_lines, transactions, current_table)
      current_lines = [line]
    elsif current_lines.any?
      current_lines << line
    end
  end

  flush_transaction(current_lines, transactions, current_table)
  transactions
end