Class: CoinSync::Outputs::Summary

Inherits:
Base
  • Object
show all
Defined in:
lib/coinsync/outputs/summary.rb

Instance Method Summary collapse

Methods inherited from Base

#initialize, register_output

Constructor Details

This class inherits a constructor from CoinSync::Outputs::Base

Instance Method Details

#process_transactions(transactions, *args) ⇒ Object 



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# File 'lib/coinsync/outputs/summary.rb', line 16

def process_transactions(transactions, *args)
  totals = Hash.new { BigDecimal(0) }

  transactions.each do |tx|
    break if args.first.to_i > 0 && tx.time.year >= args.first.to_i

    if tx.bought_currency.crypto?
      amount = totals[tx.bought_currency]
      totals[tx.bought_currency] = amount + tx.bought_amount
    end

    if tx.sold_currency.crypto?
      amount = totals[tx.sold_currency]
      if amount >= tx.sold_amount
        totals[tx.sold_currency] = amount - tx.sold_amount
      else
        raise "Summary: couldn't sell #{@formatter.format_crypto(tx.sold_amount)} #{tx.sold_currency.code} " +
          "if only #{@formatter.format_crypto(amount)} was owned"
      end
    end
  end

  rows = totals.map do |currency, amount|
    [
      currency.code,
      @formatter.format_crypto(amount)
    ]
  end

  printer = TablePrinter.new
  printer.print_table(['Coin', 'Amount'], rows, alignment: [:ljust, :rjust])
end

#requires_currency_conversion? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/coinsync/outputs/summary.rb', line 12

def requires_currency_conversion?
  false
end