class CoinSync::CryptoClassifier
Constants
- MAX_INDEX
Public Class Methods
new(config)
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# File lib/coinsync/crypto_classifier.rb, line 7 def initialize(config) @config = config @base_currencies = config.base_cryptocurrencies.map { |c| CryptoCurrency.new(c) } end
Public Instance Methods
is_purchase?(transaction)
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# File lib/coinsync/crypto_classifier.rb, line 12 def is_purchase?(transaction) bought_index = @base_currencies.index(transaction.bought_currency) || MAX_INDEX sold_index = @base_currencies.index(transaction.sold_currency) || MAX_INDEX if bought_index < sold_index false elsif bought_index > sold_index true else raise "Couldn't determine which cryptocurrency is the base one: #{transaction.bought_currency.code} vs " + "#{transaction.sold_currency.code}. Use the `base_cryptocurrencies` setting to explicitly choose " + "base cryptocurrencies." end end