Class: Gtmtech::Crypto::Data

Inherits:
Object
  • Object
show all
Defined in:
lib/gtmtech/crypto/data.rb

Class Method Summary collapse

Class Method Details

.account_exists?(name, currency) ⇒ Boolean 



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# File 'lib/gtmtech/crypto/data.rb', line 43

def self. name, currency
  return false unless @@document[ "accounts" ].key? name
  return false unless @@document[ "accounts" ][ name ][ "currencies" ].include? currency 
  true
end

.add_account(name, currency, type, url) ⇒ Object 



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# File 'lib/gtmtech/crypto/data.rb', line 22

def self. name, currency, type, url
  if @@document[ "accounts" ].key? name
    currencies = @@document[ "accounts" ][ name ][ "currencies" ]
    currencies << currency          
    @@document[ "accounts" ][ name ][ "currencies" ] = currencies.uniq.sort
    @@document[ "accounts" ][ name ][ "type" ]       = type if type
    @@document[ "accounts" ][ name ][ "url" ]        = url if url
  else
    @@document[ "accounts" ][ name ] = { "currencies" => [ currency ], "type" => type, "url" => url }
  end
end

.add_transaction(date, source_account, source_currency, source_amount, dest_account, dest_currency, dest_amount, fees_account, fees_currency, fees_amount) ⇒ Object 



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# File 'lib/gtmtech/crypto/data.rb', line 49

def self.add_transaction date, , source_currency, source_amount, , dest_currency, dest_amount, , fees_currency, fees_amount
  if date.downcase == "now"
    date = Time.now.to_s.split(" ").take(2).join(",")
  end

  source_amount = Utils.make_decimal source_amount
  dest_amount = Utils.make_decimal dest_amount

  id = SecureRandom.uuid.to_s
  @@document[ "transactions" ][ id ] = { "date"            => date, 
                                         "source_account"  => ,
                                         "source_currency" => source_currency,
                                         "source_amount"   => source_amount,
                                         "dest_account"    => ,
                                         "dest_currency"   => dest_currency,
                                         "dest_amount"     => dest_amount,
                                         "fees_account"    => ,
                                         "fees_currency"   => fees_currency,
                                         "fees_amount"     => fees_amount }
end

.delete_transaction(id) ⇒ Object 



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# File 'lib/gtmtech/crypto/data.rb', line 87

def self.delete_transaction id
  @@document[ "transactions" ].delete( id )        
end

.list_accounts ⇒ Object 



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# File 'lib/gtmtech/crypto/data.rb', line 34

def self.list_accounts
  puts "Accounts for profile \"#{ENV['CRYPTO_PROFILE'] || 'main'}\":"
  printf("%-10s %-10s %-60s\n", "name", "type", "currencies")
  puts "-" * 80
  @@document[ "accounts" ].each do |name, |
    printf("%-10s %-10s %-60s\n", name, [ "type" ], [ "currencies" ].join(","))
  end
end

.list_transactions ⇒ Object 



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# File 'lib/gtmtech/crypto/data.rb', line 70

def self.list_transactions
  puts "Transactions for profile \"#{ENV['CRYPTO_PROFILE'] || 'main'}\":"
  printf("%-36s %-20s %-15s %-15s %-15s %-15s %-30s\n", "id", "date", "src account", "src amount", "dest account", "dest amount", "ratio src/dest")
  puts "-" * 150
  @@document[ "transactions" ].each do |id, txn|
    ratio = ""
    if txn["source_currency"] != txn["dest_currency"]
      ratio = Utils.decimal_divide( txn["source_amount"], txn["dest_amount"] )
    end
    printf("%-36s %-20s %-15s %-15s %-15s %-15s %-30s\n", id, txn["date"], "#{txn["source_account"]}.#{txn["source_currency"]}", txn["source_amount"], "#{txn["dest_account"]}.#{txn["dest_currency"]}", txn["dest_amount"], ratio)
    ratio = ""
    if txn["fees_account"]
      printf("%-36s %-20s %-15s %-15s %-15s %-15s %-30s\n", id, txn["date"], "#{txn["fees_account"]}.#{txn["fees_currency"]}", txn["fees_amount"], "fees.#{txn["fees_currency"]}", txn["fees_amount"], ratio)
    end
  end
end

.load ⇒ Object 



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# File 'lib/gtmtech/crypto/data.rb', line 8

def self.load
  if ENV['CRYPTO_PROFILE']
    @@path = "#{ENV['HOME']}/.crypto.#{ENV['CRYPTO_PROFILE']}.yaml"
  else
    @@path = "#{ENV['HOME']}/.crypto.yaml"
  end
  unless File.exist? @@path
    File.open(@@path, 'w') do |file| 
      file.write("---\naccounts: {}\ntransactions: {}\n")
    end
  end
  @@document = YAML.load(File.read(@@path))
end

.reconcile_transactions(conversions) ⇒ Object 



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# File 'lib/gtmtech/crypto/data.rb', line 91

def self.reconcile_transactions conversions
  self.list_transactions
  puts ""
  printf("%-20s %-10s %-20s %-30s\n", "account", "currency", "amount", "GBP equivalent")
  puts "-" * 120
  fees = {}
  currencies = {}
  @@document[ "accounts" ].each do | name,  |
    [ "currencies" ].sort.each do | currency |
      decimal = "0.0"
      @@document[ "transactions" ].each do |id, txn|
        # explicit fees
        if txn[ "fees_account" ] == name and txn[ "fees_currency" ] == currency
          decimal = Utils.decimal_minus( decimal, txn[ "fees_amount" ] )
          unless fees.key? currency
            fees[ currency ] = "0.0"
          end
          fees[ currency ] = Utils.decimal_add( fees[ currency ], txn[ "fees_amount" ])
        end

        # account reconciliation
        if txn[ "source_account" ] == name and txn[ "source_currency" ] == currency
          decimal = Utils.decimal_minus( decimal, txn[ "source_amount" ] )

          # implicit fees
          if txn[ "source_currency" ] == txn[ "dest_currency" ] and txn[ "source_amount" ] != txn[ "dest_amount" ]
            implicit_fees = Utils.decimal_minus( txn[ "source_amount" ], txn[ "dest_amount" ] )
            unless fees.key? currency
              fees[ currency ] = "0.0"
            end
            fees[ currency ] = Utils.decimal_add( fees[ currency ], implicit_fees )
          end

        end
        if txn[ "dest_account" ] == name and txn[ "dest_currency" ] == currency
          decimal = Utils.decimal_add( decimal, txn[ "dest_amount" ] )
        end
      end
      unless currencies.key? currency
        currencies[ currency ] = "0.0"
      end
      currencies[ currency ] = Utils.decimal_add( currencies[ currency ], decimal )
      gbp_equiv = "?"
      gbp_equiv = Utils.decimal_multiply( decimal, conversions[ currency ] ) if conversions.key? currency
      printf( "%-20s %-10s %-20s %-30s\n", name, currency, decimal, gbp_equiv )
    end
  end
  fees.keys.sort.each do |currency|
    unless currencies.key? currency
      currencies[ currency ] = "0.0"
    end
    gbp_equiv = "?"
    gbp_equiv = Utils.decimal_multiply( fees[ currency ], conversions[ currency ] ) if conversions.key? currency
    printf( "%-20s %-10s %-20s %-30s\n", "**FEES**", currency, fees[ currency ], gbp_equiv)
  end

  puts ""
  printf( "%-10s %-20s\n", "currency", "reconciliation" )
  puts "-" * 120
  currencies.keys.sort.each do |currency|
    currency_fees = fees[ currency ] || "0.0"
    printf( "%-10s %-20s\n", currency, Utils.decimal_add( currencies[ currency ], currency_fees ) )
  end

  gbp_total = "0.0"
  gbp_known = true
  puts ""
  printf( "%-10s %-20s %-20s\n", "currency", "totals", "GBP equivalent" )
  puts "-" * 120
  currencies.keys.sort.each do |currency|
    amount = currencies[ currency ]
    if conversions.key? currency
      gbp_equiv = Utils.decimal_multiply( amount, conversions[ currency ] )
      printf( "%-10s %-20s %-20s\n", currency, currencies[ currency ], gbp_equiv )
      gbp_total = Utils.decimal_add( gbp_total, gbp_equiv )
    else
      printf( "%-10s %-20s %-20s\n", currency, currencies[ currency ], "?" )
      gbp_known = false
    end
  end

  puts ""
  if gbp_known
    puts "GBP profit/loss (equivalent): #{gbp_total}"
  else
    puts "GBP profit/loss (equivalent): unknown - specify conversions on command-line"
  end
end

.save ⇒ Object 



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# File 'lib/gtmtech/crypto/data.rb', line 180

def self.save
  File.open(@@path, 'w') do |file|
    file.write( @@document.to_yaml )
  end
end