Class: Mastercoin::ExodusPayment

Inherits:
Object
  • Object
show all
Defined in:
lib/mastercoin-ruby/exodus_payment.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#address ⇒ Object

Returns the value of attribute address.



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 4

def address
  @address
end

#bonus_bought ⇒ Object

Returns the value of attribute bonus_bought.



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 4

def bonus_bought
  @bonus_bought
end

#coins_bought ⇒ Object

Returns the value of attribute coins_bought.



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 4

def coins_bought
  @coins_bought
end

#time_included ⇒ Object

Returns the value of attribute time_included.



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 4

def time_included
  @time_included
end

#tx ⇒ Object

Returns the value of attribute tx.



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 4

def tx
  @tx
end

Class Method Details

.from_address(address) ⇒ Object

This is a very slow and probably very inefficient way to calculate the coins bought TODO: Please rewrite



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 64

def self.from_address(address)
  buying = ExodusPayment.new
  @used = {}
  @rejected_tx = []

  buying.address = address

  buying.coins_bought = 0
  buying.bonus_bought = 0

  store = Mastercoin.storage
  txouts = store.get_txouts_for_address(address)

  # 1. Get all outputs for an address
  # 2. Check to see if this ouput has a next input for the Exodus address
  #    A. Get the tx for the next input if any exist
  #    B. Check if the tx has any outputs with the Exodus address
  # 3. If so find which input did the total best payments to Exodus
  # 4. Check the inputs for Exodus output and award the one with the highest total

  txouts.each do |txout|
    Mastercoin.log.debug("Checking txout: #{txout.to_hash(with_address: true)}")
    input = txout.get_next_in

    if input
      tx = input.get_tx
      next if @rejected_tx.include?(tx.hash)

      block_time = store.get_block_by_tx(tx.hash).time

      if tx.get_block.depth > Mastercoin::END_BLOCK
        Mastercoin.log.debug("Transaction after end date: Rejecting")
        @rejected_tx << tx.hash
        next
      end

      addresses = tx.outputs.collect{|x| x.to_hash(with_address: true)["address"] }

      unless addresses.include?(Mastercoin::EXODUS_ADDRESS)
        Mastercoin.log.debug("TX #{tx.hash} does not include transaction to Exodus")
        @rejected_tx << tx.hash
        next
      else
        Mastercoin.log.debug("TX #{tx.hash} is a transaction to Exodus")
      end

      highest_input = ExodusPayment.highest_output_for_tx(tx)

      Mastercoin.log.debug("Highest input for #{tx.hash} is #{highest_input}")

      # Get all the inputs from this transaction and see which has the higest one. the Funds belong to the input with the highest value
      tx.out.each do |output|
        if output.get_addresses.flatten.include?(Mastercoin::EXODUS_ADDRESS) && !@used.keys.include?(tx.hash)
          Mastercoin.log.debug("TX #{tx.hash} is not inside our used tx hash: #{@used.keys}")

          unless txout.get_address == highest_input
            Mastercoin.log.debug("This is not the highest input; can't give the coins. #{txout.get_address} we needed #{highest_input}")
            next
          else
          end

          @used[tx.hash] = highest_input

          btc_amount = (output.value / 1e8)
          bought = btc_amount * 100
          buying.coins_bought += bought
          date_difference = (Mastercoin::END_TIME.to_i - block_time.to_i) / 60.0 / 60 / 24 / 7
          if date_difference > 0
            bonus = (btc_amount * 100 * (date_difference * 0.1))

            buying.bonus_bought += sprintf("%0.08f", bonus).to_f
          end
        else
          Mastercoin.log.debug("This is not the Exodus output; probably change address")
        end
      end
    end
  end
  return buying
end

.from_transaction(hash) ⇒ Object

Raises:



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 18

def self.from_transaction(hash) 
  buying = ExodusPayment.new
  buying.coins_bought = 0
  buying.bonus_bought = 0

  store = Mastercoin.storage
  tx = store.get_tx(hash)
  raise TransactionNotFoundException.new("Could not find the given transaction with #{hash}. Perhaps your blockchain is not up-to-date?") unless tx
  buying.tx = tx
  block_time = store.get_block_by_tx(tx.hash).time
  buying.time_included = block_time
  highest = ExodusPayment.highest_output_for_tx(tx)
  buying.address = highest

  exodus_output = tx.outputs.find{|x| x.to_hash(with_address:true)["address"] == Mastercoin::EXODUS_ADDRESS}

  if tx.get_block.depth <= Mastercoin::END_BLOCK
    btc_amount = (exodus_output.value / 1e8)
    bought =  btc_amount * 100
    buying.coins_bought += bought
    date_difference = (Mastercoin::END_TIME.to_i - block_time.to_i) / 60.0 / 60 / 24 / 7
    if date_difference > 0
      bonus = (btc_amount * 100 * (date_difference * 0.1))

      buying.bonus_bought += sprintf("%0.08f", bonus).to_f
    end
  end
  return buying
end

.highest_output_for_tx(tx) ⇒ Object 



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 48

def self.highest_output_for_tx(tx)
  result = {}
  output_hash = tx.in.collect{|x| x.get_prev_out.to_hash(with_address: true) }

  output_hash.each do |output|
    address = output['address']
    result[address] ||= 0
    result[address] += output['value'].to_f
  end

  highest_input = result.sort{|x,y| y[1] <=> x[1]}
  highest_input = highest_input[0][0]
end

Instance Method Details

#to_json ⇒ Object 



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 10

def to_json
  {coins_bought: self.coins_bought, bonus_bought: self.bonus_bought}.to_json
end

#to_s ⇒ Object 



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 6

def to_s
  "Bought #{self.coins_bought} Mastercoins and got a #{self.bonus_bought} Mastercoins extra."
end

#total_amount ⇒ Object 



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# File 'lib/mastercoin-ruby/exodus_payment.rb', line 14

def total_amount
  self.coins_bought + self.bonus_bought
end