Class: Rirera

Inherits:
Object
  • Object
show all
Defined in:
lib/rirera.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Rirera

Returns a new instance of Rirera.



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# File 'lib/rirera.rb', line 7

def initialize
  @conf = load_config
end

Instance Attribute Details

#actual ⇒ Object

Returns the value of attribute actual.



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# File 'lib/rirera.rb', line 5

def actual
  @actual
end

#broker ⇒ Object

Returns the value of attribute broker.



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# File 'lib/rirera.rb', line 5

def broker
  @broker
end

#stop ⇒ Object

Returns the value of attribute stop.



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# File 'lib/rirera.rb', line 5

def stop
  @stop
end

#target ⇒ Object

Returns the value of attribute target.



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# File 'lib/rirera.rb', line 5

def target
  @target
end

#volume ⇒ Object

Returns the value of attribute volume.



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# File 'lib/rirera.rb', line 5

def volume
  @volume
end

Instance Method Details

#decorate ⇒ Object 



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# File 'lib/rirera.rb', line 19

def decorate
  12.times do
    print "#"
  end
end

#get_amount ⇒ Object 



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# File 'lib/rirera.rb', line 113

def get_amount
  (@volume/@actual).round
end

#get_break_even ⇒ Object 



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# File 'lib/rirera.rb', line 125

def get_break_even
  ((@volume + get_total_commission) / get_amount).round(2)
end

#get_broker(broker) ⇒ Object 



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# File 'lib/rirera.rb', line 11

def get_broker(broker)
  unless @conf['broker'][broker].nil?
    broker
  else
    abort "Not a valid broker"
  end
end

#get_loss ⇒ Object 



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# File 'lib/rirera.rb', line 121

def get_loss
  ((@volume-(get_amount*@stop)) + get_total_commission).round(2)
end

#get_max_gain ⇒ Object 



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# File 'lib/rirera.rb', line 117

def get_max_gain
  ((get_amount * @target) - @volume - get_total_commission).round(2)
end

#get_rrr ⇒ Object 



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# File 'lib/rirera.rb', line 85

def get_rrr
  chance = @target - @actual
  risk = @actual - @stop
  (chance/risk).round(1)
end

#get_total_commission ⇒ Object 



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# File 'lib/rirera.rb', line 91

def get_total_commission
  # calculate order pricing
  basic_price = @conf['broker'][@broker]['basic_price']
  commission_rate = @conf['broker'][@broker]['commission_rate']
  volume_rate_buy = (get_amount * @actual * commission_rate).round(2)
  volume_rate_sell = (get_amount * @target * commission_rate).round(2)
  total_commission = 0.0

  [volume_rate_buy, volume_rate_sell].each do |vr|
    if (vr + basic_price) > @conf['broker'][@broker]['min_rate']
      if (vr + basic_price) > @conf['broker'][@broker]['max_rate']
        total_commission += @conf['broker'][@broker]['max_rate']
      else
        total_commission += (basic_price + vr)
      end
    else
      total_commission += @conf['broker'][@broker]['min_rate']
    end
  end
  total_commission.round(2)
end

#is_numeric?(s) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rirera.rb', line 81

def is_numeric?(s)
  !!Float(s) rescue false
end

#load_config ⇒ Object 



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# File 'lib/rirera.rb', line 58

def load_config
  YAML.load_file(File.join(File.expand_path("..", File.dirname(__FILE__)),"conf/rirera.yml"))
end

#print_result ⇒ Object 



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# File 'lib/rirera.rb', line 46

def print_result
  print_rrr
  puts ""
  puts ""
  puts "Volume: #{@volume}"
  puts "Amount: #{get_amount}"
  puts "Gain: #{get_max_gain}".green
  puts "Loss: #{get_loss}".red
  puts "Commission: #{get_total_commission}".magenta
  puts "Break Even: #{get_break_even}".blue
end

#print_rrr ⇒ Object 



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# File 'lib/rirera.rb', line 38

def print_rrr
  decorate
  print "\n# RRR: "
  print "#{get_rrr}".yellow
  puts " #"
  decorate
end

#print_title ⇒ Object 



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# File 'lib/rirera.rb', line 25

def print_title
  puts "€$€$€$€$€$€$€$€$€$€$€"
  puts "€ Risk Reward Ratio €"
  puts "€$€$€$€$€$€$€$€$€$€$€"
  puts "|               /    "
  puts "|      _  /\\_  /    "
  puts "|     / \\/   \\/    "
  puts "|  /\\/              "
  puts "|_/                  "
  puts "L___________________ "
  puts ""
end

#sanity_check(num) ⇒ Object 



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# File 'lib/rirera.rb', line 70

def sanity_check(num)
  num.chomp!.gsub!(",",".")
  # only allow int and float
  unless is_numeric?(num)
    puts "Wrong input"
    abort
  else
    num.to_f
  end
end

#stop_loss(actual_price, stop_loss) ⇒ Object 



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# File 'lib/rirera.rb', line 62

def stop_loss(actual_price, stop_loss)
  if stop_loss >= actual_price
    nil
  else
    stop_loss
  end
end