unhappychoice/bitflyer-cli

require 'bitflyer/cli/has_http_client'
require 'bitflyer/cli/model/position'

class StopByRangeCommand
  include HasHTTPClient

  def run(options)
    position = Position.new(http_private_client.positions)
    return puts "You don't have any position now." if position.size == 0

    side = position.average > 0 ? 'SELL' : 'BUY'
    price = position.average.abs + options.range * (side == 'BUY' ? 1.0 : -1.0)

    response = http_private_client.send_parent_order(
        order_method: 'SIMPLE',
        parameters: [{
            product_code: 'FX_BTC_JPY',
            condition_type: 'STOP',
            side: side,
            trigger_price: price,
            size: position.size.to_f
        }]
    )

    if response['parent_order_acceptance_id'].nil?
      puts 'An error has occurred' + response.to_s
    else
      puts "Set limit order #{side} / #{price} / #{position.size.to_f}"
    end
  end
end