module Calculate

# File lib/arithmetic/arithmetic.rb, line 28
def * (value)
  (@amount * value_exist(value))
end

# File lib/arithmetic/arithmetic.rb, line 20
def + (value)
  @amount + conv_euro(value)
end

# File lib/arithmetic/arithmetic.rb, line 24
def - (value)
  @amount - conv_euro(value)
end

# File lib/arithmetic/arithmetic.rb, line 32
def / (value)
  (@amount / value_exist(value))
end

# File lib/arithmetic/arithmetic.rb, line 40
def < (value)
  (@amount < value_exist(value))
end

# File lib/arithmetic/arithmetic.rb, line 44
def == (value)
  (@amount == value_exist(value))
end

# File lib/arithmetic/arithmetic.rb, line 36
def > (value)
  (@amount > value_exist(value))
end

# File lib/arithmetic/arithmetic.rb, line 9
def conv_euro(value)
  case value.currency
  when 'EUR'
    value * 1
  when 'USD'
    value * 1.1
  when 'Bitcoin'
    value * 0.0047
  end
end

# File lib/arithmetic/arithmetic.rb, line 5
def value_exist(value)
  (value.respond_to?(:to_i) ? value : value.amount)
end