Class: Money

Inherits:
Config show all
Defined in:
lib/money.rb

Constant Summary collapse

@@configure = 
[	Config.new("EUR", { 'USD' => 1.11, 'Bitcoin' => 0.0047 } ),
Config.new("USD", { 'EUR' => (1/1.11), 'Bitcoin' => (0.0047/1.11) } ),
Config.new("Bitcoin", { 'USD' => (1.11/0.0047), 'EUR' => (1/0.0047) } )]

Instance Attribute Summary collapse

Attributes inherited from Config

#conversions, #default_currency

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(value, name) ⇒ Money 



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# File 'lib/money.rb', line 15

def initialize(value, name)
	if value.is_a? Numeric
		@amount = value 
	else
		raise "No es posible instanciar el objeto, #{value} es un #{value.class}, 
			debe ser un numero Ej: 50 , 5.05"
	end
	if name.is_a? String
		@@configure.each do |config| 
			next unless config.default_currency == name
			@currency = name 
			return
		end
		raise "El parametro #{name} no se encuentra en la configuracion"
	else
		raise "No es posible instanciar el objeto, #{name} es un #{name.class}, 
			debe ser un string Ej: \"EUR\" , \"USD\", \"Bitcoin\""
	end
end

Instance Attribute Details

#amount ⇒ Object (readonly)

Returns the value of attribute amount.



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# File 'lib/money.rb', line 10

def amount
  @amount
end

#currency ⇒ Object (readonly)

Returns the value of attribute currency.



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# File 'lib/money.rb', line 10

def currency
  @currency
end

Class Method Details

.configure ⇒ Object 



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# File 'lib/money.rb', line 120

def self.configure
	@@configure
end

Instance Method Details

#*(x) ⇒ Object 



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# File 'lib/money.rb', line 86

def *(x)
	return "#{@amount * x} #{@currency}"
end

#+(x) ⇒ Object 



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# File 'lib/money.rb', line 56

def +(x)
	unless x.currency == @currency
		@@configure.each do |config| 
			if config.default_currency == x.currency
				aux = ( (@amount + config.conversions[@currency] * x.amount) * 100).round/100.0
				return "#{aux} #{@currency}"	
			end
		end
	end
	aux = ((@amount + x.amount) * 100).round/100.0
	return "#{aux} #{@currency}" 
end

#-(x) ⇒ Object 



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# File 'lib/money.rb', line 69

def -(x)
	unless x.currency == @currency
		@@configure.each do |config| 
			if config.default_currency == x.currency	
				aux = ((@amount - config.conversions[@currency] * x.amount) * 100).round/100.0
				return "#{aux} #{@currency}"  
			end
		end
	end
	aux = ((@amount - x.amount) * 100).round/100.0
	return "#{aux} #{@currency}"
end

#/(x) ⇒ Object 



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# File 'lib/money.rb', line 82

def /(x)
	return "#{@amount / x} #{@currency}"
end

#<(x) ⇒ Object 



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# File 'lib/money.rb', line 110

def <(x)
	if not x.currency == @currency
		@@configure.each do |config| 
			return ( config.default_currency == x.currency and @amount < (x.amount * config.conversions[@currency]) )
		end
	end
	return ( @amount < x.amount )
	
end

#==(x) ⇒ Object 



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# File 'lib/money.rb', line 90

def ==(x)
	if not x.currency == @currency
		@@configure.each do |config| 
			return ( config.default_currency == x.currency and @amount == (x.amount * config.conversions[@currency]) )
		end
	end
	return ( x.amount == @amount )
	
end

#>(x) ⇒ Object 



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# File 'lib/money.rb', line 100

def >(x)
	if not x.currency == @currency
		@@configure.each do |config| 
			return ( config.default_currency == x.currency and @amount > (x.amount * config.conversions[@currency]) )
		end
	end
	return ( @amount > x.amount )
	
end

#convert_to(name) ⇒ Object 



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# File 'lib/money.rb', line 39

def convert_to(name)
	if name.is_a? String
		@@configure.each do |config| 
			next unless config.default_currency == currency

			@amount = (config.conversions[name] * @amount *100).round/100.0
			@currency = name 

			return self
		end
		raise "El parametro #{name} no se encuentra en la configuracion"
	else
		raise "No es posible realizar la conversion  de #{@currency} a #{name} este no se encuentra en la configuracion
			Ej: \"EUR\" , \"USD\", \"Bitcoin\""
	end
end

#inspect ⇒ Object 



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# File 'lib/money.rb', line 35

def inspect
	"#{@amount} #{@currency}"
end