Class: OrderOptimizer::Order

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(required_qty:) ⇒ Order

Returns a new instance of Order.



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# File 'lib/order_optimizer/order.rb', line 5

def initialize(required_qty:)
  @quantity     = 0
  @required_qty = required_qty
  @total        = 0
  @skus         = {}
end

Instance Attribute Details

#quantity ⇒ Object (readonly)

Returns the value of attribute quantity.



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# File 'lib/order_optimizer/order.rb', line 3

def quantity
  @quantity
end

#skus ⇒ Object (readonly)

Returns the value of attribute skus.



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# File 'lib/order_optimizer/order.rb', line 3

def skus
  @skus
end

#total ⇒ Object (readonly)

Returns the value of attribute total.



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# File 'lib/order_optimizer/order.rb', line 3

def total
  @total
end

Instance Method Details

#add(sku, count: 1) ⇒ Object 



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# File 'lib/order_optimizer/order.rb', line 12

def add(sku, count: 1)
  @quantity += count * sku.quantity
  @total    += count * sku.price_per_sku
  @skus = skus.merge(sku.id => count) { |_identifier, current, plus| current + plus }
  self
end

#complete? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/order_optimizer/order.rb', line 23

def complete?
  missing_qty.zero?
end

#exact? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/order_optimizer/order.rb', line 27

def exact?
  @required_qty == quantity
end

#missing_qty ⇒ Object 



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# File 'lib/order_optimizer/order.rb', line 19

def missing_qty
  [@required_qty - quantity, 0].max
end