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arturoherrero/checkout-kata

Last active January 25, 2018 11:47
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checkout-kata
#!/usr/bin/env ruby
@products = {
"apples" => 100,
"mele" => 100,
"pommes" => 100,
"bananas" => 150,
"cherries" => 75,
}
@cart = []
def total_price
@cart.reduce(0) { |total, cart_product| total += @products[cart_product] }
end
def count_in_cart(product)
@cart.reduce(0) do |total, cart_product|
total += cart_product == product ? 1 : 0
end
end
def total_discount
discount = @cart.size / 5
discount * 200
end
def discount(product, number_of_items_for_discount, price_discounted)
number_of_product_in_cart = count_in_cart(product)
discounts = number_of_product_in_cart / number_of_items_for_discount
discounts * price_discounted
end
def cherries_discount
discount("cherries", 2, 20)
end
def bananas_discount
discount("bananas", 2, 150)
end
def pommes_discount
discount("pommes", 3, 100)
end
def mele_discount
discount("mele", 2, 50)
end
def apples_discount
kind_of_apple = count_in_cart("apples") + count_in_cart("pommes") + count_in_cart("mele")
discounts = kind_of_apple / 4
discounts * 100
end
def read_input
STDIN.gets.chomp.split(",")
end
while true
@cart << read_input
@cart.flatten!
puts total_price - total_discount - cherries_discount - bananas_discount - pommes_discount - mele_discount - apples_discount
end
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