Created
November 11, 2022 10:31
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package vendingmachine | |
class VendingMachine { | |
var chocolateBar = 0 | |
var granolaBar = 0 | |
var totalMoney = 0.0 | |
def buy(product: String, money: Double): String = { | |
if (!isProductAvailable(product)) { | |
s"Sorry, product $product not available" | |
} else if(isMoneyEnough(product, money)) { | |
"Not enough money" | |
} else completeRequest(product, money) | |
} | |
def isProductAvailable(product: String): Boolean = { | |
val productQuantity = { | |
if (product == "chocolate") chocolateBar | |
else if (product == "granola") granolaBar | |
else 0 | |
} | |
productQuantity > 0 | |
} | |
def isMoneyEnough(product: String, money: Double): Boolean = { | |
val cost = if (product == "chocolate") 1.5 else 1 | |
money >= cost | |
} | |
def completeRequest(product: String, | |
money: Double): String = { | |
if (product == "chocolate") chocolateBar-=1 else granolaBar-=1 | |
totalMoney += money | |
s"Enjoy your $product" | |
} | |
} |
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