WithoutSingleResponsibility.kt

package main.leetcode.kotlin

class Mariott {
    private val basePrice = 2000
    private val tax = 500
    fun getPrice(): Int {
        return basePrice + tax
    }
}
class Taj {
    private val basePrice = 3000
    fun getPrice(): Int {
        return basePrice
    }
}

class PriceFactory {
    fun calculatePrices(hotels : List<Any>) : Int {
        var price = 0
        hotels.forEach {
            price += when (it) {
                is Mariott -> {
                    it.getPrice()
                }
                is Taj -> {
                    it.getPrice()
                }
                else -> {
                    throw RuntimeException("Hotel Not Listed.")
                }
            }
        }
        return  price
    }
}

fun main() {
    print(PriceFactory().calculatePrices(listOf(Mariott(), Taj())))
}