package com.example.dwellings

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity

open class Dwelling(
    val name: String,
    val capacity: Int
) {
    open fun description(): String {
        return "The $name can accommodate $capacity people."
    }
}

class RoundHut(
    capacity: Int,
    private val radius: Double
) : Dwelling("Round Hut", capacity) {

    fun floorArea(): Double {
        return Math.PI * radius * radius
    }

    override fun description(): String {
        return super.description() + " It has a floor area of ${"%.2f".format(floorArea())} square meters."
    }
}

class SquareCabin(
    capacity: Int,
    private val sideLength: Double
) : Dwelling("Square Cabin", capacity) {

    fun floorArea(): Double {
        return sideLength * sideLength
    }

    override fun description(): String {
        return super.description() + " It has a floor area of ${"%.2f".format(floorArea())} square meters."
    }
}

class RoundTower(
    capacity: Int,
    private val radius: Double,
    private val floors: Int
) : Dwelling("Round Tower", capacity) {

    fun floorArea(): Double {
        return Math.PI * radius * radius * floors
    }

    override fun description(): String {
        return super.description() + " It has $floors floors and a total floor area of ${"%.2f".format(floorArea())} square meters."
    }
}

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val roundHut = RoundHut(4, 5.0)
        val squareCabin = SquareCabin(6, 4.0)
        val roundTower = RoundTower(8, 3.5, 3)

        val dwellings = listOf(roundHut, squareCabin, roundTower)

        dwellings.forEach { dwelling ->
            println(dwelling.description())
        }
    }
}