package com.example.dwelling

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import com.example.dwelling.ui.theme.DwellingTheme

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()
        setContent {
            DwellingApp()
        }
    }
}

open class Dwelling(val residents: Int) {
    open val buildingMaterial: String = "Generic Material"
    open val capacity: Int = 0

    fun hasRoom(): Boolean {
        return residents < capacity
    }

    open fun description(): String {
        return "This dwelling is made of $buildingMaterial and has space for $capacity."
    }
}

class RoundHut(residents: Int) : Dwelling(residents) {
    override val buildingMaterial: String = "Straw"
    override val capacity: Int = 4

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

    override fun description(): String {
        return "This is a round hut made of $buildingMaterial with space for $capacity people."
    }
}

class SquareCabin(residents: Int) : Dwelling(residents) {
    override val buildingMaterial: String = "Wood"
    override val capacity: Int = 6

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

    override fun description(): String {
        return "This is a square cabin made of $buildingMaterial with space for $capacity people."
    }
}

class RoundTower(residents: Int, val floors: Int) : Dwelling(residents) {
    override val capacity: Int = 4 * floors

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

    override fun description(): String {
        return "This is a round tower made of $buildingMaterial with $floors floors and space for $capacity people."
    }
}

@Composable
fun DwellingApp() {
    val roundHut = RoundHut(3)
    val squareCabin = SquareCabin(5)
    val roundTower = RoundTower(4, 3)

    Column {
        Text(
            text = roundHut.description(),
            style = MaterialTheme.typography.bodyMedium
        )
        Text(
            text = "Floor Area: ${roundHut.floorArea(4.5)}"
        )
        Spacer(modifier = Modifier.height(16.dp))
        Text(
            text = squareCabin.description()
        )
        Text(
            text = "Floor Area: ${squareCabin.floorArea(5.0)}"
        )
        Text(
            text = roundTower.description()
        )
        Text(
            text = "Floor Area: ${roundTower.floorArea(4.0)}"
        )
    }
}