package com.example.tipcalculatorkt

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.layout.Arrangement
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.Button
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Text
import androidx.compose.material3.TextField
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import androidx.compose.ui.unit.times
import com.example.tipcalculatorkt.ui.theme.TipCalculatorktTheme
import kotlin.time.times

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()
        setContent {
            TipCalculatorktTheme {
               calc()
            }
        }
    }
}
@Composable
fun calc(){
    var totalbill by remember{
        mutableStateOf("0")
    }
    var tipp by remember {
        mutableStateOf("0")
    }
    var ans by remember {
        mutableStateOf("0.0")
    }
    Column (modifier = Modifier.fillMaxSize().padding(16.dp),
            horizontalAlignment = Alignment.CenterHorizontally,
            verticalArrangement = Arrangement.Center){
        TextField(value = totalbill, onValueChange = {totalbill =it},
            label = {Text(text = "Enter the total bill amount")})
        TextField(value = tipp, onValueChange = {tipp =it},
            label = {Text(text = "Enter the tip percentage")})
        Spacer(modifier = Modifier.height(16.dp))
        Button(onClick = {var bill = totalbill.toDouble()
                            var tip = tipp.toDouble()
                            ans = (bill*(tip/100)).toString()
               }){
            Text(text="Calculate the tip")
        }
        if(ans=="0.0"){
            Text(text="Tip amount is $ans", fontSize = 30.sp)
        }
        else{
            Text(text = "Tip amount is $ans",fontSize = 20.sp)
        }
    }
}