// ThreeButtons Example
// Source code file: MainActivity.kt
// Define a MyButton composable to represent three
// Button elements with different text and onClick
// parameters.

package it372.ssmith.threetexts
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.Button
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import it372.ssmith.threetexts.ui.theme.ThreeTextsTheme

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

@Composable
fun MainLayout( ) {

    val textOutput = remember { mutableStateOf("") }

    Column(modifier = Modifier
        .padding(all = 50.dp)) {

        // Button A
        MyButton(caption = "Button A", clickListener = {
            textOutput.value = "Button A Clicked"
        })

        // Button B
        MyButton(caption = "Button B", clickListener = {
            textOutput.value = "Button B Clicked"
        })

        // Button C
        MyButton(caption = "Button C", clickListener = {
            textOutput.value = "Button C Clicked"
        })

        Text(text = textOutput.value, fontSize = 25.sp)
    }
}

@Composable
fun MyButton(caption : String,
    clickListener : ( ) -> Unit) {
    Button(clickListener,
        modifier = Modifier.padding(bottom = 30.dp)) {

            Text(text = caption, fontSize = 25.sp, color = Color.Red,
                modifier = Modifier.background(Color.White))
    }
}

@Preview(showBackground = true)
@Composable
fun MainLayoutPreview() {
    MainLayout( )
}