// SpokesInCircle Example
// Source code file: MainActivity.kt
// Draw a circle with spokes connecting
// its center to its perimeter.
package it372.ssmith.spokesincircle
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.padding
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.foundation.Canvas
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.size
import androidx.compose.material3.CheckboxDefaults.StrokeWidth
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.geometry.Size
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.drawscope.Stroke
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.Dp
import androidx.compose.ui.unit.dp

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

@Composable
fun MainLayout( ) {
    Column(
        modifier = Modifier.padding(20.dp)
            .fillMaxSize( ))
    {

        Canvas(
            modifier = Modifier
                .padding(20.dp)
                .size(300.dp, 300.dp)
                .background(Color(0xFFC0C0C0))
                .fillMaxSize( ))
        {
            drawCircle(color = Color.Black,
                radius = 350f,
                center = Offset(x=360f, y=360f),
                style = Stroke(width = 5f)
            )

            // Draw spokes
            for(index in 0..19) {
                var angle = 2 * index * Math.PI / 20
                drawLine(color = Color.Black,
                    start = Offset(360f, 360f),
                    end = Offset(
                        360f + 350f * Math.cos(angle).toFloat( ),
                        360f + 350f * Math.sin(angle).toFloat( )
                    ),
                    strokeWidth = 5f)
            }
        }
    }
}

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