import androidx.compose.foundation.ExperimentalFoundationApi
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.onClick
import androidx.compose.runtime.LaunchedEffect
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.ExperimentalComposeUiApi
import androidx.compose.ui.Modifier
import androidx.compose.ui.awt.ComposePanel
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.unit.dp
import androidx.compose.ui.window.Popup
import androidx.compose.ui.window.PopupProperties
import java.awt.BorderLayout
import javax.swing.BorderFactory
import javax.swing.JFrame
import javax.swing.JPanel
import javax.swing.SwingUtilities
import kotlinx.coroutines.delay

@OptIn(ExperimentalFoundationApi::class, ExperimentalComposeUiApi::class)
fun main() = SwingUtilities.invokeLater {
    System.setProperty("compose.swing.render.on.graphics", "true")
    System.setProperty("compose.layers.type", "COMPONENT")

    val window = JFrame()
    val composePanel = ComposePanel()
    composePanel.setContent {
        var showPopup by remember { mutableStateOf(false) }
        Box(Modifier
            .size(100.dp)
            .background(Color.Yellow)
            .onClick { showPopup = true }
        )
        if (showPopup) {
            Popup(
                alignment = Alignment.Center,
                properties = PopupProperties(focusable = true),
                onDismissRequest = { showPopup = false }
            ) {
                Box(Modifier.size(200.dp).background(Color.Blue))
            }
        }

        LaunchedEffect(Unit) {
            while (true) {
                println(window.focusOwner)
                delay(1000)
            }
        }
    }
    composePanel.windowContainer = window.layeredPane

    val panel = JPanel().also {
        it.add(composePanel, BorderLayout.CENTER)
        it.border = BorderFactory.createEmptyBorder(100, 100, 100, 100)
    }

    window.contentPane.add(panel, BorderLayout.CENTER)
    window.pack()
    window.isVisible = true
}