// SPDX-License-Identifier: GPL-3.0-or-later
// MyIce Kotlin Multiplatform — schedule/convocation viewer
// Copyright (C) 2026  parano.ch
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package ch.parano.myicek

import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.snapshotFlow
import androidx.compose.ui.unit.dp
import androidx.compose.ui.window.Window
import androidx.compose.ui.window.WindowPosition
import androidx.compose.ui.window.application
import androidx.compose.ui.window.rememberWindowState
import ch.parano.myicek.auth.DesktopOAuthClient
import com.russhwolf.settings.Settings
import java.util.prefs.Preferences

fun main() = application {
    val storage = WindowStateStorage(Settings())
    val saved = storage.load()
    val windowState = rememberWindowState(
        width = saved?.width?.dp ?: 1024.dp,
        height = saved?.height?.dp ?: 768.dp,
        position = if (saved != null) WindowPosition(saved.x.dp, saved.y.dp) else WindowPosition(0.dp, 0.dp),
    )

    Window(
        onCloseRequest = ::exitApplication,
        title = "MyIce",
        state = windowState,
    ) {
        LaunchedEffect(Unit) {
            snapshotFlow { windowState.size to windowState.position }
                .collect { (size, position) ->
                    storage.save(
                        width = size.width.value.toInt(),
                        height = size.height.value.toInt(),
                        x = position.x.value.toInt(),
                        y = position.y.value.toInt(),
                    )
                    Preferences.userRoot().flush()
                }
        }
        App(oauthClient = DesktopOAuthClient())
    }
}