package io.gitlab.jfronny.inceptum.gtk;

import org.gtk.gio.ApplicationFlags;
import org.gtk.glib.GLib;
import org.gtk.gtk.Application;
import io.gitlab.jfronny.inceptum.common.*;
import io.gitlab.jfronny.inceptum.gtk.window.MainWindow;
import io.gitlab.jfronny.inceptum.launcher.LauncherEnv;

import java.io.IOException;
import java.util.*;

public class GtkMain {
    public static final String ID = "io.gitlab.jfronny.inceptum";
    private static final Queue<Runnable> SCHEDULED = new ArrayDeque<>();

    public static void main(String[] args) throws IOException {
        LauncherEnv.initialize(GtkEnvBackend.INSTANCE);
        Utils.LOGGER.info("Launching Inceptum v" + BuildMetadata.VERSION);
        Utils.LOGGER.info("Loading from " + MetaHolder.BASE_PATH);
        //TODO look into java-gtk samples for window architecture
        int statusCode = -1;
        try {
            statusCode = showGui(args);
        } finally {
            LauncherEnv.terminate();
            System.exit(statusCode);
        }
    }

    public static void schedule(Runnable task) {
        SCHEDULED.add(Objects.requireNonNull(task));
    }

    public static int showGui(String[] args) throws IOException {
        var app = new Application(ID, ApplicationFlags.FLAGS_NONE);
        app.onActivate($ -> {
            GtkMenubar.create(app);
            var window = new MainWindow(app);
            window.show();
            GLib.idleAdd(data -> {
                Runnable r;
                while ((r = SCHEDULED.poll()) != null) {
                    try {
                        r.run();
                    } catch (Throwable t) {
                        Utils.LOGGER.error("Could not run scheduled task", t);
                    }
                }
                return true;
            }, null);
            GtkEnvBackend.INSTANCE.dialogParent = window;
            window.onCloseRequest($1 -> {
                GtkEnvBackend.INSTANCE.dialogParent = null;
                app.quit();
                return false;
            });
        });
        return app.run(args.length, args);
    }
}