package io.gitlab.jfronny.inceptum.gtk;

import ch.bailu.gtk.GTK;
import ch.bailu.gtk.gtk.*;
import ch.bailu.gtk.type.Str;
import io.gitlab.jfronny.commons.StringFormatter;
import io.gitlab.jfronny.inceptum.common.Utils;
import io.gitlab.jfronny.inceptum.gtk.util.I18n;
import io.gitlab.jfronny.inceptum.launcher.LauncherEnv;
import io.gitlab.jfronny.inceptum.launcher.api.account.MicrosoftAccount;
import org.jetbrains.annotations.Nullable;

import java.util.function.Consumer;

public enum GtkEnvBackend implements LauncherEnv.EnvBackend { //TODO test
    INSTANCE;

    public Window dialogParent = null;

    @Override
    public void showError(String message, String title) {
        Utils.LOGGER.error(message);
        simpleDialog(message, title, MessageType.ERROR, ButtonsType.CLOSE, null, null);
    }

    @Override
    public void showError(String message, Throwable t) {
        simpleDialog(StringFormatter.toString(t), message, MessageType.ERROR, ButtonsType.CLOSE, null, null);
    }

    @Override
    public void showInfo(String message, String title) {
        Utils.LOGGER.info(message);
        simpleDialog(message, title, MessageType.INFO, ButtonsType.CLOSE, null, null);
    }

    @Override
    public void showOkCancel(String message, String title, Runnable ok, Runnable cancel, boolean defaultCancel) {
        Utils.LOGGER.info(message);
        simpleDialog(message, title, MessageType.QUESTION, ButtonsType.OK_CANCEL, ok, cancel);
    }

    @Override
    public void getInput(String prompt, String details, String defaultValue, Consumer<String> ok, Runnable cancel) {
        //TODO spacing
        //TODO run on main thread
        GtkMain.schedule(() -> {
            Dialog dialog = new Dialog();
            if (dialogParent != null) dialog.setTransientFor(dialogParent);
            dialog.setModal(GTK.TRUE);
            if (dialogParent != null) dialog.setDestroyWithParent(GTK.TRUE);
            dialog.setTitle(new Str(prompt));
            Box box = dialog.getContentArea();
            box.append(new Label(new Str(details)));
            Entry entry = new Entry();
            Editable entryEditable = new Editable(entry.cast());
            entryEditable.setText(new Str(defaultValue));
            box.append(entry);
            dialog.addButton(I18n.str("ok"), ResponseType.OK);
            dialog.addButton(I18n.str("cancel"), ResponseType.CANCEL);
            dialog.onResponse(processResponses(dialog, () -> ok.accept(entryEditable.getText().toString()), cancel));
            dialog.show();
        });
    }

    @Override
    public void showLoginRefreshPrompt(MicrosoftAccount account) {
        //TODO
    }

    private void simpleDialog(String markup, String title, int type, int buttons, Runnable ok, Runnable cancel) {
        GtkMain.schedule(() -> {
            MessageDialog dialog = new MessageDialog(dialogParent, DialogFlags.MODAL | DialogFlags.DESTROY_WITH_PARENT, type, buttons, null);
            dialog.setTitle(new Str(title));
            dialog.setMarkup(new Str(markup));
            dialog.onResponse(processResponses(dialog, ok, cancel));
            dialog.show();
        });
    }

    private Dialog.OnResponse processResponses(Dialog dialog, @Nullable Runnable ok, @Nullable Runnable cancel) {
        return response_id -> {
            switch (response_id) {
                case ResponseType.OK -> {
                    dialog.close();
                    if (ok != null) ok.run();
                }
                case ResponseType.CLOSE, ResponseType.CANCEL -> {
                    dialog.close();
                    if (cancel != null) cancel.run();
                }
                case ResponseType.DELETE_EVENT -> dialog.destroy();
                default -> Utils.LOGGER.error("Unexpected response type: " + response_id);
            }
        };
    }
}