namespace Caffeine {

public class CaffeineWindow : Budgie.Popover {
    private Gtk.Switch? mode = null;
    private Gtk.SpinButton? timer = null;
    private ulong mode_id;
    private ulong timer_id;

    /**
     * Unowned variables
     */
    private unowned Settings? settings;

    public CaffeineWindow(Gtk.Widget? c_parent, Settings? c_settings) {
        Object(relative_to: c_parent);
        settings = c_settings;
        get_style_context().add_class("caffeine-popover");

        var container = new Gtk.Box(Gtk.Orientation.VERTICAL, 0);

        Gtk.Grid grid = new Gtk.Grid(); // Construct our new grid
        grid.set_row_spacing(6);
        grid.set_column_spacing(12);

        Gtk.Label caffeine_mode_label = new Gtk.Label(_("Caffeine Mode"));
        Gtk.Label timer_label = new Gtk.Label(_("Timer (minutes)"));
        mode = new Gtk.Switch();
        var adjustment = new Gtk.Adjustment(0, 0, 1440, 1, 10, 0);
        timer = new Gtk.SpinButton(adjustment, 0, 0);
        grid.attach(caffeine_mode_label, 0, 0);
        grid.attach(timer_label, 0, 1);
        grid.attach(mode, 1, 0);
        grid.attach(timer, 1, 1);

        container.add(grid);
        add(container);

        update_ux_state(); // Set our initial toggle value

        settings.changed["caffeine-mode"].connect(() => { // On Caffeine Mode schema change
            update_ux_state(); // Update our toggle
        });

        settings.changed["caffeine-mode-timer"].connect(() => { // On Caffeine Mode Timer value change
            SignalHandler.block(timer, timer_id);
            update_ux_state();
            SignalHandler.unblock(timer, timer_id);
        });

        mode_id = mode.notify["active"].connect (() => { // On active change
            SignalHandler.block(mode, mode_id); // Block to prevent update on set_caffeine_mode schema change
            timer.sensitive = mode.active; // Set timer sensitivity
            settings.set_boolean("caffeine-mode", mode.active); // Update our caffeine-mode WM setting
            SignalHandler.unblock(mode, mode_id);
        });

        timer_id = timer.value_changed.connect(update_timer_value);
    }

    /**
     * update_ux_state will set our switch active state to the current Caffeine Mode value and toggle timer
     */
    public void update_ux_state() {
        mode.active = settings.get_boolean("caffeine-mode"); // Set our Caffeine Mode active state
        timer.sensitive = mode.active; // Set timer sensitivity
        timer.value = settings.get_int("caffeine-mode-timer");
    }

    public void toggle_applet() {
        mode.active = !mode.active;
    }

    /**
     * update_timer_value will update our settings timer value based on our SpinButton change
     */
    public void update_timer_value() {
        var time = timer.get_value_as_int();
        settings.set_int("caffeine-mode-timer", time); // Update our caffeine-mode-timer value
    }
}

} // End namespace

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