/*
 * Copyright (c) 2020-2022, the SerenityOS developers.
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include "DesktopSettingsWidget.h"
#include <Applications/DisplaySettings/DesktopSettingsGML.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/ConnectionToWindowServer.h>
#include <LibGUI/Desktop.h>
#include <LibGUI/Label.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/SpinBox.h>

namespace DisplaySettings {

ErrorOr<NonnullRefPtr<DesktopSettingsWidget>> DesktopSettingsWidget::try_create()
{
    auto desktop_settings_widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) DesktopSettingsWidget()));
    TRY(desktop_settings_widget->create_frame());
    desktop_settings_widget->load_current_settings();
    return desktop_settings_widget;
}

ErrorOr<void> DesktopSettingsWidget::create_frame()
{
    TRY(load_from_gml(desktop_settings_gml));

    m_workspace_rows_spinbox = *find_descendant_of_type_named<GUI::SpinBox>("workspace_rows_spinbox");
    m_workspace_rows_spinbox->on_change = [&](auto) {
        set_modified(true);
    };
    m_workspace_columns_spinbox = *find_descendant_of_type_named<GUI::SpinBox>("workspace_columns_spinbox");
    m_workspace_columns_spinbox->on_change = [&](auto) {
        set_modified(true);
    };

    auto& keyboard_shortcuts_label = *find_descendant_of_type_named<GUI::Label>("keyboard_shortcuts_label");
    keyboard_shortcuts_label.set_text("\xE2\x84\xB9\tCtrl+Alt+{Shift}+Arrows moves between workspaces"_string);

    return {};
}

void DesktopSettingsWidget::load_current_settings()
{
    auto& desktop = GUI::Desktop::the();
    m_workspace_rows_spinbox->set_value(desktop.workspace_rows(), GUI::AllowCallback::No);
    m_workspace_columns_spinbox->set_value(desktop.workspace_columns(), GUI::AllowCallback::No);
}

void DesktopSettingsWidget::apply_settings()
{
    auto workspace_rows = (unsigned)m_workspace_rows_spinbox->value();
    auto workspace_columns = (unsigned)m_workspace_columns_spinbox->value();
    auto& desktop = GUI::Desktop::the();
    if (workspace_rows != desktop.workspace_rows() || workspace_columns != desktop.workspace_columns()) {
        if (!GUI::ConnectionToWindowServer::the().apply_workspace_settings(workspace_rows, workspace_columns, true)) {
            GUI::MessageBox::show_error(window(), "Error applying workspace settings"sv);
        }
    }
}

}