/*
 *  The ManaPlus Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *  Copyright (C) 2011-2019  The ManaPlus Developers
 *
 *  This file is part of The ManaPlus Client.
 *
 *  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 2 of the License, or
 *  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 <http://www.gnu.org/licenses/>.
 */

#include "gui/windows/worldselectdialog.h"

#include "client.h"
#include "settings.h"

#include "gui/widgets/button.h"
#include "gui/widgets/createwidget.h"
#include "gui/widgets/layout.h"
#include "gui/widgets/listbox.h"
#include "gui/widgets/scrollarea.h"

#include "gui/models/worldlistmodel.h"

#include "net/loginhandler.h"

#include "utils/delete2.h"
#include "utils/gettext.h"

#include "debug.h"

extern WorldInfo **server_info;

WorldSelectDialog::WorldSelectDialog(const Worlds &worlds) :
    // TRANSLATORS: world select dialog name
    Window(_("Select World"), Modal_false, nullptr, "world.xml"),
    ActionListener(),
    KeyListener(),
    mWorldListModel(new WorldListModel(worlds)),
    mWorldList(CREATEWIDGETR(ListBox, this, mWorldListModel, "")),
    // TRANSLATORS: world dialog button
    mChangeLoginButton(new Button(this, _("Change Login"), "login",
        BUTTON_SKIN, this)),
    // TRANSLATORS: world dialog button
    mChooseWorld(new Button(this, _("Choose World"), "world",
        BUTTON_SKIN, this))
{
    ScrollArea *const worldsScroll = new ScrollArea(this, mWorldList,
        fromBool(getOptionBool("showbackground", false), Opaque),
         "world_background.xml");

    worldsScroll->setHorizontalScrollPolicy(ScrollArea::SHOW_NEVER);

    place(0, 0, worldsScroll, 3, 5).setPadding(2);
    place(1, 5, mChangeLoginButton, 1, 1);
    place(2, 5, mChooseWorld, 1, 1);

    // Make sure the list has enough height
    getLayout().setRowHeight(0, 60);

    reflowLayout(0, 0);

    if (worlds.empty())
    {
        // Disable Ok button
        mChooseWorld->setEnabled(false);
    }
    else
    {
        // Select first server
        mWorldList->setSelected(0);
    }

    addKeyListener(this);

    center();
}

void WorldSelectDialog::postInit()
{
    Window::postInit();
    setVisible(Visible_true);
    mChooseWorld->requestFocus();
}

WorldSelectDialog::~WorldSelectDialog()
{
    delete2(mWorldListModel)
}

void WorldSelectDialog::action(const ActionEvent &event)
{
    const std::string &eventId = event.getId();
    if (eventId == "world")
    {
        mChangeLoginButton->setEnabled(false);
        mChooseWorld->setEnabled(false);
        loginHandler->chooseServer(mWorldList->getSelected(),
            settings.persistentIp);

        // Check in case netcode moves us forward
        if (client->getState() == State::WORLD_SELECT)
            client->setState(State::WORLD_SELECT_ATTEMPT);
    }
    else if (eventId == "login")
    {
        client->setState(State::SWITCH_LOGIN);
    }
}

void WorldSelectDialog::keyPressed(KeyEvent &event)
{
    const InputActionT actionId = event.getActionId();

    if (actionId == InputAction::GUI_CANCEL)
    {
        action(ActionEvent(nullptr,
            mChangeLoginButton->getActionEventId()));
    }
    else if (actionId == InputAction::GUI_SELECT ||
             actionId == InputAction::GUI_SELECT2)
    {
        action(ActionEvent(nullptr, mChooseWorld->getActionEventId()));
    }

    if (actionId == InputAction::GUI_UP) {
        event.consume();
        
        if (mWorldList->getSelected() > 0) {
            mWorldList->setSelected(mWorldList->getSelected() - 1);
        }
    }

    if (actionId == InputAction::GUI_DOWN) {
        event.consume();

        mWorldList->setSelected(mWorldList->getSelected() + 1);
    }
}