/*

 *  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

 *  Copyright (C) 2019-2021  Andrei Karas

 *

 *  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/>.

 */

#ifndef GUI_WINDOWS_BUYDIALOG_H

#define GUI_WINDOWS_BUYDIALOG_H

#include "enums/resources/item/itemtype.h"

#include "enums/simpletypes/beingid.h"

#include "enums/simpletypes/itemcolor.h"

#include "gui/widgets/window.h"

#include "listeners/actionlistener.h"

#include "listeners/selectionlistener.h"

class Being;

class Button;

class DropDown;

class ShopItem;

class ShopItems;

class ShopListBox;

class SortListModelBuy;

class IntTextField;

class Label;

class ScrollArea;

class Slider;

class TextField;

/**

 * The buy dialog.

 *

 * \ingroup Interface

 */

class BuyDialog final : public Window,

                        public ActionListener,

                        public SelectionListener

{

    public:

        /**

         * Constructor.

         *

         * @see Window::Window

         */

        BuyDialog();

        /**

         * Constructor.

         *

         * @see Window::Window

         */

        BuyDialog(const BeingId npcId,

                  const std::string &currency);

#ifdef TMWA_SUPPORT

        /**

         * Constructor.

         *

         * @see Window::Window

         */

        BuyDialog(const std::string &nick,

                  const std::string &currency);

#endif  // TMWA_SUPPORT

        /**

         * Constructor.

         *

         * @see Window::Window

         */

        BuyDialog(const Being *const being,

                  const std::string &currency);

        A_DELETE_COPY(BuyDialog)

        /**

         * Destructor

         */

        ~BuyDialog() override final;

        enum

        {

#ifdef TMWA_SUPPORT

            Nick    = -1,

#endif  // TMWA_SUPPORT

            Items   = -2,

            Market  = -3,

            Cash    = -4,

            Vending = -5

        };

        void init();

        /**

         * Resets the dialog, clearing shop inventory.

         */

        void reset();

        /**

         * Sets the amount of available money.

         */

        void setMoney(const int amount);

        /**

         * Adds an item to the shop inventory.

         */

        ShopItem *addItem(const int id,

                          const ItemTypeT type,

                          const ItemColor color,

                          const int amount,

                          const int price);

        /**

         * Called when receiving actions from the widgets.

         */

        void action(const ActionEvent &event) override final;

        /**

         * Returns the number of items in the shop inventory.

         */

        int getNumberOfElements() A_WARN_UNUSED;

        /**

         * Updates the labels according to the selected item.

         */

        void valueChanged(const SelectionEvent &event) override final;

        /**

         * Updates the state of buttons and labels.

         */

        void updateButtonsAndLabels();

        /**

         * Sets the visibility of this window.

         */

        void setVisible(Visible visible) override final;

        void sort();

        void close() override final;

        /**

         * Returns true if any instances exist.

         */

        static bool isActive() A_WARN_UNUSED

        /**

         * Closes all instances.

         */

        static void closeAll();

    private:

        void updateSlider(const int selectedItem);

        void applyNameFilter(const std::string &filter);

        typedef std::list<BuyDialog*> DialogList;

        static DialogList instances;

        Button *mBuyButton A_NONNULLPOINTER;

        Button *mConfirmButton A_NONNULLPOINTER;

        Button *mQuitButton A_NONNULLPOINTER;

        Button *mAddMaxButton A_NONNULLPOINTER;

        Button *mIncreaseButton A_NONNULLPOINTER;

        Button *mDecreaseButton A_NONNULLPOINTER;

        ShopListBox *mShopItemList A_NONNULLPOINTER;

        ScrollArea *mScrollArea A_NONNULLPOINTER;

        Label *mMoneyLabel A_NONNULLPOINTER;

        Label *mQuantityLabel A_NONNULLPOINTER;

        Slider *mSlider A_NONNULLPOINTER;

        Label *mAmountLabel A_NONNULLPOINTER;

        IntTextField *mAmountField A_NONNULLPOINTER;

        ShopItems *mShopItems A_NONNULLPOINTER;

        SortListModelBuy *mSortModel;

        DropDown *mSortDropDown;

        TextField *mFilterTextField A_NONNULLPOINTER;

        Label *mFilterLabel;

        std::string mNick;

        std::string mCurrency;

        BeingId mNpcId;

        int mMoney;

        int mAmountItems;

        int mMaxItems;

        bool mAdvanced;

};

#endif  // GUI_WINDOWS_BUYDIALOG_H