//////////////////////////////////////////////////////////////////////////////
// This file is part of the Journey MMORPG client                           //
// Copyright © 2015-2016 Daniel Allendorf                                   //
//                                                                          //
// This program is free software: you can redistribute it and/or modify     //
// it under the terms of the GNU Affero General Public License as           //
// published by the Free Software Foundation, either version 3 of the       //
// License, or (at your option) 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 Affero General Public License for more details.                      //
//                                                                          //
// You should have received a copy of the GNU Affero General Public License //
// along with this program.  If not, see <http://www.gnu.org/licenses/>.    //
//////////////////////////////////////////////////////////////////////////////
#pragma once
#include "../UIElement.h"
#include "../UIDragElement.h"

#include "../Components/Slider.h"

#include "../../Character/CharStats.h"
#include "../../Character/SkillBook.h"
#include "../../Graphics/Text.h"

#include <vector>

namespace jrc
{
    class SkillIcon
    {
    public:
        SkillIcon(int32_t id, int32_t level);

        void draw(const DrawArgument& args) const;

        Cursor::State send_cursor(Point<int16_t> cursorpos, bool clicked);

        int32_t get_id() const;
        Icon* get_drag_icon() const;

    private:
        enum State
        {
            NORMAL,
            DISABLED,
            MOUSEOVER
        };

        Texture normal;
        Texture disabled;
        Texture mouseover;
        Text name;
        Text level;
        int32_t id;
        std::unique_ptr<Icon> drag_icon;

        State state;
        bool enabled;
    };


    class UISkillbook : public UIDragElement<PosSKILL>
    {
    public:
        static constexpr Type TYPE = SKILLBOOK;
        static constexpr bool FOCUSED = false;
        static constexpr bool TOGGLED = true;

        UISkillbook(const CharStats& stats, const Skillbook& skillbook);

        void draw(float alpha) const override;

        void doubleclick(Point<int16_t> cursorpos) override;
        bool remove_cursor(bool clicked, Point<int16_t> cursorpos) override;
        CursorResult send_cursor(bool clicked, Point<int16_t> cursorpos) override;
        void send_key(int32_t keycode, bool pressed, bool escape) override;

        void update_stat(Maplestat::Id stat, int16_t value);
        void update_skills(int32_t skill_id);

    protected:
        Button::State button_pressed(uint16_t id) override;

    private:
        void change_job(uint16_t id);
        void change_sp(int16_t value);
        void update_sp_label();
        int16_t get_beginner_sp() const;
        int16_t get_available_sp() const;
        void change_tab(uint16_t new_tab, bool preserve_offset = false);
        void change_offset(uint16_t new_offset);

        void show_skill(int32_t skill_id);
        void clear_tooltip();

        bool can_raise(int32_t skill_id) const;
        void send_spup(uint16_t row);

        Job::Level joblevel_by_tab(uint16_t tab) const;
        SkillIcon* icon_by_position(Point<int16_t> cursorpos);

        enum Buttons
        {
            BT_GUILD,
            BT_HYPER,
            BT_TAB0,
            BT_TAB1,
            BT_TAB2,
            BT_TAB3,
            BT_TAB4,
            BT_SPUP0,
            BT_SPUP1,
            BT_SPUP2,
            BT_SPUP3
        };

        static constexpr int16_t ROWS = 4;
        static constexpr int16_t ROW_HEIGHT = 40;
        static constexpr Point<int16_t> SKILL_OFFSET = { 11, 93 };
        static constexpr Point<int16_t> ICON_OFFSET  = {  2, 33 };
        static constexpr Point<int16_t> LINE_OFFSET  = {  2, 37 };

        const CharStats& stats;
        const Skillbook& skillbook;

        Slider slider;
        Texture skille;
        Texture skilld;
        Texture line;
        Texture bookicon;
        Text booktext;
        Text splabel;

        Job job;
        int16_t sp;
        int16_t beginner_sp;

        uint16_t tab;
        uint16_t skillcount;
        uint16_t offset;

        std::vector<SkillIcon> icons;
        bool grabbing;
    };
}