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

#include "../../Graphics/Geometry.h"
#include "../../Graphics/Texture.h"

#include <cstdint>
#include <string>
#include <vector>
#include <unordered_map>

namespace jrc
{
    class UIChatbar : public UIElement
    {
    public:
        enum ChatTarget
        {
            CHT_ALL,
            CHT_BUDDY,
            CHT_GUILD,
            CHT_ALLIANCE,
            CHT_PARTY,
            CHT_SQUAD,
            NUM_TARGETS
        };

        enum LineType
        {
            UNK0,
            WHITE,
            RED,
            BLUE,
            YELLOW
        };

        struct PartyMember
        {
            int32_t id = 0;
            std::string name;
            int32_t job_id = 0;
            int32_t level = 0;
            int32_t channel = -2;
            int32_t map_id = 0;
            int32_t hp = 0;
            int32_t max_hp = 0;
        };

        UIChatbar(Point<int16_t> position);

        void draw(float inter) const override;
        void update() override;
        void set_position(Point<int16_t> pos);

        bool is_in_range(Point<int16_t> cursorpos) const override;
        bool remove_cursor(bool clicked, Point<int16_t> cursorpos) override;
        CursorResult send_cursor(bool pressed, Point<int16_t> cursorpos) override;

        void send_line(const std::string& line, LineType type);
        void focus_chatfield();
        void set_chat_target(ChatTarget target);
        void cycle_chat_target();
        void set_pending_party_invite(int32_t party_id, const std::string& inviter);
        void clear_pending_party_invite();
        void set_party_state(int32_t party_id, int32_t leader_id, const std::vector<PartyMember>& members);
        void clear_party_state();
        void set_party_leader(int32_t leader_id);
        void update_party_member_hp(int32_t cid, int32_t hp, int32_t max_hp);
        int32_t get_party_id() const;
        int32_t get_party_leader_id() const;
        int32_t get_pending_party_invite_id() const;
        const std::string& get_pending_party_inviter() const;
        const std::vector<PartyMember>& get_party_members() const;

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

    private:
        void set_chat_open(bool open);
        int32_t resolve_party_member_id(const std::string& token) const;
        bool handle_party_command(const std::string& message);
        void send_chat_message(const std::string& message);
        void send_targeted_message(const std::string& target, const std::string& message);
        void send_party_message(const std::string& message);
        int16_t getchattop() const;

        enum Buttons : uint16_t
        {
            BT_OPENCHAT,
            BT_CLOSECHAT,
            BT_SCROLLUP,
            BT_SCROLLDOWN,
            BT_CHATTARGETS
        };

        static constexpr int16_t CHATYOFFSET = 65;
        static constexpr int16_t CHATROWHEIGHT = 16;
        static constexpr int16_t MAXCHATROWS = 16;
        static constexpr int16_t MINCHATROWS = 1;

        Textfield chatfield;
        Texture chatspace[2];
        Texture chattargets[NUM_TARGETS];
        Texture chatenter;
        Texture chatcover;
        Texture tapbar;
        Texture tapbartop;

        bool chatopen;
        ChatTarget chattarget;
        int32_t party_id;
        int32_t party_leader_id;
        int32_t pending_party_invite_id;
        std::string pending_party_inviter;
        std::vector<PartyMember> party_members;

        std::vector<std::string> lastentered;
        size_t lastpos;

        std::unordered_map<int16_t, Text> rowtexts;
        ColorBox chatbox;
        int16_t chatrows;
        int16_t rowpos;
        int16_t rowmax;
        Slider slider;
        bool dragchattop;
    };
}