/*
 *  The ManaPlus Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *  Copyright (C) 2011  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 "net/tmwa/playerhandler.h"

#include "event.h"
#include "game.h"
#include "localplayer.h"
#include "log.h"
#include "party.h"
#include "playerinfo.h"
#include "units.h"

#include "gui/gui.h"
#include "gui/okdialog.h"
#include "gui/skilldialog.h"
#include "gui/statuswindow.h"
#include "gui/viewport.h"

#include "net/messagein.h"
#include "net/messageout.h"

#include "net/tmwa/protocol.h"
#include "net/tmwa/npchandler.h"
#include "net/tmwa/inventoryhandler.h"

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

extern OkDialog *weightNotice;
extern OkDialog *deathNotice;
extern int weightNoticeTime;

// Max. distance we are willing to scroll after a teleport;
// everything beyond will reset the port hard.
static const int MAP_TELEPORT_SCROLL_DISTANCE = 8;

// TODO Move somewhere else
namespace
{
    /**
     * Listener used for handling the overweigth message.
     */
    struct WeightListener : public gcn::ActionListener
    {
        void action(const gcn::ActionEvent &event _UNUSED_)
        {
            weightNotice = NULL;
        }
    } weightListener;

    /**
     * Listener used for handling death message.
     */
    struct DeathListener : public gcn::ActionListener
    {
        void action(const gcn::ActionEvent &event _UNUSED_)
        {
            Net::getPlayerHandler()->respawn();
            deathNotice = NULL;

            Client::closeDialogs();

            if (viewport)
                viewport->closePopupMenu();

            TmwAthena::NpcHandler *handler =
                    static_cast<TmwAthena::NpcHandler*>(Net::getNpcHandler());
            if (handler)
                handler->clearDialogs();
            if (player_node)
                player_node->respawn();
        }
    } deathListener;

} // anonymous namespace

static const char *randomDeathMessage()
{
    static char const *const deadMsg[] =
    {
        N_("You are dead."),
        N_("We regret to inform you that your character was killed in "
           "battle."),
        N_("You are not that alive anymore."),
        N_("The cold hands of the grim reaper are grabbing for your soul."),
        N_("Game Over!"),
        N_("Insert coin to continue."),
        N_("No, kids. Your character did not really die. It... "
           "err... went to a better place."),
        N_("Your plan of breaking your enemies weapon by "
           "bashing it with your throat failed."),
        N_("I guess this did not run too well."),
        // NetHack reference:
        N_("Do you want your possessions identified?"),
        // Secret of Mana reference:
        N_("Sadly, no trace of you was ever found..."),
        // Final Fantasy VI reference:
        N_("Annihilated."),
        // Earthbound reference:
        N_("Looks like you got your head handed to you."),
        // Leisure Suit Larry 1 reference:
        N_("You screwed up again, dump your body down the tubes "
           "and get you another one."),
        // Monty Python references (Dead Parrot sketch mostly):
        N_("You're not dead yet. You're just resting."),
        N_("You are no more."),
        N_("You have ceased to be."),
        N_("You've expired and gone to meet your maker."),
        N_("You're a stiff."),
        N_("Bereft of life, you rest in peace."),
        N_("If you weren't so animated, you'd be pushing up the daisies."),
        N_("Your metabolic processes are now history."),
        N_("You're off the twig."),
        N_("You've kicked the bucket."),
        N_("You've shuffled off your mortal coil, run down the "
           "curtain and joined the bleedin' choir invisibile."),
        N_("You are an ex-player."),
        N_("You're pining for the fjords.")
    };

    const int random = static_cast<int>(rand() % (sizeof(deadMsg)
        / sizeof(deadMsg[0])));
    return gettext(deadMsg[random]);
}

extern Net::PlayerHandler *playerHandler;

namespace TmwAthena
{

PlayerHandler::PlayerHandler()
{
    static const Uint16 _messages[] =
    {
        SMSG_WALK_RESPONSE,
        SMSG_PLAYER_WARP,
        SMSG_PLAYER_STAT_UPDATE_1,
        SMSG_PLAYER_STAT_UPDATE_2,
        SMSG_PLAYER_STAT_UPDATE_3,
        SMSG_PLAYER_STAT_UPDATE_4,
        SMSG_PLAYER_STAT_UPDATE_5,
        SMSG_PLAYER_STAT_UPDATE_6,
        SMSG_PLAYER_ARROW_MESSAGE,
        0
    };
    handledMessages = _messages;
    playerHandler = this;
}

void PlayerHandler::handleMessage(Net::MessageIn &msg)
{
    switch (msg.getId())
    {
        case SMSG_WALK_RESPONSE:
            /*
             * This client assumes that all walk messages succeed,
             * and that the server will send a correction notice
             * otherwise.
             */
            Uint16 srcX, srcY, dstX, dstY;
            msg.readInt32();    //tick
            msg.readCoordinatePair(srcX, srcY, dstX, dstY);
            if (player_node)
                player_node->setRealPos(dstX, dstY);
//            if (debugChatTab)
//                debugChatTab->chatLog("move resp: " + toString((int)srcX) + "," + toString((int)srcY) + " "
//             + toString((int)dstX) + "," + toString((int)dstY));

            break;

        case SMSG_PLAYER_WARP:
            {
                std::string mapPath = msg.readString(16);
                int x = msg.readInt16();
                int y = msg.readInt16();

                logger->log("Warping to %s (%d, %d)", mapPath.c_str(), x, y);

                if (!player_node)
                    logger->log1("SMSG_PLAYER_WARP player_node null");

                /*
                 * We must clear the local player's target *before* the call
                 * to changeMap, as it deletes all beings.
                 */
                if (player_node)
                    player_node->stopAttack();

                Game *game = Game::instance();

                const std::string &currentMapName = game->getCurrentMapName();
                bool sameMap = (currentMapName == mapPath);

                // Switch the actual map, deleting the previous one if necessary
                mapPath = mapPath.substr(0, mapPath.rfind("."));
                game->changeMap(mapPath);

                float scrollOffsetX = 0.0f;
                float scrollOffsetY = 0.0f;

                if (player_node)
                {
                    Map *map = game->getCurrentMap();
                    if (map)
                    {
                        if (x >= map->getWidth())
                            x = map->getWidth() - 1;
                        if (y >= map->getHeight())
                            y = map->getHeight() - 1;
                        if (x < 0)
                            x = 0;
                        if (y < 0)
                            y = 0;
                        /* Scroll if neccessary */
                        if (!sameMap
                            || (abs(x - player_node->getTileX())
                            > MAP_TELEPORT_SCROLL_DISTANCE)
                            || (abs(y - player_node->getTileY())
                            > MAP_TELEPORT_SCROLL_DISTANCE))
                        {
                            scrollOffsetX = static_cast<float>((x
                                - player_node->getTileX())
                                * map->getTileWidth());
                            scrollOffsetY = static_cast<float>((y
                                - player_node->getTileY())
                                * map->getTileHeight());
                        }
                    }

                    player_node->setAction(Being::STAND);
                    player_node->setTileCoords(x, y);
                    player_node->naviageClean();
//                    player_node->updateNavigateList();
                }

                logger->log("Adjust scrolling by %d:%d",
                    static_cast<int>(scrollOffsetX),
                    static_cast<int>(scrollOffsetY));

                if (viewport)
                    viewport->scrollBy(scrollOffsetX, scrollOffsetY);
            }
            break;

        case SMSG_PLAYER_STAT_UPDATE_1:
            {
                int type = msg.readInt16();
                int value = msg.readInt32();
                if (!player_node)
                    return;

                switch (type)
                {
                    case 0x0000:
                        player_node->setWalkSpeed(Vector(static_cast<float>(
                            value), static_cast<float>(value), 0));
                        PlayerInfo::setStatBase(WALK_SPEED, value);
                        PlayerInfo::setStatMod(WALK_SPEED, 0);
                    break;
                    case 0x0004: break; // manner
                    case 0x0005:
                        PlayerInfo::setAttribute(HP, value);
                        if (player_node->isInParty() && Party::getParty(1))
                        {
                            PartyMember *m = Party::getParty(1)
                                ->getMember(player_node->getId());
                            if (m)
                            {
                                m->setHp(value);
                                m->setMaxHp(PlayerInfo::getAttribute(MAX_HP));
                            }
                        }
                        break;
                    case 0x0006:
                        PlayerInfo::setAttribute(MAX_HP, value);

                        if (player_node->isInParty() && Party::getParty(1))
                        {
                            PartyMember *m = Party::getParty(1)->getMember(
                                player_node->getId());
                            if (m)
                            {
                                m->setHp(PlayerInfo::getAttribute(HP));
                                m->setMaxHp(value);
                            }
                        }
                        break;
                    case 0x0007:
                        PlayerInfo::setAttribute(MP, value);
                        break;
                    case 0x0008:
                        PlayerInfo::setAttribute(MAX_MP, value);
                        break;
                    case 0x0009:
                        PlayerInfo::setAttribute(CHAR_POINTS, value);
                        break;
                    case 0x000b:
                        PlayerInfo::setAttribute(LEVEL, value);
                        if (player_node)
                        {
                            player_node->setLevel(value);
                            player_node->updateName();
                        }
                        break;
                    case 0x000c:
                        PlayerInfo::setAttribute(SKILL_POINTS, value);
                        if (skillDialog)
                            skillDialog->update();
                        break;
                    case 0x0018:
                        if (!weightNotice)
                        {
                            const int max
                                = PlayerInfo::getAttribute(MAX_WEIGHT) / 2;
                            const int total
                                = PlayerInfo::getAttribute(TOTAL_WEIGHT);
                            if (value >= max && total < max)
                            {
                                weightNoticeTime = cur_time + 10;
                                weightNotice = new OkDialog(_("Message"),
                                    _("You are carrying more than "
                                    "half your weight. You are "
                                    "unable to regain health."), false);
                                weightNotice->addActionListener(
                                    &weightListener);
                            }
                            else if (value < max && total >= max)
                            {
                                weightNoticeTime = cur_time + 10;
                                weightNotice = new OkDialog(_("Message"),
                                    _("You are carrying less than "
                                    "half your weight. You are "
                                    "can regain health."), false);
                                weightNotice->addActionListener(
                                    &weightListener);
                            }
                        }
                        PlayerInfo::setAttribute(TOTAL_WEIGHT, value);
                        break;
                    case 0x0019:
                        PlayerInfo::setAttribute(MAX_WEIGHT, value);
                        break;

                    case 0x0029:
                        PlayerInfo::setStatBase(ATK, value);
                        break;
                    case 0x002a:
                        PlayerInfo::setStatMod(ATK, value);
                        break;

                    case 0x002b:
                        PlayerInfo::setStatBase(MATK, value);
                        break;
                    case 0x002c:
                        PlayerInfo::setStatMod(MATK, value);
                        break;

                    case 0x002d:
                        PlayerInfo::setStatBase(DEF, value);
                        break;
                    case 0x002e:
                        PlayerInfo::setStatMod(DEF, value);
                        break;

                    case 0x002f:
                        PlayerInfo::setStatBase(MDEF, value);
                        break;
                    case 0x0030:
                        PlayerInfo::setStatMod(MDEF, value);
                        break;

                    case 0x0031:
                        PlayerInfo::setStatBase(HIT, value);
                        break;

                    case 0x0032:
                        PlayerInfo::setStatBase(FLEE, value);
                        break;
                    case 0x0033:
                        PlayerInfo::setStatMod(FLEE, value);
                        break;

                    case 0x0034:
                        PlayerInfo::setStatBase(CRIT, value);
                        break;

                    case 0x0035:
                        player_node->setAttackSpeed(value);
                        PlayerInfo::setStatBase(ATTACK_SPEED, value);
                        PlayerInfo::setStatMod(ATTACK_SPEED, 0);
                        break;

                    case 0x0037:
                        PlayerInfo::setStatBase(JOB, value);
                        break;

                    case 500:
                        player_node->setGMLevel(value);
                        break;

                    default:
                        logger->log("QQQQ PLAYER_STAT_UPDATE_1 "
                                    + toString(type) + "," + toString(value));
                        break;
                }

                if (PlayerInfo::getAttribute(HP) == 0 && !deathNotice)
                {
                    deathNotice = new OkDialog(_("Message"),
                                               randomDeathMessage(),
                                               false);
                    deathNotice->addActionListener(&deathListener);
                    player_node->setAction(Being::DEAD);
                }
            }
            break;

        case SMSG_PLAYER_STAT_UPDATE_2:
        {
            int type = msg.readInt16();
            switch (type)
            {
                case 0x0001:
                    PlayerInfo::setAttribute(EXP, msg.readInt32());
                    break;
                case 0x0002:
                    PlayerInfo::setStatExperience(JOB, msg.readInt32(),
                    PlayerInfo::getStatExperience(JOB).second);
                    break;
                case 0x0014:
                {
                        int oldMoney = PlayerInfo::getAttribute(MONEY);
                        int newMoney = msg.readInt32();
                        if (newMoney > oldMoney)
                        {
                            SERVER_NOTICE(strprintf(_("You picked up %s."),
                                          Units::formatCurrency(newMoney -
                                          oldMoney).c_str()))
                        }
                        else if (newMoney < oldMoney)
                        {
                            SERVER_NOTICE(strprintf(_("You spent %s."),
                                          Units::formatCurrency(oldMoney -
                                          newMoney).c_str()))
                        }

                        PlayerInfo::setAttribute(MONEY, newMoney);
                    break;
                }
                case 0x0016:
                    PlayerInfo::setAttribute(EXP_NEEDED, msg.readInt32());
                    break;
                case 0x0017:
                    PlayerInfo::setStatExperience(JOB,
                        PlayerInfo::getStatExperience(JOB).first,
                        msg.readInt32());
                    break;
                default:
                    logger->log("QQQQ PLAYER_STAT_UPDATE_2 " + toString(type));
                    break;
            }
            break;
        }
        case SMSG_PLAYER_STAT_UPDATE_3: // Update a base attribute
            {
                int type = msg.readInt32();
                int base = msg.readInt32();
                int bonus = msg.readInt32();

                PlayerInfo::setStatBase(type, base, false);
                PlayerInfo::setStatMod(type, bonus);
            }
            break;

        case SMSG_PLAYER_STAT_UPDATE_4: // Attribute increase ack
            {
                int type = msg.readInt16();
                int ok = msg.readInt8();
                int value = msg.readInt8();

                if (ok != 1)
                {
                    int oldValue = PlayerInfo::getStatBase(type);
                    int points = PlayerInfo::getAttribute(CHAR_POINTS);
                    points += oldValue - value;
                    PlayerInfo::setAttribute(CHAR_POINTS, points);
                    SERVER_NOTICE(_("Cannot raise skill!"))
                }

                PlayerInfo::setStatBase(type, value);
            }
            break;

        // Updates stats and status points
        case SMSG_PLAYER_STAT_UPDATE_5:
            PlayerInfo::setAttribute(CHAR_POINTS, msg.readInt16());
            {
                int val = msg.readInt8();
                PlayerInfo::setStatBase(STR, val);
                if (statusWindow)
                    statusWindow->setPointsNeeded(STR, msg.readInt8());
                else
                    msg.readInt8();

                val = msg.readInt8();
                PlayerInfo::setStatBase(AGI, val);
                if (statusWindow)
                    statusWindow->setPointsNeeded(AGI, msg.readInt8());
                else
                    msg.readInt8();

                val = msg.readInt8();
                PlayerInfo::setStatBase(VIT, val);
                if (statusWindow)
                    statusWindow->setPointsNeeded(VIT, msg.readInt8());
                else
                    msg.readInt8();

                val = msg.readInt8();
                PlayerInfo::setStatBase(INT, val);
                if (statusWindow)
                    statusWindow->setPointsNeeded(INT, msg.readInt8());
                else
                    msg.readInt8();

                val = msg.readInt8();
                PlayerInfo::setStatBase(DEX, val);
                if (statusWindow)
                    statusWindow->setPointsNeeded(DEX, msg.readInt8());
                else
                    msg.readInt8();

                val = msg.readInt8();
                PlayerInfo::setStatBase(LUK, val);
                if (statusWindow)
                    statusWindow->setPointsNeeded(LUK, msg.readInt8());
                else
                    msg.readInt8();

                PlayerInfo::setStatBase(ATK, msg.readInt16(), false);
                PlayerInfo::setStatMod(ATK, msg.readInt16());

                val = msg.readInt16();
                PlayerInfo::setStatBase(MATK, val, false);

                val = msg.readInt16();
                PlayerInfo::setStatMod(MATK, val);

                PlayerInfo::setStatBase(DEF, msg.readInt16(), false);
                PlayerInfo::setStatMod(DEF, msg.readInt16());

                PlayerInfo::setStatBase(MDEF, msg.readInt16(), false);
                PlayerInfo::setStatMod(MDEF, msg.readInt16());

                PlayerInfo::setStatBase(HIT, msg.readInt16());

                PlayerInfo::setStatBase(FLEE, msg.readInt16(), false);
                PlayerInfo::setStatMod(FLEE, msg.readInt16());

                PlayerInfo::setStatBase(CRIT, msg.readInt16());
            }

            msg.readInt16();  // manner
            break;

        case SMSG_PLAYER_STAT_UPDATE_6:
        {
            int type = msg.readInt16();
            if (statusWindow)
            {
                switch (type)
                {
                    case 0x0020:
                        statusWindow->setPointsNeeded(STR, msg.readInt8());
                        break;
                    case 0x0021:
                        statusWindow->setPointsNeeded(AGI, msg.readInt8());
                        break;
                    case 0x0022:
                        statusWindow->setPointsNeeded(VIT, msg.readInt8());
                        break;
                    case 0x0023:
                        statusWindow->setPointsNeeded(INT, msg.readInt8());
                        break;
                    case 0x0024:
                        statusWindow->setPointsNeeded(DEX, msg.readInt8());
                        break;
                    case 0x0025:
                        statusWindow->setPointsNeeded(LUK, msg.readInt8());
                        break;
                    default:
                        logger->log("QQQQ PLAYER_STAT_UPDATE_6 "
                                    + toString(type));
                        break;
                }
            }
            break;
        }
        case SMSG_PLAYER_ARROW_MESSAGE:
            {
                int type = msg.readInt16();

                switch (type)
                {
                    case 0:
                        {
                            SERVER_NOTICE(_("Equip arrows first."))
                        }
                        break;
                    case 3:
                        // arrows equiped
                        break;
                    default:
                        logger->log("QQQQ 0x013b: Unhandled message %i", type);
                        break;
                }
            }
            break;

        default:
            break;
    }
}

void PlayerHandler::attack(int id, bool keep)
{
    MessageOut outMsg(CMSG_PLAYER_ATTACK);
    outMsg.writeInt32(id);
    if (keep)
        outMsg.writeInt8(7);
    else
        outMsg.writeInt8(0);
}

void PlayerHandler::stopAttack()
{
    MessageOut outMsg(CMSG_PLAYER_STOP_ATTACK);
}

void PlayerHandler::emote(Uint8 emoteId)
{
    MessageOut outMsg(CMSG_PLAYER_EMOTE);
    outMsg.writeInt8(emoteId);
}

void PlayerHandler::increaseAttribute(int attr)
{
    if (attr >= STR && attr <= LUK)
    {
        MessageOut outMsg(CMSG_STAT_UPDATE_REQUEST);
        outMsg.writeInt16(static_cast<Sint16>(attr));
        outMsg.writeInt8(1);
    }
}

void PlayerHandler::decreaseAttribute(int attr _UNUSED_)
{
    // Supported by eA?
}

void PlayerHandler::increaseSkill(unsigned short skillId)
{
    if (PlayerInfo::getAttribute(SKILL_POINTS) <= 0)
        return;

    MessageOut outMsg(CMSG_SKILL_LEVELUP_REQUEST);
    outMsg.writeInt16(skillId);
}

void PlayerHandler::pickUp(FloorItem *floorItem)
{
    if (!floorItem)
        return;

    MessageOut outMsg(CMSG_ITEM_PICKUP);
    outMsg.writeInt32(floorItem->getId());
    TmwAthena::InventoryHandler *handler =
        static_cast<TmwAthena::InventoryHandler*>(Net::getInventoryHandler());
    if (handler)
        handler->pushPickup(floorItem->getId());
}

void PlayerHandler::setDirection(char direction)
{
    MessageOut outMsg(CMSG_PLAYER_CHANGE_DIR);
    outMsg.writeInt16(0);
    outMsg.writeInt8(direction);
}

void PlayerHandler::setDestination(int x, int y, int direction)
{
    MessageOut outMsg(CMSG_PLAYER_CHANGE_DEST);
    outMsg.writeCoordinates(static_cast<short unsigned int>(x),
        static_cast<short unsigned int>(y),
        static_cast<unsigned char>(direction));
}

void PlayerHandler::changeAction(Being::Action action)
{
    char type;
    switch (action)
    {
        case Being::SIT:
            type = 2;
            break;
        case Being::STAND:
            type = 3;
            break;
        default:
        case Being::MOVE:
        case Being::ATTACK:
        case Being::DEAD:
        case Being::HURT:
            return;
    }

    MessageOut outMsg(CMSG_PLAYER_CHANGE_ACT);
    outMsg.writeInt32(0);
    outMsg.writeInt8(type);
}

void PlayerHandler::respawn()
{
    MessageOut outMsg(CMSG_PLAYER_RESTART);
    outMsg.writeInt8(0);
}

void PlayerHandler::ignorePlayer(const std::string &player _UNUSED_,
                                 bool ignore _UNUSED_)
{
    // TODO
}

void PlayerHandler::ignoreAll(bool ignore _UNUSED_)
{
    // TODO
}

bool PlayerHandler::canUseMagic()
{
    return PlayerInfo::getStatEffective(MATK) > 0;
}

bool PlayerHandler::canCorrectAttributes()
{
    return false;
}

int PlayerHandler::getJobLocation()
{
    return JOB;
}

Vector PlayerHandler::getDefaultWalkSpeed()
{
    // Return an normalized speed for any side
    // as the offset is calculated elsewhere.
    return Vector(150, 150, 0);
}

} // namespace TmwAthena