/*
 * MaNGOS is a full featured server for World of Warcraft, supporting
 * the following clients: 1.12.x, 2.4.3, 3.3.5a, 4.3.4a and 5.4.8
 *
 * Copyright (C) 2005-2014  MaNGOS project <http://getmangos.eu>
 *
 * 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
 * (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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * World of Warcraft, and all World of Warcraft or Warcraft art, images,
 * and lore are copyrighted by Blizzard Entertainment, Inc.
 */

#ifndef SCRIPTMGR_H
#define SCRIPTMGR_H

// Only required includes
#include "../../game/CreatureAI.h"
#include "../../game/Creature.h"
#include "../../game/InstanceData.h"

class Player;
class Creature;
class Quest;
class Item;
class GameObject;
class SpellCastTargets;
class Map;
class Aura;

#define MAX_SCRIPTS 1000
#define MAX_INSTANCE_SCRIPTS 1000

struct Script
{
    Script() :
        pGossipHello(NULL), pGOGossipHello(NULL), pQuestAccept(NULL), pGossipSelect(NULL), pGOGossipSelect(NULL),
        pGossipSelectWithCode(NULL), pGOGossipSelectWithCode(NULL),
        pQuestSelect(NULL), pQuestComplete(NULL), pNPCDialogStatus(NULL), pGODialogStatus(NULL), pChooseReward(NULL),
        pItemHello(NULL), pGOHello(NULL), pProcessEventId(NULL), pAreaTrigger(NULL), pItemQuestAccept(NULL), pGOQuestAccept(NULL),
        pGOChooseReward(NULL), pItemUse(NULL), pEffectDummyGameObj(NULL), pEffectDummyCreature(NULL),
        pEffectDummyItem(NULL), pEffectAuraDummy(NULL), GetAI(NULL), GetInstanceData(NULL)
    {}

    std::string Name;

    // -- Quest/gossip Methods to be scripted --
    bool (*pGossipHello)(Player* player, Creature* _Creature);
    bool (*pGOGossipHello)(Player* player, GameObject* _GO);
    bool (*pQuestAccept)(Player* player, Creature* _Creature, Quest const* _Quest);
    bool (*pGossipSelect)(Player* player, Creature* _Creature, uint32 sender, uint32 action);
    bool (*pGOGossipSelect)(Player* player, GameObject* _GO, uint32 sender, uint32 action);
    bool (*pGossipSelectWithCode)(Player* player, Creature* _Creature, uint32 sender, uint32 action, const char* sCode);
    bool (*pGOGossipSelectWithCode)(Player* player, GameObject* _GO, uint32 sender, uint32 action, const char* sCode);
    bool (*pQuestSelect)(Player* player, Creature* _Creature, Quest const* _Quest);
    bool (*pQuestComplete)(Player* player, Creature* _Creature, Quest const* _Quest);
    uint32(*pNPCDialogStatus)(Player* player, Creature* _Creature);
    uint32(*pGODialogStatus)(Player* player, GameObject* _GO);
    bool (*pChooseReward)(Player* player, Creature* _Creature, Quest const* _Quest, uint32 opt);
    bool (*pItemHello)(Player* player, Item* _Item, Quest const* _Quest);
    bool (*pGOHello)(Player* player, GameObject* _GO);
    bool (*pAreaTrigger)(Player* player, AreaTriggerEntry const* at);
    bool (*pProcessEventId)(uint32 eventId, Object* source, Object* target, bool isStart);
    bool (*pItemQuestAccept)(Player* player, Item* _Item, Quest const* _Quest);
    bool (*pGOQuestAccept)(Player* player, GameObject* _GO, Quest const* _Quest);
    bool (*pGOChooseReward)(Player* player, GameObject* _GO, Quest const* _Quest, uint32 opt);
    bool (*pItemUse)(Player* player, Item* _Item, SpellCastTargets const& targets);
    bool (*pEffectDummyGameObj)(Unit*, uint32, SpellEffectIndex, GameObject*);
    bool (*pEffectDummyCreature)(Unit*, uint32, SpellEffectIndex, Creature*);
    bool (*pEffectDummyItem)(Unit*, uint32, SpellEffectIndex, Item*);
    bool (*pEffectAuraDummy)(const Aura*, bool);

    CreatureAI* (*GetAI)(Creature* _Creature);
    InstanceData* (*GetInstanceData)(Map*);
    // -----------------------------------------

    void registerSelf();
};

#define VISIBLE_RANGE (50.0f)

// Read function descriptions in CreatureAI
struct MANGOS_DLL_DECL ScriptedAI : public CreatureAI
{
    explicit ScriptedAI(Creature* creature) : CreatureAI(creature) {}
    ~ScriptedAI() {}

    // Called at stopping attack by any attacker
    void EnterEvadeMode() override;

    // Is unit visible for MoveInLineOfSight
    bool IsVisible(Unit* who) const override
    {
        return !who->HasStealthAura() && m_creature->IsWithinDist(who, VISIBLE_RANGE);
    }

    // Called at World update tick
    void UpdateAI(const uint32) override;

    //= Some useful helpers =========================

    // Start attack of victim and go to him
    void DoStartAttack(Unit* victim);

    // Stop attack of current victim
    void DoStopAttack();

    // Cast spell
    void DoCast(Unit* victim, uint32 spelId)
    {
        m_creature->CastSpell(victim, spelId, true);
    }

    void DoCastSpell(Unit* who, SpellEntry* spellInfo)
    {
        m_creature->CastSpell(who, spellInfo, true);
    }

    void DoSay(int32 text_id, uint32 language)
    {
        m_creature->MonsterSay(text_id, language);
    }

    void DoGoHome();
};

#endif