/*
 * Copyright (C) 2008-2010 TrinityCore <http://www.trinitycore.org/>
 * Copyright (C) 2006-2009 ScriptDev2 <https://scriptdev2.svn.sourceforge.net/>
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#include "ScriptMgr.h"
#include "ScriptedCreature.h"
#include "ScriptedGossip.h"

#define START            1

enum eEnums
{
    NPC_PATCHWERK               = 31099,

    SAY_AGGRO                  = 0,
    SAY_DEATH
};

class Loskutik : public CreatureScript
{
    public:

        Loskutik()
            : CreatureScript("Loskutik")
        {
        }

        struct LoskutikAI : public ScriptedAI
        {
            LoskutikAI(Creature* pCreature) : ScriptedAI(pCreature) {}

            void EnterCombat(Unit* /*pWho*/) override
            {
                Talk(SAY_AGGRO);
                if(me->getVictim())
                    me->AttackerStateUpdate(me->getVictim());
            }

            void EnterEvadeMode() override
            {
                me->DespawnOrUnsummon();
            }

            void JustDied(Unit* pKiller) override
            {
                Talk(SAY_DEATH);
                me->DespawnOrUnsummon();

                if (pKiller->IsPlayer())
                    pKiller->ToPlayer()->KilledMonsterCredit(31099);
            }

            void UpdateAI(uint32 uiDiff) override
            {
                if (!UpdateVictim())
                    return;

                DoMeleeAttackIfReady();
            }
        };

        CreatureAI* GetAI(Creature* creature) const override
        {
            return new LoskutikAI(creature);
        }
};

class Loskutik_Start : public CreatureScript
{
    public:
        Loskutik_Start() : CreatureScript("Loskutik_Start") {}

        struct Loskutik_StartAI : public ScriptedAI
        {
            // CreatureAI functions
            Loskutik_StartAI(Creature* creature) : ScriptedAI(creature) {}

            void Reset() override {}

            void JustDied(Unit* /*who*/) override {}

            void UpdateAI(uint32 uiDiff) override {}
        };

    bool OnGossipHello(Player* player, Creature* creature) override
    {
        player->TalkedToCreature(creature->GetEntry(), creature->GetGUID());
        player->PrepareGossipMenu(creature, 0);
        if (Creature* e = creature->FindNearestCreature(31099, 60.0f))
            return true;

        if ( player->getClass() == CLASS_DEATH_KNIGHT)
            player->ADD_GOSSIP_ITEM(0, "Start event Patchwerk!", GOSSIP_SENDER_MAIN, START);

        player->SendPreparedGossip(creature);

        return true;
    }

    bool OnGossipSelect(Player* player, Creature* creature, uint32 sender, uint32 action) override
    {
        if(sender != GOSSIP_SENDER_MAIN)
        {    
            player->CLOSE_GOSSIP_MENU();
            return true;
        }

        switch(action)
        {
            case START:
                player->CLOSE_GOSSIP_MENU();
                creature->SummonCreature(31099, 2460.29f, -5593.26f, 414.122f, 0, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 20000);
                break;
            default:
                return false;                                   // nothing defined      -> trinity core handling
        }
        return true;
    }

    CreatureAI* GetAI(Creature* creature) const override
    {
        return new Loskutik_StartAI(creature);
    }
};

void AddSC_Loskutik()
{
    new Loskutik();
    new Loskutik_Start();
}