/*
 * This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
 *
 * 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 General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "blackwing_lair.h"
#include "ScriptedCreature.h"
#include "ScriptMgr.h"

enum Spells
{
    SPELL_SHADOWFLAME       = 22539,
    SPELL_WINGBUFFET        = 23339,
    SPELL_FLAMEBUFFET       = 23341
};

enum Events
{
    EVENT_SHADOWFLAME       = 1,
    EVENT_WINGBUFFET        = 2,
    EVENT_FLAMEBUFFET       = 3
};

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

    struct boss_firemawAI : public BossAI
    {
        boss_firemawAI(Creature* creature) : BossAI(creature, DATA_FIREMAW) { }

        void EnterCombat(Unit* who) override
        {
            BossAI::EnterCombat(who);

            events.ScheduleEvent(EVENT_SHADOWFLAME, 10000, 20000);
            events.ScheduleEvent(EVENT_WINGBUFFET, 30000);
            events.ScheduleEvent(EVENT_FLAMEBUFFET, 5000);
        }

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

            events.Update(diff);

            if (me->HasUnitState(UNIT_STATE_CASTING))
                return;

            while (uint32 eventId = events.ExecuteEvent())
            {
                switch (eventId)
                {
                    case EVENT_SHADOWFLAME:
                        DoCastVictim(SPELL_SHADOWFLAME);
                        events.ScheduleEvent(EVENT_SHADOWFLAME, 10000, 20000);
                        break;
                    case EVENT_WINGBUFFET:
                        DoCastVictim(SPELL_WINGBUFFET);
                        if (DoGetThreat(me->GetVictim()))
                            DoModifyThreatPercent(me->GetVictim(), -75);
                        events.ScheduleEvent(EVENT_WINGBUFFET, 30000);
                        break;
                    case EVENT_FLAMEBUFFET:
                        DoCastVictim(SPELL_FLAMEBUFFET);
                        events.ScheduleEvent(EVENT_FLAMEBUFFET, 5000);
                        break;
                }

                if (me->HasUnitState(UNIT_STATE_CASTING))
                    return;
            }

            DoMeleeAttackIfReady();
        }
    };

    CreatureAI* GetAI(Creature* creature) const override
    {
        return GetBlackwingLairAI<boss_firemawAI>(creature);
    }
};

void AddSC_boss_firemaw()
{
    new boss_firemaw();
}
