/*
 * Copyright (C) 2008-2017 TrinityCore <http://www.trinitycore.org/>
 *
 * 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 "hyjal.h"
#include "hyjal_trash.h"

enum Spells
{
    SPELL_FROST_ARMOR           = 31256,
    SPELL_DEATH_AND_DECAY       = 31258,
    SPELL_FROST_NOVA            = 31250,
    SPELL_ICEBOLT               = 31249
};

enum Texts
{
    SAY_ONDEATH                 = 0,
    SAY_ONSLAY                  = 1,
    SAY_DECAY                   = 2,
    SAY_NOVA                    = 3,
    SAY_ONAGGRO                 = 4
};

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

    CreatureAI* GetAI(Creature* creature) const override
    {
        return GetInstanceAI<boss_rage_winterchillAI>(creature);
    }

    struct boss_rage_winterchillAI : public hyjal_trashAI
    {
        boss_rage_winterchillAI(Creature* creature) : hyjal_trashAI(creature)
        {
            Initialize();
            instance = creature->GetInstanceScript();
            go = false;
        }

        void Initialize()
        {
            damageTaken = 0;
            FrostArmorTimer = 37000;
            DecayTimer = 45000;
            NovaTimer = 15000;
            IceboltTimer = 10000;
        }

        uint32 FrostArmorTimer;
        uint32 DecayTimer;
        uint32 NovaTimer;
        uint32 IceboltTimer;
        bool go;

        void Reset() override
        {
            Initialize();

            if (IsEvent)
                instance->SetData(DATA_RAGEWINTERCHILLEVENT, NOT_STARTED);
        }

        void EnterCombat(Unit* /*who*/) override
        {
            if (IsEvent)
                instance->SetData(DATA_RAGEWINTERCHILLEVENT, IN_PROGRESS);
            Talk(SAY_ONAGGRO);
        }

        void KilledUnit(Unit* /*victim*/) override
        {
            Talk(SAY_ONSLAY);
        }

        void WaypointReached(uint32 waypointId) override
        {
            if (waypointId == 7 && instance)
            {
                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_JAINAPROUDMOORE));
                if (target && target->IsAlive())
                    me->AddThreat(target, 0.0f);
            }
        }

        void JustDied(Unit* killer) override
        {
            hyjal_trashAI::JustDied(killer);
            if (IsEvent)
                instance->SetData(DATA_RAGEWINTERCHILLEVENT, DONE);
            Talk(SAY_ONDEATH);
        }

        void UpdateAI(uint32 diff) override
        {
            if (IsEvent)
            {
                //Must update npc_escortAI
                npc_escortAI::UpdateAI(diff);
                if (!go)
                {
                    go = true;
                    AddWaypoint(0, 4896.08f,    -1576.35f,    1333.65f);
                    AddWaypoint(1, 4898.68f,    -1615.02f,    1329.48f);
                    AddWaypoint(2, 4907.12f,    -1667.08f,    1321.00f);
                    AddWaypoint(3, 4963.18f,    -1699.35f,    1340.51f);
                    AddWaypoint(4, 4989.16f,    -1716.67f,    1335.74f);
                    AddWaypoint(5, 5026.27f,    -1736.89f,    1323.02f);
                    AddWaypoint(6, 5037.77f,    -1770.56f,    1324.36f);
                    AddWaypoint(7, 5067.23f,    -1789.95f,    1321.17f);
                    Start(false, true);
                    SetDespawnAtEnd(false);
                }
            }

            //Return since we have no target
            if (!UpdateVictim())
                return;

            if (FrostArmorTimer <= diff)
            {
                DoCast(me, SPELL_FROST_ARMOR);
                FrostArmorTimer = 40000 + rand32() % 20000;
            } else FrostArmorTimer -= diff;
            if (DecayTimer <= diff)
            {
                DoCastVictim(SPELL_DEATH_AND_DECAY);
                DecayTimer = 60000 + rand32() % 20000;
                Talk(SAY_DECAY);
            } else DecayTimer -= diff;
            if (NovaTimer <= diff)
            {
                DoCastVictim(SPELL_FROST_NOVA);
                NovaTimer = 30000 + rand32() % 15000;
                Talk(SAY_NOVA);
            } else NovaTimer -= diff;
            if (IceboltTimer <= diff)
            {
                DoCast(SelectTarget(SELECT_TARGET_RANDOM, 0, 40, true), SPELL_ICEBOLT);
                IceboltTimer = 11000 + rand32() % 20000;
            } else IceboltTimer -= diff;

            DoMeleeAttackIfReady();
        }
    };

};

void AddSC_boss_rage_winterchill()
{
    new boss_rage_winterchill();
}
