/*
 * Copyright (C) 2008-2012 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/>.
 */

/* ScriptData
SDName: Illidari_Council
SD%Complete: 95
SDComment: Circle of Healing not working properly.
SDCategory: Black Temple
EndScriptData */

#include "ScriptPCH.h"
#include "black_temple.h"

//Speech'n'Sounds
#define SAY_GATH_SLAY           -1564085
#define SAY_GATH_SLAY_COMNT     -1564089
#define SAY_GATH_DEATH          -1564093
#define SAY_GATH_SPECIAL1       -1564077
#define SAY_GATH_SPECIAL2       -1564081

#define SAY_VERA_SLAY           -1564086
#define SAY_VERA_COMNT          -1564089 //signed for 22949
#define SAY_VERA_DEATH          -1564094
#define SAY_VERA_SPECIAL1       -1564078
#define SAY_VERA_SPECIAL2       -1564082

#define SAY_MALA_SLAY           -1564087
#define SAY_MALA_COMNT          -1564090
#define SAY_MALA_DEATH          -1564095
#define SAY_MALA_SPECIAL1       -1564079
#define SAY_MALA_SPECIAL2       -1564083

#define SAY_ZERE_SLAY           -1564088
#define SAY_ZERE_COMNT          -1564091
#define SAY_ZERE_DEATH          -1564096
#define SAY_ZERE_SPECIAL1       -1564080
#define SAY_ZERE_SPECIAL2       -1564084

#define ERROR_INST_DATA           "SD2 ERROR: Instance Data for Black Temple not set properly; Illidari Council event will not function properly."

#define AKAMAID                 23089

struct CouncilYells
{
    int32 entry;
    uint32 timer;
};

static CouncilYells CouncilAggro[]=
{
    {-1564069, 5000},                                       // Gathios
    {-1564070, 5500},                                       // Veras
    {-1564071, 5000},                                       // Malande
    {-1564072, 0},                                          // Zerevor
};

// Need to get proper timers for this later
static CouncilYells CouncilEnrage[]=
{
    {-1564073, 2000},                                       // Gathios
    {-1564074, 6000},                                       // Veras
    {-1564075, 5000},                                       // Malande
    {-1564076, 0},                                          // Zerevor
};

// High Nethermancer Zerevor's spells
#define SPELL_FLAMESTRIKE          41481
#define SPELL_BLIZZARD             41482
#define SPELL_ARCANE_BOLT          41483
#define SPELL_ARCANE_EXPLOSION     41524
#define SPELL_DAMPEN_MAGIC         41478

// Lady Malande's spells
#define SPELL_EMPOWERED_SMITE      41471
#define SPELL_CIRCLE_OF_HEALING    41455
#define SPELL_REFLECTIVE_SHIELD    41475
#define SPELL_REFLECTIVE_SHIELD_T  33619
#define SPELL_DIVINE_WRATH         41472
#define SPELL_HEAL_VISUAL          24171

// Gathios the Shatterer's spells
#define SPELL_BLESS_PROTECTION     41450
#define SPELL_BLESS_SPELLWARD      41451
#define SPELL_CONSECRATION         41541
#define SPELL_HAMMER_OF_JUSTICE    41468
#define SPELL_SEAL_OF_COMMAND      41469
#define SPELL_SEAL_OF_BLOOD        41459
#define SPELL_CHROMATIC_AURA       41453
#define SPELL_DEVOTION_AURA        41452

// Veras Darkshadow's spells
#define SPELL_DEADLY_POISON        41485
#define SPELL_ENVENOM              41487
#define SPELL_VANISH               41479

#define SPELL_BERSERK              45078

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

    CreatureAI* GetAI(Creature* c) const
    {
        return new mob_blood_elf_council_voice_triggerAI(c);
    }

    struct mob_blood_elf_council_voice_triggerAI : public ScriptedAI
    {
        mob_blood_elf_council_voice_triggerAI(Creature* c) : ScriptedAI(c)
        {
            for (uint8 i = 0; i < 4; ++i)
                Council[i] = 0;
        }

        uint64 Council[4];

        uint32 EnrageTimer;
        uint32 AggroYellTimer;

        uint8 YellCounter;                                      // Serves as the counter for both the aggro and enrage yells

        bool EventStarted;

        void Reset()
        {
            EnrageTimer = 900000;                               // 15 minutes
            AggroYellTimer = 500;

            YellCounter = 0;

            EventStarted = false;
        }

        // finds and stores the GUIDs for each Council member using instance data system.
        void LoadCouncilGUIDs()
        {
            if (InstanceScript* instance = me->GetInstanceScript())
            {
                Council[0] = instance->GetData64(DATA_GATHIOSTHESHATTERER);
                Council[1] = instance->GetData64(DATA_VERASDARKSHADOW);
                Council[2] = instance->GetData64(DATA_LADYMALANDE);
                Council[3] = instance->GetData64(DATA_HIGHNETHERMANCERZEREVOR);
            } else sLog->outError(ERROR_INST_DATA);
        }

        void EnterCombat(Unit* /*who*/) {}

        void AttackStart(Unit* /*who*/) {}
        void MoveInLineOfSight(Unit* /*who*/) {}

        void UpdateAI(const uint32 diff)
        {
            if (!EventStarted)
                return;

            if (YellCounter > 3)
                return;

            if (AggroYellTimer)
            {
                if (AggroYellTimer <= diff)
            {
                if (Unit* pMember = Unit::GetUnit(*me, Council[YellCounter]))
                {
                    DoScriptText(CouncilAggro[YellCounter].entry, pMember);
                    AggroYellTimer = CouncilAggro[YellCounter].timer;
                }
                ++YellCounter;
                if (YellCounter > 3)
                    YellCounter = 0;                            // Reuse for Enrage Yells
            } else AggroYellTimer -= diff;
            }

            if (EnrageTimer)
            {
                if (EnrageTimer <= diff)
            {
                if (Unit* pMember = Unit::GetUnit(*me, Council[YellCounter]))
                {
                    pMember->CastSpell(pMember, SPELL_BERSERK, true);
                    DoScriptText(CouncilEnrage[YellCounter].entry, pMember);
                    EnrageTimer = CouncilEnrage[YellCounter].timer;
                }
                ++YellCounter;
            } else EnrageTimer -= diff;
            }
        }
    };

};

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

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

    struct mob_illidari_councilAI : public ScriptedAI
    {
        mob_illidari_councilAI(Creature* c) : ScriptedAI(c)
        {
            instance = c->GetInstanceScript();
            for (uint8 i = 0; i < 4; ++i)
                Council[i] = 0;
        }

        InstanceScript* instance;

        uint64 Council[4];

        uint32 CheckTimer;
        uint32 EndEventTimer;

        uint8 DeathCount;

        bool EventBegun;

        void Reset()
        {
            CheckTimer    = 2000;
            EndEventTimer = 0;

            DeathCount = 0;

            Creature* pMember = NULL;
            for (uint8 i = 0; i < 4; ++i)
            {
                pMember = Unit::GetCreature((*me), Council[i]);
                if (!pMember)
                    continue;

                if (!pMember->isAlive())
                {
                    pMember->RemoveCorpse();
                    pMember->Respawn();
                }
                pMember->AI()->EnterEvadeMode();
            }

            if (instance)
            {
                instance->SetData(DATA_ILLIDARICOUNCILEVENT, NOT_STARTED);
                if (Creature* VoiceTrigger = (Unit::GetCreature(*me, instance->GetData64(DATA_BLOOD_ELF_COUNCIL_VOICE))))
                    VoiceTrigger->AI()->EnterEvadeMode();
            }

            EventBegun = false;

            me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
            me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
            me->SetDisplayId(11686);
        }

        void EnterCombat(Unit* /*who*/) {}
        void AttackStart(Unit* /*who*/) {}
        void MoveInLineOfSight(Unit* /*who*/) {}

        void StartEvent(Unit* target)
        {
            if (!instance)
                return;

            if (target && target->isAlive())
            {
                Council[0] = instance->GetData64(DATA_GATHIOSTHESHATTERER);
                Council[1] = instance->GetData64(DATA_HIGHNETHERMANCERZEREVOR);
                Council[2] = instance->GetData64(DATA_LADYMALANDE);
                Council[3] = instance->GetData64(DATA_VERASDARKSHADOW);

                // Start the event for the Voice Trigger
                if (Creature* VoiceTrigger = (Unit::GetCreature(*me, instance->GetData64(DATA_BLOOD_ELF_COUNCIL_VOICE))))
                {
                    CAST_AI(mob_blood_elf_council_voice_trigger::mob_blood_elf_council_voice_triggerAI, VoiceTrigger->AI())->LoadCouncilGUIDs();
                    CAST_AI(mob_blood_elf_council_voice_trigger::mob_blood_elf_council_voice_triggerAI, VoiceTrigger->AI())->EventStarted = true;
                }

                for (uint8 i = 0; i < 4; ++i)
                {
                    Unit* Member = NULL;
                    if (Council[i])
                    {
                        Member = Unit::GetUnit((*me), Council[i]);
                        if (Member && Member->isAlive())
                            CAST_CRE(Member)->AI()->AttackStart(target);
                    }
                }

                instance->SetData(DATA_ILLIDARICOUNCILEVENT, IN_PROGRESS);

                EventBegun = true;
            }
        }

        void UpdateAI(const uint32 diff)
        {
            if (!EventBegun) return;

            if (EndEventTimer)
            {
                if (EndEventTimer <= diff)
                {
                    if (DeathCount > 3)
                    {
                        if (instance)
                        {
                            if (Creature* VoiceTrigger = (Unit::GetCreature(*me, instance->GetData64(DATA_BLOOD_ELF_COUNCIL_VOICE))))
                                VoiceTrigger->DealDamage(VoiceTrigger, VoiceTrigger->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
                            instance->SetData(DATA_ILLIDARICOUNCILEVENT, DONE);
                            //me->SummonCreature(AKAMAID, 746.466980f, 304.394989f, 311.90208f, 6.272870f, TEMPSUMMON_DEAD_DESPAWN, 0);
                        }
                        me->DealDamage(me, me->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
                        return;
                    }

                    Creature* pMember = (Unit::GetCreature(*me, Council[DeathCount]));
                    if (pMember && pMember->isAlive())
                        pMember->DealDamage(pMember, pMember->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
                    ++DeathCount;
                    EndEventTimer = 1500;
                } else EndEventTimer -= diff;
            }

            if (CheckTimer)
            {
                if (CheckTimer <= diff)
                {
                    uint8 EvadeCheck = 0;
                    for (uint8 i = 0; i < 4; ++i)
                    {
                        if (Council[i])
                        {
                            if (Creature* Member = (Unit::GetCreature((*me), Council[i])))
                            {
                                // This is the evade/death check.
                                if (Member->isAlive() && !Member->getVictim())
                                    ++EvadeCheck;                   //If all members evade, we reset so that players can properly reset the event
                                else if (!Member->isAlive())         // If even one member dies, kill the rest, set instance data, and kill self.
                                {
                                    EndEventTimer = 1000;
                                    CheckTimer = 0;
                                    return;
                                }
                            }
                        }
                    }

                    if (EvadeCheck > 3)
                        Reset();

                    CheckTimer = 2000;
                } else CheckTimer -= diff;
            }

        }
    };

};

struct boss_illidari_councilAI : public ScriptedAI
{
    boss_illidari_councilAI(Creature* c) : ScriptedAI(c)
    {
        instance = c->GetInstanceScript();
        for (uint8 i = 0; i < 4; ++i)
            Council[i] = 0;
        LoadedGUIDs = false;
    }

    uint64 Council[4];

    InstanceScript* instance;

    bool LoadedGUIDs;

    void EnterCombat(Unit* who)
    {
        if (instance)
        {
            Creature* Controller = (Unit::GetCreature(*me, instance->GetData64(DATA_ILLIDARICOUNCIL)));
            if (Controller)
                CAST_AI(mob_illidari_council::mob_illidari_councilAI, Controller->AI())->StartEvent(who);
        }
        else
        {
            sLog->outError(ERROR_INST_DATA);
            EnterEvadeMode();
            return;
        }
        DoZoneInCombat();
        // Load GUIDs on first aggro because the Creature guids are only set as the creatures are created in world-
        // this means that for each creature, it will attempt to LoadGUIDs even though some of the other creatures are
        // not in world, and thus have no GUID set in the instance data system. Putting it in aggro ensures that all the creatures
        // have been loaded and have their GUIDs set in the instance data system.
        if (!LoadedGUIDs)
            LoadGUIDs();
    }

    void EnterEvadeMode()
    {
        for (uint8 i = 0; i < 4; ++i)
        {
            if (Unit* unit = Unit::GetUnit(*me, Council[i]))
                if (unit != me && unit->getVictim())
                {
                    AttackStart(unit->getVictim());
                    return;
                }
        }
        ScriptedAI::EnterEvadeMode();
    }

    void DamageTaken(Unit* done_by, uint32 &damage)
    {
        if (done_by == me)
            return;

        damage /= 4;
        for (uint8 i = 0; i < 4; ++i)
        {
            if (Creature* unit = Unit::GetCreature(*me, Council[i]))
                if (unit != me && damage < unit->GetHealth())
                {
                    unit->ModifyHealth(-int32(damage));
                    unit->LowerPlayerDamageReq(damage);
                }
        }
    }

    void LoadGUIDs()
    {
        if (!instance)
        {
            sLog->outError(ERROR_INST_DATA);
            return;
        }

        Council[0] = instance->GetData64(DATA_LADYMALANDE);
        Council[1] = instance->GetData64(DATA_HIGHNETHERMANCERZEREVOR);
        Council[2] = instance->GetData64(DATA_GATHIOSTHESHATTERER);
        Council[3] = instance->GetData64(DATA_VERASDARKSHADOW);

        LoadedGUIDs = true;
    }
};

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

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

    struct boss_gathios_the_shattererAI : public boss_illidari_councilAI
    {
        boss_gathios_the_shattererAI(Creature* c) : boss_illidari_councilAI(c) {}

        uint32 ConsecrationTimer;
        uint32 HammerOfJusticeTimer;
        uint32 SealTimer;
        uint32 AuraTimer;
        uint32 BlessingTimer;

        void Reset()
        {
            ConsecrationTimer = 40000;
            HammerOfJusticeTimer = 10000;
            SealTimer = 40000;
            AuraTimer = 90000;
            BlessingTimer = 60000;
        }

        void KilledUnit(Unit* /*victim*/)
        {
            DoScriptText(SAY_GATH_SLAY, me);
        }

        void JustDied(Unit* /*victim*/)
        {
            DoScriptText(SAY_GATH_DEATH, me);
        }

        Unit* SelectCouncilMember()
        {
            Unit* unit = me;
            uint32 member = 0;                                  // He chooses Lady Malande most often

            if (rand()%10 == 0)                                  // But there is a chance he picks someone else.
                member = urand(1, 3);

            if (member != 2)                                     // No need to create another pointer to us using Unit::GetUnit
                unit = Unit::GetUnit((*me), Council[member]);
            return unit;
        }

        void CastAuraOnCouncil()
        {
            uint32 spellid = 0;
            switch (urand(0, 1))
            {
                case 0: spellid = SPELL_DEVOTION_AURA;   break;
                case 1: spellid = SPELL_CHROMATIC_AURA;  break;
            }
            for (uint8 i = 0; i < 4; ++i)
            {
                Unit* unit = Unit::GetUnit((*me), Council[i]);
                if (unit)
                    unit->CastSpell(unit, spellid, true, 0, 0, me->GetGUID());
            }
        }

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

            if (BlessingTimer <= diff)
            {
                if (Unit* unit = SelectCouncilMember())
                {
                    switch (urand(0, 1))
                    {
                        case 0: DoCast(unit, SPELL_BLESS_SPELLWARD);  break;
                        case 1: DoCast(unit, SPELL_BLESS_PROTECTION); break;
                    }
                }
                BlessingTimer = 60000;
            } else BlessingTimer -= diff;

            if (ConsecrationTimer <= diff)
            {
                DoCast(me, SPELL_CONSECRATION);
                ConsecrationTimer = 40000;
            } else ConsecrationTimer -= diff;

            if (HammerOfJusticeTimer <= diff)
            {
                if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
                {
                    // is in ~10-40 yd range
                    if (me->IsInRange(target, 10.0f, 40.0f, false))
                    {
                        DoCast(target, SPELL_HAMMER_OF_JUSTICE);
                        HammerOfJusticeTimer = 20000;
                    }
                }
            } else HammerOfJusticeTimer -= diff;

            if (SealTimer <= diff)
            {
                switch (urand(0, 1))
                {
                    case 0: DoCast(me, SPELL_SEAL_OF_COMMAND);  break;
                    case 1: DoCast(me, SPELL_SEAL_OF_BLOOD);    break;
                }
                SealTimer = 40000;
            } else SealTimer -= diff;

            if (AuraTimer <= diff)
            {
                CastAuraOnCouncil();
                AuraTimer = 90000;
            } else AuraTimer -= diff;

            DoMeleeAttackIfReady();
        }
    };

};

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

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

    struct boss_high_nethermancer_zerevorAI : public boss_illidari_councilAI
    {
        boss_high_nethermancer_zerevorAI(Creature* c) : boss_illidari_councilAI(c) {}

        uint32 BlizzardTimer;
        uint32 FlamestrikeTimer;
        uint32 ArcaneBoltTimer;
        uint32 DampenMagicTimer;
        uint32 Cooldown;
        uint32 ArcaneExplosionTimer;

        void Reset()
        {
            BlizzardTimer = urand(30, 91) * 1000;
            FlamestrikeTimer = urand(30, 91) * 1000;
            ArcaneBoltTimer = 10000;
            DampenMagicTimer = 2000;
            ArcaneExplosionTimer = 14000;
            Cooldown = 0;
        }

        void KilledUnit(Unit* /*victim*/)
        {
            DoScriptText(SAY_ZERE_SLAY, me);
        }

        void JustDied(Unit* /*victim*/)
        {
            DoScriptText(SAY_ZERE_DEATH, me);
        }

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

            if (Cooldown)
            {
                if (Cooldown <= diff) Cooldown = 0;
                else
                {
                    Cooldown -= diff;
                    return;                                     // Don't cast any other spells if global cooldown is still ticking
                }
            }

            if (DampenMagicTimer <= diff)
            {
                DoCast(me, SPELL_DAMPEN_MAGIC);
                Cooldown = 1000;
                DampenMagicTimer = 67200;                      // almost 1, 12 minutes
                ArcaneBoltTimer += 1000;                        // Give the Mage some time to spellsteal Dampen.
            } else DampenMagicTimer -= diff;

            if (ArcaneExplosionTimer <= diff)
            {
                DoCast(me->getVictim(), SPELL_ARCANE_EXPLOSION);
                Cooldown = 1000;
                ArcaneExplosionTimer = 14000;
            } else ArcaneExplosionTimer -= diff;

            if (ArcaneBoltTimer <= diff)
            {
                DoCast(me->getVictim(), SPELL_ARCANE_BOLT);
                ArcaneBoltTimer = 3000;
                Cooldown = 2000;
            } else ArcaneBoltTimer -= diff;

            if (BlizzardTimer <= diff)
            {
                if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
                {
                    DoCast(target, SPELL_BLIZZARD);
                    BlizzardTimer = urand(45, 91) * 1000;
                    FlamestrikeTimer += 10000;
                    Cooldown = 1000;
                }
            } else BlizzardTimer -= diff;

            if (FlamestrikeTimer <= diff)
            {
                if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
                {
                    DoCast(target, SPELL_FLAMESTRIKE);
                    FlamestrikeTimer = urand(55, 101) * 1000;
                    BlizzardTimer += 10000;
                    Cooldown = 2000;
                }
            } else FlamestrikeTimer -= diff;
        }
    };

};

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

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

    struct boss_lady_malandeAI : public boss_illidari_councilAI
    {
        boss_lady_malandeAI(Creature* c) : boss_illidari_councilAI(c) {}

        uint32 EmpoweredSmiteTimer;
        uint32 CircleOfHealingTimer;
        uint32 DivineWrathTimer;
        uint32 ReflectiveShieldTimer;

        void Reset()
        {
            EmpoweredSmiteTimer = 38000;
            CircleOfHealingTimer = 20000;
            DivineWrathTimer = 40000;
            ReflectiveShieldTimer = 0;
        }

        void KilledUnit(Unit* /*victim*/)
        {
            DoScriptText(SAY_MALA_SLAY, me);
        }

        void JustDied(Unit* /*victim*/)
        {
            DoScriptText(SAY_MALA_DEATH, me);
        }

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

            if (EmpoweredSmiteTimer <= diff)
            {
                if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
                {
                    DoCast(target, SPELL_EMPOWERED_SMITE);
                    EmpoweredSmiteTimer = 38000;
                }
            } else EmpoweredSmiteTimer -= diff;

            if (CircleOfHealingTimer <= diff)
            {
                DoCast(me, SPELL_CIRCLE_OF_HEALING);
                CircleOfHealingTimer = 60000;
            } else CircleOfHealingTimer -= diff;

            if (DivineWrathTimer <= diff)
            {
                if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
                {
                    DoCast(target, SPELL_DIVINE_WRATH);
                    DivineWrathTimer = urand(40, 81) * 1000;
                }
            } else DivineWrathTimer -= diff;

            if (ReflectiveShieldTimer <= diff)
            {
                DoCast(me, SPELL_REFLECTIVE_SHIELD);
                ReflectiveShieldTimer = 65000;
            } else ReflectiveShieldTimer -= diff;

            DoMeleeAttackIfReady();
        }
    };

};

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

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

    struct boss_veras_darkshadowAI : public boss_illidari_councilAI
    {
        boss_veras_darkshadowAI(Creature* c) : boss_illidari_councilAI(c) {}

        uint64 EnvenomTargetGUID;

        uint32 DeadlyPoisonTimer;
        uint32 VanishTimer;
        uint32 AppearEnvenomTimer;

        bool HasVanished;

        void Reset()
        {
            EnvenomTargetGUID = 0;

            DeadlyPoisonTimer = 20000;
            VanishTimer = urand(60, 121) * 1000;
            AppearEnvenomTimer = 150000;

            HasVanished = false;
            me->SetVisible(true);
            me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
        }

        void KilledUnit(Unit* /*victim*/)
        {
            DoScriptText(SAY_VERA_SLAY, me);
        }

        void JustDied(Unit* /*victim*/)
        {
            DoScriptText(SAY_VERA_DEATH, me);
        }

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

            if (!HasVanished)
            {
                if (DeadlyPoisonTimer <= diff)
                {
                    DoCast(me->getVictim(), SPELL_DEADLY_POISON);
                    DeadlyPoisonTimer = urand(15, 46) * 1000;
                } else DeadlyPoisonTimer -= diff;

                if (AppearEnvenomTimer <= diff)                   // Cast Envenom. This is cast 4 seconds after Vanish is over
                {
                    DoCast(me->getVictim(), SPELL_ENVENOM);
                    AppearEnvenomTimer = 90000;
                } else AppearEnvenomTimer -= diff;

                if (VanishTimer <= diff)                          // Disappear and stop attacking, but follow a random unit
                {
                    if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
                    {
                        VanishTimer = 30000;
                        AppearEnvenomTimer= 28000;
                        HasVanished = true;
                        me->SetVisible(false);
                        me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                        DoResetThreat();
                                                                // Chase a unit. Check before DoMeleeAttackIfReady prevents from attacking
                        me->AddThreat(target, 500000.0f);
                        me->GetMotionMaster()->MoveChase(target);
                    }
                } else VanishTimer -= diff;

                DoMeleeAttackIfReady();
            }
            else
            {
                if (VanishTimer <= diff)                          // Become attackable and poison current target
                {
                    Unit* target = me->getVictim();
                    DoCast(target, SPELL_DEADLY_POISON);
                    me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                    DoResetThreat();
                    me->AddThreat(target, 3000.0f);      // Make Veras attack his target for a while, he will cast Envenom 4 seconds after.
                    DeadlyPoisonTimer += 6000;
                    VanishTimer = 90000;
                    AppearEnvenomTimer = 4000;
                    HasVanished = false;
                } else VanishTimer -= diff;

                if (AppearEnvenomTimer <= diff)                   // Appear 2 seconds before becoming attackable (Shifting out of vanish)
                {
                    me->GetMotionMaster()->Clear();
                    me->GetMotionMaster()->MoveChase(me->getVictim());
                    me->SetVisible(true);
                    AppearEnvenomTimer = 6000;
                } else AppearEnvenomTimer -= diff;
            }
        }
    };
};

// SPELL_REFLECTIVE_SHIELD
class spell_boss_lady_malande_shield : public SpellScriptLoader
{
public:
    spell_boss_lady_malande_shield() : SpellScriptLoader("spell_boss_lady_malande_shield") { }

    class spell_boss_lady_malande_shield_AuraScript : public AuraScript
    {
        PrepareAuraScript(spell_boss_lady_malande_shield_AuraScript);

        bool Validate(SpellInfo const* /*spellEntry*/)
        {
            return sSpellMgr->GetSpellInfo(SPELL_REFLECTIVE_SHIELD_T);
        }

        void Trigger(AuraEffect* aurEff, DamageInfo & dmgInfo, uint32 & absorbAmount)
        {
            Unit* target = GetTarget();
            if (dmgInfo.GetAttacker() == target)
                return;
            int32 bp = absorbAmount / 2;
            target->CastCustomSpell(dmgInfo.GetAttacker(), SPELL_REFLECTIVE_SHIELD_T, &bp, NULL, NULL, true, NULL, aurEff);
        }

        void Register()
        {
             AfterEffectAbsorb += AuraEffectAbsorbFn(spell_boss_lady_malande_shield_AuraScript::Trigger, EFFECT_0);
        }
    };

    AuraScript* GetAuraScript() const
    {
        return new spell_boss_lady_malande_shield_AuraScript();
    }
};

void AddSC_boss_illidari_council()
{
    new mob_illidari_council();
    new mob_blood_elf_council_voice_trigger();
    new boss_gathios_the_shatterer();
    new boss_lady_malande();
    new boss_veras_darkshadow();
    new boss_high_nethermancer_zerevor();
    new spell_boss_lady_malande_shield();
}
