/*
 * This file is part of the TrinityCore 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 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/>.
 */

/*
 * Scripts for spells with SPELLFAMILY_MAGE and SPELLFAMILY_GENERIC spells used by mage players.
 * Ordered alphabetically using scriptname.
 * Scriptnames of files in this file should be prefixed with "spell_mage_".
 */

#include "ScriptMgr.h"
#include "GridNotifiers.h"
#include "ObjectAccessor.h"
#include "Pet.h"
#include "Player.h"
#include "SpellAuraEffects.h"
#include "SpellHistory.h"
#include "SpellMgr.h"
#include "SpellScript.h"

enum MageSpells
{
    SPELL_MAGE_ALTER_TIME_AURA                   = 110909,
    SPELL_MAGE_ALTER_TIME_VISUAL                 = 347402,
    SPELL_MAGE_ARCANE_ALTER_TIME_AURA            = 342246,
    SPELL_MAGE_ARCANE_BARRAGE_ENERGIZE           = 321529,
    SPELL_MAGE_ARCANE_BARRAGE_R3                 = 321526,
    SPELL_MAGE_ARCANE_CHARGE                     = 36032,
    SPELL_MAGE_ARCANE_MAGE                       = 137021,
    SPELL_MAGE_BLAZING_BARRIER_TRIGGER           = 235314,
    SPELL_MAGE_BLINK                             = 1953,
    SPELL_MAGE_CAUTERIZE_DOT                     = 87023,
    SPELL_MAGE_CAUTERIZED                        = 87024,
    SPELL_MAGE_CONE_OF_COLD                      = 120,
    SPELL_MAGE_CONE_OF_COLD_SLOW                 = 212792,
    SPELL_MAGE_CONJURE_REFRESHMENT               = 116136,
    SPELL_MAGE_CONJURE_REFRESHMENT_TABLE         = 167145,
    SPELL_MAGE_DRAGONHAWK_FORM                   = 32818,
    SPELL_MAGE_EVERWARM_SOCKS                    = 320913,
    SPELL_MAGE_FINGERS_OF_FROST                  = 44544,
    SPELL_MAGE_FROST_NOVA                        = 122,
    SPELL_MAGE_GIRAFFE_FORM                      = 32816,
    SPELL_MAGE_ICE_BARRIER                       = 11426,
    SPELL_MAGE_ICE_BLOCK                         = 45438,
    SPELL_MAGE_IGNITE                            = 12654,
    SPELL_MAGE_LIVING_BOMB_EXPLOSION             = 44461,
    SPELL_MAGE_LIVING_BOMB_PERIODIC              = 217694,
    SPELL_MAGE_MANA_SURGE                        = 37445,
    SPELL_MAGE_MASTER_OF_TIME                    = 342249,
    SPELL_MAGE_REVERBERATE                       = 281482,
    SPELL_MAGE_RING_OF_FROST_DUMMY               = 91264,
    SPELL_MAGE_RING_OF_FROST_FREEZE              = 82691,
    SPELL_MAGE_RING_OF_FROST_SUMMON              = 113724,
    SPELL_MAGE_SERPENT_FORM                      = 32817,
    SPELL_MAGE_SHEEP_FORM                        = 32820,
    SPELL_MAGE_SQUIRREL_FORM                     = 32813,
    SPELL_MAGE_TEMPORAL_DISPLACEMENT             = 80354,
    SPELL_MAGE_WORGEN_FORM                       = 32819,
    SPELL_PET_NETHERWINDS_FATIGUED               = 160455,
    SPELL_MAGE_ICE_LANCE_TRIGGER                 = 228598,
    SPELL_MAGE_THERMAL_VOID                      = 155149,
    SPELL_MAGE_ICY_VEINS                         = 12472,
    SPELL_MAGE_CHAIN_REACTION_DUMMY              = 278309,
    SPELL_MAGE_CHAIN_REACTION                    = 278310,
    SPELL_MAGE_TOUCH_OF_THE_MAGI_EXPLODE         = 210833,
};

enum MiscSpells
{
    SPELL_HUNTER_INSANITY                        = 95809,
    SPELL_SHAMAN_EXHAUSTION                      = 57723,
    SPELL_SHAMAN_SATED                           = 57724,
    SPELL_MAGE_CHILLED                           = 205708
};

// 110909 - Alter Time Aura
// 342246 - Alter Time Aura
class spell_mage_alter_time_aura : public AuraScript
{
    PrepareAuraScript(spell_mage_alter_time_aura);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo
        ({
            SPELL_MAGE_ALTER_TIME_VISUAL,
            SPELL_MAGE_MASTER_OF_TIME,
            SPELL_MAGE_BLINK,
        });
    }

    void OnApply(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
    {
        Unit* unit = GetTarget();
        _health = unit->GetHealth();
        _pos = unit->GetPosition();
    }

    void AfterRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
    {
        Unit* unit = GetTarget();
        if (unit->GetDistance(_pos) <= 100.0f && GetTargetApplication()->GetRemoveMode() == AURA_REMOVE_BY_EXPIRE)
        {
            unit->SetHealth(_health);
            unit->NearTeleportTo(_pos);

            if (unit->HasAura(SPELL_MAGE_MASTER_OF_TIME))
            {
                SpellInfo const* blink = sSpellMgr->AssertSpellInfo(SPELL_MAGE_BLINK, DIFFICULTY_NONE);
                unit->GetSpellHistory()->ResetCharges(blink->ChargeCategoryId);
            }
            unit->CastSpell(unit, SPELL_MAGE_ALTER_TIME_VISUAL);
        }
    }

    void Register() override
    {
        OnEffectApply += AuraEffectApplyFn(spell_mage_alter_time_aura::OnApply, EFFECT_0, SPELL_AURA_OVERRIDE_ACTIONBAR_SPELLS, AURA_EFFECT_HANDLE_REAL);
        AfterEffectRemove += AuraEffectRemoveFn(spell_mage_alter_time_aura::AfterRemove, EFFECT_0, SPELL_AURA_OVERRIDE_ACTIONBAR_SPELLS, AURA_EFFECT_HANDLE_REAL);
    }

private:
    uint64 _health = 0;
    Position _pos;
};

// 127140 - Alter Time Active
// 342247 - Alter Time Active
class spell_mage_alter_time_active : public SpellScript
{
    PrepareSpellScript(spell_mage_alter_time_active);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo
        ({
            SPELL_MAGE_ALTER_TIME_AURA,
            SPELL_MAGE_ARCANE_ALTER_TIME_AURA,
        });
    }

    void RemoveAlterTimeAura(SpellEffIndex /*effIndex*/)
    {
        Unit* unit = GetCaster();
        unit->RemoveAura(SPELL_MAGE_ALTER_TIME_AURA, ObjectGuid::Empty, 0, AURA_REMOVE_BY_EXPIRE);
        unit->RemoveAura(SPELL_MAGE_ARCANE_ALTER_TIME_AURA, ObjectGuid::Empty, 0, AURA_REMOVE_BY_EXPIRE);
    }

    void Register() override
    {
        OnEffectHit += SpellEffectFn(spell_mage_alter_time_active::RemoveAlterTimeAura, EFFECT_0, SPELL_EFFECT_DUMMY);
    }
};

// 44425 - Arcane Barrage
class spell_mage_arcane_barrage : public SpellScript
{
    PrepareSpellScript(spell_mage_arcane_barrage);

    bool Validate(SpellInfo const* spellInfo) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_ARCANE_BARRAGE_R3, SPELL_MAGE_ARCANE_BARRAGE_ENERGIZE })
            && spellInfo->GetEffects().size() > EFFECT_1;
    }

    void ConsumeArcaneCharges()
    {
        Unit* caster = GetCaster();

        // Consume all arcane charges
        if (int32 arcaneCharges = -caster->ModifyPower(POWER_ARCANE_CHARGES, -caster->GetMaxPower(POWER_ARCANE_CHARGES), false))
            if (AuraEffect const* auraEffect = caster->GetAuraEffect(SPELL_MAGE_ARCANE_BARRAGE_R3, EFFECT_0, caster->GetGUID()))
                caster->CastSpell(caster, SPELL_MAGE_ARCANE_BARRAGE_ENERGIZE, { SPELLVALUE_BASE_POINT0, arcaneCharges * auraEffect->GetAmount() / 100 });
    }

    void HandleEffectHitTarget(SpellEffIndex /*effIndex*/)
    {
        if (GetHitUnit()->GetGUID() != _primaryTarget)
            SetHitDamage(CalculatePct(GetHitDamage(), GetEffectInfo(EFFECT_1).CalcValue(GetCaster())));
    }

    void MarkPrimaryTarget(SpellEffIndex /*effIndex*/)
    {
        _primaryTarget = GetHitUnit()->GetGUID();
    }

    void Register() override
    {
        OnEffectHitTarget += SpellEffectFn(spell_mage_arcane_barrage::HandleEffectHitTarget, EFFECT_0, SPELL_EFFECT_SCHOOL_DAMAGE);
        OnEffectLaunchTarget += SpellEffectFn(spell_mage_arcane_barrage::MarkPrimaryTarget, EFFECT_1, SPELL_EFFECT_DUMMY);
        AfterCast += SpellCastFn(spell_mage_arcane_barrage::ConsumeArcaneCharges);
    }

    ObjectGuid _primaryTarget;
};

// 195302 - Arcane Charge
class spell_mage_arcane_charge_clear : public SpellScript
{
    PrepareSpellScript(spell_mage_arcane_charge_clear);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_ARCANE_CHARGE });
    }

    void RemoveArcaneCharge(SpellEffIndex /*effIndex*/)
    {
        GetHitUnit()->RemoveAurasDueToSpell(SPELL_MAGE_ARCANE_CHARGE);
    }

    void Register() override
    {
        OnEffectHitTarget += SpellEffectFn(spell_mage_arcane_charge_clear::RemoveArcaneCharge, EFFECT_0, SPELL_EFFECT_DUMMY);
    }
};

// 1449 - Arcane Explosion
class spell_mage_arcane_explosion : public SpellScript
{
    PrepareSpellScript(spell_mage_arcane_explosion);

    bool Validate(SpellInfo const* spellInfo) override
    {
        if (!ValidateSpellInfo({ SPELL_MAGE_ARCANE_MAGE, SPELL_MAGE_REVERBERATE }))
            return false;

        if (spellInfo->GetEffects().size() <= EFFECT_1)
            return false;

        return spellInfo->GetEffect(EFFECT_1).IsEffect(SPELL_EFFECT_SCHOOL_DAMAGE);
    }

    void CheckRequiredAuraForBaselineEnergize(SpellEffIndex effIndex)
    {
        if (!GetUnitTargetCountForEffect(EFFECT_1) || !GetCaster()->HasAura(SPELL_MAGE_ARCANE_MAGE))
            PreventHitDefaultEffect(effIndex);
    }

    void HandleReverberate(SpellEffIndex effIndex)
    {
        bool procTriggered = [&]()
        {
            Unit const* caster = GetCaster();
            AuraEffect const* triggerChance = caster->GetAuraEffect(SPELL_MAGE_REVERBERATE, EFFECT_0);
            if (!triggerChance)
                return false;

            AuraEffect const* requiredTargets = caster->GetAuraEffect(SPELL_MAGE_REVERBERATE, EFFECT_1);
            if (!requiredTargets)
                return false;

            return GetUnitTargetCountForEffect(EFFECT_1) >= requiredTargets->GetAmount() && roll_chance_i(triggerChance->GetAmount());
        }();

        if (!procTriggered)
            PreventHitDefaultEffect(effIndex);
    }

    void Register() override
    {
        OnEffectHitTarget += SpellEffectFn(spell_mage_arcane_explosion::CheckRequiredAuraForBaselineEnergize, EFFECT_0, SPELL_EFFECT_ENERGIZE);
        OnEffectHitTarget += SpellEffectFn(spell_mage_arcane_explosion::HandleReverberate, EFFECT_2, SPELL_EFFECT_ENERGIZE);
    }
};

// 235313 - Blazing Barrier
class spell_mage_blazing_barrier : public AuraScript
{
    PrepareAuraScript(spell_mage_blazing_barrier);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_BLAZING_BARRIER_TRIGGER });
    }

    void CalculateAmount(AuraEffect const* /*aurEff*/, int32& amount, bool& canBeRecalculated)
    {
        canBeRecalculated = false;
        if (Unit* caster = GetCaster())
            amount = int32(caster->SpellBaseHealingBonusDone(GetSpellInfo()->GetSchoolMask()) * 7.0f);
    }

    void HandleProc(AuraEffect* /*aurEff*/, ProcEventInfo& eventInfo)
    {
        PreventDefaultAction();
        Unit* caster = eventInfo.GetDamageInfo()->GetVictim();
        Unit* target = eventInfo.GetDamageInfo()->GetAttacker();

        if (caster && target)
            caster->CastSpell(target, SPELL_MAGE_BLAZING_BARRIER_TRIGGER, true);
    }

    void Register() override
    {
        DoEffectCalcAmount += AuraEffectCalcAmountFn(spell_mage_blazing_barrier::CalculateAmount, EFFECT_0, SPELL_AURA_SCHOOL_ABSORB);
        OnEffectProc += AuraEffectProcFn(spell_mage_blazing_barrier::HandleProc, EFFECT_1, SPELL_AURA_PROC_TRIGGER_SPELL);
    }
};

// 198063 - Burning Determination
class spell_mage_burning_determination : public AuraScript
{
    PrepareAuraScript(spell_mage_burning_determination);

    bool CheckProc(ProcEventInfo& eventInfo)
    {
        if (SpellInfo const* spellInfo = eventInfo.GetSpellInfo())
            if (spellInfo->GetAllEffectsMechanicMask() & ((1 << MECHANIC_INTERRUPT) | (1 << MECHANIC_SILENCE)))
                return true;

        return false;
    }

    void Register() override
    {
        DoCheckProc += AuraCheckProcFn(spell_mage_burning_determination::CheckProc);
    }
};

// 86949 - Cauterize
class spell_mage_cauterize : public SpellScript
{
    PrepareSpellScript(spell_mage_cauterize);

    void SuppressSpeedBuff(SpellEffIndex effIndex)
    {
        PreventHitDefaultEffect(effIndex);
    }

    void Register() override
    {
        OnEffectLaunch += SpellEffectFn(spell_mage_cauterize::SuppressSpeedBuff, EFFECT_2, SPELL_EFFECT_TRIGGER_SPELL);
    }
};

class spell_mage_cauterize_AuraScript : public AuraScript
{
    PrepareAuraScript(spell_mage_cauterize_AuraScript);

    bool Validate(SpellInfo const* spellInfo) override
    {
        return spellInfo->GetEffects().size() > EFFECT_2 && ValidateSpellInfo
        ({
            SPELL_MAGE_CAUTERIZE_DOT,
            SPELL_MAGE_CAUTERIZED,
            spellInfo->GetEffect(EFFECT_2).TriggerSpell
        });
    }

    void HandleAbsorb(AuraEffect* /*aurEff*/, DamageInfo& dmgInfo, uint32& /*absorbAmount*/)
    {
        AuraEffect const* effect1 = GetEffect(EFFECT_1);
        if (!effect1 ||
            !GetTargetApplication()->HasEffect(EFFECT_1) ||
            dmgInfo.GetDamage() < GetTarget()->GetHealth() ||
            dmgInfo.GetDamage() > GetTarget()->GetMaxHealth() * 2 ||
            GetTarget()->HasAura(SPELL_MAGE_CAUTERIZED))
        {
            PreventDefaultAction();
            return;
        }

        GetTarget()->SetHealth(GetTarget()->CountPctFromMaxHealth(effect1->GetAmount()));
        GetTarget()->CastSpell(GetTarget(), GetEffectInfo(EFFECT_2).TriggerSpell, TRIGGERED_FULL_MASK);
        GetTarget()->CastSpell(GetTarget(), SPELL_MAGE_CAUTERIZE_DOT, TRIGGERED_FULL_MASK);
        GetTarget()->CastSpell(GetTarget(), SPELL_MAGE_CAUTERIZED, TRIGGERED_FULL_MASK);
    }

    void Register() override
    {
        OnEffectAbsorb += AuraEffectAbsorbFn(spell_mage_cauterize_AuraScript::HandleAbsorb, EFFECT_0);
    }
};

// 235219 - Cold Snap
class spell_mage_cold_snap : public SpellScript
{
    PrepareSpellScript(spell_mage_cold_snap);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo
        ({
            SPELL_MAGE_CONE_OF_COLD,
            SPELL_MAGE_FROST_NOVA,
            SPELL_MAGE_ICE_BARRIER,
            SPELL_MAGE_ICE_BLOCK
        });
    }

    void HandleDummy(SpellEffIndex /*effIndex*/)
    {
        GetCaster()->GetSpellHistory()->ResetCooldowns([](SpellHistory::CooldownStorageType::iterator itr)
        {
            switch (itr->first)
            {
                case SPELL_MAGE_CONE_OF_COLD:
                case SPELL_MAGE_FROST_NOVA:
                case SPELL_MAGE_ICE_BARRIER:
                case SPELL_MAGE_ICE_BLOCK:
                    return true;
                default:
                    break;
            }
            return false;
        }, true);
    }

    void Register() override
    {
        OnEffectHit += SpellEffectFn(spell_mage_cold_snap::HandleDummy, EFFECT_0, SPELL_EFFECT_SCRIPT_EFFECT);
    }
};

// 120 - Cone of Cold
class spell_mage_cone_of_cold : public SpellScript
{
    PrepareSpellScript(spell_mage_cone_of_cold);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_CONE_OF_COLD_SLOW });
    }

    void HandleSlow(SpellEffIndex /*effIndex*/)
    {
        GetCaster()->CastSpell(GetHitUnit(), SPELL_MAGE_CONE_OF_COLD_SLOW, true);
    }

    void Register() override
    {
        OnEffectHitTarget += SpellEffectFn(spell_mage_cone_of_cold::HandleSlow, EFFECT_0, SPELL_EFFECT_SCHOOL_DAMAGE);
    }
};

// 190336 - Conjure Refreshment
class spell_mage_conjure_refreshment : public SpellScript
{
    PrepareSpellScript(spell_mage_conjure_refreshment);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo
        ({
            SPELL_MAGE_CONJURE_REFRESHMENT,
            SPELL_MAGE_CONJURE_REFRESHMENT_TABLE
        });
    }

    void HandleDummy(SpellEffIndex /*effIndex*/)
    {
        if (Player* caster = GetCaster()->ToPlayer())
        {
            Group* group = caster->GetGroup();
            if (group)
                caster->CastSpell(caster, SPELL_MAGE_CONJURE_REFRESHMENT_TABLE, true);
            else
                caster->CastSpell(caster, SPELL_MAGE_CONJURE_REFRESHMENT, true);
        }
    }

    void Register() override
    {
        OnEffectHitTarget += SpellEffectFn(spell_mage_conjure_refreshment::HandleDummy, EFFECT_0, SPELL_EFFECT_DUMMY);
    }
};

// 112965 - Fingers of Frost
class spell_mage_fingers_of_frost : public AuraScript
{
    PrepareAuraScript(spell_mage_fingers_of_frost);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_FINGERS_OF_FROST });
    }

    bool CheckFrostboltProc(AuraEffect const* aurEff, ProcEventInfo& eventInfo)
    {
        return eventInfo.GetSpellInfo() && eventInfo.GetSpellInfo()->IsAffected(SPELLFAMILY_MAGE, flag128(0, 0x2000000, 0, 0))
            && roll_chance_i(aurEff->GetAmount());
    }

    bool CheckFrozenOrbProc(AuraEffect const* aurEff, ProcEventInfo& eventInfo)
    {
        return eventInfo.GetSpellInfo() && eventInfo.GetSpellInfo()->IsAffected(SPELLFAMILY_MAGE, flag128(0, 0, 0x80, 0))
            && roll_chance_i(aurEff->GetAmount());
    }

    void Trigger(AuraEffect* aurEff, ProcEventInfo& eventInfo)
    {
        eventInfo.GetActor()->CastSpell(GetTarget(), SPELL_MAGE_FINGERS_OF_FROST, aurEff);
    }

    void Register() override
    {
        DoCheckEffectProc += AuraCheckEffectProcFn(spell_mage_fingers_of_frost::CheckFrostboltProc, EFFECT_0, SPELL_AURA_DUMMY);
        DoCheckEffectProc += AuraCheckEffectProcFn(spell_mage_fingers_of_frost::CheckFrozenOrbProc, EFFECT_1, SPELL_AURA_DUMMY);
        AfterEffectProc += AuraEffectProcFn(spell_mage_fingers_of_frost::Trigger, EFFECT_0, SPELL_AURA_DUMMY);
        AfterEffectProc += AuraEffectProcFn(spell_mage_fingers_of_frost::Trigger, EFFECT_1, SPELL_AURA_DUMMY);
    }
};

// 11426 - Ice Barrier
class spell_mage_ice_barrier : public AuraScript
{
    PrepareAuraScript(spell_mage_ice_barrier);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo
        ({
            SPELL_MAGE_CHILLED
        });
    }

    void CalculateAmount(AuraEffect const* /*aurEff*/, int32& amount, bool& canBeRecalculated)
    {
        canBeRecalculated = false;
        if (Unit* caster = GetCaster())
            amount += int32(caster->SpellBaseHealingBonusDone(GetSpellInfo()->GetSchoolMask()) * 10.0f);
    }

    void HandleProc(AuraEffect* /*aurEff*/, ProcEventInfo& eventInfo)
    {
        Unit* caster = eventInfo.GetDamageInfo()->GetVictim();
        Unit* target = eventInfo.GetDamageInfo()->GetAttacker();

        if (caster && target)
            caster->CastSpell(target, SPELL_MAGE_CHILLED, true);
    }

    void Register() override
    {
        DoEffectCalcAmount += AuraEffectCalcAmountFn(spell_mage_ice_barrier::CalculateAmount, EFFECT_0, SPELL_AURA_SCHOOL_ABSORB);
        OnEffectProc += AuraEffectProcFn(spell_mage_ice_barrier::HandleProc, EFFECT_0, SPELL_AURA_SCHOOL_ABSORB);
    }
};

// 45438 - Ice Block
class spell_mage_ice_block : public SpellScript
{
    PrepareSpellScript(spell_mage_ice_block);

    bool Validate(SpellInfo const* spellInfo) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_EVERWARM_SOCKS });
    }

    void PreventStunWithEverwarmSocks(WorldObject*& target)
    {
        if (GetCaster()->HasAura(SPELL_MAGE_EVERWARM_SOCKS))
            target = nullptr;
    }

    void PreventEverwarmSocks(WorldObject*& target)
    {
        if (!GetCaster()->HasAura(SPELL_MAGE_EVERWARM_SOCKS))
            target = nullptr;
    }

    void Register() override
    {
        OnObjectTargetSelect += SpellObjectTargetSelectFn(spell_mage_ice_block::PreventStunWithEverwarmSocks, EFFECT_0, TARGET_UNIT_CASTER);
        OnObjectTargetSelect += SpellObjectTargetSelectFn(spell_mage_ice_block::PreventEverwarmSocks, EFFECT_5, TARGET_UNIT_CASTER);
        OnObjectTargetSelect += SpellObjectTargetSelectFn(spell_mage_ice_block::PreventEverwarmSocks, EFFECT_6, TARGET_UNIT_CASTER);
    }
};

// Ice Lance - 30455
class spell_mage_ice_lance : public SpellScript
{
    PrepareSpellScript(spell_mage_ice_lance);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo
        ({
            SPELL_MAGE_ICE_LANCE_TRIGGER,
            SPELL_MAGE_THERMAL_VOID,
            SPELL_MAGE_ICY_VEINS,
            SPELL_MAGE_CHAIN_REACTION_DUMMY,
            SPELL_MAGE_CHAIN_REACTION,
            SPELL_MAGE_FINGERS_OF_FROST
        });
    }

    void IndexTarget(SpellEffIndex /*effIndex*/)
    {
        _orderedTargets.push_back(GetHitUnit()->GetGUID());
    }

    void HandleOnHit(SpellEffIndex /*effIndex*/)
    {
        Unit* caster = GetCaster();
        Unit* target = GetHitUnit();

        std::ptrdiff_t index = std::distance(_orderedTargets.begin(), std::find(_orderedTargets.begin(), _orderedTargets.end(), target->GetGUID()));

        if (index == 0 // only primary target triggers these benefits
            && target->HasAuraState(AURA_STATE_FROZEN, GetSpellInfo(), caster))
        {
            // Thermal Void
            if (Aura const* thermalVoid = caster->GetAura(SPELL_MAGE_THERMAL_VOID))
                if (!thermalVoid->GetSpellInfo()->GetEffects().empty())
                    if (Aura* icyVeins = caster->GetAura(SPELL_MAGE_ICY_VEINS))
                        icyVeins->SetDuration(icyVeins->GetDuration() + thermalVoid->GetSpellInfo()->GetEffect(EFFECT_0).CalcValue(caster) * IN_MILLISECONDS);

            // Chain Reaction
            if (caster->HasAura(SPELL_MAGE_CHAIN_REACTION_DUMMY))
                caster->CastSpell(caster, SPELL_MAGE_CHAIN_REACTION, true);
        }

        // put target index for chain value multiplier into EFFECT_1 base points, otherwise triggered spell doesn't know which damage multiplier to apply
        CastSpellExtraArgs args;
        args.TriggerFlags = TRIGGERED_FULL_MASK;
        args.AddSpellMod(SPELLVALUE_BASE_POINT1, index);
        caster->CastSpell(target, SPELL_MAGE_ICE_LANCE_TRIGGER, args);
    }

    void Register() override
    {
        OnEffectLaunchTarget += SpellEffectFn(spell_mage_ice_lance::IndexTarget, EFFECT_0, SPELL_EFFECT_SCRIPT_EFFECT);
        OnEffectHitTarget += SpellEffectFn(spell_mage_ice_lance::HandleOnHit, EFFECT_0, SPELL_EFFECT_SCRIPT_EFFECT);
    }

    std::vector<ObjectGuid> _orderedTargets;
};

// 228598 - Ice Lance
class spell_mage_ice_lance_damage : public SpellScript
{
    PrepareSpellScript(spell_mage_ice_lance_damage);

    void ApplyDamageMultiplier(SpellEffIndex /*effIndex*/)
    {
        SpellValue const* spellValue = GetSpellValue();
        if (spellValue->CustomBasePointsMask & (1 << EFFECT_1))
        {
            int32 originalDamage = GetHitDamage();
            float targetIndex = float(spellValue->EffectBasePoints[EFFECT_1]);
            float multiplier = std::pow(GetEffectInfo().CalcDamageMultiplier(GetCaster(), GetSpell()), targetIndex);
            SetHitDamage(int32(originalDamage * multiplier));
        }
    }

    void Register() override
    {
        OnEffectHitTarget += SpellEffectFn(spell_mage_ice_lance_damage::ApplyDamageMultiplier, EFFECT_0, SPELL_EFFECT_SCHOOL_DAMAGE);
    }
};

// 12846 - Ignite
class spell_mage_ignite : public AuraScript
{
    PrepareAuraScript(spell_mage_ignite);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_IGNITE });
    }

    bool CheckProc(ProcEventInfo& eventInfo)
    {
        return eventInfo.GetProcTarget() != nullptr;
    }

    void HandleProc(AuraEffect* aurEff, ProcEventInfo& eventInfo)
    {
        PreventDefaultAction();

        SpellInfo const* igniteDot = sSpellMgr->AssertSpellInfo(SPELL_MAGE_IGNITE, GetCastDifficulty());
        int32 pct = aurEff->GetAmount();

        ASSERT(igniteDot->GetMaxTicks() > 0);
        int32 amount = int32(CalculatePct(eventInfo.GetDamageInfo()->GetDamage(), pct) / igniteDot->GetMaxTicks());

        CastSpellExtraArgs args(aurEff);
        args.AddSpellMod(SPELLVALUE_BASE_POINT0, amount);
        GetTarget()->CastSpell(eventInfo.GetProcTarget(), SPELL_MAGE_IGNITE, args);
    }

    void Register() override
    {
        DoCheckProc += AuraCheckProcFn(spell_mage_ignite::CheckProc);
        OnEffectProc += AuraEffectProcFn(spell_mage_ignite::HandleProc, EFFECT_0, SPELL_AURA_DUMMY);
    }
};

// 37447 - Improved Mana Gems
// 61062 - Improved Mana Gems
class spell_mage_imp_mana_gems : public AuraScript
{
    PrepareAuraScript(spell_mage_imp_mana_gems);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_MANA_SURGE });
    }

    void HandleProc(AuraEffect* /*aurEff*/, ProcEventInfo& eventInfo)
    {
        PreventDefaultAction();
        eventInfo.GetActor()->CastSpell(nullptr, SPELL_MAGE_MANA_SURGE, true);
    }

    void Register() override
    {
        OnEffectProc += AuraEffectProcFn(spell_mage_imp_mana_gems::HandleProc, EFFECT_1, SPELL_AURA_DUMMY);
    }
};

// 44457 - Living Bomb
class spell_mage_living_bomb : public SpellScript
{
    PrepareSpellScript(spell_mage_living_bomb);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_LIVING_BOMB_PERIODIC });
    }

    void HandleDummy(SpellEffIndex effIndex)
    {
        PreventHitDefaultEffect(effIndex);
        GetCaster()->CastSpell(GetHitUnit(), SPELL_MAGE_LIVING_BOMB_PERIODIC, CastSpellExtraArgs(TRIGGERED_FULL_MASK).AddSpellMod(SPELLVALUE_BASE_POINT2, 1));
    }

    void Register() override
    {
        OnEffectHitTarget += SpellEffectFn(spell_mage_living_bomb::HandleDummy, EFFECT_0, SPELL_EFFECT_DUMMY);
    }
};

// 44461 - Living Bomb
class spell_mage_living_bomb_explosion : public SpellScript
{
    PrepareSpellScript(spell_mage_living_bomb_explosion);

    bool Validate(SpellInfo const* spellInfo) override
    {
        return spellInfo->NeedsExplicitUnitTarget() && ValidateSpellInfo({ SPELL_MAGE_LIVING_BOMB_PERIODIC });
    }

    void FilterTargets(std::list<WorldObject*>& targets)
    {
        targets.remove(GetExplTargetWorldObject());
    }

    void HandleSpread(SpellEffIndex /*effIndex*/)
    {
        if (GetSpellValue()->EffectBasePoints[EFFECT_0] > 0)
            GetCaster()->CastSpell(GetHitUnit(), SPELL_MAGE_LIVING_BOMB_PERIODIC, CastSpellExtraArgs(TRIGGERED_FULL_MASK).AddSpellMod(SPELLVALUE_BASE_POINT2, 0));
    }

    void Register() override
    {
        OnObjectAreaTargetSelect += SpellObjectAreaTargetSelectFn(spell_mage_living_bomb_explosion::FilterTargets, EFFECT_1, TARGET_UNIT_DEST_AREA_ENEMY);
        OnEffectHitTarget += SpellEffectFn(spell_mage_living_bomb_explosion::HandleSpread, EFFECT_1, SPELL_EFFECT_SCHOOL_DAMAGE);
    }
};

// 217694 - Living Bomb
class spell_mage_living_bomb_periodic : public AuraScript
{
    PrepareAuraScript(spell_mage_living_bomb_periodic);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_LIVING_BOMB_EXPLOSION });
    }

    void AfterRemove(AuraEffect const* aurEff, AuraEffectHandleModes /*mode*/)
    {
        if (GetTargetApplication()->GetRemoveMode() != AURA_REMOVE_BY_EXPIRE)
            return;

        if (Unit* caster = GetCaster())
            caster->CastSpell(GetTarget(), SPELL_MAGE_LIVING_BOMB_EXPLOSION, CastSpellExtraArgs(TRIGGERED_FULL_MASK).AddSpellMod(SPELLVALUE_BASE_POINT0, aurEff->GetAmount()));
    }

    void Register() override
    {
        AfterEffectRemove += AuraEffectRemoveFn(spell_mage_living_bomb_periodic::AfterRemove, EFFECT_2, SPELL_AURA_DUMMY, AURA_EFFECT_HANDLE_REAL);
    }
};

enum SilvermoonPolymorph
{
    NPC_AUROSALIA       = 18744
};

/// @todo move out of here and rename - not a mage spell
// 32826 - Polymorph (Visual)
class spell_mage_polymorph_visual : public SpellScript
{
    PrepareSpellScript(spell_mage_polymorph_visual);

    static const uint32 PolymorhForms[6];

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo(PolymorhForms);
    }

    void HandleDummy(SpellEffIndex /*effIndex*/)
    {
        if (Unit* target = GetCaster()->FindNearestCreature(NPC_AUROSALIA, 30.0f))
            if (target->GetTypeId() == TYPEID_UNIT)
                target->CastSpell(target, PolymorhForms[urand(0, 5)], true);
    }

    void Register() override
    {
        // add dummy effect spell handler to Polymorph visual
        OnEffectHitTarget += SpellEffectFn(spell_mage_polymorph_visual::HandleDummy, EFFECT_0, SPELL_EFFECT_DUMMY);
    }
};

uint32 const spell_mage_polymorph_visual::PolymorhForms[6] =
{
    SPELL_MAGE_SQUIRREL_FORM,
    SPELL_MAGE_GIRAFFE_FORM,
    SPELL_MAGE_SERPENT_FORM,
    SPELL_MAGE_DRAGONHAWK_FORM,
    SPELL_MAGE_WORGEN_FORM,
    SPELL_MAGE_SHEEP_FORM
};

// 235450 - Prismatic Barrier
class spell_mage_prismatic_barrier : public AuraScript
{
    PrepareAuraScript(spell_mage_prismatic_barrier);

    void CalculateAmount(AuraEffect const* /*aurEff*/, int32& amount, bool& canBeRecalculated)
    {
        canBeRecalculated = false;
        if (Unit* caster = GetCaster())
            amount += int32(caster->SpellBaseHealingBonusDone(GetSpellInfo()->GetSchoolMask()) * 7.0f);
    }

    void Register() override
    {
        DoEffectCalcAmount += AuraEffectCalcAmountFn(spell_mage_prismatic_barrier::CalculateAmount, EFFECT_0, SPELL_AURA_SCHOOL_ABSORB);
    }
};

// 136511 - Ring of Frost
class spell_mage_ring_of_frost : public AuraScript
{
    PrepareAuraScript(spell_mage_ring_of_frost);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_RING_OF_FROST_SUMMON, SPELL_MAGE_RING_OF_FROST_FREEZE })
            && !sSpellMgr->AssertSpellInfo(SPELL_MAGE_RING_OF_FROST_SUMMON, DIFFICULTY_NONE)->GetEffects().empty();
    }

    void HandleEffectPeriodic(AuraEffect const* /*aurEff*/)
    {
        if (TempSummon* ringOfFrost = GetRingOfFrostMinion())
            GetTarget()->CastSpell(ringOfFrost->GetPosition(), SPELL_MAGE_RING_OF_FROST_FREEZE, true);
    }

    void Apply(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
    {
        std::list<TempSummon*> minions;
        GetTarget()->GetAllMinionsByEntry(minions, sSpellMgr->AssertSpellInfo(SPELL_MAGE_RING_OF_FROST_SUMMON, GetCastDifficulty())->GetEffect(EFFECT_0).MiscValue);

        // Get the last summoned RoF, save it and despawn older ones
        for (TempSummon* summon : minions)
        {
            if (TempSummon* ringOfFrost = GetRingOfFrostMinion())
            {
                if (summon->GetTimer() > ringOfFrost->GetTimer())
                {
                    ringOfFrost->DespawnOrUnsummon();
                    _ringOfFrostGUID = summon->GetGUID();
                }
                else
                    summon->DespawnOrUnsummon();
            }
            else
                _ringOfFrostGUID = summon->GetGUID();
        }
    }

    void Register() override
    {
        OnEffectPeriodic += AuraEffectPeriodicFn(spell_mage_ring_of_frost::HandleEffectPeriodic, EFFECT_0, SPELL_AURA_PERIODIC_TRIGGER_SPELL);
        OnEffectApply += AuraEffectApplyFn(spell_mage_ring_of_frost::Apply, EFFECT_0, SPELL_AURA_PERIODIC_TRIGGER_SPELL, AURA_EFFECT_HANDLE_REAL_OR_REAPPLY_MASK);
    }

private:
    TempSummon* GetRingOfFrostMinion() const
    {
        if (Creature* creature = ObjectAccessor::GetCreature(*GetOwner(), _ringOfFrostGUID))
            return creature->ToTempSummon();
        return nullptr;
    }

    ObjectGuid _ringOfFrostGUID;
};

// 82691 - Ring of Frost (freeze efect)
class spell_mage_ring_of_frost_freeze : public SpellScript
{
    PrepareSpellScript(spell_mage_ring_of_frost_freeze);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_RING_OF_FROST_SUMMON, SPELL_MAGE_RING_OF_FROST_FREEZE })
            && !sSpellMgr->AssertSpellInfo(SPELL_MAGE_RING_OF_FROST_SUMMON, DIFFICULTY_NONE)->GetEffects().empty();
    }

    void FilterTargets(std::list<WorldObject*>& targets)
    {
        WorldLocation const* dest = GetExplTargetDest();
        float outRadius = sSpellMgr->AssertSpellInfo(SPELL_MAGE_RING_OF_FROST_SUMMON, GetCastDifficulty())->GetEffect(EFFECT_0).CalcRadius();
        float inRadius = 6.5f;

        targets.remove_if([dest, outRadius, inRadius](WorldObject* target)
        {
            Unit* unit = target->ToUnit();
            if (!unit)
                return true;
            return unit->HasAura(SPELL_MAGE_RING_OF_FROST_DUMMY) || unit->HasAura(SPELL_MAGE_RING_OF_FROST_FREEZE) || unit->GetExactDist(dest) > outRadius || unit->GetExactDist(dest) < inRadius;
        });
    }

    void Register() override
    {
        OnObjectAreaTargetSelect += SpellObjectAreaTargetSelectFn(spell_mage_ring_of_frost_freeze::FilterTargets, EFFECT_0, TARGET_UNIT_DEST_AREA_ENEMY);
    }
};

class spell_mage_ring_of_frost_freeze_AuraScript : public AuraScript
{
    PrepareAuraScript(spell_mage_ring_of_frost_freeze_AuraScript);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_RING_OF_FROST_DUMMY });
    }

    void OnRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
    {
        if (GetTargetApplication()->GetRemoveMode() != AURA_REMOVE_BY_EXPIRE)
            if (GetCaster())
                GetCaster()->CastSpell(GetTarget(), SPELL_MAGE_RING_OF_FROST_DUMMY, true);
    }

    void Register() override
    {
        AfterEffectRemove += AuraEffectRemoveFn(spell_mage_ring_of_frost_freeze_AuraScript::OnRemove, EFFECT_0, SPELL_AURA_MOD_STUN, AURA_EFFECT_HANDLE_REAL);
    }
};

// 80353 - Time Warp
class spell_mage_time_warp : public SpellScript
{
    PrepareSpellScript(spell_mage_time_warp);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo(
        {
            SPELL_MAGE_TEMPORAL_DISPLACEMENT,
            SPELL_HUNTER_INSANITY,
            SPELL_SHAMAN_EXHAUSTION,
            SPELL_SHAMAN_SATED,
            SPELL_PET_NETHERWINDS_FATIGUED
        });
    }

    void RemoveInvalidTargets(std::list<WorldObject*>& targets)
    {
        targets.remove_if(Trinity::UnitAuraCheck(true, SPELL_MAGE_TEMPORAL_DISPLACEMENT));
        targets.remove_if(Trinity::UnitAuraCheck(true, SPELL_HUNTER_INSANITY));
        targets.remove_if(Trinity::UnitAuraCheck(true, SPELL_SHAMAN_EXHAUSTION));
        targets.remove_if(Trinity::UnitAuraCheck(true, SPELL_SHAMAN_SATED));
    }

    void ApplyDebuff()
    {
        if (Unit* target = GetHitUnit())
            target->CastSpell(target, SPELL_MAGE_TEMPORAL_DISPLACEMENT, true);
    }

    void Register() override
    {
        OnObjectAreaTargetSelect += SpellObjectAreaTargetSelectFn(spell_mage_time_warp::RemoveInvalidTargets, EFFECT_ALL, TARGET_UNIT_CASTER_AREA_RAID);
        AfterHit += SpellHitFn(spell_mage_time_warp::ApplyDebuff);
    }
};

// 210824 - Touch of the Magi (Aura)
class spell_mage_touch_of_the_magi_aura : public AuraScript
{
    PrepareAuraScript(spell_mage_touch_of_the_magi_aura);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_TOUCH_OF_THE_MAGI_EXPLODE });
    }

    void HandleProc(AuraEffect* aurEff, ProcEventInfo& eventInfo)
    {
        DamageInfo* damageInfo = eventInfo.GetDamageInfo();
        if (damageInfo)
        {
            if (damageInfo->GetAttacker() == GetCaster() && damageInfo->GetVictim() == GetTarget())
            {
                uint32 extra = CalculatePct(damageInfo->GetDamage(), 25);
                if (extra > 0)
                    aurEff->ChangeAmount(aurEff->GetAmount() + extra);
            }
        }
    }

    void AfterRemove(AuraEffect const* aurEff, AuraEffectHandleModes /*mode*/)
    {
        int32 amount = aurEff->GetAmount();
        if (!amount || GetTargetApplication()->GetRemoveMode() != AURA_REMOVE_BY_EXPIRE)
            return;

        if (Unit* caster = GetCaster())
            caster->CastSpell(GetTarget(), SPELL_MAGE_TOUCH_OF_THE_MAGI_EXPLODE, CastSpellExtraArgs(TRIGGERED_FULL_MASK).AddSpellMod(SPELLVALUE_BASE_POINT0, amount));
    }

    void Register() override
    {
        OnEffectProc += AuraEffectProcFn(spell_mage_touch_of_the_magi_aura::HandleProc, EFFECT_0, SPELL_AURA_DUMMY);
        AfterEffectRemove += AuraEffectRemoveFn(spell_mage_touch_of_the_magi_aura::AfterRemove, EFFECT_0, SPELL_AURA_DUMMY, AURA_EFFECT_HANDLE_REAL);
    }
};

/* 228597 - Frostbolt
   84721  - Frozen Orb
   190357 - Blizzard */
class spell_mage_trigger_chilled : public SpellScript
{
    PrepareSpellScript(spell_mage_trigger_chilled);

    bool Validate(SpellInfo const* /*spell*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_CHILLED });
    }

    void HandleChilled()
    {
        if (Unit* target = GetHitUnit())
            GetCaster()->CastSpell(target, SPELL_MAGE_CHILLED, true);
    }

    void Register() override
    {
        OnHit += SpellHitFn(spell_mage_trigger_chilled::HandleChilled);
    }
};

// 33395 Water Elemental's Freeze
class spell_mage_water_elemental_freeze : public SpellScript
{
    PrepareSpellScript(spell_mage_water_elemental_freeze);

    bool Validate(SpellInfo const* /*spellInfo*/) override
    {
        return ValidateSpellInfo({ SPELL_MAGE_FINGERS_OF_FROST });
    }

    void HandleImprovedFreeze()
    {
        Unit* owner = GetCaster()->GetOwner();
        if (!owner)
            return;

        owner->CastSpell(owner, SPELL_MAGE_FINGERS_OF_FROST, true);
    }

    void Register() override
    {
        AfterHit += SpellHitFn(spell_mage_water_elemental_freeze::HandleImprovedFreeze);
    }
};

void AddSC_mage_spell_scripts()
{
    RegisterAuraScript(spell_mage_alter_time_aura);
    RegisterSpellScript(spell_mage_alter_time_active);
    RegisterSpellScript(spell_mage_arcane_barrage);
    RegisterSpellScript(spell_mage_arcane_charge_clear);
    RegisterSpellScript(spell_mage_arcane_explosion);
    RegisterAuraScript(spell_mage_blazing_barrier);
    RegisterAuraScript(spell_mage_burning_determination);
    RegisterSpellAndAuraScriptPair(spell_mage_cauterize, spell_mage_cauterize_AuraScript);
    RegisterSpellScript(spell_mage_cold_snap);
    RegisterSpellScript(spell_mage_cone_of_cold);
    RegisterSpellScript(spell_mage_conjure_refreshment);
    RegisterAuraScript(spell_mage_fingers_of_frost);
    RegisterAuraScript(spell_mage_ice_barrier);
    RegisterSpellScript(spell_mage_ice_block);
    RegisterSpellScript(spell_mage_ice_lance);
    RegisterSpellScript(spell_mage_ice_lance_damage);
    RegisterAuraScript(spell_mage_ignite);
    RegisterAuraScript(spell_mage_imp_mana_gems);
    RegisterSpellScript(spell_mage_living_bomb);
    RegisterSpellScript(spell_mage_living_bomb_explosion);
    RegisterAuraScript(spell_mage_living_bomb_periodic);
    RegisterSpellScript(spell_mage_polymorph_visual);
    RegisterAuraScript(spell_mage_prismatic_barrier);
    RegisterAuraScript(spell_mage_ring_of_frost);
    RegisterSpellAndAuraScriptPair(spell_mage_ring_of_frost_freeze, spell_mage_ring_of_frost_freeze_AuraScript);
    RegisterSpellScript(spell_mage_time_warp);
    RegisterAuraScript(spell_mage_touch_of_the_magi_aura);
    RegisterSpellScript(spell_mage_trigger_chilled);
    RegisterSpellScript(spell_mage_water_elemental_freeze);
}