/*
 * Originally written by Xinef - Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
*/

#include "ScriptMgr.h"
#include "ScriptedCreature.h"
#include "drak_tharon_keep.h"

enum Yells
{
    SAY_AGGRO                           = 0,
    SAY_KILL                            = 1,
    SAY_DEATH                           = 2,
    SAY_SUMMONING_ADDS                  = 3,
    SAY_ARCANE_FIELD                    = 4,
    EMOTE_SUMMONING_ADDS                = 5
};

enum Spells
{
    SPELL_BEAM_CHANNEL                  = 52106,
    SPELL_ARCANE_BLAST                  = 49198,
    SPELL_ARCANE_FIELD                  = 47346,
    SPELL_SUMMON_FETID_TROLL_CORPSE     = 49103,
    SPELL_SUMMON_HULKING_CORPSE         = 49104,
    SPELL_SUMMON_RISEN_SHADOWCASTER     = 49105,
    SPELL_SUMMON_CRYSTAL_HANDLER        = 49179,
    SPELL_DESPAWN_CRYSTAL_HANDLER       = 51403,

    SPELL_SUMMON_MINIONS                = 59910,
    SPELL_COPY_OF_SUMMON_MINIONS        = 59933,
    SPELL_BLIZZARD                      = 49034,
    SPELL_FROSTBOLT                     = 49037,
    SPELL_TOUCH_OF_MISERY               = 50090
};

enum Misc
{
    NPC_CRYSTAL_CHANNEL_TARGET              = 26712,
    NPC_CRYSTAL_HANDLER                     = 26627,

    EVENT_SUMMON_FETID_TROLL                = 1,
    EVENT_SUMMON_SHADOWCASTER               = 2,
    EVENT_SUMMON_HULKING_CORPSE             = 3,
    EVENT_SUMMON_CRYSTAL_HANDLER            = 4,
    EVENT_CAST_OFFENSIVE_SPELL              = 5,
    EVENT_KILL_TALK                         = 6,
    EVENT_CHECK_PHASE                       = 7,
    EVENT_SPELL_SUMMON_MINIONS              = 8
};

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

        struct boss_novosAI : public BossAI
        {
            boss_novosAI(Creature* creature) : BossAI(creature, DATA_NOVOS)
            {
            }

            void Reset()
            {
                BossAI::Reset();
                instance->SetBossState(DATA_NOVOS_CRYSTALS, IN_PROGRESS);
                instance->SetBossState(DATA_NOVOS_CRYSTALS, NOT_STARTED);
                _crystalCounter = 0;

                me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_DISABLE_MOVE);
                me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);

                _achievement = true;
            }

            uint32 GetData(uint32 data) const
            {
                if (data == me->GetEntry())
                    return uint32(_achievement);
                return 0;
            }

            void SetData(uint32 type, uint32)
            {
                if (type == me->GetEntry())
                    _achievement = false;
            }

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

            void EnterCombat(Unit* who)
            {
                Talk(SAY_AGGRO);
                BossAI::EnterCombat(who);

                events.ScheduleEvent(EVENT_SUMMON_FETID_TROLL, 3000);
                events.ScheduleEvent(EVENT_SUMMON_SHADOWCASTER, 9000);
                events.ScheduleEvent(EVENT_SUMMON_HULKING_CORPSE, 30000);
                events.ScheduleEvent(EVENT_SUMMON_CRYSTAL_HANDLER, 20000);
                events.ScheduleEvent(EVENT_CHECK_PHASE, 80000);

                me->CastSpell(me, SPELL_ARCANE_BLAST, true);
                me->CastSpell(me, SPELL_ARCANE_FIELD, true);
                me->CastSpell(me, SPELL_DESPAWN_CRYSTAL_HANDLER, true);
                me->SummonCreature(NPC_CRYSTAL_CHANNEL_TARGET, -378.40f, -813.13f, 59.74f, 0.0f);

                me->SetUInt64Value(UNIT_FIELD_TARGET, 0);
                me->RemoveAllAuras();
                me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
            }

            void JustDied(Unit* killer)
            {
                Talk(SAY_DEATH);
                BossAI::JustDied(killer);
                instance->SetBossState(DATA_NOVOS_CRYSTALS, DONE);
            }

            void KilledUnit(Unit*  /*victim*/)
            {
                if (events.GetNextEventTime(EVENT_KILL_TALK) == 0)
                {
                    Talk(SAY_KILL);
                    events.ScheduleEvent(EVENT_KILL_TALK, 6000);
                }
            }

            void JustSummoned(Creature* summon)
            {
                summons.Summon(summon);
                if (me->HasFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE) && summon->GetEntry() != NPC_CRYSTAL_CHANNEL_TARGET && summon->GetEntry() != NPC_CRYSTAL_HANDLER)
                    summon->SetReactState(REACT_DEFENSIVE);
                else if (summon->GetEntry() != NPC_CRYSTAL_CHANNEL_TARGET)
                    summon->SetInCombatWithZone();
            }

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

                events.Update(diff);
                switch (events.ExecuteEvent())
                {
                    case EVENT_SUMMON_FETID_TROLL:
                        if (Creature* trigger = summons.GetCreatureWithEntry(NPC_CRYSTAL_CHANNEL_TARGET))
                            trigger->CastSpell(trigger, SPELL_SUMMON_FETID_TROLL_CORPSE, true, NULL, NULL, me->GetGUID());
                        events.ScheduleEvent(EVENT_SUMMON_FETID_TROLL, 3000);
                        break;
                    case EVENT_SUMMON_HULKING_CORPSE:
                        if (Creature* trigger = summons.GetCreatureWithEntry(NPC_CRYSTAL_CHANNEL_TARGET))
                            trigger->CastSpell(trigger, SPELL_SUMMON_HULKING_CORPSE, true, NULL, NULL, me->GetGUID());
                        events.ScheduleEvent(EVENT_SUMMON_HULKING_CORPSE, 30000);
                        break;
                    case EVENT_SUMMON_SHADOWCASTER:
                        if (Creature* trigger = summons.GetCreatureWithEntry(NPC_CRYSTAL_CHANNEL_TARGET))
                            trigger->CastSpell(trigger, SPELL_SUMMON_RISEN_SHADOWCASTER, true, NULL, NULL, me->GetGUID());
                        events.ScheduleEvent(EVENT_SUMMON_SHADOWCASTER, 10000);
                        break;
                    case EVENT_SUMMON_CRYSTAL_HANDLER:
                        if (_crystalCounter++ < 4)
                        {
                            Talk(SAY_SUMMONING_ADDS);
                            Talk(EMOTE_SUMMONING_ADDS);
                            if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 60.0f))
                                target->CastSpell(target, SPELL_SUMMON_CRYSTAL_HANDLER, true, NULL, NULL, me->GetGUID());
                            events.ScheduleEvent(EVENT_SUMMON_CRYSTAL_HANDLER, 20000);
                        }
                        break;
                    case EVENT_CHECK_PHASE:
                        if (me->HasAura(SPELL_BEAM_CHANNEL))
                        {
                            events.ScheduleEvent(EVENT_CHECK_PHASE, 2000);
                            break;
                        }
                        events.Reset();
                        events.ScheduleEvent(EVENT_CAST_OFFENSIVE_SPELL, 3000);
                        events.ScheduleEvent(EVENT_SPELL_SUMMON_MINIONS, 10000);
                        me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                        me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                        me->InterruptNonMeleeSpells(false);
                        break;
                    case EVENT_CAST_OFFENSIVE_SPELL:
                        if (!me->HasUnitState(UNIT_STATE_CASTING))
                            if (Unit *target = SelectTarget(SELECT_TARGET_RANDOM, 0, 100, true))
                                me->CastSpell(target, RAND(SPELL_BLIZZARD,SPELL_FROSTBOLT,SPELL_TOUCH_OF_MISERY), false);

                        events.ScheduleEvent(EVENT_CAST_OFFENSIVE_SPELL, 500);
                        break;
                    case EVENT_SPELL_SUMMON_MINIONS:
                        if (me->HasUnitState(UNIT_STATE_CASTING))
                        {
                            me->CastSpell(me, SPELL_SUMMON_MINIONS, false);
                            events.ScheduleEvent(EVENT_SPELL_SUMMON_MINIONS, 15000);
                            break;
                        }
                        events.ScheduleEvent(EVENT_SPELL_SUMMON_MINIONS, 500);
                        break;
                }

                EnterEvadeIfOutOfCombatArea();
            }
                    
            bool CheckEvadeIfOutOfCombatArea() const
            {
                return !SelectTargetFromPlayerList(80.0f);
            }

        private:
            uint8 _crystalCounter;
            bool _achievement;
        };

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

class spell_novos_despawn_crystal_handler : public SpellScriptLoader
{
    public:
        spell_novos_despawn_crystal_handler() : SpellScriptLoader("spell_novos_despawn_crystal_handler") { }

        class spell_novos_despawn_crystal_handler_SpellScript : public SpellScript
        {
            PrepareSpellScript(spell_novos_despawn_crystal_handler_SpellScript);

            void HandleScriptEffect(SpellEffIndex /*effIndex*/)
            {
                if (Unit* target = GetHitUnit())
                    target->CastSpell(GetCaster(), SPELL_BEAM_CHANNEL, true);
            }

            void Register()
            {
                OnEffectHitTarget += SpellEffectFn(spell_novos_despawn_crystal_handler_SpellScript::HandleScriptEffect, EFFECT_0, SPELL_EFFECT_SCRIPT_EFFECT);
            }
        };

        SpellScript* GetSpellScript() const
        {
            return new spell_novos_despawn_crystal_handler_SpellScript();
        }
};

class spell_novos_crystal_handler_death : public SpellScriptLoader
{
    public:
        spell_novos_crystal_handler_death() : SpellScriptLoader("spell_novos_crystal_handler_death") { }

        class spell_novos_crystal_handler_death_AuraScript : public AuraScript
        {
            PrepareAuraScript(spell_novos_crystal_handler_death_AuraScript)

            void HandleEffectApply(AuraEffect const*  /*aurEff*/, AuraEffectHandleModes /*mode*/)
            {
                GetUnitOwner()->InterruptNonMeleeSpells(false);
                if (GameObject* crystal = GetUnitOwner()->FindNearestGameObjectOfType(GAMEOBJECT_TYPE_DOOR, 5.0f))
                    crystal->SetGoState(GO_STATE_READY);
            }

            void Register()
            {
                OnEffectApply += AuraEffectApplyFn(spell_novos_crystal_handler_death_AuraScript::HandleEffectApply, EFFECT_0, SPELL_AURA_DUMMY, AURA_EFFECT_HANDLE_REAL);
            }
        };

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

class spell_novos_summon_minions : public SpellScriptLoader
{
    public:
        spell_novos_summon_minions() : SpellScriptLoader("spell_novos_summon_minions") { }

        class spell_novos_summon_minions_SpellScript : public SpellScript
        {
            PrepareSpellScript(spell_novos_summon_minions_SpellScript);

            void HandleScript(SpellEffIndex /*effIndex*/)
            {
                for (uint8 i = 0; i < 4; ++i)
                    GetCaster()->CastSpell((Unit*)NULL, SPELL_COPY_OF_SUMMON_MINIONS, true);
            }

            void Register()
            {
                OnEffectHitTarget += SpellEffectFn(spell_novos_summon_minions_SpellScript::HandleScript, EFFECT_0, SPELL_EFFECT_SCRIPT_EFFECT);
            }
        };

        SpellScript* GetSpellScript() const
        {
            return new spell_novos_summon_minions_SpellScript();
        }
};

class achievement_oh_novos : public AchievementCriteriaScript
{
    public:
        achievement_oh_novos() : AchievementCriteriaScript("achievement_oh_novos") { }

        bool OnCheck(Player* /*player*/, Unit* target) 
        {
            return target && target->GetAI()->GetData(target->GetEntry());
        }
};

void AddSC_boss_novos()
{
    new boss_novos();
    new spell_novos_despawn_crystal_handler();
    new spell_novos_crystal_handler_death();
    new spell_novos_summon_minions();
    new achievement_oh_novos();
}
