fix(Scripts/TempleOfAhnQiraj): Ouro double spawn in 3rd phase, interrupt immunity (#13405)

data/sql/updates/pending_db_world/rev_1665712684667487900.sql

@@ -0,0 +1,2 @@
+--
+UPDATE `creature_template` SET `mechanic_immune_mask` = `mechanic_immune_mask`|33554432 WHERE `entry` = 15517;

src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_ouro.cpp

@@ -78,8 +78,15 @@ struct npc_ouro_spawner : public ScriptedAI
         // Spawn Ouro on LoS check
         if (!hasSummoned && who->GetTypeId() == TYPEID_PLAYER && me->IsWithinDistInMap(who, 40.0f) && !who->ToPlayer()->IsGameMaster())
         {
-            DoCastSelf(SPELL_SUMMON_OURO);
-            hasSummoned = true;
+            if (InstanceScript* instance = me->GetInstanceScript())
+            {
+                Creature* ouro = instance->GetCreature(DATA_OURO);
+                if (instance->GetBossState(DATA_OURO) != IN_PROGRESS && !ouro)
+                {
+                    DoCastSelf(SPELL_SUMMON_OURO);
+                    hasSummoned = true;
+                }
+            }
         }
 
         ScriptedAI::MoveInLineOfSight(who);
@@ -129,7 +136,7 @@ struct boss_ouro : public BossAI
 
     void Submerge()
     {
-        if (_enraged)
+        if (_enraged || _submerged)
             return;
 
         me->AttackStop();
@@ -209,6 +216,9 @@ struct boss_ouro : public BossAI
                 })
             .Schedule(3s, GROUP_PHASE_TRANSITION, [this](TaskContext context)
                 {
+                    if (_enraged)
+                        return;
+
                     if (!IsPlayerWithinMeleeRange() && !_submerged)
                     {
                         if (_submergeMelee < 10)
@@ -217,8 +227,7 @@ struct boss_ouro : public BossAI
                         }
                         else
                         {
-                            if (!_enraged)
-                                Submerge();
+                            Submerge();
                             _submergeMelee = 0;
                         }
                     }

src/server/scripts/Kalimdor/TempleOfAhnQiraj/instance_temple_of_ahnqiraj.cpp

@@ -30,6 +30,7 @@ ObjectData const creatureData[] =
     { NPC_SARTURA, DATA_SARTURA },
     { NPC_CTHUN, DATA_CTHUN },
     { NPC_EYE_OF_CTHUN, DATA_EYE_OF_CTHUN },
+    { NPC_OURO, DATA_OURO },
     { NPC_OURO_SPAWNER, DATA_OURO_SPAWNER },
     { NPC_MASTERS_EYE, DATA_MASTERS_EYE },
     { NPC_VEKLOR, DATA_VEKLOR },