Core/Items: Fixed crash in selecting azerite essences

Port From (https://github.com/TrinityCore/TrinityCore/commit/bec4ed0f16d100f74c76e4aca06ed9ea42e21ec4)

Source/Game/Entities/Item/AzeriteItem.cs

@@ -167,14 +167,14 @@ namespace Game.Entities
                     selectedEssences.ModifyValue(selectedEssences.AzeriteEssenceID, i) = selectedEssenceData.AzeriteEssenceId[i];
                 }
 
-                if (owner.GetPrimarySpecialization() == selectedEssenceData.SpecializationId)
+                if (owner != null && owner.GetPrimarySpecialization() == selectedEssenceData.SpecializationId)
                     selectedEssences.ModifyValue(selectedEssences.Enabled).SetValue(1);
 
                 AddDynamicUpdateFieldValue(m_values.ModifyValue(m_azeriteItemData).ModifyValue(m_azeriteItemData.SelectedEssences), selectedEssences);
             }
 
             // add selected essences for current spec
-            if (GetSelectedAzeriteEssences() == null)
+            if (owner != null && GetSelectedAzeriteEssences() == null)
                 CreateSelectedAzeriteEssences(owner.GetPrimarySpecialization());
 
             if (needSave)
@@ -372,6 +372,14 @@ namespace Game.Entities
             return null;
         }
 
+        public void CreateSelectedAzeriteEssences(uint specializationId)
+        {
+            SelectedAzeriteEssences selectedEssences = new SelectedAzeriteEssences();
+            selectedEssences.ModifyValue(selectedEssences.SpecializationID).SetValue(specializationId);
+            selectedEssences.ModifyValue(selectedEssences.Enabled).SetValue(1);
+            AddDynamicUpdateFieldValue(m_values.ModifyValue(m_azeriteItemData).ModifyValue(m_azeriteItemData.SelectedEssences), selectedEssences);
+        }
+
         public void SetSelectedAzeriteEssences(uint specializationId)
         {
             int index = m_azeriteItemData.SelectedEssences.FindIndexIf(essences => { return essences.Enabled == 1; });
@@ -487,14 +495,6 @@ namespace Game.Entities
                     hasPreviousMilestone = false;
             }
         }
-
-        void CreateSelectedAzeriteEssences(uint specializationId)
-        {
-            var selectedEssences = new SelectedAzeriteEssences();
-            selectedEssences.ModifyValue(selectedEssences.SpecializationID).SetValue(specializationId);
-            selectedEssences.ModifyValue(selectedEssences.Enabled).SetValue(1);
-            AddDynamicUpdateFieldValue(m_values.ModifyValue(m_azeriteItemData).ModifyValue(m_azeriteItemData.SelectedEssences), selectedEssences);
-        }
     }
 
     public class AzeriteItemSelectedEssencesData

Source/Game/Entities/Item/Item.cs

@@ -570,7 +570,7 @@ namespace Game.Entities
                                         if (artifactPowerPicker != null)
                                         {
                                             PlayerConditionRecord playerCondition = CliDB.PlayerConditionStorage.LookupByKey(artifactPowerPicker.PlayerConditionID);
-                                            if (playerCondition == null || ConditionManager.IsPlayerMeetingCondition(owner, playerCondition))
+                                            if (playerCondition == null || (owner != null && ConditionManager.IsPlayerMeetingCondition(owner, playerCondition)))
                                                 if (artifactPower.Label == _bonusData.GemRelicType[e - EnchantmentSlot.Sock1])
                                                     power.CurrentRankWithBonus += (byte)enchant.EffectPointsMin[i];
                                         }
@@ -595,7 +595,7 @@ namespace Game.Entities
                 SetArtifactPower((ushort)power.ArtifactPowerId, power.PurchasedRank, (byte)(totalPurchasedRanks + 1));
             }
 
-            CheckArtifactRelicSlotUnlock(owner != null ? owner : GetOwner());
+            CheckArtifactRelicSlotUnlock(owner);
         }
 
         public void CheckArtifactRelicSlotUnlock(Player owner)

Source/Game/Entities/Unit/Unit.Spells.cs

@@ -1234,20 +1234,29 @@ namespace Game.Entities
 
         public virtual SpellInfo GetCastSpellInfo(SpellInfo spellInfo)
         {
-            var swaps = GetAuraEffectsByType(AuraType.OverrideActionbarSpells);
+            SpellInfo findMatchingAuraEffectIn(AuraType type)
-            var swaps2 = GetAuraEffectsByType(AuraType.OverrideActionbarSpellsTriggered);
+            {
-            if (!swaps2.Empty())
+                foreach (AuraEffect auraEffect in GetAuraEffectsByType(type))
-                swaps.AddRange(swaps2);
+                {
+                    bool matches = auraEffect.GetMiscValue() != 0 ? auraEffect.GetMiscValue() == spellInfo.Id : auraEffect.IsAffectingSpell(spellInfo);
+                    if (matches)
+                    {
+                        SpellInfo info = Global.SpellMgr.GetSpellInfo((uint)auraEffect.GetAmount());
+                        if (info != null)
+                            return info;
+                    }
+                }
 
-            foreach (AuraEffect auraEffect in swaps)
+                return null;
-            {
+            }
-                if (auraEffect.GetMiscValue() == spellInfo.Id || auraEffect.IsAffectingSpell(spellInfo))
+
-                {
+            SpellInfo newInfo = findMatchingAuraEffectIn(AuraType.OverrideActionbarSpells);
-                    SpellInfo newInfo = Global.SpellMgr.GetSpellInfo((uint)auraEffect.GetAmount());
+            if (newInfo != null)
+                return newInfo;
+
+            newInfo = findMatchingAuraEffectIn(AuraType.OverrideActionbarSpellsTriggered);
             if (newInfo != null)
                 return newInfo;
-                }
-            }
 
             return spellInfo;
         }

Source/Game/Handlers/AzeriteHandler.cs

@@ -91,7 +91,7 @@ namespace Game
 
             SelectedAzeriteEssences selectedEssences = azeriteItem.GetSelectedAzeriteEssences();
             // essence is already in that slot, nothing to do
-            if (selectedEssences.AzeriteEssenceID[azeriteEssenceActivateEssence.Slot] == azeriteEssenceActivateEssence.AzeriteEssenceID)
+            if (selectedEssences != null && selectedEssences.AzeriteEssenceID[azeriteEssenceActivateEssence.Slot] == azeriteEssenceActivateEssence.AzeriteEssenceID)
                 return;
 
             uint rank = azeriteItem.GetEssenceRank(azeriteEssenceActivateEssence.AzeriteEssenceID);
@@ -127,6 +127,8 @@ namespace Game
                 return;
             }
 
+            if (selectedEssences != null)
+            {
                 // need to remove selected essence from another slot if selected
                 int removeEssenceFromSlot = -1;
                 for (int slot = 0; slot < SharedConst.MaxAzeriteEssenceSlot; ++slot)
@@ -150,6 +152,7 @@ namespace Game
                     }
                 }
 
+
                 if (removeEssenceFromSlot != -1)
                 {
                     _player.ApplyAzeriteEssence(azeriteItem, selectedEssences.AzeriteEssenceID[removeEssenceFromSlot], SharedConst.MaxAzeriteEssenceRank,
@@ -162,11 +165,15 @@ namespace Game
                     _player.ApplyAzeriteEssence(azeriteItem, selectedEssences.AzeriteEssenceID[azeriteEssenceActivateEssence.Slot], SharedConst.MaxAzeriteEssenceRank,
                         (AzeriteItemMilestoneType)Global.DB2Mgr.GetAzeriteItemMilestonePower(azeriteEssenceActivateEssence.Slot).Type == AzeriteItemMilestoneType.MajorEssence, false);
                 }
+            }
+            else
+                azeriteItem.CreateSelectedAzeriteEssences(_player.GetPrimarySpecialization());
+
+            azeriteItem.SetSelectedAzeriteEssence(azeriteEssenceActivateEssence.Slot, azeriteEssenceActivateEssence.AzeriteEssenceID);
 
             _player.ApplyAzeriteEssence(azeriteItem, azeriteEssenceActivateEssence.AzeriteEssenceID, rank,
                 (AzeriteItemMilestoneType)Global.DB2Mgr.GetAzeriteItemMilestonePower(azeriteEssenceActivateEssence.Slot).Type == AzeriteItemMilestoneType.MajorEssence, true);
 
-            azeriteItem.SetSelectedAzeriteEssence(azeriteEssenceActivateEssence.Slot, azeriteEssenceActivateEssence.AzeriteEssenceID);
             azeriteItem.SetState(ItemUpdateState.Changed, _player);
         }
     }