feat(core): add hooks for applying item mods (#18760)

src/server/game/Entities/Player/Player.cpp

@@ -6584,6 +6584,8 @@ void Player::_ApplyItemBonuses(ItemTemplate const* proto, uint8 slot, bool apply
 
             statType = proto->ItemStat[i].ItemStatType;
             val = proto->ItemStat[i].ItemStatValue;
+
+            sScriptMgr->OnApplyItemModsBefore(this, slot, apply, i, statType, val);
         }
 
         if (val == 0)

src/server/game/Entities/Player/PlayerStorage.cpp

@@ -4451,6 +4451,8 @@ void Player::ApplyEnchantment(Item* item, EnchantmentSlot slot, bool apply, bool
                         }
                     }
 
+                    sScriptMgr->OnApplyEnchantmentItemModsBefore(this, item, slot, apply, enchant_spell_id, enchant_amount);
+
                     LOG_DEBUG("entities.player.items", "Adding {} to stat nb {}", enchant_amount, enchant_spell_id);
                     switch (enchant_spell_id)
                     {

src/server/game/Scripting/ScriptDefines/PlayerScript.cpp

@@ -639,6 +639,16 @@ void ScriptMgr::OnCustomScalingStatValue(Player* player, ItemTemplate const* pro
     CALL_ENABLED_HOOKS(PlayerScript, PLAYERHOOK_ON_CUSTOM_SCALING_STAT_VALUE, script->OnCustomScalingStatValue(player, proto, statType, val, itemProtoStatNumber, ScalingStatValue, ssv));
 }
 
+void ScriptMgr::OnApplyItemModsBefore(Player* player, uint8 slot, bool apply, uint8 itemProtoStatNumber, uint32 statType, int32& val)
+{
+    CALL_ENABLED_HOOKS(PlayerScript, PLAYERHOOK_ON_APPLY_ITEM_MODS_BEFORE, script->OnApplyItemModsBefore(player, slot, apply, itemProtoStatNumber, statType, val));
+}
+
+void ScriptMgr::OnApplyEnchantmentItemModsBefore(Player* player, Item* item, EnchantmentSlot slot, bool apply, uint32 enchant_spell_id, uint32& enchant_amount)
+{
+    CALL_ENABLED_HOOKS(PlayerScript, PLAYERHOOK_ON_APPLY_ENCHANTMENT_ITEM_MODS_BEFORE, script->OnApplyEnchantmentItemModsBefore(player, item, slot, apply, enchant_spell_id, enchant_amount));
+}
+
 bool ScriptMgr::CanArmorDamageModifier(Player* player)
 {
     CALL_ENABLED_BOOLEAN_HOOKS(PlayerScript, PLAYERHOOK_CAN_ARMOR_DAMAGE_MODIFIER, !script->CanArmorDamageModifier(player));

src/server/game/Scripting/ScriptDefines/PlayerScript.h

@@ -146,6 +146,8 @@ enum PlayerHook
     PLAYERHOOK_ON_VICTIM_REWARD_AFTER,
     PLAYERHOOK_ON_CUSTOM_SCALING_STAT_VALUE_BEFORE,
     PLAYERHOOK_ON_CUSTOM_SCALING_STAT_VALUE,
+    PLAYERHOOK_ON_APPLY_ITEM_MODS_BEFORE,
+    PLAYERHOOK_ON_APPLY_ENCHANTMENT_ITEM_MODS_BEFORE,
     PLAYERHOOK_CAN_ARMOR_DAMAGE_MODIFIER,
     PLAYERHOOK_ON_GET_FERAL_AP_BONUS,
     PLAYERHOOK_CAN_APPLY_WEAPON_DEPENDENT_AURA_DAMAGE_MOD,
@@ -542,6 +544,10 @@ public:
 
     virtual void OnCustomScalingStatValue(Player* /*player*/, ItemTemplate const* /*proto*/, uint32& /*statType*/, int32& /*val*/, uint8 /*itemProtoStatNumber*/, uint32 /*ScalingStatValue*/, ScalingStatValuesEntry const* /*ssv*/) { }
 
+    virtual void OnApplyItemModsBefore(Player* /*player*/, uint8 /*slot*/, bool /*apply*/, uint8 /*itemProtoStatNumber*/, uint32 /*statType*/, int32& /*val*/) { }
+
+    virtual void OnApplyEnchantmentItemModsBefore(Player* /*player*/, Item* /*item*/, EnchantmentSlot /*slot*/, bool /*apply*/, uint32 /*enchant_spell_id*/, uint32& /*enchant_amount*/) { }
+
     [[nodiscard]] virtual bool CanArmorDamageModifier(Player* /*player*/) { return true; }
 
     virtual void OnGetFeralApBonus(Player* /*player*/, int32& /*feral_bonus*/, int32 /*dpsMod*/, ItemTemplate const* /*proto*/, ScalingStatValuesEntry const* /*ssv*/) { }

src/server/game/Scripting/ScriptMgr.h

@@ -412,6 +412,8 @@ public: /* PlayerScript */
     void OnVictimRewardAfter(Player* player, Player* victim, uint32& killer_title, uint32& victim_rank, float& honor_f);
     void OnCustomScalingStatValueBefore(Player* player, ItemTemplate const* proto, uint8 slot, bool apply, uint32& CustomScalingStatValue);
     void OnCustomScalingStatValue(Player* player, ItemTemplate const* proto, uint32& statType, int32& val, uint8 itemProtoStatNumber, uint32 ScalingStatValue, ScalingStatValuesEntry const* ssv);
+    void OnApplyItemModsBefore(Player* player, uint8 slot, bool apply, uint8 itemProtoStatNumber, uint32 statType, int32& val);
+    void OnApplyEnchantmentItemModsBefore(Player* player, Item* item, EnchantmentSlot slot, bool apply, uint32 enchant_spell_id, uint32& enchant_amount);
     bool CanArmorDamageModifier(Player* player);
     void OnGetFeralApBonus(Player* player, int32& feral_bonus, int32 dpsMod, ItemTemplate const* proto, ScalingStatValuesEntry const* ssv);
     bool CanApplyWeaponDependentAuraDamageMod(Player* player, Item* item, WeaponAttackType attackType, AuraEffect const* aura, bool apply);