using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;


using ServerCore; using ServerBase;


using SESSION_ID = System.Int32;
using WORLD_ID = System.UInt32;
using META_ID = System.UInt32;
using ENTITY_GUID = System.String;
using ACCOUNT_ID = System.String;
using OWNER_GUID = System.String;
using USER_GUID = System.String;
using CHARACTER_GUID = System.String;
using ITEM_GUID = System.String;
using UGC_NPC_META_GUID = System.String;


namespace ServerCommon
{
    public class UgcNpcItemAttribute : ItemAttributeBase
    {

        public UgcNpcItemAttribute(ItemBase owner, EntityBase ownerEntity)
            : base(owner, ownerEntity)
        {
        }

        public override IEntityAttributeTransactor onNewEntityAttributeTransactor()
        {
            var owner = getOwner() as ItemBase;
            ArgumentNullException.ThrowIfNull(owner, $"owner is null !!!");

            return new UgcNpcItemAttributeTransactor(owner);
        }

        public override ItemDoc onCreateDocBase()
        {
            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var root_parent = owner.getRootParent();
            NullReferenceCheckHelper.throwIfNull(root_parent, () => $"root_parent is null !!! - { owner.toBasicStringWithMaster()}");

            var ugc_npc_attribute = root_parent.getEntityAttribute<UgcNpcAttribute>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_attribute, () => $"ugc_npc_attribute is null !!! - {owner.toBasicString()}, {owner.toBasicStringWithMaster()}");

            var ugc_npc_meta_guid = ugc_npc_attribute.UgcNpcMetaGuid;

            return new ItemDoc(OwnerEntityType.UgcNpc, ugc_npc_meta_guid, ItemGuid);
        }

        public override EntityAttributeBase onCloned()
        {
            var item_base = getOwner() as ItemBase;
            NullReferenceCheckHelper.throwIfNull(item_base, () => $"item_base is null !!!");
            var root_parent = item_base.getRootParent();
            NullReferenceCheckHelper.throwIfNull(root_parent, () => $"root_parent is null !!! - {item_base.toBasicStringWithMaster()}");

            var parent = getEntityOfOwnerEntityType();
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {item_base.toBasicStringWithMaster()}");

            var cloned = new UgcNpcItemAttribute(item_base, parent);

            cloned.deepCopyFromBase(this);

            cloned.ItemGuid = ItemGuid;
            cloned.ItemMetaId = ItemMetaId;
            cloned.ItemStackCount = ItemStackCount;
            cloned.Level = Level;
            cloned.Attributes = Attributes.Select(x => x).ToList();
            cloned.EquipedIvenType = EquipedIvenType;
            cloned.EquipedPos = EquipedPos;

            return cloned;
        }
    }

    public class UgcNpcItemAttributeTransactor : ItemAttributeBaseTransactor<UgcNpcItemAttribute>
    {
        public UgcNpcItemAttributeTransactor(ItemBase owner)
            : base(owner)
        {
        }
    }
}