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


using Newtonsoft.Json;
using System.Xml.Linq;



using ServerCore;
using ServerBase;



using SESSION_ID = System.Int32;
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;



namespace ServerCommon;

public class ItemAttrib : AttribBase
{
    [JsonProperty("item_guid")]
    public ITEM_GUID ItemGuid { get; set; } = string.Empty;

    [JsonProperty("item_meta_id")]
    public META_ID ItemMetaId { get; set; } = 0;

    [JsonProperty("owner_guid")]
    public OWNER_GUID OwnerGuid { get; set; } = string.Empty;

    [JsonProperty("owner_entity_type")]
    public OwnerEntityType OwnerEntityType { get; set; } = OwnerEntityType.None;

    [JsonProperty("item_stack_count")]
    public UInt16 ItemStackCount { get; set; } = 0;

    [JsonProperty("level")]
    public UInt16 Level { get; set; } = 0;

    [JsonProperty("attributes")]
    public List<UInt16> Attributes { get; set; } = new();

    [JsonProperty("equiped_inven_type")]
    public InvenEquipType EquipedIvenType { get; set; } = InvenEquipType.None;

    [JsonProperty("equiped_pos")]
    public UInt16 EquipedPos { get; set; } = 0;

    public ItemAttrib()
         : base(typeof(ItemAttrib).Name)
    { }

    public ItemAttrib(string docType, bool isSaveToJsonInDb = true)
         : base(docType, isSaveToJsonInDb)
    { }
}

//=============================================================================================
// Primary Key
// PK(Partition Key)    : "item#owner_guid" [owner_guid : user_guid, ugc_npc_meta_guid]
// SK(Sort Key)         : "item_guid"
// DocType              : ItemDoc
// ItemAttrib           : {}
// ...
//=============================================================================================
public class ItemDoc : DynamoDbDocBase, ICopyDocFromEntityAttribute
{
    private static string getPrefixOfPK() { return "item#"; }
    private static string getPrefixOfSK() { return ""; }

    public ItemDoc()
        : base(typeof(ItemDoc).Name)
    {
        appendAttribWrapperAll();
    }

    public ItemDoc(string docType)
        : base(docType)
    {
    }

    public ItemDoc(OwnerEntityType ownerEntityType, string ownerGuid, string itemGuid)
        : base(typeof(ItemDoc).Name)
    {
        setCombinationKeyForPK(ownerGuid);
        setCombinationKeyForSK(itemGuid);

        appendAttribWrapperAll();

        fillUpPrimaryKey(onMakePK(), onMakeSK());

        var doc_item_attrib = getAttrib<ItemAttrib>();
        NullReferenceCheckHelper.throwIfNull(doc_item_attrib, () => $"doc_item_attrib is null !!! - itemGuid:{itemGuid}, ownerGuid:{ownerGuid}, ownerEntityType:{ownerEntityType}");

        doc_item_attrib.OwnerGuid = ownerGuid;
        doc_item_attrib.OwnerEntityType = ownerEntityType;
        doc_item_attrib.ItemGuid = itemGuid;
    }

    private void appendAttribWrapperAll()
    {
        appendAttribWrapper(new AttribWrapper<ItemAttrib>());
    }

    protected override string onGetPrefixOfPK()
    {
        return getPrefixOfPK();
    }

    protected override string onGetPrefixOfSK()
    {
        return getPrefixOfSK();
    }

    protected override ServerErrorCode onCheckAndSetSK(string sortKey)
    {
        getPrimaryKey().fillUpSK(sortKey);
        setCombinationKeyForSK(sortKey);

        return ServerErrorCode.Success;
    }

    // override ICopyDocFromEntityAttribute
    public bool copyDocFromEntityAttribute(EntityAttributeBase entityAttributeBase)
    {
        ArgumentNullReferenceCheckHelper.throwIfNull(entityAttributeBase, () => $"entityAttributeBase is null !!! - {toBasicString()}");

        var item_attribute = entityAttributeBase as ItemAttributeBase;
        if(null == item_attribute)
        {
            return false;
        }

        var to_copy_doc_item_attrib = getAttrib<ItemAttrib>();
        NullReferenceCheckHelper.throwIfNull(to_copy_doc_item_attrib, () => $"to_copy_doc_item_attrib is null !!! - {toBasicString()}");

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


        return true;
    }
}