using Amazon.S3.Model;
using ServerControlCenter;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;



using ServerCore; using ServerBase;



namespace ServerCommon.BusinessLogDomain
{
    public static class ItemBusinessLogHelper
    {
        public static (Result, ItemLogInfo?) toItemLogInfo( this ItemAttributeBase itemAttributeBase )
        {
            var try_pending_item_doc = itemAttributeBase.getTryPendingDocBase() as ItemDoc;
            NullReferenceCheckHelper.throwIfNull(try_pending_item_doc, () => $"try_pending_item_doc is null !!!");
            var item_attrib = try_pending_item_doc.getAttrib<ItemAttrib>();
            NullReferenceCheckHelper.throwIfNull(item_attrib, () => $"item_attrib is null !!! : {itemAttributeBase.toBasicString()}");

            var result = new Result();

            var item_meta_id = (int)itemAttributeBase.ItemMetaId;
            if (false == MetaData.Instance._ItemTable.TryGetValue(item_meta_id, out var found_item_meta_data))
            {
                var err_msg = $"Failed to TryGetValue() !!! : itemMetaId:{item_meta_id} - {itemAttributeBase.toBasicString()}";
                result.setFail(ServerErrorCode.ItemMetaDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null);
            }

            var log_item_info = new ItemLogInfo();
            log_item_info.setLogProperty( item_attrib.ItemGuid
                                        , try_pending_item_doc.getPK(), try_pending_item_doc.getSK()
                                        , item_attrib.OwnerEntityType, item_attrib.OwnerGuid
                                        , CountDeltaType.None, item_attrib.ItemStackCount, 0
                                        , item_attrib.ItemMetaId, found_item_meta_data.Name
                                        , item_attrib.Level, 0
                                        , found_item_meta_data.TypeLarge, found_item_meta_data.TypeSmall
                                        , itemAttributeBase.Attributes.Select(x => (int)x).ToList(), new List<int>() );

            return (result, log_item_info);
        }

        public static async Task<(Result, ItemLogInfo?)> toItemLogInfo4Create( this ItemDoc itemDoc )
        {
            var result = new Result();

            var item_attrib = itemDoc.getAttrib<ItemAttrib>();
            NullReferenceCheckHelper.throwIfNull(item_attrib, () => $"item_attrib is null !!!");

            var item_meta_id = (int)item_attrib.ItemMetaId;
            if (false == MetaData.Instance._ItemTable.TryGetValue(item_meta_id, out var found_item_meta_data))
            {
                var err_msg = $"Failed to TryGetValue() !!! : itemMetaId:{item_meta_id} - {item_attrib.toBasicString()}";
                result.setFail(ServerErrorCode.ItemMetaDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null);
            }

            var delta_stack_count = item_attrib.ItemStackCount;
            var delta_level = item_attrib.Level;

            var log_item_info = new ItemLogInfo();
            log_item_info.setLogProperty( item_attrib.ItemGuid
                                        , itemDoc.getPK(), itemDoc.getSK()
                                        , item_attrib.OwnerEntityType, item_attrib.OwnerGuid
                                        , CountDeltaType.Acquire, item_attrib.ItemStackCount, delta_stack_count
                                        , item_attrib.ItemMetaId, found_item_meta_data.Name
                                        , item_attrib.Level, delta_level
                                        , found_item_meta_data.TypeLarge, found_item_meta_data.TypeSmall
                                        , item_attrib.Attributes.Select(x => (int)x).ToList(), new List<int>() );

            return await Task.FromResult((result, log_item_info));
        }
    }
}