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


using Amazon.S3.Model;
using Newtonsoft.Json;


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_STRING = 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 AppearanceCustomizeAttribute : EntityAttributeBase, ICopyEntityAttributeFromDoc, IMergeWithEntityAttribute
    {
        [JsonProperty]
        public Int32 BasicStyle { get; set; } = 0;
        [JsonProperty]
        public Int32 BodyShape { get; set; } = 0;
        [JsonProperty]
        public Int32 HairStyle { get; set; } = 0;

        public List<Int32> CustomValues { get; set; } = new();



        public AppearanceCustomizeAttribute(EntityBase owner)
            : base(owner, owner)
        {
        }

        public override void onClear()
        {
            BasicStyle = 0;
            BodyShape = 0;
            HairStyle = 0;
            CustomValues.Clear();

            getAttributeState().reset();
        }

        public override EntityAttributeBase onCloned()
        {
            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var cloned = new AppearanceCustomizeAttribute(owner);
            cloned.deepCopyFromBase(this);

            cloned.BasicStyle = BasicStyle;
            cloned.BodyShape = BodyShape;
            cloned.HairStyle = HairStyle;
            cloned.CustomValues = CustomValues;

            return cloned;
        }

        public override IEntityAttributeTransactor onNewEntityAttributeTransactor()
        {
            return new AppearanceCustomizeAttributeTransactor(getOwner());
        }

        public override async Task<(Result, DynamoDbDocBase?)> toDocBase(bool isForQuery = true)
        {
            var result = new Result();

            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            //=====================================================================================
            // Attribute => Doc
            //=====================================================================================
            var try_pending_doc = getTryPendingDocBase() as AppearanceCustomizeDoc;
            if (null == try_pending_doc)
            {
                (result, var owner_entity_type, var owner_guid) = onToOwnerEntity4Db(owner);
                if(result.isFail())
                {
                    return (result, null);
                }

                var to_copy_doc = new AppearanceCustomizeDoc(owner_entity_type, owner_guid);

                var origin_doc = getOriginDocBase<AppearanceCustomizeAttribute>();
                if (null != origin_doc)
                {
                    to_copy_doc.copyTimestampsFromOriginDocBase(origin_doc);
                }

                try_pending_doc = to_copy_doc;

                setTryPendingDocBase(try_pending_doc);
            }

            var to_copy_doc_attrib = try_pending_doc.getAttrib<AppearanceCustomizeAttrib>();
            NullReferenceCheckHelper.throwIfNull(to_copy_doc_attrib, () => $"to_copy_doc_attrib is null !!!");
            
            to_copy_doc_attrib.BasicStyle = BasicStyle;
            to_copy_doc_attrib.BodyShape = BodyShape;
            to_copy_doc_attrib.HairStyle = HairStyle;
            to_copy_doc_attrib.CustomValues = CustomValues;

            if(false == isForQuery)
            {
                return (result, try_pending_doc);
            }

            //=====================================================================================
            // Doc QueryType 반영
            //=====================================================================================
            (result, var to_query_doc) = await applyDoc4Query(try_pending_doc);
            if(result.isFail())
            {
                return (result, null);
            }
            NullReferenceCheckHelper.throwIfNull(to_query_doc, () => $"to_query_doc is null !!!");

            return (result, to_query_doc);
        }

        public override (Result, OwnerEntityType, OWNER_GUID) onToOwnerEntity4Db(EntityBase ownerEntity)
        {
            var result = new Result();

            var owner_entity_type = ownerEntity.getEntityType().toOwnerEntityType();
            if(OwnerEntityType.None == owner_entity_type)
            {
                return (result, OwnerEntityType.None, string.Empty);
            }

            return (result, owner_entity_type, ownerEntity.onGetDbGuid());
        }

        public Result onMerge(EntityAttributeBase otherEntityAttribute)
        {
            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var result = new Result();
            var err_msg = string.Empty;

            if (null == otherEntityAttribute)
            {
                err_msg = $"Invalid Param !!!, otherEntityAttribute is null";
                result.setFail(ServerErrorCode.FunctionParamNull, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            //=====================================================================================
            // OtherAttribute => Attribute
            //=====================================================================================
            var other_appearance_customize_attribute = otherEntityAttribute as AppearanceCustomizeAttribute;
            if (null == other_appearance_customize_attribute) 
            {
                err_msg = $"Failed to cast AppearanceCustomizeAttribute !!!, other_appearance_customize_attribute is null";
                result.setFail(ServerErrorCode.ClassTypeCastIsNull, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            BasicStyle = other_appearance_customize_attribute.BasicStyle;
            BodyShape = other_appearance_customize_attribute.BodyShape;
            HairStyle = other_appearance_customize_attribute.HairStyle;
            CustomValues = other_appearance_customize_attribute.CustomValues;

            //=====================================================================================
            // Attribute Try Pending Doc => Origin Doc
            //=====================================================================================
            var try_pending_doc = other_appearance_customize_attribute.getTryPendingDocBase() as AppearanceCustomizeDoc;
            if (null != try_pending_doc)
            {
                other_appearance_customize_attribute.resetTryPendingDocBase();

                syncOriginDocBaseWithNewDoc<AppearanceCustomizeAttribute>(try_pending_doc);
            }

            var origin_doc_base = getOriginDocBase<AppearanceCustomizeAttribute>();
            if(null == origin_doc_base)
            {
                // DB 에 저장되어 있지 않는 경우 OriginDoc은 null 이다 !!!
                return result;
            }

            var appearance_customize_attrib = origin_doc_base.getAttrib<AppearanceCustomizeAttrib>();
            NullReferenceCheckHelper.throwIfNull(appearance_customize_attrib, () => $"appearance_customize_attrib is null !!! - {owner.toBasicString()}");

            appearance_customize_attrib.BasicStyle = BasicStyle;
            appearance_customize_attrib.BodyShape = BodyShape;
            appearance_customize_attrib.HairStyle = HairStyle;
            appearance_customize_attrib.CustomValues = CustomValues;

            return result;
        }

        public bool copyEntityAttributeFromDoc(DynamoDbDocBase? docBase)
        {
            var err_msg = string.Empty;

            var to_cast_string = typeof(AppearanceCustomizeDoc).Name;

            var appearance_customize_doc = docBase as AppearanceCustomizeDoc;
            if (null == appearance_customize_doc)
            {
                err_msg = $"Failed to copyEntityAttributeFromDoc() !!!, appearance_customize_doc is null :{to_cast_string}";
                Log.getLogger().error(err_msg);
                return false;
            }

            //=====================================================================================
            // New Doc => Origin Doc
            //=====================================================================================
            syncOriginDocBaseWithNewDoc<AppearanceCustomizeAttribute>(appearance_customize_doc);

            //=====================================================================================
            // Doc => Attribute
            //=====================================================================================
            var appearance_customize_attrib = appearance_customize_doc.getAttrib<AppearanceCustomizeAttrib>();
            NullReferenceCheckHelper.throwIfNull(appearance_customize_attrib, () => $"appearance_customize_attrib is null !!! - {toBasicString()}");

            BasicStyle = appearance_customize_attrib.BasicStyle;
            BodyShape = appearance_customize_attrib.BodyShape;
            HairStyle = appearance_customize_attrib.HairStyle;
            CustomValues = appearance_customize_attrib.CustomValues;

            return true;
        }
    }

    public class AppearanceCustomizeAttributeTransactor : EntityAttributeTransactorBase<AppearanceCustomizeAttribute>, ICopyEntityAttributeTransactorFromEntityAttribute
    {
        public AppearanceCustomizeAttributeTransactor(EntityBase owner)
            : base(owner)
        { 
        }

        public bool copyEntityAttributeTransactorFromEntityAttribute(EntityAttributeBase entityAttributeBase)
        {
            ArgumentNullReferenceCheckHelper.throwIfNull(entityAttributeBase, () => $"entityAttributeBase is null !!!");

            var err_msg = string.Empty;

            var to_cast_string = typeof(AppearanceCustomizeAttribute).Name;

            var copy_from_appearance_customize_attribute = entityAttributeBase as AppearanceCustomizeAttribute;
            if (null == copy_from_appearance_customize_attribute)
            {
                err_msg = $"Failed to copyEntityAttributeTransactorFromEntityAttribute() !!!, copy_from_appearance_customize_attribute is null :{to_cast_string}";
                Log.getLogger().error(err_msg);
                return false;
            }

            var copy_to_appearance_customize_attribute = getClonedEntityAttribute() as AppearanceCustomizeAttribute;
            if (null == copy_to_appearance_customize_attribute)
            {
                err_msg = $"Failed to copyEntityAttributeTransactorFromEntityAttribute() !!!, copy_to_appearance_customize_attribute is null :{to_cast_string}";
                Log.getLogger().error(err_msg);
                return false;
            }

            copy_to_appearance_customize_attribute.BasicStyle = copy_from_appearance_customize_attribute.BasicStyle;
            copy_to_appearance_customize_attribute.BodyShape = copy_from_appearance_customize_attribute.BodyShape;
            copy_to_appearance_customize_attribute.HairStyle = copy_from_appearance_customize_attribute.HairStyle;
            copy_to_appearance_customize_attribute.CustomValues = copy_from_appearance_customize_attribute.CustomValues.ToList();

            return true;
        }
    }
}