using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;


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 = System.String;
using OWNER_GUID = System.String;
using USER_GUID = System.String;
using CHARACTER_GUID = System.String;
using ITEM_GUID = System.String;
using ServerControlCenter;


namespace ServerCommon
{
    public class CharacterAttribute : EntityAttributeBase, ICopyEntityAttributeFromMeta, ICopyEntityAttributeFromDoc, IMergeWithEntityAttribute
    {
        public class AppearanceProfile
        {
            public UInt32 BasicStyle { get; set; } = 0;

            public UInt32 BodyShape { get; set; } = 0;

            public UInt32 HairStyle { get; set; } = 0;

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

            // 캐릭터 외형 커스터마이징 절차 완료 여부를 설정 한다. 서버 주도로 관리되어야 하는 정보 !!!
            public bool IsCustomCompleted { get; set; } = false;

            public void reset()
            {
                BasicStyle = 0;
                BodyShape = 0;
                HairStyle = 0;
                CustomValues.Clear();
                IsCustomCompleted = false;
            }

            public object Clone()
            {
                var clone = new AppearanceProfile();
                clone.BasicStyle = BasicStyle;
                clone.BodyShape = BodyShape;
                clone.HairStyle = HairStyle;
                clone.CustomValues = CustomValues.Select(x => x).ToList();
                clone.IsCustomCompleted = IsCustomCompleted;

                return clone;
            }

            public void copyFromAppearanceProfile(CharacterBaseAttrib.AppearanceProfile docAttrib)
            {
                BasicStyle = docAttrib.BasicStyle;
                BodyShape = docAttrib.BodyShape;
                HairStyle = docAttrib.HairStyle;
                CustomValues = docAttrib.CustomValues.Select(x => x).ToList();
                IsCustomCompleted = docAttrib.IsCustomCompleted;
            }
        }

        [JsonProperty]
        public CHARACTER_GUID CharacterGuid { get; set; } = string.Empty;


        public EntityStateInfo StateInfo { get; set; } = new();

        public AppearanceProfile AppearanceProfileValue { get; set; } = new();


        public CharacterAttribute(EntityBase owner, EntityBase entityOfOwnerEntityType)
            : base(owner, entityOfOwnerEntityType)
        {
        }

        public override void newEntityAttribute()
        {
            CharacterGuid = System.Guid.NewGuid().ToString("N");
            base.newEntityAttribute();
        }

        public override void onClear()
        {
            CharacterGuid = string.Empty;

            AppearanceProfileValue.reset();

            getAttributeState().reset();
        }

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

            var entity_of_owner_entity_type = getEntityOfOwnerEntityType();
            NullReferenceCheckHelper.throwIfNull(entity_of_owner_entity_type, () => $"entity_of_owner_entity_type is null !!!");
            var cloned = new CharacterAttribute(owner, entity_of_owner_entity_type);

            cloned.CharacterGuid = CharacterGuid;
            var cloned_appearance_profile = (AppearanceProfile)AppearanceProfileValue.Clone();
            NullReferenceCheckHelper.throwIfNull(cloned_appearance_profile, () => $"parent cloned_appearance_profile null !!! - {owner.toBasicString()}");

            cloned.AppearanceProfileValue = cloned_appearance_profile;

            return cloned;
        }

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

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

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

            var parent = owner.getRootParent();
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {owner.toBasicString()}");

            //=====================================================================================
            // Attribute => try pending Doc
            //=====================================================================================
            var user_attribute = parent.getEntityAttribute<UserAttribute>();
            NullReferenceCheckHelper.throwIfNull(user_attribute, () => $"user_attribute is null !!! - {owner.toBasicString()}");

            var user_guid = user_attribute.UserGuid;

            var try_pending_doc = getTryPendingDocBase() as CharacterBaseDoc;
            if (null == try_pending_doc)
            {
                var to_copy_doc = new CharacterBaseDoc(user_guid, CharacterGuid);

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

                try_pending_doc = to_copy_doc;

                setTryPendingDocBase(try_pending_doc);
            }

            //=====================================================================================
            // Attribute => Doc
            //=====================================================================================
            var to_copy_doc_character_base_attrib = try_pending_doc.getAttrib<CharacterBaseAttrib>();
            NullReferenceCheckHelper.throwIfNull(to_copy_doc_character_base_attrib, () => $"to_copy_doc_character_base_attrib is null !!! - {owner.toBasicString()}");

            to_copy_doc_character_base_attrib.CharacterGuid = CharacterGuid;
            to_copy_doc_character_base_attrib.UserGuid = user_guid;
            to_copy_doc_character_base_attrib.StateInfo = StateInfo;
            to_copy_doc_character_base_attrib.ApperanceProfileValue.copyFromAppearanceProfile(AppearanceProfileValue);

            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);
            }

            return (result, to_query_doc);
        }

        public Result onMerge(EntityAttributeBase otherEntityAttribute)
        {
            var result = new Result();
            var err_msg = string.Empty;

            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var parent = owner.getRootParent();
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {owner.toBasicString()}");

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

                return result;
            }

            var user_attribute = parent.getEntityAttribute<UserAttribute>();
            NullReferenceCheckHelper.throwIfNull(user_attribute, () => $"user_attribute is null !!! - {owner.toBasicString()}");
            var user_guid = user_attribute.UserGuid;

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

                return result;
            }            

            CharacterGuid = other_character_attribute.CharacterGuid;
            StateInfo = other_character_attribute.StateInfo;
            AppearanceProfileValue = (AppearanceProfile)other_character_attribute.AppearanceProfileValue.Clone();

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

                syncOriginDocBaseWithNewDoc<CharacterAttribute>(try_pending_doc);
            }

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

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

            character_base_attrib.CharacterGuid = CharacterGuid;
            character_base_attrib.StateInfo = StateInfo;
            character_base_attrib.ApperanceProfileValue.copyFromAppearanceProfile(AppearanceProfileValue);

            return result;
        }

        public bool copyEntityAttributeFromMeta(MetaAssets.IMetaData customMeta)
        {
            var err_msg = string.Empty;

            bool is_success = false;

            var test_user_create_data = customMeta as MetaAssets.TestUserCreateMetaData;
            if (null != test_user_create_data)
            {
                is_success = copyEntityAttributeFromTestUserCreateData(test_user_create_data);
            }

            var user_create_data = customMeta as MetaAssets.UserCreateMetaData;
            if(null != user_create_data)
            {
                is_success = copyEntityAttributeFromUserCreateData(user_create_data);
            }

            if (false == is_success)
            {
                err_msg = $"Failed to copyEntityAttributeFromMeta() !!! : {customMeta.getTypeName()} - {getOwner().toBasicString()}";
                Log.getLogger().error(err_msg);
                return false;
            }

            return true;
        }

        private bool copyEntityAttributeFromTestUserCreateData(MetaAssets.TestUserCreateMetaData testUserCreateData)
        {
            var err_msg = string.Empty;

            var to_cast_string = typeof(MetaAssets.TestUserCreateMetaData).Name;
            if (null == testUserCreateData)
            {
                err_msg = $"Failed to copyEntityAttributeFromTestUserCreateData() !!!, testUserCreateData is null : {to_cast_string} - {getOwner().toBasicString()}";
                Log.getLogger().warn(err_msg);
                return false;
            }

            AppearanceProfileValue.BasicStyle = (UInt32)testUserCreateData.BasicStyle;
            AppearanceProfileValue.BodyShape = (UInt32)testUserCreateData.BodyShape;
            AppearanceProfileValue.HairStyle = (UInt32)testUserCreateData.HairStyle;
            AppearanceProfileValue.CustomValues = testUserCreateData.CustomValues.Select(x => x).ToList();

            return true;
        }

        private bool copyEntityAttributeFromUserCreateData(MetaAssets.UserCreateMetaData userCreateData)
        {
            var err_msg = string.Empty;

            var to_cast_string = typeof(MetaAssets.UserCreateMetaData).Name;
            if (null == userCreateData)
            {
                err_msg = $"Failed to copyEntityAttributeFromUserCreateData() !!!,  userCreateData is null : {to_cast_string}";
                Log.getLogger().warn(err_msg);
                return false;
            }

            return true;
        }

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

            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var parent = owner.getRootParent();
            NullReferenceCheckHelper.throwIfNull(parent, () =>  $"parent is null !!! - {owner.toBasicString()}");

            var to_cast_string = typeof(CharacterBaseDoc).Name;
            var character_doc_base = docBase as CharacterBaseDoc;
            if (null == character_doc_base)
            {
                err_msg = $"Failed to copyEntityAttributeFromDoc() !!!, character_doc_base is null :{to_cast_string} - {owner.toBasicString()}";
                Log.getLogger().error(err_msg);
                return false;
            }

            //=====================================================================================
            // New Doc => Origin Doc
            //=====================================================================================
            syncOriginDocBaseWithNewDoc<CharacterAttribute>(character_doc_base);

            //=====================================================================================
            // Doc => Attribute
            //=====================================================================================
            var doc_character_base_attrib = character_doc_base.getAttrib<CharacterBaseAttrib>();
            NullReferenceCheckHelper.throwIfNull(doc_character_base_attrib, () => $"doc_character_base_attrib is null !!! - {owner.toBasicString()}");
            CharacterGuid = doc_character_base_attrib.CharacterGuid;
            StateInfo = doc_character_base_attrib.StateInfo;
            AppearanceProfileValue.copyFromAppearanceProfile(doc_character_base_attrib.ApperanceProfileValue);

            return true;
        }
    }


    public class CharacterAttributeTransactor : EntityAttributeTransactorBase<CharacterAttribute>, ICopyEntityAttributeTransactorFromEntityAttribute
    {
        public CharacterAttributeTransactor(EntityBase owner)
            : base(owner) 
        { 
        }

        public bool copyEntityAttributeTransactorFromEntityAttribute(EntityAttributeBase? entityAttributeBase)
        {
            var err_msg = string.Empty;

            var to_cast_string = typeof(CharacterAttribute).Name;

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

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

            copy_to_character_attribute.CharacterGuid = copy_from_character_attribute.CharacterGuid;
            copy_to_character_attribute.StateInfo = copy_from_character_attribute.StateInfo;
            copy_to_character_attribute.AppearanceProfileValue = (CharacterAttribute.AppearanceProfile)(copy_from_character_attribute.AppearanceProfileValue.Clone());

            return true;
        }
    }
}