using ServerCommon;
using ServerCore; using ServerBase;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using META_ID = System.UInt32;

namespace GameServer
{
    internal class LandAction : EntityActionBase
    {
        public LandAction(Land owner)
            : base(owner)
        { }

        public override async Task<Result> onInit()
        {
            var result = new Result();
            return await Task.FromResult(result);
        }

        public override void onClear()
        {
            return;
        }

        public async Task<Result> tryLoadLandFromDb(int landMetaId)
        {
            var result = new Result();
            var err_msg = string.Empty;

            var server_logic = GameServerApp.getServerLogic();
            var db_client = server_logic.getDynamoDbClient();

            var doc = new LandDoc();
            doc.setCombinationKeyForPK(landMetaId.ToString());

            var error_code = doc.onApplyPKSK();
            if (error_code.isFail())
            {
                err_msg = $"Failed to onApplyPKSK() !!! : {error_code.toBasicString()}";
                result.setFail(error_code, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            var query_config = db_client.makeQueryConfigForReadByPKSK(doc.getPK());
            (result, var read_docs) = await db_client.simpleQueryDocTypesWithQueryOperationConfig<LandDoc>(query_config);
            if (result.isFail())
            {
                err_msg = $"Failed to simpleQueryDocTypesWithQueryOperationConfig() !!! : {result.toBasicString()}";
                Log.getLogger().error(err_msg);

                return result;
            }

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

            var land_attribute = land.getEntityAttribute<LandAttribute>();
            NullReferenceCheckHelper.throwIfNull(land_attribute, () => $"land_attribute is null !!!");

            foreach (var read_doc in read_docs)
            {
                if (!land_attribute.copyEntityAttributeFromDoc(read_doc))
                {
                    err_msg = $"Failed to copyEntityAttributeFromDoc() !!! to:{land_attribute.getTypeName()}, from:{read_doc.getTypeName()} : {this.getTypeName()}";
                    result.setFail(ServerErrorCode.DynamoDbDocCopyToEntityAttributeFailed, err_msg);
                    Log.getLogger().error(result.toBasicString());

                    return result;
                }
            }

            if (land_attribute.LandMetaId == 0)
            {
                land_attribute.LandMetaId = (uint)landMetaId;

                if (read_docs.Count != 0)
                {
                    Log.getLogger().info($"LandDoc.LandAtrib.LandMetaId is 0 !!! - landMetaId:{landMetaId}");
                }
            }

            return result;
        }

        public async Task<(Result, DynamoDbDocBase?)> modifyLandInfo(string landName, string landDescription)
        {
            var result = new Result();
            var err_msg = string.Empty;

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

            var land_attribute = land.getEntityAttribute<LandAttribute>();
            NullReferenceCheckHelper.throwIfNull(land_attribute, () => $"land_attribute is null !!!");

            land_attribute.LandName = landName;
            land_attribute.Description = landDescription;
            land_attribute.IsLoadFromDb = true;
            land_attribute.modifiedEntityAttribute();

            (result, var land_doc) = await land_attribute.toDocBase();
            if (result.isFail())
            {
                err_msg = $"Failed to toDocBase() !!! : {result.toBasicString()}";
                Log.getLogger().error(err_msg);

                return (result, null);
            }

            return (result, land_doc);
        }

        public void modifyLandInfo(LandInfo landInfo)
        {
            var land = getOwner() as Land;
            NullReferenceCheckHelper.throwIfNull(land, () => $"land is null !!!");

            var land_attribute = land.getEntityAttribute<LandAttribute>();
            NullReferenceCheckHelper.throwIfNull(land_attribute, () => $"land_attribute is null !!!");

            land_attribute.OwnerUserGuid = landInfo.OwnerUserGuid;
            land_attribute.LandName = landInfo.LandName;
            land_attribute.Description = landInfo.LandDescription;
            land_attribute.modifiedEntityAttribute();
        }

        public bool isExistOwner()
        {
            var land = getOwner() as Land;
            NullReferenceCheckHelper.throwIfNull(land, () => $"land is null !!!");

            var land_attribute = land.getEntityAttribute<LandAttribute>();
            NullReferenceCheckHelper.throwIfNull(land_attribute, () => $"land_attribute is null !!!");

            return land_attribute.OwnerUserGuid != string.Empty;
        }

        public void setLandOwner(int landMetaId, string userGuid)
        {
            var land = getOwner() as Land;
            NullReferenceCheckHelper.throwIfNull(land, () => $"land is null !!!");

            var land_attribute = land.getEntityAttribute<LandAttribute>();
            NullReferenceCheckHelper.throwIfNull(land_attribute, () => $"land_attribute is null !!!");

            if (!land_attribute.IsLoadFromDb)
            {
                land_attribute.LandMetaId = (uint)landMetaId;
                land_attribute.OwnerUserGuid = userGuid;
                land_attribute.newEntityAttribute();
            }
            else
            {
                land_attribute.OwnerUserGuid = userGuid;
                land_attribute.modifiedEntityAttribute();
            }

        }

        public void changeOwner(string userGuid)
        {
            var land = getOwner() as Land;
            NullReferenceCheckHelper.throwIfNull(land, () => $"land is null !!!");

            var land_attribute = land.getEntityAttribute<LandAttribute>();
            NullReferenceCheckHelper.throwIfNull(land_attribute, () => $"land_attribute is null !!!");

            land_attribute.OwnerUserGuid = userGuid;
            land_attribute.modifiedEntityAttribute();
        }

        public void initOwner()
        {
            var land = getOwner() as Land;
            NullReferenceCheckHelper.throwIfNull(land, () => $"land is null !!!");

            var land_attribute = land.getEntityAttribute<LandAttribute>();
            NullReferenceCheckHelper.throwIfNull(land_attribute, () => $"land_attribute is null !!!");

            land_attribute.OwnerUserGuid = string.Empty;
            land_attribute.modifiedEntityAttribute();
        }

        public bool isLandOwner(string userGuid)
        {
            var land = getOwner() as Land;
            NullReferenceCheckHelper.throwIfNull(land, () => $"land is null !!!");

            var land_attribute = land.getEntityAttribute<LandAttribute>();
            NullReferenceCheckHelper.throwIfNull(land_attribute, () => $"land_attribute is null !!!");

            return land_attribute.OwnerUserGuid == userGuid;
        }
    }
}