using Amazon.Runtime.Internal;
using Org.BouncyCastle.Asn1.Ocsp;
using ServerCommon;
using ServerCore; using ServerBase;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace GameServer
{
    internal static class LandHelper
    {
        public static async Task<LandInfo> toLandInfo(this Land land)
        {
            var land_attribute = land.getEntityAttribute<LandAttribute>();
            NullReferenceCheckHelper.throwIfNull(land_attribute, () => $"land_attribute is null !!!");

            var land_info = new LandInfo();

            land_info.LandMetaId = (int)land_attribute.LandMetaId;
            land_info.LandName = land_attribute.LandName;
            land_info.LandDescription = land_attribute.Description;
            land_info.OwnerUserGuid = land_attribute.OwnerUserGuid;

            if (land_attribute.OwnerUserGuid != string.Empty)
            {
                var (result, nickname_attrib) = await NicknameDoc.findNicknameFromGuid(land_attribute.OwnerUserGuid);
                if (result.isSuccess() && nickname_attrib != null)
                {
                    land_info.OwnerUserNickname = nickname_attrib.Nickname;
                }
            }

            return land_info;
        }

        public static async Task<(Result, Land?, OwnedLand?, DynamoDbDocBase?)> tryGainLand(Player player, int landMetaId)
        {
            var result = new Result();
            var err_msg = string.Empty;

            var server_logic = GameServerApp.getServerLogic();

            if (!MetaData.Instance._LandTable.TryGetValue(landMetaId, out var land_meta_data))
            {
                err_msg = $"Failed to MetaData.TryGetValue() !!! : LandMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.LandMetaDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            if (land_meta_data.Editor != MetaAssets.EditorType.USER)
            {
                err_msg = $"Land EditorType is NOT USER !!! : LandMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.LandEditorIsNotUser, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            if (!MapManager.Instance.GetLandMapTree(landMetaId, out var land_map_tree))
            {
                err_msg = $"Failed to GetLandMapTree() !!! : LandMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.LandMapTreeDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            var land_manager = server_logic.getLandManager();
            if (!land_manager.tryGetLand(landMetaId, out var land))
            {
                err_msg = $"Failed to tryGetLand() !!! : landMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.LandNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            var land_action = land.getEntityAction<LandAction>();
            NullReferenceCheckHelper.throwIfNull(land_action, () => $"land_action is null !!! - {player.toBasicString()}");

            if (land_action.isExistOwner())
            {
                err_msg = $"Land Exist Owner !!! : landMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.LandExistOwner, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            var user_guid = player.getUserGuid();
            land_action.setLandOwner(landMetaId, user_guid);

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

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

                return (result, null, null, null);
            }
            NullReferenceCheckHelper.throwIfNull(land_doc_base, () => $"land_doc_base is null !!! - {player.toBasicString()}");

            (result, var owned_land) = await OwnedLandHelper.createOwnedLand(player, landMetaId, OwnedType.Own);
            if (result.isFail())
            {
                err_msg = $"Failed to createOwnedLand() !!! : {result.toBasicString()}";
                Log.getLogger().error(err_msg);

                return (result, null, null, null);
            }
            NullReferenceCheckHelper.throwIfNull(owned_land, () => $"owned_land is null !!! - {player.toBasicString()}");

            return (result, land, owned_land, land_doc_base);
        }

        public static async Task<(Result, Land?, OwnedLand?, DynamoDbDocBase?)> tryInitMyLandOwnership(Player player, int landMetaId)
        {
            var result = new Result();
            var err_msg = string.Empty;

            var server_logic = GameServerApp.getServerLogic();

            if (!MetaData.Instance._LandTable.TryGetValue(landMetaId, out var land_meta_data))
            {
                err_msg = $"Failed to MetaData.TryGetValue() !!! : LandMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.LandMetaDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            if (land_meta_data.Editor != MetaAssets.EditorType.USER)
            {
                err_msg = $"Land EditorType is NOT USER !!! : LandMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.LandEditorIsNotUser, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            if (!MapManager.Instance.GetLandMapTree(landMetaId, out var land_map_tree))
            {
                err_msg = $"Failed to GetLandMapTree() !!! : LandMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.LandMapTreeDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            var land_manager = server_logic.getLandManager();
            if (!land_manager.tryGetLand(landMetaId, out var land))
            {
                err_msg = $"Failed to tryGetLand() !!! : landMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.LandNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            var land_action = land.getEntityAction<LandAction>();
            NullReferenceCheckHelper.throwIfNull(land_action, () => $"land_action is null !!! - {player.toBasicString()}");

            var user_guid = player.getUserGuid();
            if (!land_action.isLandOwner(user_guid))
            {
                err_msg = $"Land Owner is Not Match !!! : landMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.LandOwnerIsNotMatch, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            land_action.initOwner();

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

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

                return (result, null, null, null);
            }
            NullReferenceCheckHelper.throwIfNull(land_doc_base, () => $"land_doc_base is null !!! - {player.toBasicString()}");

            var owned_land_agent_action = player.getEntityAction<OwnedLandAgentAction>();
            NullReferenceCheckHelper.throwIfNull(owned_land_agent_action, () => $"owned_land_agent_action is null !!! - {player.toBasicString()}");

            if (!owned_land_agent_action.tryGetOwnedLand(landMetaId, out var owned_land))
            {
                err_msg = $"Failed to tryGetOwnedLand() !!! : landMetaId:{landMetaId} - {player.toBasicString()}";
                result.setFail(ServerErrorCode.OwnedLandNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null, null);
            }

            var owned_land_action = owned_land.getEntityAction<OwnedLandAction>();
            NullReferenceCheckHelper.throwIfNull(owned_land_action, () => $"owned_land_action is null !!! - {player.toBasicString()}");

            owned_land_action.DeleteOwnedLand();

            return (result, land, owned_land, land_doc_base);
        }
    }
}