using Amazon.S3.Model;
using Newtonsoft.Json;
using ServerCommon;
using ServerCommon.Cache;
using ServerCore; using ServerBase;

namespace GameServer
{
    public enum FriendFolderorderType
    {
        ALPHABETICAL = 1,
        STATEFUL = 2,
    }
    public class FriendFolderAction : EntityActionBase
    {
        public FriendFolderAction(Player 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> loadFriendFolder()
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var server_logic = GameServerApp.getServerLogic();
            var batch = new QueryBatchEx<QueryRunnerWithDocument>(owner, LogActionType.None
                                                              , server_logic.getDynamoDbClient());
            {
                batch.addQuery(new DBQFriendFoldersReadAll(owner.getUserGuid()));
            }
            var result = await QueryHelper.sendQueryAndBusinessLog(batch);
            return result;
        }

        public ServerCommon.FriendFolder? getFriendFolder(string folderName)
        {
            var player = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!!");

            var friend_folder_attribute = player.getEntityAttribute<FriendFolderAttribute>();
            NullReferenceCheckHelper.throwIfNull(friend_folder_attribute, () => $"friend_folder_attribute is null !!!");

            friend_folder_attribute.m_folders.TryGetValue(folderName, out var folder);
            return folder;
        }

        public Result addFriendFolder(string folderName)
        {
            var friend_folder_attribute = getFriendFolderAttribute();
            
            var result = raiseErrorIfExistFolder(friend_folder_attribute, folderName);
            if (result.isFail()) return result;

            result = maxFolderNameLengthCheck(folderName);
            if (result.isFail()) return result;

            result = folderCountCheck(friend_folder_attribute);
            if (result.isFail()) return result;

            var folder = makeFriendFolder(folderName);
            if (false == friend_folder_attribute.m_folders.TryAdd(folderName, folder))
            { 
                var err_msg = $"folderInfo.Folders.TryAdd Error folderName : {folderName}, folder : {JsonConvert.SerializeObject(folder)}";
                result.setFail(ServerErrorCode.FolderCreateFail, err_msg);
                Log.getLogger().error(err_msg);
            }
            friend_folder_attribute.modifiedEntityAttribute();
            return result;
        }

        public Result holdFriendFolder(string folderName)
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var friend_folder_attribute = owner.getEntityAttribute<FriendFolderAttribute>();
            NullReferenceCheckHelper.throwIfNull(friend_folder_attribute, () => $"friend_folder_attribute is null !!!");

            var result = raiseErrorIfNotExistFolder(friend_folder_attribute, folderName);
            if (result.isFail()) return result;

            result = folderHoldCountCheck(friend_folder_attribute);
            if (result.isFail()) return result;

            result = holdFriendFolder(friend_folder_attribute, folderName);
            if (result.isFail()) return result;
            
            return result;
        }
        public Result releaseFriendFolder(string folderName)
        {
            var friend_folder_attribute = getFriendFolderAttribute();

            var result = raiseErrorIfNotExistFolder(friend_folder_attribute, folderName);
            if (result.isFail()) return result;

            result = releaseFriendFolder(friend_folder_attribute, folderName);
            if (result.isFail()) return result;

            return result;
        }

        public Result changeFriendFolderLocation(string myGuid, string friendGuid, string folderName)
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var friend_folder_attribute = getFriendFolderAttribute();

            var result = raiseErrorIfNotExistFolder(friend_folder_attribute, folderName);
            if (result.isFail()) return result;
            
            var friend_agent_action = owner.getEntityAction<FriendAgentAction>();
            var friends = friend_agent_action.getFriends();
            
            friends.TryGetValue(friendGuid, out var friend);
            NullReferenceCheckHelper.throwIfNull(friend, () => $"friend is null !!!");

            var friend_attribute = friend.getEntityAttribute<FriendAttribute>();
            NullReferenceCheckHelper.throwIfNull(friend_attribute, () => $"friend_attribute is null !!!");

            friend_attribute.modifiedEntityAttribute();

            //폴더명이 동일하면 그냥 성공했다고 리턴 처리
            if (true == friend_attribute.FolderName.Equals(folderName))
            {
                return result;
            }
            friend_attribute.FolderName = folderName;

            return result;
        }

        public Result renameFriendFolderConditionCheck(string oldFolderName, string newFolderName)
        {
            var owner = getOwner();
            
            var friend_folder_action = owner.getEntityAction<FriendFolderAction>();
            NullReferenceCheckHelper.throwIfNull(friend_folder_action, () => $"friend_folder_action is null !!!");

            var folder_folder_attribute = friend_folder_action.getFriendFolderAttribute();

            var result = raiseErrorIfNotExistFolder(folder_folder_attribute, oldFolderName);
            if (result.isFail()) return result;

            result = raiseErrorIfExistFolder(folder_folder_attribute, newFolderName);
            if (result.isFail()) return result;

            result = raiseErrorIfDefaultFolder(oldFolderName);
            if (result.isFail()) return result;

            result = maxFolderNameLengthCheck(newFolderName);
            if (result.isFail()) return result;

            return result;
        }

        public async Task<Result> renameFriendFolder(string userGuid, string oldFolderName, string newFolderName)
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var folder = getFriendFolder(oldFolderName);
            
            var friend_agent_action = owner.getEntityAction<FriendAgentAction>();
            NullReferenceCheckHelper.throwIfNull(friend_agent_action, () => $"friend_agent_action is null !!!");

            var friends = friend_agent_action.getFriends();

            //폴더명 수정
            var friend_folder_Attribute = owner.getEntityAttribute<FriendFolderAttribute>();
            NullReferenceCheckHelper.throwIfNull(friend_folder_Attribute, () => $"friend_folder_Attribute is null !!!");

            var result = new Result();
            if (false == friend_folder_Attribute.m_folders.TryRemove(oldFolderName, out var folderValue))
            {
                var err_msg = $"friend_folder_attrib not exist folderName : {oldFolderName}, attrib : {JsonConvert.SerializeObject(friend_folder_Attribute)}";
                result.setFail(ServerErrorCode.FolderNameNotExist, err_msg);
                Log.getLogger().error(result.toBasicString());
                return result;
            }
            ServerCommon.FriendFolder new_folder = copyFriendFolder(folderValue);
            new_folder.FolderName = newFolderName;
            friend_folder_Attribute.m_folders.TryAdd(newFolderName, new_folder);
            friend_folder_Attribute.modifiedEntityAttribute();

            List<FriendInterlockCacheRequest> caches = new();
            //관련 친구 데이터 수정
            foreach (var friend in friends)
            {
                var friend_attribbute = friend.Value.getEntityAttribute<FriendAttribute>();
                NullReferenceCheckHelper.throwIfNull(friend_attribbute, () => $"friend_attribbute is null !!!");

                if (friend_attribbute.FolderName.Equals(oldFolderName))
                {
                    IFriendInterlockAction action = new RenameFriendFolderInterlockAction(owner, userGuid, friend_attribbute, newFolderName);
                    (result, var lock_cache) = await action.doInterLockAndGetCache();
                    if (result.isFail())
                    {
                        //여기서 에러나도 수정 transaction 은 진행되야 되기 때문에 continue 처리
                        Log.getLogger().error($"RenameFriendFolderInterlockAction error userGuid : /*owner.getUserGuid()트랜잭션안에서 이거 호출하면 안됨*/" +
                            $" , friend_attribbute : {JsonConvert.SerializeObject(friend_attribbute)}, newFolderName : {newFolderName}");
                        continue;
                    }
                    if (lock_cache != null)
                    {
                        caches.Add(lock_cache);
                    }
                }
            }

            var server_logic = GameServerApp.getServerLogic();
            var batch = new QueryBatchEx<QueryRunnerWithDocument>(owner, LogActionType.RenameFriendFolder, server_logic.getDynamoDbClient());
            {
                batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
            }

            result = await QueryHelper.sendQueryAndBusinessLog(batch);

            foreach (var cache in caches)
            {
                await cache.removeFirstCache();
            }
            return result;
        }

        public async Task<Result> deleteFriendFolder(string myGuid, string folderName)
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var friend_folder_attribute = getFriendFolderAttribute();

            var result = raiseErrorIfDefaultFolder(folderName);
            if (result.isFail()) return result;
            
            result = raiseErrorIfDefaultFolder(folderName);
            if (result.isFail()) return result;
            
            // 삭제하려는 폴더가 없으면 그냥 성공 처리 
            if (false == isFolderNameExist(friend_folder_attribute, folderName))
            {
                return new();
            }

            //폴더 삭제 처리
            friend_folder_attribute.m_folders.TryRemove(folderName, out var folder);
            friend_folder_attribute.modifiedEntityAttribute();

            //db 업데이트 처리
            //폴더 삭제 처리,  친구 리스트 돌면서 폴더명 기본으로 바꿔주기
            var server_logic = GameServerApp.getServerLogic();
            var friend_agent_action = owner.getEntityAction<FriendAgentAction>();
            NullReferenceCheckHelper.throwIfNull(friend_agent_action, () => $"friend_agent_action is null !!!");

            var friends = friend_agent_action.getFriends();
            foreach (var friend in friends)
            {
                var friend_attribute = friend.Value.getEntityAttribute<FriendAttribute>();
                NullReferenceCheckHelper.throwIfNull(friend_attribute, () => $"friend_attribute is null !!!");

                if (friend_attribute.FolderName.Equals(folderName))
                {
                    IFriendInterlockAction interlock_action = new DeleteFriendFolderInterlockAction(owner, myGuid, friend_attribute);
                    result = await interlock_action.doInterlockAction();
                    if (result.isFail()) return result;

                    friend_attribute.modifiedEntityAttribute();
                }
            }
            return result;
        }

        private ServerCommon.FriendFolder makeFriendFolder(string folderName)
        {
            ServerCommon.FriendFolder folder = new ServerCommon.FriendFolder();
            folder.FolderName = folderName;
            DateTime dt = DateTimeHelper.Current;
            folder.CreateTime = dt;
            folder.HoldTime = dt;
            folder.IsHold = 0;

            return folder;
        }

        private ServerCommon.FriendFolder copyFriendFolder(ServerCommon.FriendFolder folder)
        {
            ServerCommon.FriendFolder new_folder = new ServerCommon.FriendFolder();
            new_folder.FolderName = folder.FolderName;
            new_folder.CreateTime = folder.CreateTime;
            new_folder.HoldTime = folder.HoldTime;
            new_folder.IsHold = folder.IsHold;

            return new_folder;
        }

        private Result holdFriendFolder(FriendFolderAttribute friendFolderAttribute, string folderName)
        {
            var result = new Result();

            if (false == friendFolderAttribute.m_folders.TryGetValue(folderName, out var folder))
            {
                string err_msg = $"friend_folder_attrib tryGet Error folderName : {folderName}, attrib : {JsonConvert.SerializeObject(friendFolderAttribute)}";
                result.setFail(ServerErrorCode.ServerLogicError, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }
            folder.IsHold = 1;
            friendFolderAttribute.modifiedEntityAttribute();
            return result;
        }

        private Result releaseFriendFolder(FriendFolderAttribute friend_folder_attribute, string folderName)
        {
            var result = new Result();

            if (false == friend_folder_attribute.m_folders.TryGetValue(folderName, out var folder))
            {
                string err_msg = $"friend_folder_attrib tryGet Error folderName : {folderName}, folderAttrib :  {JsonConvert.SerializeObject(friend_folder_attribute)} ";
                result.setFail(ServerErrorCode.ServerLogicError, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }
            folder.IsHold = 0;
            friend_folder_attribute.modifiedEntityAttribute();
            return result;
        }

        public Result changeOrderType(Int32 orderType)
        {
            var result = new Result();

            switch (orderType)
            {
                case (Int32)FriendFolderorderType.ALPHABETICAL:
                case (Int32)FriendFolderorderType.STATEFUL:
                    break;
                default:

                    var err_msg = $"FolderOdertypeInvalid OrderType = {orderType}";
                    result.setFail(ServerErrorCode.FolderOdertypeInvalid, err_msg);
                    Log.getLogger().error(err_msg);

                    return result;
            }
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var friend_folder_attribute = owner.getEntityAttribute<FriendFolderAttribute>();
            NullReferenceCheckHelper.throwIfNull(friend_folder_attribute, () => $"friend_folder_attribute is null !!!");

            friend_folder_attribute.m_folder_order_type = (short)orderType;
            friend_folder_attribute.modifiedEntityAttribute();
            return result;
        }
        

        public FriendFolderAttribute getFriendFolderAttribute()
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var attribute =  owner.getEntityAttribute<FriendFolderAttribute>();
            NullReferenceCheckHelper.throwIfNull(attribute, () => $"attribute is null !!!");

            return attribute;
        }

        private Result raiseErrorIfExistFolder(FriendFolderAttribute friendFolderAttribute, string folderName)
        {
            var result = new Result();

            if (true == isFolderNameExist(friendFolderAttribute, folderName))
            {
                var err_msg = $"{folderName} is already exist  but origin folders : {JsonConvert.SerializeObject(friendFolderAttribute)}";
                result.set(ServerErrorCode.FolderNameAlreadyExist, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }
            return result;
        }

        private Result raiseErrorIfNotExistFolder(FriendFolderAttribute friendFolderAttribute, string folderName)
        {
            var result = new Result();
            if (false == isFolderNameExist(friendFolderAttribute, folderName))
            {
                var err_msg = $"recved folderName is {folderName} but origin folders : {JsonConvert.SerializeObject(friendFolderAttribute)}";
                result.set(ServerErrorCode.FolderNameNotExist, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }
            return result;
        }

        private bool isFolderNameExist(FriendFolderAttribute friendFolderAttribute, string makeFolderName)
        {
            return friendFolderAttribute.m_folders.ContainsKey(makeFolderName);
        }

        private Result raiseErrorIfDefaultFolder(string folderName)
        {
            var result = new Result();
            if (folderName.Equals(ServerCommon.Constant.FRIEND_FOLDER_DEFUALT_NAME))
            {
                result.set(ServerErrorCode.FolderReNameCannotDefault, $"folderName is {folderName}");
                return result;
            }
            return result;
        }

        private Result maxFolderNameLengthCheck(string folderName)
        {
            var result = new Result();
            if (folderName.Length > MetaHelper.GameConfigMeta.FriendFolderNameMaxLength)
            {
                result.set(ServerErrorCode.FolderNameExceededLength, $"folderName is {folderName}");
                return result;
            }
            return result;
        }


        private Result folderCountCheck(FriendFolderAttribute friendFolderAttribute)
        {
            var result = new Result();

            if (friendFolderAttribute.m_folders.Count >= MetaHelper.GameConfigMeta.FriendFolderMaxCount)
            {
                var err_msg = $"folderInfo.Folders.Count is {friendFolderAttribute.m_folders.Count}, Server Max Count = {MetaHelper.GameConfigMeta.FriendFolderMaxCount}";
                result.set(ServerErrorCode.FolderCountExceed, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }

            return result;
        }

        private Result folderHoldCountCheck(FriendFolderAttribute friendFolderAttribue)
        {
            var result = new Result();
            int holdCount = 0;
            
            foreach (var folder in friendFolderAttribue.m_folders.Values)
            {
                if (folder.IsHold == 1) holdCount++;
            }

            if (holdCount >= MetaHelper.GameConfigMeta.FriendFolderMaxHoldCount)
            {
                var err_msg = $"folderInfo.Folders.Hold_Count is {holdCount}, Server Max  Hold Count = {MetaHelper.GameConfigMeta.FriendFolderMaxHoldCount}";
                result.set(ServerErrorCode.FolderNameAlreadyMaxHoldCount, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }

            return result;
        }
    }
}