using Google.Protobuf.WellKnownTypes;
using Newtonsoft.Json;
using StackExchange.Redis;


using ServerCore;
using ServerBase;


namespace ServerCommon;

public class SummonInfo
{
    // 소환 여부 판단 ( true - 소환 중 )
    public bool IsAlreadySummon { get; set; }
    
    // 소환 Server
    public string? SummonServer { get; set; }
    
    // 소환 Pos
    public Pos? SummonPos { get; set; }

    public SummonInfo clone()
    {
        var clone = new SummonInfo
        {
            IsAlreadySummon = IsAlreadySummon,
            SummonServer = SummonServer,
            SummonPos = SummonPos
        };

        return clone;
    }

    public void clear()
    {
        IsAlreadySummon = false;
        SummonServer = null;
        SummonPos = null;
    }
}

public class PartyMemberInfo
{
    // 유저 Guid
    public string UserGuid { get; set; } = string.Empty;
    
    // 유저 nickname ( 파티 도중 닉네임 변경시 처리 불가
    public string Nickname { get; set; } = string.Empty;
    
    // 마커 Id - 유저 표시용
    public int MarkId { get; set; } = 0;
    
    // Party Join Time
    public Timestamp JoinTime { get; set; } = new();
    
    // 소환 정보
    public SummonInfo Summon { get; set; } = new();
    
    
    // 유저 위치 정보
    public UserLocationInfo LocationInfo { get; set; } = new();

    public PartyMemberInfo clone()
    {
        var clone = new PartyMemberInfo
        {
            UserGuid = UserGuid,
            Nickname = Nickname,
            MarkId = MarkId,
            JoinTime = JoinTime,
            Summon = Summon.clone(),
            LocationInfo = LocationInfo
        };

        return clone;
    }
}

public class PartyMemberCache : CacheBase
{
    public Dictionary<string, PartyMemberInfo> PartyMembers { get; set; } = new();

    public void upsertPartyMember(PartyMemberInfo user)
    {
        PartyMembers[user.UserGuid] = user;
    }

    public void deleteJoinMember(string user_guid) => PartyMembers.Remove(user_guid);
    
    public string toBasicString()
    {
        return $"PartyCache: PartyMembers:{PartyMembers}";
    }

}
public class PartyMemberCacheRequest : RedisRequestSharedBase
{
    // in
    private readonly string m_party_guid;
    
    // out
    private PartyMemberCache? m_party_member_cache_nullable { get; set; }

    public PartyMemberCacheRequest(string party_guid, RedisConnector redisConnector) : base(party_guid, redisConnector)
    {
        m_party_guid = party_guid;
    }
    
    protected override string onMakeKey() => $"party:{m_party_guid}:members";
    public override string toBasicString() => $"PartyMemberCache: In:PartyGuid:{m_party_guid}, Out:{m_party_member_cache_nullable?.toBasicString()}";
    
    public PartyMemberCache? getPartyMemberCache() => m_party_member_cache_nullable;

    public async Task<Result> keepPartyMemberCache()
    {
        var result = new Result();
        string err_msg;

        try
        {
            result = await onPrepareRequest();
            if (result.isFail()) return result;

            var database = getDatabase();
            ArgumentNullException.ThrowIfNull(database);

            var redis_value = await database.KeyExpireAsync(getKey(), TimeSpan.FromMilliseconds(Constant.KEEP_PARTY_TIME));
            if (false == redis_value)
            {
                err_msg = $"Failed to set expire PartyMemberCache in Redis !!! : Key:{getKey()} - {nameof(keepPartyMemberCache)}";
                result.setFail(ServerErrorCode.RedisGlobalPartyMemberCacheWriteFailed, err_msg);
                Log.getLogger().error(err_msg);
            }
        }
        catch (Exception e)
        {
            var error_code = ServerErrorCode.TryCatchException;
            err_msg = $"Failed to set expire PartyMemberCache from Redis !!! : : errorCode{error_code}, errMsg:{e.Message} - {nameof(keepPartyMemberCache)}";
            result.setFail(error_code, err_msg);
            Log.getLogger().error(err_msg);
        }

        return result;
    }
    
    public async Task<Result> fetchPartyMemberCache()
    {
        var result = new Result();
        string err_msg;

        try
        {
            result = await onPrepareRequest();
            if (result.isFail()) return result;

            var database = getDatabase();
            ArgumentNullException.ThrowIfNull(database);

            var curr_party_members = new List<PartyMemberInfo>();
            
            var redis_value = await database.HashValuesAsync(getKey(), CommandFlags.PreferReplica);
            foreach (var member_value in redis_value)
            {
                var member = JsonConvert.DeserializeObject<PartyMemberInfo>(member_value.ToString());
                if (null == member)
                {
                    Log.getLogger().error($"JsonConvert.DeserializeObject<PartyMemberInfo> Error {member_value.ToString()}");
                    continue;
                }

                curr_party_members.Add(member);
            }
            
            m_party_member_cache_nullable ??= new PartyMemberCache();
            m_party_member_cache_nullable.PartyMembers.Clear();
            foreach (var member in curr_party_members)
            {
                m_party_member_cache_nullable.PartyMembers.Add(member.UserGuid, member);
            }
            
            return result;
            
        }
        catch (Exception e)
        {
            var error_code = ServerErrorCode.TryCatchException;
            err_msg = $"Failed to get PartyMemberCache from Redis !!! : : errorCode{error_code}, errMsg:{e.Message} - {nameof(fetchPartyMemberCache)}";
            result.setFail(error_code, err_msg);
            Log.getLogger().error(err_msg);
        }

        return result;
    }

    public async Task<Result> changeJoinMember(PartyMemberInfo user)
    {
        var result = new Result();
        string err_msg;

        try
        {
            result = await onPrepareRequest();
            if (result.isFail()) return result;

            var database = getDatabase();
            ArgumentNullException.ThrowIfNull(database);

            var input_user_json = JsonConvert.SerializeObject(user);
            await database.HashSetAsync(getKey(), user.UserGuid, input_user_json);
            
            m_party_member_cache_nullable ??= new PartyMemberCache();
            m_party_member_cache_nullable.upsertPartyMember(user);

            result = await keepPartyMemberCache();
            
            return result;
            
        }
        catch (Exception e)
        {
            var error_code = ServerErrorCode.TryCatchException;
            err_msg = $"Failed to get PartyMemberCache from Redis !!! : : errorCode{error_code}, errMsg:{e.Message} - {nameof(fetchPartyMemberCache)}";
            result.setFail(error_code, err_msg);
            Log.getLogger().error(err_msg);
        }

        return result;
    }

    public async Task<Result> deletePartyMemberCache()
    {
        var result = new Result();

        try
        {
            result = await onPrepareRequest();
            if (result.isFail()) return result;

            var database = getDatabase();
            ArgumentNullException.ThrowIfNull(database);

            m_party_member_cache_nullable = null;

            _ = await database.KeyDeleteAsync(getKey(), CommandFlags.FireAndForget);
            
            return result;
            
        }
        catch (Exception e)
        {
            var error_code = ServerErrorCode.TryCatchException;
            var err_msg = $"Failed to delete PartyMemberCache from Redis !!! : : errorCode{error_code}, errMsg:{e.Message} - {nameof(deletePartyMemberCache)}";
            result.setFail(error_code, err_msg);
            Log.getLogger().error(err_msg);
        }

        return result;
    }
    
    public async Task<Result> deleteJoinMember(string delete_user)
    {
        var result = new Result();
        string err_msg;

        try
        {
            result = await onPrepareRequest();
            if (result.isFail()) return result;

            var database = getDatabase();
            ArgumentNullException.ThrowIfNull(database);

            if (false == await database.HashDeleteAsync(getKey(), delete_user))
            {
                err_msg = $"Fail to delete join member !!! : {nameof(changeJoinMember)} - user_guid[{delete_user}]";
                result.setFail(ServerErrorCode.RedisSetsWriteFailed, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }

            if (null == m_party_member_cache_nullable)
            {
                return result;
            }
            
            m_party_member_cache_nullable.deleteJoinMember(delete_user);
            
            return result;
            
        }
        catch (Exception e)
        {
            var error_code = ServerErrorCode.TryCatchException;
            err_msg = $"Failed to delete PartyMemberCache from Redis !!! : : errorCode{error_code}, errMsg:{e.Message} - {nameof(deleteJoinMember)}";
            result.setFail(error_code, err_msg);
            Log.getLogger().error(err_msg);
        }

        return result;
    }
}