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


using ServerCore;
using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;
using MetaAssets;


namespace ServerCommon;

public class PartyCache : CacheBase
{
    public string PartyGuid { get; set; } = string.Empty;
    public string PartyName { get; set; } = string.Empty;
    public string PartyLeaderCharGuid { get; set; } = string.Empty;
    public string PartyLeaderNickname { get; set; } = string.Empty;
    public DateTime CreatePartyTime { get; set; } = DateTimeHelper.Current;
    public Timestamp? LastVoteTime { get; set; }
    
    public string toBasicString()
    {
        return $"PartyCache: PartyGuid:{PartyGuid}, PartyName:{PartyName}, PartyLeaderCharGuid:{PartyLeaderCharGuid}, LastVoteTime:{LastVoteTime?.toBasicString() ?? string.Empty}";
    }
}

public class PartyCacheRequest : RedisRequestSharedBase
{
    // in
    private readonly string m_party_guid;
    
    // out
    private PartyCache? m_party_cache_nullable { get; set; }
    
    public PartyCacheRequest(string party_guid, RedisConnector redisConnector) : base(party_guid, redisConnector)
    {
        m_party_guid = party_guid;
    }

    protected override string onMakeKey() => $"party:{m_party_guid}:info";
    public override string toBasicString() => $"LoginCache: In:PartyGuid:{m_party_guid}, Out:{m_party_cache_nullable?.toBasicString()}";
    
    public PartyCache? getPartyCache() => m_party_cache_nullable;

    public async Task<Result> keepPartyCache()
    {
        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 PartyCache in Redis !!! : Key:{getKey()} - {nameof(keepPartyCache)}";
                result.setFail(ServerErrorCode.RedisGlobalPartyCacheWriteFailed, err_msg);
                Log.getLogger().error(err_msg);
            }
        }
        catch (Exception e)
        {
            var error_code = ServerErrorCode.TryCatchException;
            err_msg = $"Failed to keep PartyCache from Redis !!! : : errorCode{error_code}, errMsg:{e.Message} - {nameof(keepPartyCache)}";
            result.setFail(error_code, err_msg);
            Log.getLogger().error(err_msg);
        }

        return result;
        
    }
    
    public async Task<Result> fetchPartyCache()
    {
        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.StringGetAsync(getKey(), CommandFlags.PreferReplica);
            if (false == redis_value.HasValue)
            {
                err_msg = $"Failed to get PartyCache in Redis !!! : Key:{getKey()} - {nameof(fetchPartyCache)}";
                result.setFail(ServerErrorCode.RedisGlobalPartyCacheGetFailed, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }
            
            var curr_party_cache = JsonConvert.DeserializeObject<PartyCache>(redis_value.ToString());
            if (null == curr_party_cache)
            {
                err_msg = $"Failed to convert DeserializeObject of Json !!! : {toBasicString()} - {nameof(fetchPartyCache)}";
                result.setFail(ServerErrorCode.JsonConvertDeserializeFailed, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }

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

        return result;
    }

    public async Task<Result> createPartyCache(string leader_guid, string leader_nickname)
    {
        var result = new Result();
        string err_msg;

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

            m_party_cache_nullable ??= new PartyCache();
            m_party_cache_nullable.PartyGuid = m_party_guid;
            m_party_cache_nullable.PartyName = string.Empty;
            m_party_cache_nullable.PartyLeaderCharGuid = leader_guid;
            m_party_cache_nullable.PartyLeaderNickname = leader_nickname;
            var cache = JsonConvert.SerializeObject(m_party_cache_nullable);
            
            var database = getDatabase();
            ArgumentNullException.ThrowIfNull(database);

            var redis_value = await database.StringSetAsync(getKey(), cache, TimeSpan.FromMilliseconds(Constant.KEEP_PARTY_TIME));
            if (false == redis_value)
            {
                err_msg = $"Failed to get PartyCache in Redis !!! : Key:{getKey()} - {nameof(createPartyCache)}";
                result.setFail(ServerErrorCode.RedisGlobalPartyCacheWriteFailed, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }
            
            return result;
            
        }
        catch (Exception e)
        {
            var error_code = ServerErrorCode.TryCatchException;
            err_msg = $"Failed to get PartyCache from Redis !!! : : errorCode{error_code}, errMsg:{e.Message} - {nameof(createPartyCache)}";
            result.setFail(error_code, err_msg);
            Log.getLogger().error(err_msg);
        }

        return result;
    }

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

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

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

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

        return result;
    }

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

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

            var cache = JsonConvert.SerializeObject(m_party_cache_nullable);
            
            var database = getDatabase();
            ArgumentNullException.ThrowIfNull(database);

            var redis_value = await database.StringSetAsync(getKey(), cache, TimeSpan.FromMilliseconds(Constant.KEEP_PARTY_TIME));
            if (false == redis_value)
            {
                err_msg = $"Failed to set PartyCache in Redis !!! : Key:{getKey()} - {nameof(upsertPartyCache)}";
                result.setFail(ServerErrorCode.RedisGlobalPartyCacheWriteFailed, err_msg);
                Log.getLogger().error(err_msg);
                return result;
            }
            
            return result;
            
        }
        catch (Exception e)
        {
            var error_code = ServerErrorCode.TryCatchException;
            err_msg = $"Failed to get PartyCache from Redis !!! : : errorCode{error_code}, errMsg:{e.Message} - {nameof(upsertPartyCache)}";
            result.setFail(error_code, err_msg);
            Log.getLogger().error(err_msg);
        }

        return result;
    }
}