using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Runtime.InteropServices;
using System.Threading.Tasks;
using ConsoleHttp;
using ConsoleHttp.Model;
using MqttMsgServer.Dao;
using MqttMsgServer.HttpService.dto;
using MqttMsgServer.Model;
using MqttMsgServer.Redis;
using MqttMsgServer.Service.Client.Dto;
using MqttMsgServer.Tools;
using MQTTnet.Protocol;
using StackExchange.Redis;

namespace MqttMsgServer.Service.Client
{
    public interface IClientInfoService
    {
        ResponseResult AddOrUpdateClient(ClientDto input);
        ResponseResult RegisterClient(ClientDto input);
        ResponseResult UpdateClients(ClientDto input);
        void RefreshClientCache(ClientInfos input);
        ResponseResult ConnectServer(ConnectDto input);
    }
    public class ClientInfoService : IClientInfoService
    {
        //private readonly IRepository<string, ClientInfos> ClientsRepository;
        //private readonly IRepository<String,ReceiveMessageRecord> ReceiveMessageRecordRepository;
        protected RedisHelpers redisCache;
        public ClientInfoService()//IRepository<string, ClientInfos> clientsRepository, IRepository<string, ReceiveMessageRecord> receiveMessageRecordRepository
        {
            //ClientsRepository = clientsRepository;
            //ReceiveMessageRecordRepository = receiveMessageRecordRepository;
            this.redisCache = new RedisHelpers();
        }

        public ResponseResult ConnectServer(ConnectDto input)
        {
            ResponseResult result = new ResponseResult();
            if (string.IsNullOrEmpty(input.ClientName) || string.IsNullOrEmpty(input.ClientId) ||
                string.IsNullOrEmpty(input.Password))
            {
                return StringHelper.CheckError("请求字段为空！");
            }

            //var rs = RedisHelper.Instance.GetStringKey<ClientInfos>(CacheName.ClientCachePrefix + input.ClientId);
            var rs = redisCache.StringGet<ClientInfos>(CacheName.ClientCachePrefix + input.ClientId);
            if (rs == null)
            {
                string lcSql = $"select * from Clients where Id='{input.ClientId}';";
                DataTable dt = SqlDbHelper.ExecuteDataTable(lcSql);
                if (dt != null && dt.Rows.Count > 0)
                {
                   rs= StringHelper.ToList<ClientInfos>(dt).FirstOrDefault();
                }
            }
            if (rs == null)
            {
                return StringHelper.CheckError("用户不存在！");
            }

            if (rs.ClientState == DefineConfig.ClientStateClosed)
            {
                return StringHelper.CheckError("账户已被锁定！");
            }
            var pwd = StringHelper.GenerateMD5(input.Password);
            if (pwd != rs.Password)
            {
                return StringHelper.CheckError("密码不正确！");
            }
            // RedisHelper.Instance.SetStringKey(CacheName.ClientCachePrefix + input.ClientId, rs, TimeSpan.FromHours(24));
            redisCache.StringSet(CacheName.ClientCachePrefix + input.ClientId, rs, TimeSpan.FromHours(24));
            return result;
        }

        public void RefreshClientCache(ClientInfos input)
        {
            //RedisHelper.Instance.SetStringKey(CacheName.ClientCachePrefix + input.Id, input, TimeSpan.FromHours(input.Hours));
            redisCache.StringSet(CacheName.ClientCachePrefix + input.Id, input, TimeSpan.FromHours(input.Hours));
        }

        public ResponseResult AddOrUpdateClient(ClientDto input)
        {
            ResponseResult result = new ResponseResult();
            if (string.IsNullOrEmpty(input.ClientName) || string.IsNullOrEmpty(input.Id) ||
                string.IsNullOrEmpty(input.Password))
            {
                return StringHelper.CheckError("编号，名称，密码请求字段为空！");
            }

            var check = GetClientInfo(input.Id);
            //typeof(SqlDbHelper).LogError("1.--查询对象");
            if (check == null)
            {
                ClientInfos c = new ClientInfos()
                {
                    Id = input.Id,
                    ClientName = input.ClientName,
                    ClientState = input.ClientState,
                    CreatorDate = DateTime.Now,
                    CreatorUserId = 1,
                    Password = StringHelper.GenerateMD5(input.Password),
                    SystemDesc = input.SystemDesc,
                    Hours = input.Hours
                };
                SqlDbHelper.ExecuteNonQuery(c.InsertSql());
                RefreshClientCache(c);
            }
            else
            {
               //typeof(SqlDbHelper).LogError("2.--查询到对象");
                ClientInfos c = new ClientInfos()
                {
                    Id = input.Id,
                    ClientName = string.IsNullOrEmpty(input.ClientName) ? check.ClientName : input.ClientName,
                    ClientState = input.ClientState,
                    Password = string.IsNullOrEmpty(input.Password) ? check.Password : StringHelper.GenerateMD5(input.Password),
                    SystemDesc = string.IsNullOrEmpty(input.SystemDesc) ? check.SystemDesc : input.SystemDesc,
                    Hours = input.Hours,
                    CreatorDate = check.CreatorDate,
                    CreatorUserId = check.CreatorUserId,
                };
                //typeof(SqlDbHelper).LogError("3.--创建到对象");
                SqlDbHelper.ExecuteNonQuery(c.UpdateSql());
                //typeof(SqlDbHelper).LogError("4.--更新数据库对象");
                RefreshClientCache(c);
                //typeof(SqlDbHelper).LogError("5.--更新缓存");
            }
            return result;
        }

        private ClientInfos GetClientInfo(string id)
        {
            ClientInfos check = null;
            string lcSql = $"select * from Clients where Id='{id}';";
            DataTable dt = SqlDbHelper.ExecuteDataTable(lcSql);
            if (dt != null && dt.Rows.Count > 0)
            {
                check = StringHelper.ToList<ClientInfos>(dt).FirstOrDefault();
            }

            return check;
        }
        public ResponseResult RegisterClient(ClientDto input)
        {
            ResponseResult result = new ResponseResult();
            if (string.IsNullOrEmpty(input.ClientName) || string.IsNullOrEmpty(input.Id) ||
                string.IsNullOrEmpty(input.Password))
            {
                return StringHelper.CheckError("编号，名称，密码请求字段为空！");
            }
            var check = GetClientInfo(input.Id);
           
            if (check != null)
            {
                return StringHelper.CheckError("clientId已经存在！");
            }
            ClientInfos c = new ClientInfos()
            {
                Id = input.Id,
                ClientName = input.ClientName,
                ClientState = input.ClientState,
                CreatorDate = DateTime.Now,
                CreatorUserId = 1,
                Password = StringHelper.GenerateMD5(input.Password),
                SystemDesc = input.SystemDesc,
                Hours = input.Hours
            };
            SqlDbHelper.ExecuteNonQuery(c.InsertSql());
            RefreshClientCache(c);
            return result;
        }



        public ResponseResult UpdateClients(ClientDto input)
        {
            ResponseResult result = new ResponseResult();
            if ( string.IsNullOrEmpty(input.Id) )
            {
                return StringHelper.CheckError("编码字段为空!");
            }
            var check = GetClientInfo(input.Id);
            if (check == null)
            {
                return StringHelper.CheckError("clientId不存在！");
            }
            ClientInfos c = new ClientInfos()
            {
                Id = input.Id,
                ClientName = string.IsNullOrEmpty(input.ClientName)?check.ClientName:input.ClientName,
                ClientState = input.ClientState,
                Password = string.IsNullOrEmpty(input.Password)?check.Password:StringHelper.GenerateMD5(input.Password),
                SystemDesc = string.IsNullOrEmpty(input.SystemDesc)?check.SystemDesc:input.SystemDesc,
                Hours = input.Hours,
                CreatorDate = check.CreatorDate,
                CreatorUserId = check.CreatorUserId,
            };
            SqlDbHelper.ExecuteNonQuery(c.UpdateSql());
            RefreshClientCache(c);
            return result;
        }
        public void WriteCache(string clientId, string topic, string msg)
        {
            var entity = new ReceiveMessageRecord()
            {
                Id = Guid.NewGuid().ToString("N"),
                ClientId = clientId,
                Topic = topic,
                Payload = msg,
                QualityOfServiceLevel= MqttQualityOfServiceLevel.AtLeastOnce,
                CreatorDate = DateTime.Now,
                CreatorUserId = 1
            };
            WriteData(entity);

        }

        public void WriteData(ReceiveMessageRecord pReceiveMessageRecord)
        {
            WriteCache(pReceiveMessageRecord);
            Action ac = () => { WriteRecordToDb(pReceiveMessageRecord); };
            ac.Invoke();
        }
        public void WriteCache(ReceiveMessageRecord pReceiveMessageRecord)
        {

            //List<ReceiveMessageRecord> rs = redisCache.StringGet<List<ReceiveMessageRecord>>(CacheName.TopicMsgCachePrefix + pReceiveMessageRecord.Topic) ?? new List<ReceiveMessageRecord>();
            //if (rs.Any())
            //{
            //    DateTime currentDay = DateTime.Parse(DateTime.Now.ToString("yyyy-MM-dd 00:00:00"));
            //    rs = rs.Where(i => i.CreatorDate > currentDay).Take(100).ToList();
            //}
            //rs.Add(pReceiveMessageRecord);
            //redisCache.StringSet(CacheName.TopicMsgCachePrefix + pReceiveMessageRecord.Topic, rs, TimeSpan.FromDays(1));
            int retainMinute = AppSetting.GetInt("redisMsgTTL");
            redisCache.ListRightPush(CacheName.TopicMsgCachePrefix + pReceiveMessageRecord.Topic, pReceiveMessageRecord, TimeSpan.FromMinutes(retainMinute));


            //List<ReceiveMessageRecord> rs2 = redisCache.StringGet<List<ReceiveMessageRecord>>(CacheName.ClientMsgCachePrefix + pReceiveMessageRecord.ClientId) ?? new List<ReceiveMessageRecord>();
            //if (rs2.Any())
            //{
            //    DateTime currentDay = DateTime.Parse(DateTime.Now.ToString("yyyy-MM-dd 00:00:00"));
            //    rs2 = rs2.Where(i => i.CreatorDate > currentDay).Take(100).ToList();
            //}
            //rs2.Add(pReceiveMessageRecord);
            //redisCache.StringSet(CacheName.ClientMsgCachePrefix + pReceiveMessageRecord.ClientId, rs2, TimeSpan.FromDays(1));
            redisCache.ListRightPush(CacheName.ClientMsgCachePrefix + pReceiveMessageRecord.ClientId, pReceiveMessageRecord, TimeSpan.FromMinutes(retainMinute));
        }

        public void WriteRecordToDb(ReceiveMessageRecord pReceiveMessageRecord)
        {
            try
            {
                SqlDbHelper.ExecuteNonQuery(pReceiveMessageRecord.InsertSql());
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
               
            }
        }
    }
}