using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IStation.RedisCache
{
    /// <summary>
    /// 监测记录缓存辅助类
    /// </summary>
    public class MonitorRecordCacheHelper
    {

        //Redis客户端辅助类对象
        private readonly RedisClientHelper _redisClient = new RedisClientHelper();

        private static string CreateRedisKey(long monitorPointId) 
        {
            return $"linux_test:{monitorPointId}";
        }

        //最后一条记录
        private const string _lastRecord = "last-record";


        #region 最后一条记录

        /// <summary>
        /// 设置最后一条记录
        /// </summary>
        public void SetLastRecord(Model.MonitorRecord model)
        {
            if (model == null)
                return;
            var redisKey = CreateRedisKey(model.MonitorPointID);
            _redisClient.HashSetJosn(redisKey, _lastRecord, model);
        }

        /// <summary>
        /// 设置最后一条记录
        /// </summary>
        public void SetLastRecord(IEnumerable<Model.MonitorRecord> list)
        {
            if (list == null || list.Count() < 1)
                return;
            foreach (var item in list)
            {
                SetLastRecord(item);
            }
        }

        /// <summary>
        /// 获取最后一条记录
        /// </summary>
        public Model.MonitorRecord GetLastRecord(long monitorPointId) 
        {
            var redisKey = CreateRedisKey(monitorPointId);
            return _redisClient.HashGetJson<Model.MonitorRecord>(redisKey, _lastRecord);
        }

        /// <summary>
        /// 获取最后一条记录
        /// </summary>
        public List<Model.MonitorRecord> GetLastRecord(IEnumerable<long> monitorPointIds)
        {
            if (monitorPointIds == null || monitorPointIds.Count() < 1)
                return default;
            return monitorPointIds.Select(x => GetLastRecord(x)).Where(x => x != null).ToList();
        }


        #endregion



    }
}