using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;

namespace APT.Infrastructure.Utility
{
    public static class CsRedisHelper<T> where T : class
    {
        public static RedisClass GetRedisClass()
        {
            var type = typeof(T);
            var attribute = type.GetCustomAttributes(typeof(RedisAttribute), false).FirstOrDefault() as RedisAttribute;
            if (attribute == null)
            {
                return null;
            }

            var attributelist = type.GetCustomAttributes(typeof(RedisAttribute), false).FirstOrDefault() as RedisAttribute;
            if (attribute == null)
            {
                return null;
            }

            var key = attribute.Key;
            var props = type.GetProperties();
            var redisClass = new RedisClass();
            redisClass.ClassName = type.Name;
            redisClass.GroupName = attribute.GroupField;
            redisClass.DicKeys = new Dictionary<string, string>();
            if (key.Any())
            {
                foreach (var k in key)
                {
                    var prp = props.FirstOrDefault(i => i.Name == k);
                    redisClass.DicKeys.Add(k, prp.PropertyType.Name);
                }

            }
            else
            {
                redisClass.DicKeys.Add("ID", "GUID");
            }

            return redisClass;
        }

    }

    public class RedisClass
    {
        public string ClassName { get; set; }

        public string GroupName { get; set; }
        public Dictionary<string,string> DicKeys { get; set; }
    }

}