using Snowflake.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace wms.util.Check
{
    public static class CheckId
    {
        public static T InitId<T>(T reqEntity) where T : class
        {
            Type entityType = reqEntity.GetType();
            var idProp = entityType.GetProperty("Id");
            if (idProp == null)
            {
                return reqEntity;
            }
            object Id = idProp.GetValue(reqEntity);
            if (Convert.ToInt64(Id) <= 0)
            {
                idProp.SetValue(reqEntity, IdFactory.NewId(), null);
            }
            return reqEntity;
        }
        public static List<T> InitId<T>(List<T> reqEntity) where T : class
        {
            if (!reqEntity.Any()) { return reqEntity; }
            for (int i = 0; i < reqEntity.Count; i++)
            {
                reqEntity[i] = InitId(reqEntity[i]);
            }
            return reqEntity;
        }
    }
    public static class IdFactory
    {
        private static readonly object locker = new object();
        private static IdWorker _idworker;
        public static IdWorker GetInstance()
        {
            if (_idworker == null)
            {
                lock (locker)
                {
                    if (_idworker == null)
                    {
                        _idworker = new IdWorker(1, 1);
                    }
                }
            }
            return _idworker;
        }
        public static long NewId()
        {
            return GetInstance().NextId();
        }
    }
}