using ce.autofac.extension;
using Microsoft.AspNetCore.Http;

namespace learun.util
{
	/// <summary>
	/// 版 本 EasyCode EC管理后台
	/// Copyright (c) 2019-present EC管理有限公司
	/// 创建人：tobin
	/// 日 期：2019.09.11
	/// 描 述：上下文上下文帮助类
	/// </summary>
	public static class ContextHelper
	{
		/// <summary>
		/// 获取上下文值
		/// </summary>
		/// <param name="key">键</param>
		/// <returns></returns>
		public static object GetItem(string key)
		{
			var accessor = IocManager.Instance.GetService<IHttpContextAccessor>();
			accessor.HttpContext.Items.TryGetValue(key, out object res);
			return res;
		}

		/// <summary>
		/// 设置上下文值
		/// </summary>
		/// <param name="key">键</param>
		/// <param name="value">值</param>
		public static void SetItem(string key, string value)
		{
			var accessor = IocManager.Instance.GetService<IHttpContextAccessor>();
			if (accessor.HttpContext.Items.ContainsKey(key))
			{
				accessor.HttpContext.Items.Remove(key);
			}
			accessor.HttpContext.Items.Add(key, value);
		}

		/// <summary>
		/// 移除上下文值
		/// </summary>
		/// <param name="key"></param>
		public static void RemoveItem(string key)
		{
			var accessor = IocManager.Instance.GetService<IHttpContextAccessor>();
			if (accessor.HttpContext.Items.ContainsKey(key))
			{
				accessor.HttpContext.Items.Remove(key);
			}
		}
	}
}