using System.Collections.Generic;
using System.Linq;
using Model;
using BLL;
using System.Web.Mvc;
namespace Lib
{
    public class LoginFilter : BaseAuthorizeAttribute
    {
        private bool ValidateLogin = true;

        private bool ValidateRequest = true;

        public LoginFilter()
            : base()
        {

        }

        public LoginFilter(bool _validateLogin)
            : base()
        {
            this.ValidateLogin = _validateLogin;
        }

        public LoginFilter(bool _validateLogin, bool _validateRequest)
            : base()
        {
            this.ValidateLogin = _validateLogin;
            this.ValidateRequest = _validateRequest;
        }

        public override void OnAuthorization(AuthorizationContext filterContext)
        {
            if (this.ValidateLogin)
            {
                UserInfo LoginUser = filterContext.HttpContext.Session["wms-session-userinfo"] as UserInfo;
                string path = filterContext.HttpContext.Request.Path;
                if (LoginUser == null)
                {
                    string url = "/Login/Login";
                    if (!string.IsNullOrEmpty(path))
                    {
                        path = filterContext.HttpContext.Server.UrlEncode(path);
                        url = url + "?returnurl=" + path;
                    }
                    filterContext.Result = new RedirectResult(url);
                }
                else
                {
                    if (ValidateRequest && path != "/")
                    {
                        if (!HasPower(path, LoginUser.UserCode))
                        {
                            string url = "/Home/Error";
                            filterContext.Result = new RedirectResult(url);
                        }
                    }
                }
            }
        }

        /// <summary>
        /// 判断是否有权限操作
        /// </summary>
        /// <param name="ResNum"></param>
        /// <param name="RoleNum"></param>
        /// <returns></returns>
        public bool HasPower(string ResNum, string RoleNum)
        {
            IDALGerUserMenu provider = new DALGetUserMenu();
            List<ResMenu> ListResult = provider.GetList(RoleNum).ToList();
            ListResult = ListResult == null? new List<ResMenu>() : ListResult;
            bool hasPower = ListResult.Exists(a => a.ResNum.ToLower() == ResNum.ToLower() || (a.Url != null &&　a.Url.ToLower() == ResNum.ToLower()));
            //超级管理员权限
            //if (RoleNum == "SuperUser" || RoleNum=="D001")//ResourceManager.GetSettingEntity("Super_AdminRole").Value
            //{
                hasPower = true;
            //}
            return hasPower;
        }
    }
}