using System;
using System.Configuration;
using CommonTool;
using YZXYH.Repository.Models;

namespace YZXYH.Repository
{
	public partial class AlumUserRepository
	{

		/// <summary>
		/// 用户登录
		/// </summary>
		/// <param name="pcUserNo">用户账号</param>
		/// <param name="pcPassword">密码</param>
		/// <param name="pcErrorMsg">错误信息</param>
		/// <param name="pcUserType">用户类型</param>
		/// <param name="isCookie">是否自动登录</param>
		/// <returns></returns>
		public bool Login(string pcUserNo, string pcPassword, ref string pcErrorMsg,UserType pcUserType,bool isCookie)
		{
			if (pcErrorMsg == null) throw new ArgumentNullException(nameof(pcErrorMsg));
			pcErrorMsg = "";
			bool lbRetval = false;
			string lcMsg = "失败";
			string loPassword;
			string loName;
			string loGraduationYear = "";
			string lcSessionName;
			string lcUserNo;
			if (pcUserType==UserType.GeneralUser)
			{
				if (!IsExist(u => u.Mobile == pcUserNo && u.IsLocked == "N"))
				{
					pcErrorMsg = "用户手机号码不存在!";
					return false;
				}
				AlumUser loAlumUser = GetSingle(u => u.Mobile == pcUserNo);
				lcUserNo = loAlumUser.Id;
				pcUserType = loAlumUser.GraduationYear == "0000" ? UserType.TeacherUser : pcUserType;
				loName = loAlumUser.Name;
				loPassword = loAlumUser.Password;
				loGraduationYear = loAlumUser.GraduationYear;
				lcSessionName = ConfigurationManager.AppSettings["UserInfoSession"];
			}
			
			else
			{
				if (!UnitOfWork.SysUserRepository.IsExist(u => u.SysNo == pcUserNo && u.IsLocked == "N"&&u.TimeExpiration.CompareTo(DateTime.Now)>0))
				{
					pcErrorMsg = "用户账号不存在或已被锁定（过期）!";
					return false;
				}
				
				SysUser loSysUser = UnitOfWork.SysUserRepository.GetSingle(u => u.SysNo == pcUserNo);
				lcUserNo = loSysUser.Id;
				loName = loSysUser.SysName;
				loPassword = loSysUser.SysPassword;
				lcSessionName = ConfigurationManager.AppSettings["SysUserInfoSession"];
			}
			
			pcPassword = SysSecurity.Encrypt4CPlus(pcPassword.Trim());
			if (loPassword == pcPassword.Trim())
			{
				lbRetval = true;
				lcMsg = "成功";
				string lcGuid = UtilRandom.GetGuid();
				SysUserInfo loUserInfo = new SysUserInfo(lcUserNo, pcPassword, loName, pcUserType)
				{
					UserGuid = lcGuid
				};
				UserListSession.Instance.Add(lcGuid, loUserInfo);
				SessionHelper.Instance.AddSession(lcSessionName, lcGuid, 30);
				if (isCookie)
				{
					string lcCookieName = ConfigurationManager.AppSettings["SysUserInfoCookie"];
					CookieHelper.Instance.WriteCookie(lcCookieName,
						CookieHelper.Instance.BuildCookueValue(SysSecurity.Encrypt(JsonHelper.Instance.Serialize(loUserInfo)), 3000));
				}
			}
			else
			{
				pcErrorMsg = "登录密码错误";
			}
			UnitOfWork.UserLastLoginRepository.InsertNoId(new UserLastLogin()
			{
				UserNo = lcUserNo,
				TimeLastLogin = DateTime.Now,
				IpAddress = IpHelper.Instance.GetClientIp()

			});
			UnitOfWork.SysLogRepository.AddLog(pcUserType + " | Login", " 登录 " + lcMsg,
				loName + "|" + pcUserNo, pcErrorMsg, loGraduationYear);

			return lbRetval;
		}

		/// <summary>
		/// 检查用户的登录是否有效
		/// </summary>
		/// <returns></returns>
		public bool CheckLogin()
		{
			bool lbRetval = false;
			string lcSessionName = ConfigurationManager.AppSettings["UserInfoSession"];
			string lcToken = SessionHelper.Instance.GetSession(lcSessionName);
			SessionHelper.Instance.DelSession(lcSessionName);
			if (string.IsNullOrEmpty(lcToken))
				return false;
			if (CheckLogin(lcToken))
			{
				SessionHelper.Instance.AddSession(lcSessionName, lcToken, 30);
				lbRetval = true;
			}
			return lbRetval;
		}

		/// <summary>
		/// 根据Token检查用户登录
		/// </summary>
		/// <param name="pcToken">Token</param>
		/// <param name="pcValidate">需验证Token密码</param>
		/// <returns></returns>
		public bool CheckLogin(string pcToken, bool pcValidate = false)
		{
			bool lbRetval = UserListSession.Instance.IsContainsKey(pcToken);
			if (pcValidate && lbRetval)
			{
				SysUserInfo loUserInfo = UserListSession.Instance.GetUserInfoByGuid(pcToken);
				string lcMobile = loUserInfo.UserNo;
				string lcPassword = loUserInfo.Password;
				AlumUser loAlumUser = GetSingle(u => u.Mobile == lcMobile && u.IsLocked == "N");
				lbRetval = lcPassword == loAlumUser.Password;
			}
			return lbRetval;
		}

		/// <summary>
		/// 修改密码
		/// </summary>
		/// <param name="pcMobile">手机号</param>
		/// <param name="pcOldPassword">原密码</param>
		/// <param name="pcNewPassword">新密码</param>
		/// <param name="pcMsg">操作信息</param>
		/// <param name="sysUserInfo"></param>
		/// <returns></returns>
		public bool ModifyPassword(string pcMobile, string pcOldPassword, string pcNewPassword, ref string pcMsg, SysUserInfo sysUserInfo)
		{
			if (pcMsg == null) throw new ArgumentNullException(nameof(pcMsg));
			bool lbRetval = false;
			string lcErrorMsg="";
			AlumUser alum = GetSingle(a => a.Mobile == pcMobile && a.IsLocked == "N");
			if (alum != null)
			{
				if (SysSecurity.Encrypt4CPlus(pcOldPassword.Trim()) == alum.Password)
				{
					Update(a => a.Mobile == pcMobile, a => new AlumUser {Password = SysSecurity.Encrypt4CPlus(pcNewPassword.Trim())});
					if (Save())
					{
						pcMsg = "修改密码成功";
						lbRetval = true;
					}
					else
					{
						pcMsg = "修改密码失败";
						lcErrorMsg = "保存修改失败";
					}
				}
				else
				{
					pcMsg = "修改密码失败，原密码错误！";
					lcErrorMsg = "原密码错误";
				}
				UnitOfWork.SysLogRepository.AddLog(sysUserInfo.UserType+" | Modify",  pcMsg,
					alum.Name + "|" + alum.Mobile, lcErrorMsg, alum.GraduationYear);
			}
			else
			{
				pcMsg = "用户不存在或已被锁定！";
			}
			
			return lbRetval;
		}
	}
}