namespace BLL
{
    using System;
    using System.Collections;
    using System.Diagnostics.CodeAnalysis;
    using System.Globalization;
    using System.Linq;
    using System.Data.Linq;
    using System.Web.Security;
    using System.Web.UI.WebControls;
    using Model;
    using BLL;
    using System.Collections.Generic;

    public static class Sys_UserService
    {

        public static (string, string) GetSingtrueImageUrl(string userId)
        {
            var result = (from a in Funs.DB.Sys_User
                          join
                         b in Funs.DB.Base_Unit on a.UnitId equals b.UnitId
                          join c in Funs.DB.Base_UnitType on b.UnitTypeId equals c.UnitTypeId
                          where a.UserId == userId
                          select new
                          {
                              a.SigntrueImage,
                              c.UnitTypeName
                          }).FirstOrDefault();

            if (result != null)
            {
                return (result.SigntrueImage, result.UnitTypeName);
            }
            return (null, null);
        }

        /// <summary>
        /// 用户登陆方法
        /// </summary>
        /// <param name="loginname">登陆名</param>
        /// <param name="password">未加密密码</param>
        /// <param name="rememberMe">记住我开关</param>
        /// <param name="page">调用页面</param>
        /// <returns>是否登陆成功</returns>
        public static bool UserLogOn(string account, string password,string projectArea, bool rememberMe, System.Web.UI.Page page)
        {
            bool IsSuccess = false;
            var q = from y in Funs.DB.Sys_User where y.Account == account select y;
            List<Model.Sys_User> x = null;
            if (q.Count() > 0)
            {
                x = (from y in Funs.DB.Sys_User
                     where y.Account == account && y.IsPost == true
                     && y.Password == EncryptionPassword(password)
                     select y).ToList();
                if (x.Any())
                {
                    FormsAuthentication.SetAuthCookie(account, false);
                    Model.Sys_User s = x.First();
                    s.LoginProjectArea = projectArea;
                    page.Session[SessionName.CurrUser] = s;

                    if (rememberMe)
                    {
                        System.Web.HttpCookie u = new System.Web.HttpCookie("UserInfo");
                        u["username"] = account;
                        u["projectArea"] = projectArea;
                        //u["password"] = null;
                        // Cookies过期时间设置为一年.
                        u.Expires = DateTime.Now.AddYears(1);
                        //u.Secure = true;
                        page.Response.Cookies.Add(u);
                    }
                    else
                    {
                        // 当选择不提交用户名时,Cookies过期时间设置为昨天.
                        page.Response.Cookies["UserInfo"].Expires = DateTime.Now.AddDays(-1);
                        page.Response.Cookies["UserInfo"].Secure = true;
                    }
                    IsSuccess = true;
                    // 如果登陆成功则数次置为0,锁定时间置空
                    UpdateErrorNum(q.First().UserId, 0);
                    UpdateLockTime(q.First().UserId, null);

                    //page.Application.Lock();
                    //page.Application["IsValiad"] = true;
                    //page.Application.UnLock();
                }
                else
                {
                    int errorNum = q.First().ErrorNum != null ? q.First().ErrorNum.Value : 0;
                    UpdateErrorNum(q.First().UserId, errorNum + 1);
                    // 如果密码输入错误10次则账户锁定
                    if (errorNum + 1 == 10)
                    {
                        UpdateLockTime(q.First().UserId, DateTime.Now);
                    }
                }
            }

            return IsSuccess;
        }

        /// <summary>
        /// 修改登陆错误次数
        /// </summary>
        /// <param name="userId"></param>
        /// <param name="errorNum"></param>
        public static void UpdateErrorNum(string userId, int errorNum)
        {
            Model.HJGLDB db = Funs.DB;
            Model.Sys_User m = db.Sys_User.FirstOrDefault(e => e.UserId == userId);
            m.ErrorNum = errorNum;
            db.SubmitChanges();
        }

        /// <summary>
        /// 修改登陆锁定时间
        /// </summary>
        /// <param name="userId"></param>
        /// <param name="lockTime"></param>
        public static void UpdateLockTime(string userId, DateTime? lockTime)
        {
            Model.HJGLDB db = Funs.DB;
            Model.Sys_User m = db.Sys_User.FirstOrDefault(e => e.UserId == userId);
            m.LockTime = lockTime;
            db.SubmitChanges();
        }


        /// <summary>
        /// 加密密码
        /// </summary>
        /// <param name="password">加密前的密码</param>
        /// <returns>加密后的密码</returns>
        public static string EncryptionPassword(string password)
        {
            return FormsAuthentication.HashPasswordForStoringInConfigFile(password, "MD5");
        }

        /// <summary>
        /// 获取用户信息
        /// </summary>
        /// <param name="userId">用户Id</param>
        /// <returns>用户信息</returns>
        public static Model.Sys_User GetUsersByUserId(string userId)
        {
            Model.Sys_User m = Funs.DB.Sys_User.FirstOrDefault(e => e.UserId == userId);
            return m;
        }


        /// <summary>
        /// 获取用户账号是否存在
        /// </summary>
        /// <param name="userId">用户id</param>
        /// <param name="account">账号</param>
        /// <param name="projectId">项目ID</param>
        /// <returns>是否存在</returns>
        public static bool IsExistUserAccount(string userId, string account)
        {
            bool isExist = false;
            var user  = Funs.DB.Sys_User.FirstOrDefault(x => x.Account == account && x.UserId != userId);
            if (user != null)
            {
                isExist = true;
            }
            return isExist;
        }

        
        /// <summary>
        /// 根据用户Id查询所有用户的数量
        /// </summary>
        /// <param name="userId">用户Id</param>
        /// <returns>用户的数量</returns>
        public static int GetUserCount(string userId)
        {
            var q = (from x in Funs.DB.Sys_User where x.UserId == userId select x).ToList();
            return q.Count();
        }

        /// <summary>
        /// 根据用户获取密码
        /// </summary>
        /// <param name="userId"></param>
        /// <returns></returns>
        public static string GetPasswordByUserId(string userId)
        {
            Model.Sys_User m = Funs.DB.Sys_User.FirstOrDefault(e => e.UserId == userId);
            return m.Password;
        }

        /// <summary>
        /// 根据用户ID获取名称
        /// </summary>
        /// <param name="userId"></param>
        /// <returns></returns>
        public static string GetUserNameByUserId(string userId)
        {
            string userName = string.Empty;
            Model.Sys_User m = Funs.DB.Sys_User.FirstOrDefault(e => e.UserId == userId);
            if (m != null)
            {
                userName = m.UserName;
            }
            return userName;
        }

        /// <summary>
        /// 修改密码
        /// </summary>
        /// <param name="userId"></param>
        /// <param name="password"></param>
        public static void UpdatePassword(string userId, string password)
        {
            Model.HJGLDB db = Funs.DB;
            Model.Sys_User m = db.Sys_User.FirstOrDefault(e => e.UserId == userId);
            m.Password = EncryptionPassword(password);
            db.SubmitChanges();
        }

        /// <summary>
        /// 增加人员信息
        /// </summary>
        /// <param name="user">人员实体</param>
        public static void AddUser(Model.Sys_User user)
        {
            Model.HJGLDB db = Funs.DB;
            Model.Sys_User newUser = new Model.Sys_User();
            newUser.UserId = user.UserId;
            newUser.Account = user.Account;
            newUser.UserCode = user.UserCode;
            newUser.Password = user.Password;
            newUser.UserName = user.UserName;
            newUser.UnitId = user.UnitId;
            newUser.Depart = user.Depart;
            newUser.RoleIds = user.RoleIds;
            newUser.SigntrueImage = user.SigntrueImage;
            newUser.IsPost = user.IsPost;
            newUser.Email = user.Email;
            newUser.EmailPassword = user.EmailPassword;
            newUser.AllowLoginSystem = user.AllowLoginSystem;

            db.Sys_User.InsertOnSubmit(newUser);
            db.SubmitChanges();
        }

        /// <summary>
        /// 修改人员信息
        /// </summary>
        /// <param name="user">人员实体</param>
        public static void UpdateUser(Model.Sys_User user)
        {
            Model.HJGLDB db = Funs.DB;
            Model.Sys_User newUser = db.Sys_User.FirstOrDefault(e => e.UserId == user.UserId);
            if (newUser != null)
            {
                newUser.Account = user.Account;
                newUser.UserCode = user.UserCode;
                newUser.UserName = user.UserName;
                newUser.UnitId = user.UnitId;
                newUser.Depart = user.Depart;
                newUser.RoleIds = user.RoleIds;
                newUser.IsPost = user.IsPost;
                newUser.SigntrueImage = user.SigntrueImage;
                newUser.Email = user.Email;
                if (!String.IsNullOrEmpty(user.EmailPassword))
                {
                    newUser.EmailPassword = user.EmailPassword;
                }
                newUser.AllowLoginSystem = user.AllowLoginSystem;

                db.SubmitChanges();
            }
        }

        /// <summary>
        /// 根据人员Id删除一个人员信息
        /// </summary>
        /// <param name="userId"></param>
        public static void DeleteUser(string userId)
        {
            Model.HJGLDB db = Funs.DB;
            Model.Sys_User user = db.Sys_User.FirstOrDefault(e => e.UserId == userId);
            var log = from x in Funs.DB.Sys_Log where x.UserId == userId select x;
            if (user != null)
            {
                if (log.Count() > 0)
                {
                    db.Sys_Log.DeleteAllOnSubmit(log);
                }
                db.Sys_User.DeleteOnSubmit(user);
                db.SubmitChanges();
            }
        }

        /// <summary>
        /// 根据单位主键获得用户
        /// </summary>
        /// <param name="unitId">单位主键</param>
        /// <returns></returns>
        public static List<Model.Sys_User> GetUsersByUnitId(string unitId)
        {
            var q = (from x in Funs.DB.Sys_User where x.UnitId == unitId select x).ToList();
            return q;
        }


        /// <summary>
        /// 查询所有在岗的用户
        /// </summary>
        /// <returns></returns>
        public static List<Model.Sys_User> GetUserList()
        {
            return (from x in Funs.DB.Sys_User where x.IsPost == true orderby x.UserName select x).ToList();
        }

        public static Model.Sys_User GetUsersByUserName(string userName)
        {
            return Funs.DB.Sys_User.FirstOrDefault(e => e.UserName == userName);
        }
    }
}