using BaseOUDAL;
using YLErp.Helpers;

namespace YLErp.Modules.SubAppModule.ClientApp
{
    /// <summary>
    /// 客户用户密码服务
    /// </summary>
    public class ClientUserPasswordService : BaseService<ClientDBContext>
    {
        public ClientUserPasswordService(OptUserInfo optUser) : base(optUser)
        {

        }

        /// <summary>
        /// 重置密码
        /// </summary>
        public string ResetPassword(int clientId)
        {
            var clientDB = DbContextFactory.GetClientDbContext(UserInfo);
            var client = clientDB.client.FirstOrDefault(s => s.id == clientId);

            if (client == null)
            {
                throw new ServiceException("该客户不存在");
            }

            if (string.IsNullOrEmpty(client.DefaultLoginName))
            {
                throw new ServiceException("请先设置该客户的默认登录名");
            }

            if (DbContext.ClientUser.Any(x => x.ClientId != clientId && x.LoginName == client.DefaultLoginName))
            {
                return "该客户默认登录名已经被占用，请修改后再确认";
            }

            if (string.IsNullOrEmpty(client.Guid))
            {
                client.Guid = Guid.NewGuid().ToString();
            }

            var password = DataHelper.GenerateCheckCode(6);
            var clientUser = DbContext.ClientUser.FirstOrDefault(x => x.ClientId == client.id);

            if (clientUser == null)
            {
                clientUser = new ClientUser()
                {
                    ClientId = client.id,
                    LoginName = client.DefaultLoginName,
                    Password = DataHelper.EncryptPassword(client.DefaultLoginName.ToLower(), password)
                };
                SetDBModelOpt(clientUser);
                DbContext.ClientUser.Add(clientUser);
            }
            else
            {
                clientUser.Password = DataHelper.EncryptPassword(client.DefaultLoginName.ToLower(), password);
            }

            // 要向该客户的所有订阅了邮件通知的人员发送邮件
            var emails = ClientModule.ClientDataQueryService.GetClientEmails(client.id);
            if (!emails.Any(n => !string.IsNullOrEmpty(n)))
            {
                throw new ServiceException("未设置邮箱，无法发送用户名密码");
            }

            var sendMail = EmailHelper.SendMail(string.Join(";", emails), PS.Config.CompanyFullName + "-场外衍生品客户服务用户密码设置"
                , string.Format("<p>{1}：</p><p><br/></p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;您在我司场外衍生品客户服务系统的登录账号和密码信息如下：</p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;登录用户名:{2}, 密码:{3}</p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;建议使用Chrome浏览器！</p><p><br/></p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{0}</p>"
                , PS.Config.CompanyFullName, client.Name, client?.DefaultLoginName ?? client.DefaultLoginName, password));

            if (string.IsNullOrEmpty(sendMail))
            {
                clientDB.ClientAuditLog.Add(new ClientAuditLog
                {
                    ClientId = client.id,
                    OptType = "重置密码",
                    Changes = string.Empty,
                    DataType = "00",
                    OptId = UserId,
                    OptName = UserName,
                    OptDate = DateTime.Now
                });
                clientDB.SaveChanges();
                DbContext.SaveChanges();
                return "发送用户名密码成功";
            }
            else
            {
                LogFactory.GetLogger("客户密码重置").Error("发送邮件失败:" + sendMail);
                throw new ServiceException("发送用户名密码失败");
            }
        }

        /// <summary>
        /// 变更密码
        /// </summary>
        public void ChangePassword(ClientChangePasswordRequest reqModel)
        {
            if (reqModel is null)
            {
                throw new ArgumentNullException(nameof(reqModel));
            }

            if (string.IsNullOrWhiteSpace(reqModel.Password))
            {
                throw new ServiceException("输入错误,缺少当前密码");
            }

            if (string.IsNullOrWhiteSpace(reqModel.NewPassword))
            {
                throw new ServiceException("输入错误,缺少新密码");
            }

            if (reqModel.NewPassword == null || reqModel.NewPassword.Length < 6 || !reqModel.NewPassword.Any(n => (n >= 'a' && n <= 'z') || (n >= 'A' && n <= 'Z')) || !reqModel.NewPassword.Any(n => n >= '0' && n <= '9'))
            {
                throw new ServiceException("密码长度至少6位并且包含英文字母和数字");
            }

            var clientDB = DbContextFactory.GetClientDbContext(UserInfo);

            if (!clientDB.client.Any(c => c.id == reqModel.ClientId))
            {
                throw new ServiceException("客户信息不存在");
            }

            var cuser = DbContext.ClientUser.FirstOrDefault(c => c.id == reqModel.ClientId);

            if (cuser == null)
            {
                throw new ServiceException("用户不存在");
            }

            if (!DataHelper.EncryptPassword(cuser.LoginName.ToLowerInvariant(), reqModel.Password).Equals(cuser.Password, StringComparison.OrdinalIgnoreCase))
            {
                throw new ServiceException("当前密码错误");
            }

            cuser.Password = DataHelper.EncryptPassword(cuser.LoginName.ToLowerInvariant(), reqModel.NewPassword);

            DbContext.SaveChanges();
        }
    }
}