public MessageResult ApproveVehicle(VehicleApprovalModel vehicleApprovalModel)
        {
            MessageResult msgResult = new MessageResult();

            try
            {
                SPWeb spWeb = SPContext.Current.Web;

                if (vehicleApprovalModel.Id > 0)
                {
                    Biz.Models.VehicleManagement vehicleManagement = _vehicleManagementDAL.GetByID(vehicleApprovalModel.Id);
                    string currentApprovalStatus = vehicleManagement.ApprovalStatus.ToLower();
                    if (currentApprovalStatus == ApprovalStatus.Approved.ToLower() || currentApprovalStatus == ApprovalStatus.Cancelled.ToLower() || currentApprovalStatus == ApprovalStatus.Rejected.ToLower())
                    {
                        return(new MessageResult {
                            Code = (int)VehicleErrorCode.CannotApprove, Message = MessageResultHelper.GetRequestStatusMessage(currentApprovalStatus), ObjectId = 0
                        });
                    }

                    string requestExpiredMsg = MessageResultHelper.GetRequestExpiredMessage(vehicleManagement.RequestDueDate);
                    if (!string.IsNullOrEmpty(requestExpiredMsg))
                    {
                        return(new MessageResult {
                            Code = (int)VehicleErrorCode.CannotApprove, Message = requestExpiredMsg, ObjectId = 0
                        });
                    }

                    bool            hasApprovalPermission = HasApprovalPermission(vehicleApprovalModel.Id.ToString());
                    DelegationModel delegationModel       = GetDelegatedTaskInfo(vehicleApprovalModel.Id.ToString());
                    bool            isDelegated           = (delegationModel != null && delegationModel.Requester.LookupId > 0) ? true : false;
                    if (hasApprovalPermission == false && isDelegated == false)
                    {
                        return(msgResult);
                    }

                    EmployeeInfoDAL _employeeInfoDAL = new EmployeeInfoDAL(spWeb.Url);
                    EmployeeInfo    approverInfo     = _employeeInfoDAL.GetByADAccount(spWeb.CurrentUser.ID);

                    int assigneeId = hasApprovalPermission == true ? approverInfo.ADAccount.ID : (isDelegated == true ? delegationModel.FromEmployee.ID : 0);

                    TaskManagementDAL      _taskManagementDAL       = new TaskManagementDAL(spWeb.Url);
                    IList <TaskManagement> taskManagementCollection = _taskManagementDAL.GetRelatedTasks(vehicleManagement.ID, StepModuleList.VehicleManagement.ToString());
                    if (taskManagementCollection != null && taskManagementCollection.Count > 0)
                    {
                        TaskManagement        taskOfOriginalAssignee = _taskManagementDAL.GetTaskByAssigneeId(taskManagementCollection, assigneeId);
                        List <TaskManagement> relatedTasks           = taskManagementCollection.Where(t => t.ID != taskOfOriginalAssignee.ID).ToList();
                        User nextAssignee = taskOfOriginalAssignee.NextAssign;

                        if (hasApprovalPermission == true)
                        {
                            taskOfOriginalAssignee.TaskStatus      = TaskStatusList.Completed.ToString();
                            taskOfOriginalAssignee.PercentComplete = 1;
                            taskOfOriginalAssignee.TaskOutcome     = TaskOutcome.Approved.ToString();
                            taskOfOriginalAssignee.Description     = vehicleApprovalModel.Comment;
                            _taskManagementDAL.CloseTasks(relatedTasks);
                            _taskManagementDAL.SaveItem(taskOfOriginalAssignee);
                        }
                        else if (isDelegated == true)
                        {
                            TaskManagement clonedTask = _taskManagementDAL.CloneTask(taskOfOriginalAssignee);
                            clonedTask.AssignedTo      = approverInfo.ADAccount;
                            clonedTask.TaskStatus      = TaskStatusList.Completed.ToString();
                            clonedTask.PercentComplete = 1;
                            clonedTask.TaskOutcome     = TaskOutcome.Approved.ToString();
                            clonedTask.Description     = vehicleApprovalModel.Comment;
                            relatedTasks.Add(taskOfOriginalAssignee);
                            _taskManagementDAL.CloseTasks(relatedTasks);
                            _taskManagementDAL.SaveItem(clonedTask);
                        }

                        if (!string.IsNullOrEmpty(vehicleApprovalModel.Comment))
                        {
                            vehicleManagement.CommonComment = vehicleManagement.CommonComment.BuildComment(string.Format("{0}: {1}", approverInfo.FullName, vehicleApprovalModel.Comment));
                        }

                        if (nextAssignee == null)
                        {
                            vehicleManagement.ApprovalStatus = StringConstant.ApprovalStatus.Approved.ToString();
                            _vehicleManagementDAL.SaveOrUpdate(spWeb, vehicleManagement);

                            EmailTemplateDAL _emailTemplateDAL = new EmailTemplateDAL(spWeb.Url);
                            EmailTemplate    emailTemplate     = _emailTemplateDAL.GetByKey("VehicleManagement_Approve");
                            EmployeeInfo     toUser            = _employeeInfoDAL.GetByID(vehicleManagement.Requester.LookupId);
                            _vehicleManagementDAL.SendEmail(vehicleManagement, emailTemplate, approverInfo, toUser, VehicleTypeOfEmail.Approve, spWeb.Url);
                        }
                        else if (nextAssignee != null && taskManagementCollection != null && taskManagementCollection.Count > 0)
                        {
                            _vehicleManagementDAL.RunWorkFlow(vehicleManagement, taskOfOriginalAssignee);

                            EmailTemplateDAL _emailTemplateDAL = new EmailTemplateDAL(spWeb.Url);
                            EmailTemplate    emailTemplate     = _emailTemplateDAL.GetByKey("VehicleManagement_Request");
                            EmployeeInfo     toUser            = _employeeInfoDAL.GetByADAccount(nextAssignee.ID);
                            _vehicleManagementDAL.SendEmail(vehicleManagement, emailTemplate, approverInfo, toUser, VehicleTypeOfEmail.Request, spWeb.Url);

                            try
                            {
                                List <EmployeeInfo> toUsers = DelegationPermissionManager.GetListOfDelegatedEmployees(toUser.ID, StringConstant.VehicleManagementList.ListUrl, vehicleManagement.ID);
                                _vehicleManagementDAL.SendDelegationEmail(vehicleManagement, emailTemplate, toUsers, spWeb.Url);
                            }
                            catch { }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                msgResult.Code    = (int)VehicleErrorCode.Unexpected;
                msgResult.Message = ex.Message;
            }

            return(msgResult);
        }
        public DelegationModel GetDelegatedTaskInfo(string Id)
        {
            DelegationModel delegationModel = new DelegationModel();

            int listItemId = 0;

            if (int.TryParse(Id, out listItemId))
            {
                string[] viewFields = new string[] { StringConstant.VehicleManagementList.DH, StringConstant.VehicleManagementList.BOD,
                                                     StringConstant.CommonSPListField.ApprovalStatusField, StringConstant.CommonSPListField.CommonDepartmentField };
                string queryStr = $@"<Where>
                                      <Eq>
                                         <FieldRef Name='ID' />
                                         <Value Type='Counter'>{listItemId}</Value>
                                      </Eq>
                                   </Where>";
                string siteUrl  = SPContext.Current.Site.Url;
                List <Biz.Models.VehicleManagement> vehicleManagementCollection = _vehicleManagementDAL.GetByQuery(queryStr, viewFields);
                if (vehicleManagementCollection != null && vehicleManagementCollection.Count > 0)
                {
                    Biz.Models.VehicleManagement vehicleManagement  = vehicleManagementCollection[0];
                    StepManagementDAL            _stepManagementDAL = new StepManagementDAL(siteUrl);
                    var currentStep = _stepManagementDAL.GetStepManagement(vehicleManagement.ApprovalStatus, StepModuleList.VehicleManagement, vehicleManagement.CommonDepartment.LookupId);
                    if (currentStep != null)
                    {
                        TaskManagementDAL     _taskManagementDAL       = new TaskManagementDAL(siteUrl);
                        string                taskQueryStr             = string.Format(@"<Where>
                                  <And>
                                     <Eq>
                                        <FieldRef Name='Status' />
                                        <Value Type='Choice'>{0}</Value>
                                     </Eq>
                                     <And>
                                        <Eq>
                                            <FieldRef Name='StepModule' />
                                            <Value Type='Choice'>{1}</Value>
                                        </Eq>
                                         <And>
                                            <Eq>
                                                <FieldRef Name='CurrentStepStatus' />
                                                <Value Type='Choice'>{2}</Value>
                                            </Eq>
                                            <Eq>
                                                <FieldRef Name='ItemId' />
                                                <Value Type='Number'>{3}</Value>
                                            </Eq>
                                         </And>
                                     </And>
                                  </And>
                               </Where>", TaskStatusList.InProgress.ToString(), StepModuleList.VehicleManagement.ToString(), vehicleManagement.ApprovalStatus, vehicleManagement.ID);
                        List <TaskManagement> taskManagementCollection = _taskManagementDAL.GetByQuery(taskQueryStr);
                        if (taskManagementCollection != null)
                        {
                            EmployeeInfoDAL _employeeInfoDAL = new EmployeeInfoDAL(siteUrl);
                            foreach (var taskManagement in taskManagementCollection)
                            {
                                EmployeeInfo assigneeInfo = _employeeInfoDAL.GetByADAccount(taskManagement.AssignedTo.ID);
                                Delegation   delegation   = DelegationPermissionManager.IsDelegation(assigneeInfo.ID, StringConstant.VehicleManagementList.ListUrl, vehicleManagement.ID);
                                delegationModel = new DelegationModel(delegation);
                                if (delegationModel.Requester.LookupId > 0)
                                {
                                    break;
                                }
                            }
                        }
                    }
                }
            }

            return(delegationModel);
        }