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/*
 * Copyright (C) 2017, 2018 Free Software Foundation
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.mxchange.jfinancials.beans.business.employee;

import javax.ejb.EJB;
import javax.enterprise.context.RequestScoped;
import javax.enterprise.event.Event;
import javax.enterprise.inject.Any;
import javax.inject.Inject;
import javax.inject.Named;
import org.mxchange.jcontacts.model.contact.Contact;
import org.mxchange.jcontactsbusiness.events.employee.added.EmployeeAddedEvent;
import org.mxchange.jcontactsbusiness.events.employee.added.ObservableEmployeeAddedEvent;
import org.mxchange.jcontactsbusiness.exceptions.employee.EmployeeAlreadyAddedException;
import org.mxchange.jcontactsbusiness.model.basicdata.BasicData;
import org.mxchange.jcontactsbusiness.model.branchoffice.BranchOffice;
import org.mxchange.jcontactsbusiness.model.department.Department;
import org.mxchange.jcontactsbusiness.model.employee.AdminEmployeeSessionBeanRemote;
import org.mxchange.jcontactsbusiness.model.employee.BusinessEmployee;
import org.mxchange.jcontactsbusiness.model.employee.Employable;
import org.mxchange.jcontactsbusiness.model.employee.Employees;
import org.mxchange.jcontactsbusiness.model.headquarter.Headquarter;
import org.mxchange.jfinancials.beans.BaseFinancialsBean;
import org.mxchange.jphone.model.phonenumbers.mobile.DialableMobileNumber;
import org.mxchange.jphone.model.phonenumbers.mobile.MobileNumber;
import org.mxchange.jphone.model.phonenumbers.mobileprovider.MobileProvider;
import org.mxchange.jusercore.model.user.User;

/**
 * A request-scoped bean for administrative purposes for administrative employee
 * purposes.
 * <p>
 * @author Roland Häder<roland@mxchange.org>
 */
@Named ("adminEmployeeController")
@RequestScoped
public class FinancialsAdminEmployeeWebRequestBean extends BaseFinancialsBean implements FinancialsAdminEmployeeWebRequestController {

        /**
         * Serial number
         */
        private static final long serialVersionUID = 12_886_968_547_360L;

        /**
         * An event being fired when an employee has been added
         */
        @Inject
        @Any
        private Event<ObservableEmployeeAddedEvent> addedEmployeeEvent;

        /**
         * EJB for administrative company employee purposes
         */
        @EJB (lookup = "java:global/jfinancials-ejb/adminEmployee!org.mxchange.jcontactsbusiness.model.employee.AdminEmployeeSessionBeanRemote")
        private AdminEmployeeSessionBeanRemote adminEmployeeBean;

        /**
         * Assigned basic data instance
         */
        private BasicData employeeBasicData;

        /**
         * Assigned branch office
         */
        private BranchOffice employeeBranchOffice;

        /**
         * General employee controller
         */
        @Inject
        private FinancialsEmployeeWebRequestController employeeController;

        /**
         * Department where employee works (alternative to headquarter)
         */
        private Department employeeDepartment;

        /**
         * Employee's business email address
         */
        private String employeeEmailAddress;

        /**
         * Employee's Headquarter data, if he is working there
         */
        private Headquarter employeeHeadquarter;

        /**
         * Employee's staff number
         */
        private String employeeNumber;

        /**
         * Assigned personal data of the employee
         */
        private Contact employeePersonalData;

        /**
         * Employee's phone extension (on top of a "main number")
         */
        private Integer employeePhoneExtension;

        /**
         * Assigned user account
         */
        private User employeeUserOwner;

        /**
         * Mobile number for employee's business mobile
         */
        private Long mobileNumber;

        /**
         * Mobile provider instance for employee's business mobile
         */
        private MobileProvider mobileProvider;

        /**
         * Default constructor
         */
        public FinancialsAdminEmployeeWebRequestBean () {
                // Call super constructor
                super();
        }

        /**
         * Adds branch office with all data from this backing bean. First this
         * action method will validate if the branch office's address is already
         * registered and if found, it will output a proper faces message.
         * <p>
         * @return Redirect outcome
         */
        public String addEmployee () {
                // Get instance
                final Employable employee = this.createEmployee();

                // Is the branch office not created yet?
                if (this.isEmployeeCreatedByRequiredData(employee)) {
                        // Then show proper faces message
                        this.showFacesMessage("form-admin-add-employee:employeeNumber", "ADMIN_EMPLOYEE_ALREADY_CREATED"); //NOI18N
                        return ""; //NOI18N
                }

                // Delcare updated instance
                final Employable updatedOffice;

                try {
                        // Try to call EJB
                        updatedOffice = this.adminEmployeeBean.addEmployee(employee);
                } catch (final EmployeeAlreadyAddedException ex) {
                        // Output message
                        this.showFacesMessage("form-admin-add-employee:employeeNumber", "ADMIN_EMPLOYEE_ALREADY_CREATED"); //NOI18N
                        return ""; //NOI18N
                }

                // Fire event
                this.addedEmployeeEvent.fire(new EmployeeAddedEvent(updatedOffice));

                // Clear this bean
                this.clear();

                // Redirect to list
                return "admin_list_branch_office"; //NOI18N
        }

        /**
         * Getter for employee's assigned branch office
         * <p>
         * @return Employee's assigned branch office
         */
        public BranchOffice getEmployeeBranchOffice () {
                return this.employeeBranchOffice;
        }

        /**
         * Setter for employee's assigned branch office
         * <p>
         * @param employeeBranchOffice Employee's assigned branch office
         */
        public void setEmployeeBranchOffice (final BranchOffice employeeBranchOffice) {
                this.employeeBranchOffice = employeeBranchOffice;
        }

        /**
         * Getter for employee's assigned basic company data
         * <p>
         * @return Employee's assigned basic company data
         */
        public BasicData getEmployeeBasicData () {
                return this.employeeBasicData;
        }

        /**
         * Setter for employee's assigned basic company data
         * <p>
         * @param employeeBasicData Employee's assigned basic company data
         */
        public void setEmployeeBasicData (final BasicData employeeBasicData) {
                this.employeeBasicData = employeeBasicData;
        }

        /**
         * Getter for employee's assigned department
         * <p>
         * @return Employee's assigned department
         */
        public Department getEmployeeDepartment () {
                return this.employeeDepartment;
        }

        /**
         * Setter for employee's assigned department
         * <p>
         * @param employeeDepartment Employee's assigned department
         */
        public void setEmployeeDepartment (final Department employeeDepartment) {
                this.employeeDepartment = employeeDepartment;
        }

        /**
         * Getter for employee's business email address
         * <p>
         * @return Employee's business email address
         */
        public String getEmployeeEmailAddress () {
                return this.employeeEmailAddress;
        }

        /**
         * Setter for employee's business email address
         * <p>
         * @param employeeEmailAddress Employee's business email address
         */
        public void setEmployeeEmailAddress (final String employeeEmailAddress) {
                this.employeeEmailAddress = employeeEmailAddress;
        }

        /**
         * Getter for employee's assigned headquarter (if no branch office)
         * <p>
         * @return Employee's assigned headquarter
         */
        public Headquarter getEmployeeHeadquarter () {
                return this.employeeHeadquarter;
        }

        /**
         * Setter for employee's assigned headquarter (if no branch office)
         * <p>
         * @param employeeHeadquarter Employee's assigned headquarter
         */
        public void setEmployeeHeadquarter (final Headquarter employeeHeadquarter) {
                this.employeeHeadquarter = employeeHeadquarter;
        }

        /**
         * Getter for employee's staff number
         * <p>
         * @return Employee's staff number
         */
        public String getEmployeeNumber () {
                return this.employeeNumber;
        }

        /**
         * Setter for employee's staff number
         * <p>
         * @param employeeNumber Employee's staff number
         */
        public void setEmployeeNumber (final String employeeNumber) {
                this.employeeNumber = employeeNumber;
        }

        /**
         * Getter for employee's personal contact data
         * <p>
         * @return Employee's personal contact data
         */
        public Contact getEmployeePersonalData () {
                return this.employeePersonalData;
        }

        /**
         * Setter for employee's personal contact data
         * <p>
         * @param employeePersonalData Employee's personal contact data
         */
        public void setEmployeePersonalData (final Contact employeePersonalData) {
                this.employeePersonalData = employeePersonalData;
        }

        /**
         * Getter for employee's phone extension
         * <p>
         * @return Employee's phone extension
         */
        public Integer getEmployeePhoneExtension () {
                return this.employeePhoneExtension;
        }

        /**
         * Getter for employee's phone extension
         * <p>
         * @param employeePhoneExtension Employee's phone extension
         */
        public void setEmployeePhoneExtension (final Integer employeePhoneExtension) {
                this.employeePhoneExtension = employeePhoneExtension;
        }

        /**
         * Getter for employee's user "owner"
         * <p>
         * @return Employee's user "owner"
         */
        public User getEmployeeUserOwner () {
                return this.employeeUserOwner;
        }

        /**
         * Setter for employee's user "owner"
         * <p>
         * @param employeeUserOwner Employee's user "owner"
         */
        public void setEmployeeUserOwner (final User employeeUserOwner) {
                this.employeeUserOwner = employeeUserOwner;
        }

        /**
         * Getter for mobile number
         * <p>
         * @return Mobile number
         */
        public Long getMobileNumber () {
                return this.mobileNumber;
        }

        /**
         * Setter for mobile number
         * <p>
         * @param mobileNumber Mobile number
         */
        public void setMobileNumber (final Long mobileNumber) {
                this.mobileNumber = mobileNumber;
        }

        /**
         * Getter for mobile provider instance
         * <p>
         * @return Mobile provider instance
         */
        public MobileProvider getMobileProvider () {
                return this.mobileProvider;
        }

        /**
         * Setter for mobile provider instance
         * <p>
         * @param mobileProvider Mobile provider instance
         */
        public void setMobileProvider (final MobileProvider mobileProvider) {
                this.mobileProvider = mobileProvider;
        }

        /**
         * Clears all bean fields
         */
        private void clear () {
                // Clear all fields
                this.setEmployeeBranchOffice(null);
                this.setEmployeeBasicData(null);
                this.setEmployeeDepartment(null);
                this.setEmployeeEmailAddress(null);
                this.setEmployeeHeadquarter(null);
                this.setEmployeePersonalData(null);
                this.setEmployeePhoneExtension(null);
                this.setEmployeeNumber(null);
                this.setEmployeeUserOwner(null);
        }

        /**
         * Creates employee instance with all data from this bean
         * <p>
         * @return Employee instance
         */
        private Employable createEmployee () {
                // Init instance
                final Employable employee = new BusinessEmployee(this.getEmployeeBasicData(), this.getEmployeeNumber(), this.getEmployeePersonalData());

                // Set all othewr data
                employee.setEmployeeBranchOffice(this.getEmployeeBranchOffice());
                employee.setEmployeeDepartment(this.getEmployeeDepartment());
                employee.setEmployeeHeadquarter(this.getEmployeeHeadquarter());
                employee.setEmployeePhoneExtension(this.getEmployeePhoneExtension());
                // @TODO employee.setEmployeePosition(this.getEmployeePosition());
                employee.setEmployeeUserOwner(this.getEmployeeUserOwner());

                // Is mobile provider and number set?
                if ((this.getMobileProvider() instanceof MobileProvider) && (this.getMobileNumber() != null) && (this.getMobileNumber() > 0)) {
                        // Init mobile number instance
                        final DialableMobileNumber number = new MobileNumber(this.getMobileProvider(), this.getMobileNumber());

                        // Set it in employee
                        employee.setEmployeeMobileNumber(number);
                }

                // Return it
                return employee;
        }

        /**
         * Checks whether given employee is already added
         * <p>
         * @param employee Employee to be checked
         * <p>
         * @return Whether the employee has already been added
         */
        private boolean isEmployeeCreatedByRequiredData (final Employable employee) {
                // Default is not found
                boolean isFound = false;

                // Check all employees
                for (final Employable otherEmployee : this.employeeController.allEmployees()) {
                        // Is same found?
                        if (Employees.isSameEmployeeFound(employee, otherEmployee)) {
                                // Okay, found it
                                isFound = true;
                                break;
                        }
                }

                // Return it
                return isFound;
        }

}