EDIT

/**

* Copyright (C) 2021 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.vaadin.view;

import org.apache.commons.lang3.StringUtils;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.core.env.Environment;

import org.vaadin.spring.events.EventBus;

import com.vaadin.data.validator.RegexpValidator;

import com.vaadin.navigator.View;

import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

import com.vaadin.spring.annotation.SpringView;

import com.vaadin.ui.Alignment;

import com.vaadin.ui.Button;

import com.vaadin.ui.FormLayout;

import com.vaadin.ui.Label;

import com.vaadin.ui.PasswordField;

import com.vaadin.ui.TextField;

import com.vaadin.ui.VerticalLayout;

import com.vaadin.ui.themes.ValoTheme;

import eu.etaxonomy.cdm.vaadin.data.validator.PasswordsMatchValidator;

import eu.etaxonomy.cdm.vaadin.data.validator.PasswordsPolicyValidator;

import eu.etaxonomy.cdm.vaadin.event.UserAccountEvent;

import eu.etaxonomy.vaadin.mvp.AbstractView;

/**

 * @author a.kohlbecker

 * @since Nov 11, 2021

 */

@SpringView(name=AccountRegistrationViewBean.NAME)

public class AccountRegistrationViewBean extends AbstractView<AccountRegistrationPresenter> implements AccountRegistrationView, View  {

    private static final long serialVersionUID = 2066153054170511405L;

    @Autowired

    private EventBus.UIEventBus uiEventBus;

    @Autowired

    private Environment env;

    public static final String NAME = "accountCreation";

    private Label header = new Label();

    private TextField emailAddress = new TextField("Email address");

    private TextField userName = new TextField("User name");

    private PasswordField password1Field = new PasswordField ("Password");

    private PasswordField password2Field = new PasswordField("Repeat password");

    private TextField prefix = new TextField("Name prefix");

    private TextField familyName = new TextField("Family name");

    private TextField givenName = new TextField("Given name");

    private Button registerButton = new Button("Register user account");

    private Label messageLabel = new Label();

    @Override

    protected void initContent() {

        VerticalLayout root = new VerticalLayout();

        FormLayout formLayout = new FormLayout();

        formLayout.addComponents(header, userName, password1Field, password2Field, prefix, givenName, familyName, registerButton, messageLabel);

        formLayout.setComponentAlignment(messageLabel, Alignment.MIDDLE_CENTER);

        formLayout.setMargin(true);

        formLayout.setSizeUndefined();

        header.setValue("Register a user account");

        header.setStyleName(ValoTheme.LABEL_H3);

        registerButton.setStyleName(ValoTheme.BUTTON_PRIMARY);

        registerButton.setEnabled(false);

        registerButton.setWidth(100, Unit.PERCENTAGE);

        registerButton.addClickListener(e -> {

            getViewEventBus().publish(this, new UserAccountEvent(UserAccountEvent.UserAccountAction.REGISTER_ACCOUNT, e));

        });

        messageLabel.setCaptionAsHtml(true);

        messageLabel.setVisible(false);

        setCompositionRoot(root);

        root.addComponent(formLayout);

        root.setComponentAlignment(formLayout, Alignment.MIDDLE_CENTER);

        root.setSizeFull();

        userName.setRequired(true);

        password1Field.setRequired(true);

        password2Field.setRequired(true);

        userName.addValidator(new RegexpValidator("[A-Za-z0-9_\\.\\-]{3,}", true, "User names may contain the characters \"A-Z a-z 0-9 _ . -\", and must be at least 3 characters long."));

        password1Field.addValidator(new PasswordsPolicyValidator());

        password2Field.addValidator(new PasswordsMatchValidator("The passwords are not identical.", password1Field, password2Field));

        password1Field.addValueChangeListener(e -> updateResetButtonState());

        password2Field.addValueChangeListener(e -> updateResetButtonState());

        // value will be set by presenter and user must not change it here

        emailAddress.setEnabled(false);

        emailAddress.setReadOnly(true);

        prefix.setInputPrompt("Dr., Prof, ...");

    }

    private void updateResetButtonState() {

        registerButton.setEnabled(StringUtils.isNoneBlank(password1Field.getValue()) && password1Field.getErrorMessage() == null && password2Field.getErrorMessage() == null);

    }

    @Override

    // TODO pull up to AbstractView and let AbstractView implement View?

    public void enter(ViewChangeEvent event) {

        getPresenter().onViewEnter();

    }

    @Override

    public void showErrorMessage(String text) {

        messageLabel.setValue(text);

        messageLabel.setStyleName(ValoTheme.LABEL_FAILURE);

        messageLabel.setVisible(true);

        disableForm();

    }

    @Override

    public void showSuccessMessage(String text) {

        messageLabel.setValue(text);

        messageLabel.setStyleName(ValoTheme.LABEL_SUCCESS);

        messageLabel.setVisible(true);

        disableForm();

    }

    public void disableForm() {

        password1Field.setEnabled(false);

        password2Field.setEnabled(false);

        registerButton.setEnabled(false);

    }

    @Override

    public TextField getUserName() {

        return userName;

    }

    @Override

    public PasswordField getPassword1Field() {

        return password1Field;

    }

     @Override

    public TextField getEmailAddress() {

        return emailAddress;

    }

     @Override

     public TextField getPrefix() {

        return prefix;

    }

     @Override

     public TextField getFamilyName() {

        return familyName;

    }

     @Override

     public TextField getGivenName() {

        return givenName;

    }

}