D-Net

package eu.dnetlib.client;

import com.claudiushauptmann.gwt.recaptcha.client.RecaptchaWidget;

import com.github.gwtbootstrap.client.ui.Alert;

import com.github.gwtbootstrap.client.ui.Form;

import com.github.gwtbootstrap.client.ui.SubmitButton;

import com.github.gwtbootstrap.client.ui.TextArea;

import com.github.gwtbootstrap.client.ui.constants.*;

import com.google.gwt.core.client.GWT;

import com.google.gwt.event.dom.client.ClickEvent;

import com.google.gwt.event.dom.client.ClickHandler;

import com.google.gwt.user.client.Window;

import com.google.gwt.user.client.rpc.AsyncCallback;

import com.google.gwt.user.client.ui.*;

import eu.dnetlib.client.widgets.FormFieldSet;

import eu.dnetlib.client.widgets.TextBox;

import eu.dnetlib.goldoa.domain.Contact;

/**

 * Created by stefania on 4/2/15.

 */

public class ContactForm implements IsWidget {

    private FlowPanel contactFormPanel = new FlowPanel();

    private Alert errorLabel = new Alert();

    private Label label = new Label();

    private Form contactForm = new Form();

    private TextBox firstNameTextBox = new TextBox();

    private TextBox lastNameTextBox = new TextBox();

    private TextBox initialsTextBox = new TextBox();

    private FormFieldSet nameFormFieldSet = new FormFieldSet("Name (*)", firstNameTextBox, initialsTextBox, lastNameTextBox);

    private TextBox emailTextBox = new TextBox();

    private FormFieldSet emailFormFieldSet = new FormFieldSet("E-mail Address (*)", emailTextBox);

    private TextBox subjectTextBox = new TextBox();

    private FormFieldSet subjectFormFieldSet = new FormFieldSet("Subject (*)", subjectTextBox);

    private TextArea messageTextArea = new TextArea();

    private FormFieldSet messageFormFieldSet = new FormFieldSet("Message (*)", messageTextArea);

    private RecaptchaWidget captchaWidget;

    private SubmitButton submitButton = new SubmitButton();

    private ContactSubmittedListener contactSubmittedListener;

    private DataServiceAsync dataService = GWT.create(DataService.class);

    private GoldOAConstants goldOAConstants = GWT.create(GoldOAConstants.class);

    public ContactForm() {

        contactFormPanel.add(label);

        contactFormPanel.add(errorLabel);

        errorLabel.addStyleName("alertLabel");

        errorLabel.setType(AlertType.ERROR);

        errorLabel.setVisible(false);

        errorLabel.setClose(false);

        contactForm.setType(FormType.HORIZONTAL);

        contactFormPanel.add(contactForm);

        firstNameTextBox.setAlternateSize(AlternateSize.MEDIUM);

        firstNameTextBox.setPlaceholder("First name (*)");

        lastNameTextBox.setAlternateSize(AlternateSize.MEDIUM);

        lastNameTextBox.setPlaceholder("Last name (*)");

        initialsTextBox.setAlternateSize(AlternateSize.MINI);

        initialsTextBox.setPlaceholder("Initials");

        contactForm.add(nameFormFieldSet);

        emailTextBox.setAlternateSize(AlternateSize.XXLARGE);

        contactForm.add(emailFormFieldSet);

        subjectTextBox.setAlternateSize(AlternateSize.XXLARGE);

        contactForm.add(subjectFormFieldSet);

        messageTextArea.setAlternateSize(AlternateSize.XXLARGE);

        contactForm.add(messageFormFieldSet);

        captchaWidget = new RecaptchaWidget(GoldOAPortal.publicCaptchaKey, "en", "clean");

        contactForm.add(new FormFieldSet(null, captchaWidget));

        submitButton.setText("Submit");

        submitButton.setType(ButtonType.PRIMARY);

        submitButton.addClickHandler(new ClickHandler() {

            @Override

            public void onClick(ClickEvent clickEvent) {

                errorLabel.setVisible(false);

                if(isComplete()) {

                    if(isCaptchaCompleted()) {

                        final HTML loadingWheel = new HTML("<div class=\"loader-big\"></div><div class=\"whiteFilm\"></div>");

                        contactFormPanel.addStyleName("loading");

                        contactFormPanel.add(loadingWheel);

                        dataService.submitContactForm(getContact(), captchaWidget.getChallenge(), captchaWidget.getResponse(),

                                new AsyncCallback<Void>() {

                            @Override

                            public void onFailure(Throwable throwable) {

                                contactFormPanel.remove(loadingWheel);

                                contactFormPanel.removeStyleName("loading");

                                if(throwable.getMessage().equals("captcha")) {

                                    errorLabel.setText(goldOAConstants.errorContactFormIncorrectCaptcha());

                                    captchaWidget.reload();

                                } else {

                                    errorLabel.setText(goldOAConstants.errorSubmittingContactForm());

                                }

                                errorLabel.setVisible(true);

                            }

                            @Override

                            public void onSuccess(Void aVoid) {

                                contactFormPanel.remove(loadingWheel);

                                contactFormPanel.removeStyleName("loading");

                                if (contactSubmittedListener != null)

                                    contactSubmittedListener.contactSubmitted();

                            }

                        });

                    } else {

                        errorLabel.setText(goldOAConstants.errorContactFormMissingCaptcha());

                        errorLabel.setVisible(true);

                    }

                } else {

                    errorLabel.setText(goldOAConstants.errorContactFormAllFieldsRequired());

                    errorLabel.setVisible(true);

                }

            }

        });

        contactForm.add(new FormFieldSet(null, submitButton));

        if(GoldOAPortal.currentUser!=null)

            preLoadContactForm();

    }

    @Override

    public Widget asWidget() {

        return contactFormPanel;

    }

    public interface ContactSubmittedListener {

        public void contactSubmitted();

    }

    public void setContactSubmittedListener(ContactSubmittedListener contactSubmittedListener) {

        this.contactSubmittedListener = contactSubmittedListener;

    }

    private Contact getContact() {

        Contact contact = new Contact();

        contact.setFirstName(firstNameTextBox.getValue().trim());

        contact.setInitials(initialsTextBox.getValue().trim());

        contact.setLastName(lastNameTextBox.getValue().trim());

        contact.setEmail(emailTextBox.getValue().trim());

        contact.setSubject(subjectTextBox.getValue().trim());

        contact.setMessage(messageTextArea.getValue().trim());

        return contact;

    }

    private void preLoadContactForm() {

        firstNameTextBox.setValue(GoldOAPortal.currentUser.getFirstname());

        initialsTextBox.setValue(GoldOAPortal.currentUser.getInitials());

        lastNameTextBox.setValue(GoldOAPortal.currentUser.getLastname());

        emailTextBox.setValue(GoldOAPortal.currentUser.getEmail());

    }

    private boolean isComplete() {

        if(!firstNameTextBox.getValue().trim().isEmpty() && !lastNameTextBox.getValue().trim().isEmpty()

                && !emailTextBox.getValue().trim().isEmpty() && !subjectTextBox.getValue().trim().isEmpty()

                && !messageTextArea.getValue().trim().isEmpty()) {

            return true;

        }

        return false;

    }

    private boolean isCaptchaCompleted() {

        if(captchaWidget.getResponse()!=null && !captchaWidget.getResponse().equals(""))

            return true;

        return  false;

    }

}