D-Net

package eu.dnetlib.client.accountingmonitor;

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

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

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

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

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

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

import com.github.gwtbootstrap.datepicker.client.ui.DateBox;

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.ui.*;

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

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

import eu.dnetlib.client.widgets.FormFieldSet;

import eu.dnetlib.client.widgets.TextBox;

/**

 * Created by stefania on 7/8/15.

 */

public class BankTransferForm implements IsWidget {

    private FlowPanel bankTransferPanel = new FlowPanel();

    private Label bankTransferLabel = new Label();

    private Alert errorAlert = new Alert();

    private Form bankTransferForm = new Form();

    private DateBox dateOfTransfer = new DateBox();

    private TextBox apcPaid = new TextBox();

    private Label apcPaidCurrency = new Label();

    private TextBox transferCosts = new TextBox();

    private Label transferCostsCurrency = new Label();

    private TextBox otherExpenses = new TextBox();

    private Label otherExpensesCurrency = new Label();

    private FileUpload fileUpload = new FileUpload();

    private TextBox requestIdHidden = new TextBox();

    private TextBox commentHidden = new TextBox();

    private Button submit = new Button("Submit");

    private Button cancel = new Button("Cancel");

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

    private UploadCompleteListener uploadCompleteListener;

    private CancelListener cancelListener;

    public BankTransferForm(String requestId, String comment) {

        bankTransferPanel.addStyleName("bankTransferPanel");

        bankTransferLabel.setText("Complete the bank transfer info");

        bankTransferLabel.addStyleName("bankTransferLabel");

        errorAlert.addStyleName("alertLabel");

        errorAlert.setType(AlertType.ERROR);

        errorAlert.setVisible(false);

        errorAlert.setClose(false);

        bankTransferPanel.add(bankTransferLabel);

        bankTransferPanel.add(errorAlert);

        bankTransferForm.setType(FormType.HORIZONTAL);

        bankTransferForm.setAction(GWT.getModuleBaseURL() + "bankTransfer");

        bankTransferForm.setEncoding(FormPanel.ENCODING_MULTIPART);

        bankTransferForm.setMethod(FormPanel.METHOD_POST);

        bankTransferPanel.add(bankTransferForm);

        dateOfTransfer.setAlternateSize(AlternateSize.XLARGE);

        dateOfTransfer.setName("dateOfTransfer");

        dateOfTransfer.setFormat("yyyy/mm/dd");

        bankTransferForm.add(new FormFieldSet("Date of transfer (*)", dateOfTransfer));

        apcPaid.setAlternateSize(AlternateSize.XLARGE);

        apcPaid.setName("apcPaid");

        apcPaid.addStyleName("inlineBlock");

        apcPaidCurrency.setText(" Euro");

        apcPaidCurrency.addStyleName("inlineBlock");

        bankTransferForm.add(new FormFieldSet("APC Paid (*)", apcPaid, apcPaidCurrency));

        transferCosts.setAlternateSize(AlternateSize.XLARGE);

        transferCosts.setName("transferCosts");

        transferCosts.addStyleName("inlineBlock");

        transferCostsCurrency.setText(" Euro");

        transferCostsCurrency.addStyleName("inlineBlock");

        bankTransferForm.add(new FormFieldSet("Transfer costs (*)", transferCosts, transferCostsCurrency));

        otherExpenses.setAlternateSize(AlternateSize.XLARGE);

        otherExpenses.setName("otherExpenses");

        otherExpenses.addStyleName("inlineBlock");

        otherExpensesCurrency.setText(" Euro");

        otherExpensesCurrency.addStyleName("inlineBlock");

        bankTransferForm.add(new FormFieldSet("Other expenses", otherExpenses, otherExpensesCurrency));

        fileUpload.setName("bankTransferFile");

        bankTransferForm.add(new FormFieldSet("Bank Transfer File (*)", fileUpload));

        submit.setType(ButtonType.PRIMARY);

        submit.addStyleName("inlineBlock");

        submit.addClickHandler(new ClickHandler() {

            @Override

            public void onClick(ClickEvent clickEvent) {

                errorAlert.setVisible(false);

                if(apcPaid.getValue()!=null && !apcPaid.getValue().trim().equals("")

                        && transferCosts.getValue()!=null && !transferCosts.getValue().trim().equals("")

                        && fileUpload.getFilename()!=null && !fileUpload.getFilename().equals("")) {

                    boolean isValid;

                    if(isFloat(apcPaid.getValue().trim()) && isPositiveNumber(Float.parseFloat(apcPaid.getValue().trim()))

                            && isFloat(transferCosts.getValue().trim()) && isPositiveNumber(Float.parseFloat(transferCosts.getValue().trim()))) {

                        isValid = true;

                    } else {

                        isValid = false;

                    }

                    if(otherExpenses.getValue()!=null && !otherExpenses.getValue().equals("")

                            && (!isFloat(otherExpenses.getValue().trim()) || !isPositiveNumber(Float.parseFloat(otherExpenses.getValue().trim())))) {

                        isValid = false;

                    }

                    if(isValid) {

                        bankTransferPanel.addStyleName("loading");

                        bankTransferPanel.add(loadingWheel);

                        bankTransferForm.submit();

                    } else {

                        errorAlert.setText("APC paid, transfer costs and extra expenses must be positive numbers");

                        errorAlert.setVisible(true);

                    }

                } else {

                    errorAlert.setText("All asterisk (*) fields are required");

                    errorAlert.setVisible(true);

                }

            }

        });

        cancel.setType(ButtonType.DEFAULT);

        cancel.addStyleName("inlineBlock");

        cancel.addClickHandler(new ClickHandler() {

            @Override

            public void onClick(ClickEvent clickEvent) {

                if(cancelListener!=null)

                    cancelListener.cancel();

            }

        });

        bankTransferForm.add(new FormFieldSet(null, submit, cancel));

        requestIdHidden.setVisible(false);

        requestIdHidden.setName("requestId");

        requestIdHidden.setValue(requestId);

        bankTransferForm.add(new FormFieldSet(null, requestIdHidden));

        commentHidden.setVisible(false);

        commentHidden.setName("comment");

        commentHidden.setValue(comment);

        bankTransferForm.add(new FormFieldSet(null, commentHidden));

        bankTransferForm.addSubmitCompleteHandler(new Form.SubmitCompleteHandler() {

            @Override

            public void onSubmitComplete(Form.SubmitCompleteEvent submitCompleteEvent) {

                if(uploadCompleteListener!=null)

                    uploadCompleteListener.uploadCompleted(true);

            }

        });

    }

    @Override

    public Widget asWidget() {

        return bankTransferPanel;

    }

    public interface UploadCompleteListener {

        void uploadCompleted(boolean succeeded);

    }

    public void setUploadCompleteListener(UploadCompleteListener uploadCompleteListener) {

        this.uploadCompleteListener = uploadCompleteListener;

    }

    public interface CancelListener {

        void cancel();

    }

    public void setCancelListener(CancelListener cancelListener) {

        this.cancelListener = cancelListener;

    }

    private boolean isFloat(String number) {

        try {

            Float numberValue = Float.parseFloat(number);

            return true;

        } catch(NumberFormatException nfe) {

            return false;

        }

    }

    private boolean isPositiveNumber(float number) {

        if(number>=0)

            return true;

        return false;

    }

}