D-Net

package eu.dnetlib.client.fundingrequest.newrequest.accountingstep;

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

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

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

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.Window;

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

import eu.dnetlib.client.fundingrequest.newrequest.FundingWizardStepWidget;

import eu.dnetlib.client.widgets.FormFieldSet;

import eu.dnetlib.client.widgets.TextBox;

import eu.dnetlib.client.widgets.ValueChangeEvent;

import eu.dnetlib.client.widgets.ValueChangeHandler;

import eu.dnetlib.goldoa.domain.*;

import eu.dnetlib.shared.FundingWizardState;

import java.util.Date;

/**

 * Created by stefania on 3/9/15.

 */

public class AccountingStepWidget extends FundingWizardStepWidget {

    private FlowPanel accountingStepPanel = new FlowPanel();

    private Alert errorLabel = new Alert();

    private FlowPanel uploadInvoicePanel = new FlowPanel();

    private Label uploadInvoiceLabel = new Label();

    private Alert uploadInvoiceInfoLabel = new Alert();

    private Alert uploadInvoiceErrorLabel = new Alert();

    private Alert uploadInvoiceSuccessLabel = new Alert();

    private Form uploadInvoiceForm = new Form();

    private TextBox requestIdHidden = new TextBox();

    private TextBox invoiceNumber = new TextBox();

    private DateBox dateIssued = new DateBox();

    private FileUpload fileUpload = new FileUpload();

    private Button upload = new Button("Upload");

    private FlowPanel accountingInfoPanel = new FlowPanel();

    private Label accountingInfoLabel = new Label();

    private Alert accountingInfoErrorLabel = new Alert();

    private Form accountingInfoForm = new Form();

    private TextBox apcTextBox = new TextBox();

    private TextBox goldDiscountTextBox = new TextBox();

    private TextBox projectParticipationTextBox = new TextBox();

    private TextBox fundingRequestedTextBox = new TextBox();

    private float apc = 0;

    private float goldDiscount = 0;

    private float fundingRequested = 0;

    private boolean isInvoiceUploaded = false;

    private String invoiceId = null;

    private FundingWizardStepCompleteListener fundingWizardStepCompleteListener;

    public AccountingStepWidget(String title) {

        super(title);

        accountingStepPanel.addStyleName("accountingForm");

        accountingStepPanel.addStyleName("fundingWizardStep");

        accountingStepPanel.addStyleName("inlineBlock");

        errorLabel.addStyleName("alertLabel");

        errorLabel.addStyleName("width80");

        errorLabel.setType(AlertType.ERROR);

        errorLabel.setVisible(false);

        errorLabel.setClose(false);

        uploadInvoiceLabel.addStyleName("uploadInvoiceLabel");

        uploadInvoiceLabel.setText("Upload your invoice");

        uploadInvoiceSuccessLabel.addStyleName("alertLabel");

        uploadInvoiceSuccessLabel.setType(AlertType.SUCCESS);

        uploadInvoiceSuccessLabel.setVisible(false);

        uploadInvoiceSuccessLabel.setClose(false);

        uploadInvoiceInfoLabel.addStyleName("alertLabel");

        uploadInvoiceInfoLabel.setText("You are not required to upload your invoice at this point if you don't have it, " +

                "but you are required to come back later and upload it to complete your request.");

        uploadInvoiceInfoLabel.setType(AlertType.INFO);

        uploadInvoiceInfoLabel.setVisible(true);

        uploadInvoiceInfoLabel.setClose(false);

        uploadInvoiceErrorLabel.addStyleName("alertLabel");

        uploadInvoiceErrorLabel.setType(AlertType.ERROR);

        uploadInvoiceErrorLabel.setVisible(false);

        uploadInvoiceErrorLabel.setClose(false);

        uploadInvoicePanel.addStyleName("uploadInvoicePanel");

        uploadInvoicePanel.add(uploadInvoiceLabel);

        uploadInvoicePanel.add(uploadInvoiceInfoLabel);

        uploadInvoicePanel.add(uploadInvoiceSuccessLabel);

        uploadInvoicePanel.add(uploadInvoiceErrorLabel);

        uploadInvoiceForm.setType(FormType.HORIZONTAL);

        uploadInvoiceForm.setAction(GWT.getModuleBaseURL() + "fileupload");

        uploadInvoiceForm.setEncoding(FormPanel.ENCODING_MULTIPART);

        uploadInvoiceForm.setMethod(FormPanel.METHOD_POST);

        uploadInvoicePanel.add(uploadInvoiceForm);

        requestIdHidden.setVisible(false);

        requestIdHidden.setName("requestId");

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

        invoiceNumber.setAlternateSize(AlternateSize.LARGE);

        invoiceNumber.setName("invoiceNumber");

        uploadInvoiceForm.add(new FormFieldSet("Invoice number (*)", invoiceNumber));

        dateIssued.setAlternateSize(AlternateSize.LARGE);

        dateIssued.setName("dateIssued");

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

        uploadInvoiceForm.add(new FormFieldSet("Date issued (*)", dateIssued));

        fileUpload.setName("fileUpload");

        uploadInvoiceForm.add(new FormFieldSet("Invoice (*)", fileUpload));

        upload.setType(ButtonType.SUCCESS);

        upload.addClickHandler(new ClickHandler() {

            @Override

            public void onClick(ClickEvent clickEvent) {

                uploadInvoiceSuccessLabel.setVisible(false);

                uploadInvoiceErrorLabel.setVisible(false);

                if(!invoiceNumber.getValue().trim().equals("") && fileUpload.getFilename()!=null && !fileUpload.getFilename().equals(""))

                    uploadInvoiceForm.submit();

                else {

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

                    uploadInvoiceErrorLabel.setVisible(true);

                }

            }

        });

        uploadInvoiceForm.add(new FormFieldSet(null, upload));

        uploadInvoiceForm.addSubmitCompleteHandler(new Form.SubmitCompleteHandler() {

            @Override

            public void onSubmitComplete(Form.SubmitCompleteEvent submitCompleteEvent) {

                invoiceId = submitCompleteEvent.getResults().replace("<pre>", "").replace("</pre>", "");

                isInvoiceUploaded = true;

                uploadInvoiceSuccessLabel.setVisible(false);

                uploadInvoiceErrorLabel.setVisible(false);

                uploadInvoiceSuccessLabel.setText("Upload completed successfully");

                uploadInvoiceSuccessLabel.setVisible(true);

            }

        });

        accountingInfoLabel.addStyleName("accountingInformationLabel");

        accountingInfoLabel.setText("Accounting Information");

        accountingInfoErrorLabel.addStyleName("alertLabel");

        accountingInfoErrorLabel.setType(AlertType.ERROR);

        accountingInfoErrorLabel.setVisible(false);

        accountingInfoErrorLabel.setClose(false);

        accountingInfoPanel.addStyleName("accountingInformationPanel");

        accountingInfoPanel.add(accountingInfoLabel);

        accountingInfoPanel.add(accountingInfoErrorLabel);

        accountingInfoForm.setType(FormType.HORIZONTAL);

        accountingInfoPanel.add(accountingInfoForm);

        apcTextBox.setAlternateSize(AlternateSize.LARGE);

        apcTextBox.setEnabled(false);

        accountingInfoForm.add(new FormFieldSet("APC", apcTextBox));

        Label goldDiscountPercentageLabel = new Label("  %");

        goldDiscountPercentageLabel.setStyleName("inlineBlock");

        goldDiscountTextBox.setAlternateSize(AlternateSize.LARGE);

        goldDiscountTextBox.setEnabled(false);

        goldDiscountTextBox.addStyleName("inlineBlock");

        accountingInfoForm.add(new FormFieldSet("OpenAIRE Gold Discount", goldDiscountTextBox, goldDiscountPercentageLabel));

        Label projectParticipationPercentageLabel = new Label("  %");

        projectParticipationPercentageLabel.setStyleName("inlineBlock");

        projectParticipationTextBox.setAlternateSize(AlternateSize.LARGE);

        projectParticipationTextBox.setValue("100");

        projectParticipationTextBox.addStyleName("inlineBlock");

        projectParticipationTextBox.setValueChangeHandler(new ValueChangeHandler() {

            @Override

            public void handle(ValueChangeEvent valueChangeEvent) {

                accountingInfoErrorLabel.setVisible(false);

                String percentage = projectParticipationTextBox.getValue().trim();

                if(!percentage.equals("")) {

                    if (isPercentage(percentage)) {

                        fundingRequested = (apc / (1 + (goldDiscount / 100))) * (Float.parseFloat(percentage) / 100);

                        fundingRequestedTextBox.setValue(fundingRequested + "");

                    } else {

                        accountingInfoErrorLabel.setText("Project participation must be a number greater than 0 and less or equal than 100");

                        accountingInfoErrorLabel.setVisible(true);

                    }

                }

            }

        });

        accountingInfoForm.add(new FormFieldSet("Project participation (*)", projectParticipationTextBox, projectParticipationPercentageLabel));

        fundingRequestedTextBox.setAlternateSize(AlternateSize.LARGE);

        fundingRequested = (apc / (1 + (goldDiscount / 100)));

        fundingRequestedTextBox.setValue(fundingRequested + "");

        accountingInfoForm.add(new FormFieldSet("Funding Requested (*)", fundingRequestedTextBox));

        accountingStepPanel.add(errorLabel);

        accountingStepPanel.add(uploadInvoicePanel);

        accountingStepPanel.add(accountingInfoPanel);

    }

    @Override

    public Widget asWidget() {

        return accountingStepPanel;

    }

    @Override

    public void updateState(FundingWizardState fundingWizardState) {

        Request request = fundingWizardState.getRequest();

        request.setFundingRequested(Float.parseFloat(fundingRequestedTextBox.getValue().trim()));

        request.setProjectParticipation(Float.parseFloat(projectParticipationTextBox.getValue().trim()));

        if(isInvoiceUploaded) {

            Invoice invoice = new Invoice();

            invoice.setNumber(invoiceNumber.getValue().trim());

            invoice.setDate(dateIssued.getValue());

            invoice.setId(invoiceId);

            fundingWizardState.setInvoice(invoice);

            request.setInvoice(invoiceId);

        }

    }

    @Override

    public void save() {

        errorLabel.setVisible(false);

        if(isComplete()) {

            if(fundingWizardStepCompleteListener!=null)

                fundingWizardStepCompleteListener.setStepComplete(true);

        }

    }

    @Override

    public void clear() {

//        errorLabel.setVisible(false);

//        uploadInvoiceErrorLabel.setVisible(false);

//        uploadInvoiceSuccessLabel.setVisible(false);

//

//        requestIdHidden.setValue("");

//        invoiceNumber.setValue("");

//        dateIssued.setValue(new Date());

//        fileUpload

    }

    @Override

    public void loadContent(FundingWizardState fundingWizardState) {

        accountingInfoErrorLabel.setVisible(false);

        Request request = fundingWizardState.getRequest();

        requestIdHidden.setValue(request.getId());

        if(fundingWizardState.getPublication().getJournal()!=null) {

            apcTextBox.setValue(fundingWizardState.getPublication().getJournal().getApc() + "");

            apc = fundingWizardState.getPublication().getJournal().getApc();

            if(apc>0)

                fundingRequestedTextBox.setEnabled(false);

            goldDiscountTextBox.setValue(fundingWizardState.getPublication().getJournal().getDiscount() + "");

            goldDiscount = fundingWizardState.getPublication().getJournal().getDiscount();

        } else if(fundingWizardState.getPublication().getPublisher()!=null) {

            //TODO uncomment when Antonis updates publisher

//                    apcTextBox.setValue(fundingWizardState.getPublication().getPublisher().getApc() + "");

//                    apc = fundingWizardState.getPublication().getPublisher().getApc();

//                    if(apc>0)

//                        fundingRequestedTextBox.setEnabled(false);

            goldDiscountTextBox.setValue(fundingWizardState.getPublication().getPublisher().getDiscount() + "");

            goldDiscount = fundingWizardState.getPublication().getPublisher().getDiscount();

        }

    }

    @Override

    public void setFundingWizardStepCompleteListener(FundingWizardStepCompleteListener fundingWizardStepCompleteListener) {

        this.fundingWizardStepCompleteListener = fundingWizardStepCompleteListener;

    }

    @Override

    public void setFundingWizardJumpToStepListener(FundingWizardJumpToStepListener fundingWizardJumpToStepListener) {

    }

    private boolean isPercentage(String percentage) {

        try {

            Float percentageValue = Float.parseFloat(percentage);

            if(percentageValue>0 && percentageValue<=100)

                return true;

        } catch(NumberFormatException nfe) {

            return false;

        }

        return false;

    }

    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;

    }

    private boolean isComplete() {

        if(!projectParticipationTextBox.getValue().trim().equals("") && !fundingRequestedTextBox.getValue().trim().equals("")) {

            if(!isPercentage(projectParticipationTextBox.getValue().trim())) {

                return false;

            }

            if(!isFloat(fundingRequestedTextBox.getValue().trim()) || !isPositiveNumber(Float.parseFloat(fundingRequestedTextBox.getValue().trim()))) {

                errorLabel.setText("Funding requested must be a number greater than 0");

                errorLabel.setVisible(true);

                return false;

            }

            return true;

        } else {

            errorLabel.setText("You need to complete the Project participation and the Funding requested fields");

            errorLabel.setVisible(true);

        }

        return false;

    }

}