D-Net

package eu.dnetlib.client;

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

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

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

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

import com.github.gwtbootstrap.client.ui.event.HideEvent;

import com.github.gwtbootstrap.client.ui.event.HideHandler;

import com.github.gwtbootstrap.client.ui.event.ShowEvent;

import com.github.gwtbootstrap.client.ui.event.ShowHandler;

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

import com.google.gwt.dom.client.Document;

import com.google.gwt.dom.client.Style;

import com.google.gwt.i18n.client.DateTimeFormat;

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

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

import eu.dnetlib.goldoa.domain.Request;

import eu.dnetlib.goldoa.domain.RequestInfo;

import java.util.List;

/**

 * Created by stefania on 3/6/15.

 */

public class MonitorFundingRequestsWidget implements MyWidget {

    private FlowPanel monitorFundingRequestsPagePanel = new FlowPanel();

    private Label monitorFundingRequestsTitleLabel = new Label();

    private Label monitorFundingRequestsInfoLabel = new Label();

    private Alert errorLabel = new Alert();

    private Alert warningLabel = new Alert();

    private FlowPanel requestsForApprovalPanel = new FlowPanel();

    private DateTimeFormat dtf = DateTimeFormat.getFormat("yyyy/MM/dd");

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

    public MonitorFundingRequestsWidget() {

        monitorFundingRequestsPagePanel.addStyleName("content");

        monitorFundingRequestsTitleLabel.setText("Monitor Funding Requests");

        monitorFundingRequestsTitleLabel.addStyleName("contentTitleLabel");

        monitorFundingRequestsInfoLabel.setText("Monitor and change the status of funding requests that are pending approval");

        monitorFundingRequestsInfoLabel.addStyleName("contentInfoLabel");

        errorLabel.addStyleName("alertLabel");

        errorLabel.addStyleName("width80");

        errorLabel.setType(AlertType.ERROR);

        errorLabel.setClose(false);

        errorLabel.setVisible(false);

        warningLabel.addStyleName("alertLabel");

        warningLabel.addStyleName("width80");

        warningLabel.setType(AlertType.WARNING);

        warningLabel.setClose(false);

        warningLabel.setVisible(false);

        requestsForApprovalPanel.addStyleName("requestsListPanel");

        monitorFundingRequestsPagePanel.add(monitorFundingRequestsTitleLabel);

        monitorFundingRequestsPagePanel.add(monitorFundingRequestsInfoLabel);

        monitorFundingRequestsPagePanel.add(errorLabel);

        monitorFundingRequestsPagePanel.add(warningLabel);

        monitorFundingRequestsPagePanel.add(requestsForApprovalPanel);

    }

    @Override

    public Widget asWidget() {

        return monitorFundingRequestsPagePanel;

    }

    @Override

    public void clear() {

        errorLabel.setVisible(false);

        warningLabel.setVisible(false);

        requestsForApprovalPanel.clear();

    }

    @Override

    public void reload() {

        Document.get().getElementById("content").removeClassName("uk-width-medium-1-1");

        Document.get().getElementById("content").addClassName("uk-width-medium-3-4");

        Document.get().getElementById("sidebar").getStyle().setDisplay(Style.Display.BLOCK);

        SidebarPanel sidebarPanel = new SidebarPanel("Help");

        RootPanel.get("sidebar").add(sidebarPanel.asWidget());

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

        requestsForApprovalPanel.addStyleName("loading");

        requestsForApprovalPanel.add(loadingWheel);

        dataService.getRequests(null, null, null, null, null, null, new AsyncCallback<List<RequestInfo>>() {

            @Override

            public void onFailure(Throwable throwable) {

                requestsForApprovalPanel.removeStyleName("loading");

                requestsForApprovalPanel.remove(loadingWheel);

                errorLabel.setText("System error retrieving requests");

                errorLabel.setVisible(true);

            }

            @Override

            public void onSuccess(List<RequestInfo> requestInfoList) {

                requestsForApprovalPanel.removeStyleName("loading");

                requestsForApprovalPanel.remove(loadingWheel);

                if(requestInfoList.isEmpty()) {

                    warningLabel.setText("No available requests at the moment.");

                    warningLabel.setVisible(true);

                } else {

                    for(RequestInfo requestInfo : requestInfoList)

                        drawRequestInfo(requestInfo);

                }

            }

        });

    }

    @Override

    public void setToken(String token) {

    }

    private void drawRequestInfo(final RequestInfo requestInfo) {

        final AccordionGroup dataRequestAccordionItem = new AccordionGroup();

        String heading = "\"" + requestInfo.getPublication().getTitle() + "\"" + " (" + dtf.format(requestInfo.getDate()) + ")"

                + ", STATUS: " + requestInfo.getStatus().getValue();

        dataRequestAccordionItem.setHeading(heading);

        dataRequestAccordionItem.setIcon(IconType.ANGLE_DOWN);

        dataRequestAccordionItem.addShowHandler(new ShowHandler() {

            @Override

            public void onShow(ShowEvent showEvent) {

                dataRequestAccordionItem.setIcon(IconType.ANGLE_UP);

                dataRequestAccordionItem.clear();

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

                FlowPanel accordionInner = new FlowPanel();

                accordionInner.addStyleName("loading");

                accordionInner.add(loadingWheel);

                dataRequestAccordionItem.add(accordionInner);

                dataService.getRequestById(requestInfo.getId(), new AsyncCallback<RequestInfo>() {

                    @Override

                    public void onFailure(Throwable throwable) {

                        dataRequestAccordionItem.clear();

                        Alert errorLabel = new Alert();

                        errorLabel.addStyleName("alertLabel");

                        errorLabel.setType(AlertType.ERROR);

                        errorLabel.setClose(false);

                        errorLabel.setText("System error getting request information");

                        dataRequestAccordionItem.add(errorLabel);

                    }

                    @Override

                    public void onSuccess(final RequestInfo requestInfo) {

                        dataRequestAccordionItem.clear();

                        RequestInfoElement requestInfoElement = new RequestInfoElement(requestInfo);

                        dataRequestAccordionItem.add(requestInfoElement.asWidget());

                        RequestInfoElement.ActionListener actionListener = new RequestInfoElement.ActionListener() {

                            @Override

                            public void actionHappened(boolean succeeded, Request.RequestStatus requestStatus) {

                                dataRequestAccordionItem.getHeading().getElement().scrollIntoView();

                                if(succeeded) {

                                    String heading = "\"" + requestInfo.getPublication().getTitle() + "\"" + " (" + dtf.format(requestInfo.getDate()) + ")"

                                            + ", STATUS: " + requestStatus.getValue();

                                    dataRequestAccordionItem.setHeading(heading);

                                }

                            }

                        };

                        requestInfoElement.setActionListener(actionListener);

                    }

                });

            }

        });

        dataRequestAccordionItem.addHideHandler(new HideHandler() {

            @Override

            public void onHide(HideEvent hideEvent) {

                dataRequestAccordionItem.setIcon(IconType.ANGLE_DOWN);

            }

        });

        requestsForApprovalPanel.add(dataRequestAccordionItem);

    }

}