D-Net

package eu.dnetlib.client;

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

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

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.Affiliation;

import eu.dnetlib.goldoa.domain.BudgetInfo;

import java.util.ArrayList;

import java.util.List;

/**

 * Created by stefania on 4/6/15.

 */

public class ExistingBudgetRequestsWidget implements MyWidget {

    private String token = "";

    private FlowPanel existingBudgetsPagePanel = new FlowPanel();

    private Label existingBudgetsTitleLabel = new Label();

    private Label existingBudgetsInfoLabel = new Label();

    private Alert errorLabel = new Alert();

    private Alert warningLabel = new Alert();

    private FlowPanel budgetsForApprovalPanel = new FlowPanel();

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

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

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

    public ExistingBudgetRequestsWidget() {

        existingBudgetsPagePanel.addStyleName("content");

        existingBudgetsTitleLabel.setText("Existing Budgets");

        existingBudgetsTitleLabel.addStyleName("contentTitleLabel");

        existingBudgetsInfoLabel.setText("View all your budget requests and the amount of money left in each one.");

        existingBudgetsInfoLabel.addStyleName("contentInfoLabel");

        errorLabel.addStyleName("alertLabel");

        errorLabel.setType(AlertType.ERROR);

        errorLabel.setClose(false);

        errorLabel.setVisible(false);

        warningLabel.addStyleName("alertLabel");

        warningLabel.setType(AlertType.WARNING);

        warningLabel.setClose(false);

        warningLabel.setVisible(false);

        budgetsForApprovalPanel.addStyleName("budgetsListPanel");

        existingBudgetsPagePanel.add(existingBudgetsTitleLabel);

        existingBudgetsPagePanel.add(existingBudgetsInfoLabel);

        existingBudgetsPagePanel.add(errorLabel);

        existingBudgetsPagePanel.add(warningLabel);

        existingBudgetsPagePanel.add(budgetsForApprovalPanel);

    }

    @Override

    public void clear() {

        errorLabel.setVisible(false);

        warningLabel.setVisible(false);

        budgetsForApprovalPanel.clear();

    }

    @Override

    public void reload() {

        MyWidgetHelper.hideSidebar();

        SidebarPanel helpPanel = new SidebarPanel("Help");

        MyWidgetHelper.loadHelp(helpPanel, token.split("\\.")[0]);

        loadBudgets();

    }

    @Override

    public void setToken(String token) {

        this.token = token;

    }

    @Override

    public void afterAdditionToRootPanel() {

    }

    @Override

    public Widget asWidget() {

        return existingBudgetsPagePanel;

    }

    private void loadBudgets() {

        errorLabel.setVisible(false);

        warningLabel.setVisible(false);

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

        budgetsForApprovalPanel.addStyleName("loading");

        budgetsForApprovalPanel.add(loadingWheel);

        if(Utils.currentUserHasRole("library_staff")) {

            List<String> organizationIds = new ArrayList<>();

            for(Affiliation affiliation : GoldOAPortal.currentUser.getAffiliations()) {

                if(affiliation.getOrganization()!=null)

                    organizationIds.add(affiliation.getOrganization().getId());

            }

            dataService.getBudgetsForOrganizations(organizationIds, new AsyncCallback<List<BudgetInfo>>() {

                @Override

                public void onFailure(Throwable throwable) {

                    budgetsForApprovalPanel.clear();

                    budgetsForApprovalPanel.removeStyleName("loading");

                    errorLabel.setText(goldOAConstants.errorGettingListOfBudgets());

                    errorLabel.setVisible(true);

                }

                @Override

                public void onSuccess(List<BudgetInfo> budgetInfoList) {

                    budgetsForApprovalPanel.clear();

                    budgetsForApprovalPanel.removeStyleName("loading");

                    if (budgetInfoList.isEmpty()) {

                        warningLabel.setText(goldOAConstants.warningNoBudgetsAvailable());

                        warningLabel.setVisible(true);

                    } else {

                        for (int i = 0; i < budgetInfoList.size(); i++)

                            drawBudgetInfo(budgetInfoList.get(i), i);

                    }

                }

            });

        } else {

            dataService.getBudgetsForUser(GoldOAPortal.currentUser.getId(), new AsyncCallback<List<BudgetInfo>>() {

                @Override

                public void onFailure(Throwable throwable) {

                    budgetsForApprovalPanel.clear();

                    budgetsForApprovalPanel.removeStyleName("loading");

                    errorLabel.setText(goldOAConstants.errorGettingListOfBudgets());

                    errorLabel.setVisible(true);

                }

                @Override

                public void onSuccess(List<BudgetInfo> budgetInfoList) {

                    budgetsForApprovalPanel.clear();

                    budgetsForApprovalPanel.removeStyleName("loading");

                    if (budgetInfoList.isEmpty()) {

                        warningLabel.setText(goldOAConstants.warningNoBudgetsAvailable());

                        warningLabel.setVisible(true);

                    } else {

                        for (int i = 0; i < budgetInfoList.size(); i++)

                            drawBudgetInfo(budgetInfoList.get(i), i);

                    }

                }

            });

        }

    }

    private void drawBudgetInfo(BudgetInfo budgetInfo, int i) {

        FlowPanel budgetElement = new FlowPanel();

        budgetElement.addStyleName("budgetRequest");

        if(((i+1)%2)==1)

            budgetElement.addStyleName("odd");

        BudgetInfoElement budgetInfoElement = new BudgetInfoElement(budgetInfo);

        budgetElement.add(budgetInfoElement.asWidget());

        budgetsForApprovalPanel.add(budgetElement);

    }

}