package org.gcube.portlets.user.geoportaldataviewer.client.ui;

import java.util.List;

import org.gcube.application.geoportalcommon.shared.ResultSetPaginatedData;
import org.gcube.application.geoportalcommon.shared.SearchingFilter;
import org.gcube.portlets.user.geoportaldataviewer.client.util.LoaderIcon;

import com.github.gwtbootstrap.client.ui.Button;
import com.github.gwtbootstrap.client.ui.DropdownButton;
import com.github.gwtbootstrap.client.ui.ListBox;
import com.github.gwtbootstrap.client.ui.NavLink;
import com.github.gwtbootstrap.client.ui.TextBox;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.shared.HandlerManager;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Widget;


/**
 * The Class SearchFacilityUI.
 *
 * @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
 * 
 * Dec 14, 2021
 */
public class SearchFacilityUI extends Composite {

	private static SearchFacilityPanelUiBinder uiBinder = GWT.create(SearchFacilityPanelUiBinder.class);

	protected static final int MIN_LENGHT_SERCHING_STRING = 3;

	@UiField
	ListBox listBoxSortBy;

	@UiField
	ListBox listBoxSearchFor;

	@UiField
	TextBox searchField;

	@UiField
	NavLink sortByToogle;

	@UiField
	Button resetSearch;

	@UiField
	HTMLPanel panelResults;

	@UiField
	HorizontalPanel toogleSortBy;

//	private List<ItemField> searchForFields;
//
//	private List<ItemField> sortByFields;

	private SearchingFilter currentSortFilter;

	private HandlerManager appManagerBus;

	private static final String LABEL_FILTER_SEPARATOR = " - ";
	
	private ResultSetPaginatedData latestResult;

	private DropdownButton searchFacilityButton;

	/**
	 * The Interface SearchFacilityPanelUiBinder.
	 *
	 * @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
	 * 
	 * Dec 14, 2021
	 */
	interface SearchFacilityPanelUiBinder extends UiBinder<Widget, SearchFacilityUI> {
	}

//	/**
//	 * Instantiates a new search facility UI.
//	 *
//	 * @param appManagerBus the app manager bus
//	 * @param sortByFields the sort by fields
//	 * @param searchForFields the search for fields
//	 * @param initialSortFilter the initial sort filter
//	 */
//	public SearchFacilityUI(HandlerManager appManagerBus, List<ItemField> sortByFields, List<ItemField> searchForFields,
//			SearchingFilter initialSortFilter) {
//		initWidget(uiBinder.createAndBindUi(this));
//		this.searchForFields = searchForFields;
//		this.currentSortFilter = initialSortFilter;
//		this.sortByFields = sortByFields;
//		this.appManagerBus = appManagerBus;
//
//		resetSearch.setType(ButtonType.LINK);
//
//		listBoxSortBy.setWidth("180px");
//		listBoxSearchFor.setWidth("140px");
//
//		bindEvents();
//	}

//	/**
//	 * To label filter.
//	 *
//	 * @param itemField the item field
//	 * @param direction the direction
//	 * @return the string
//	 */
//	private String toLabelFilter(ItemField itemField, ORDER direction) {
//		String labelFilter = itemField.getDisplayName() + LABEL_FILTER_SEPARATOR + direction.name();
//		return labelFilter;
//	}

	/**
	 * Bind events.
	 */
//	private void bindEvents() {
//
//		for (ItemField record_FIELD : sortByFields) {
//			if(record_FIELD.isSortable()) {
//				String labelASC = toLabelFilter(record_FIELD, ORDER.ASC);
//				String labelDESC = toLabelFilter(record_FIELD, ORDER.DESC);
//				listBoxSortBy.addItem(labelASC);
//				listBoxSortBy.addItem(labelDESC);
//			}
//		}
//
//		listBoxSortBy.addChangeHandler(new ChangeHandler() {
//
//			@Override
//			public void onChange(ChangeEvent event) {
//				if(latestResult!=null && latestResult.getData().size()>0) {
//					doSearchEvent();
//				}
//			}
//		});
//
//		for (ItemField record_FIELD : searchForFields) {
//			GWT.log("search for: "+record_FIELD);
//			if(record_FIELD.isSearchable()) {
//				listBoxSearchFor.addItem(record_FIELD.getDisplayName());
//			}
//		}
//
//		listBoxSearchFor.addChangeHandler(new ChangeHandler() {
//
//			@Override
//			public void onChange(ChangeEvent event) {
//				if (searchField.getText().length() >= MIN_LENGHT_SERCHING_STRING) {
//					doSearchEvent();
//				}
//
//			}
//		});
//
//		sortByToogle.addClickHandler(new ClickHandler() {
//
//			@Override
//			public void onClick(ClickEvent event) {
//				if (toogleSortBy.isVisible())
//					toogleSortBy.setVisible(false);
//				else
//					toogleSortBy.setVisible(true);
//
//			}
//		});
//
//		searchField.addKeyPressHandler(new KeyPressHandler() {
//
//			@Override
//			public void onKeyPress(KeyPressEvent event) {
//				if (com.google.gwt.event.dom.client.KeyCodes.KEY_ENTER == event.getCharCode()) {
//					GWT.log(searchField.getText());
//					doSearchEvent();
//				}
//
//			}
//		});
//
//		resetSearch.addClickHandler(new ClickHandler() {
//
//			@Override
//			public void onClick(ClickEvent event) {
//				searchField.setText("");
//				resetSearch.setVisible(false);
//				panelResults.clear();
//				latestResult = null;
//				appManagerBus.fireEvent(new SearchPerformedEvent(null,true));
//				setSearchEnabled(false);
//			}
//		});
//
//	}
	
	private void setSearchEnabled(boolean bool) {
		if(bool) {
			searchFacilityButton.getElement().addClassName("highlight-button");
		}
		else {
			searchFacilityButton.getElement().removeClassName("highlight-button");	
		}
	}

	/**
	 * Search concessioni.
	 */
	private void searchConcessioni() {

		SearchingFilter filter = getCurrentSortFilter();
		panelResults.clear();
		panelResults.add(new HTML("<hr>"));
		panelResults.add(new LoaderIcon("TODO..."));
		//TODO 
		
//		GeoportalDataViewerServiceAsync.Util.getInstance().getListConcessioni(0, 30, filter, false,
//				new AsyncCallback<ResultSetPaginatedData>() {
//
//					
//
//					@Override
//					public void onFailure(Throwable caught) {
////						showLoading(false);
////						Window.alert(caught.getMessage());
//						panelResults.clear();
//						panelResults.add(new HTML("<hr>"));
//						Alert alert = new Alert("Error on searching. Please, refresh or change the search");
//						alert.setType(AlertType.ERROR);
//						alert.setClose(false);
//						panelResults.add(alert);
//					}
//
//					@Override
//					public void onSuccess(ResultSetPaginatedData result) {
//						
//						appManagerBus.fireEvent(new SearchPerformedEvent(result.getData(),false));
//						setSearchEnabled(true);
//						latestResult = result;
//
//						panelResults.clear();
//						panelResults.add(new HTML("<hr>"));
//
//						if (result.getData().size() == 0) {
//							panelResults.add(new HTML("No result found"));
//							return;
//						}
//
//						FlexTable ft = new FlexTable();
//						ft.getElement().setClassName("table-results");
//						int i = 1;
//						ft.setWidget(0, i, new HTML("Nome Progetto"));
//
//						String selValue = listBoxSearchFor.getSelectedValue().toLowerCase();
//						
//						boolean addIntroduction = false;
//						if(selValue.startsWith("proj") || selValue.startsWith("any")) {
//							ft.setWidget(0, ++i, new HTML("Introduzione"));
//							addIntroduction = true;
//						}
//						
//						boolean addStaff = false;
//						if(selValue.startsWith("director")) {
//							ft.setWidget(0, ++i, new HTML("Autori"));
//							ft.setWidget(0, ++i, new HTML("Responsabile"));
//							ft.setWidget(0, ++i, new HTML("Editore"));
//							ft.setWidget(0, ++i, new HTML("Titolari"));
//							ft.setWidget(0, ++i, new HTML("Contributore"));
//							addStaff = true;
//						}
//						boolean addParole = false;
//						if(selValue.startsWith("keyword")) {
//							ft.setWidget(0, ++i, new HTML("Parole Libere"));
//							ft.setWidget(0, ++i, new HTML("Parole Cronologia"));
//							addParole = true;
//						}
//
//						i = 1;
//						for (ConcessioneDV concessione : result.getData()) {
//							int j = -1;
//							
//							NavLink locateOnMap = new NavLink("Show");
//							locateOnMap.setTitle("Locate on the Map and show details");
//							locateOnMap.setIcon(IconType.MAP_MARKER);
//							
//							locateOnMap.addClickHandler(new ClickHandler() {
//								
//								@Override
//								public void onClick(ClickEvent event) {
//									GeoNaItemRef gir = new GeoNaItemRef(concessione.getItemId(), GeoportalDataViewerConstants.RECORD_TYPE.CONCESSIONE.toString());
//									appManagerBus.fireEvent(new ShowDetailsEvent(gir, null, null));
//									appManagerBus.fireEvent(new ShowPopupOnCentroiEvent(concessione));
//									
//								}
//							});
//							
//							ft.setWidget(i, ++j, locateOnMap);
//							
//							
//							ft.setWidget(i, ++j, new HTML(concessione.getNome()));
//							if(addIntroduction)
//								ft.setWidget(i, ++j, new HTML(StringUtil.ellipsize(concessione.getIntroduzione(), 200)));
//							
//							if(addStaff) {
//								ft.setWidget(i, ++j, new HTML(toDisplayList(concessione.getAuthors())));
//								ft.setWidget(i, ++j, new HTML(toDisplayList(Arrays.asList(concessione.getResponsabile()))));
//								ft.setWidget(i, ++j, new HTML(toDisplayList(Arrays.asList(concessione.getEditore()))));
//								ft.setWidget(i, ++j, new HTML(toDisplayList(concessione.getTitolari())));
//								ft.setWidget(i, ++j, new HTML(toDisplayList(Arrays.asList(concessione.getContributore()))));
//							}
//							
//							if(addParole) {
//								ft.setWidget(i, ++j, new HTML(toDisplayList(concessione.getParoleChiaveLibere())));
//								ft.setWidget(i, ++j, new HTML(toDisplayList(concessione.getParoleChiaveICCD())));
//							}
//								
//							
////							List<UploadedImageDV> listImg = concessione.getImmaginiRappresentative();
////							GWT.log(listImg.toString());
////							boolean imagePreviewFound = false;
////							if (listImg != null && listImg.size() > 0) {
////
////								UploadedImageDV uImg = listImg.get(0);
////
////								if (uImg != null && uImg.getListWsContent() != null
////										&& uImg.getListWsContent().size() > 0) {
////									WorkspaceContentDV wsc = uImg.getListWsContent().get(0);
////									String image = "<img style=\"width:50px;height:50px;\" src='" + wsc.getLink()
////											+ "' alt='" + wsc.getName() + "'>";
////									ft.setWidget(i, 2, new HTML(image));
////									imagePreviewFound = true;
////								}
////							}
////
////							if (!imagePreviewFound) {
////								ft.setWidget(i, 2, new Image(GNAImages.ICONS.italyIcon()));
////							}
//							
//							i++;
//						}
//
//						panelResults.add(ft);
//
//					}
//				});
	}
	
	/**
	 * To display authors.
	 *
	 * @param listValues the list values
	 * @return the string
	 */
	private String toDisplayList(List<String> listValues) {
		String toDisplay = "";
		if (listValues == null)
			return toDisplay;

		for (String author : listValues) {
			toDisplay += author + "; ";
		}
		return toDisplay;
	}

	/**
	 * Do search event.
	 */
	private void doSearchEvent() {
		String searchText = searchField.getText();
		if (searchText.length() < MIN_LENGHT_SERCHING_STRING) {
			Window.alert("Please enter at least " + MIN_LENGHT_SERCHING_STRING + " characters");
			return;
		}

		resetSearch.setVisible(true);
		// appManagerBus.fireEvent(new GetListOfRecordsEvent(RECORD_TYPE.CONCESSIONE,
		// getCurrentSortFilter()));

		searchConcessioni();
	}

//	/**
//	 * To sort filter.
//	 *
//	 * @param labelFilter the label filter
//	 * @return the searching filter
//	 */
//	public SearchingFilter toSortFilter(String labelFilter) {
//		GWT.log("toSortFilter for label " + labelFilter);
//		String[] array = labelFilter.split(LABEL_FILTER_SEPARATOR);
//
//		SearchingFilter sortFilter = null;
//		try {
//			ItemField recordField = null;
//			for (ItemField value : sortByFields) {
//				if (array[0].equalsIgnoreCase(value.getDisplayName())) {
//					recordField = value;
//					break;
//				}
//			}
//			ORDER orderField = ORDER.valueOf(array[1]);
//			sortFilter = new SearchingFilter(Arrays.asList(recordField), orderField);
//		} catch (Exception e) {
//
//		}
//		GWT.log("toSortFilter Got " + sortFilter);
//		return sortFilter;
//
//	}

	/**
	 * Built searching filter.
	 *
	 * @return the searching filter
	 */
	//TODO
	
//	private SearchingFilter builtSearchingFilter() {
//		SearchingFilter searchingFilter = toSortFilter(listBoxSortBy.getSelectedValue());
//		String searchText = searchField.getText();
//		if (searchText != null && !searchText.isEmpty()) {
//			Map<String, Object> searchInto = new HashMap<String, Object>();
//
//			List<String> listOfSeachingFields = new ArrayList<String>();
//
//			for (ItemField recordField : searchForFields) {
//				if (recordField.getDisplayName().equals(listBoxSearchFor.getSelectedValue())) {
//					listOfSeachingFields = recordField.getJsonFields();
//					continue;
//				}
//			}
//			
//			if(listOfSeachingFields.size()==0) {
//				listOfSeachingFields.add("nome");
//			}
//			for (String fieldname : listOfSeachingFields) {
//				searchInto.put(fieldname, searchText);
//			}
//			
//			WhereClause where = new WhereClause();
//			where.setSearchInto(searchInto);
//			where.setOperator(LOGICAL_OP.OR);
//			
//			//THIS CLAUSE IS ADDED IN ORDER TO SEARCH ONLY PUBLISHED PRODUCT (WITH SUCCESS)
//			Map<String, Object> searchInto2 = new HashMap<String, Object>();
//			searchInto2.put("report.status", "PASSED");
//			WhereClause where2 = new WhereClause(LOGICAL_OP.AND, searchInto2);
//			
//			searchingFilter.setConditions(Arrays.asList(where, where2));
//		}
//		return searchingFilter;
//	}

	/**
	 * Gets the current sort filter.
	 *
	 * @return the current sort filter
	 */
	public SearchingFilter getCurrentSortFilter() {
		
		//TODO
		//currentSortFilter = builtSearchingFilter();
		GWT.log("currentSortFilter: " + currentSortFilter);
		return currentSortFilter;
	}

	public void setSearchButton(DropdownButton searchFacilityButton) {
		this.searchFacilityButton = searchFacilityButton;
		
	}

}