package org.gcube.portlets.user.geoportaldataentry.client.ui.form;

import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;

import org.gcube.portlets.user.geoportaldataentry.client.events.SaveGeonaDataFormsEvent;
import org.gcube.portlets.user.geoportaldataentry.client.ui.card.GeoNaFormCardModel;
import org.gcube.portlets.user.geoportaldataentry.client.ui.card.MetadataFormCard;
import org.gcube.portlets.user.geoportaldataentry.shared.GeoNaFormDataObject;
import org.gcube.portlets.widgets.mpformbuilder.client.form.generic.CreateMetadataForm;
import org.gcube.portlets.widgets.mpformbuilder.shared.GenericDatasetBean;

import com.github.gwtbootstrap.client.ui.AlertBlock;
import com.github.gwtbootstrap.client.ui.Button;
import com.github.gwtbootstrap.client.ui.FormActions;
import com.github.gwtbootstrap.client.ui.Tab;
import com.github.gwtbootstrap.client.ui.TabPanel;
import com.github.gwtbootstrap.client.ui.constants.AlertType;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
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.uibinder.client.UiHandler;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * The Class GeonaDataEntryMainForm.
 *
 * @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
 * 
 *         Mar 4, 2022
 */
public class GeonaDataEntryMainForm extends Composite {

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

	/**
	 * The Interface GeonaDataEntryMainFormUiBinder.
	 *
	 * @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
	 * 
	 *         Mar 4, 2022
	 */
	interface GeonaDataEntryMainFormUiBinder extends UiBinder<Widget, GeonaDataEntryMainForm> {
	}

	private List<GeoNaFormCardModel> listCards = new ArrayList<GeoNaFormCardModel>();

	@UiField
	HTMLPanel mainHTMLPanel;

	@UiField
	TabPanel mainTabPanel;

	@UiField
	AlertBlock alertFormAction;

	@UiField
	Button buttonSave;

	@UiField
	FormActions formActions;

	private LinkedHashMap<String, MetadataFormCard> mapForms = new LinkedHashMap<String, MetadataFormCard>();

	private List<Tab> listTabs = new ArrayList<Tab>();

	private HandlerManager appManagerBus;

	/**
	 * Instantiates a new geona data entry main form.
	 *
	 * @param appManagerBus the app manager bus
	 */
	public GeonaDataEntryMainForm(HandlerManager appManagerBus) {
		initWidget(uiBinder.createAndBindUi(this));
		this.appManagerBus = appManagerBus;
	}

	/**
	 * Adds the form.
	 *
	 * @param tabHeading    the tab heading
	 * @param geonFormModel the geon form model
	 */
	public void addForm(String tabHeading, GeoNaFormCardModel geonFormModel) {
		listCards.add(geonFormModel);
		createNewCard(tabHeading, geonFormModel);
	}

	/**
	 * Creates the new card.
	 *
	 * @param tabHeading    the tab heading
	 * @param geonFormModel the geon form model
	 */
	private void createNewCard(String tabHeading, final GeoNaFormCardModel geonFormModel) {
		final Tab tab = new Tab();
		tab.setHeading(tabHeading);
		// MetadataFormCard mfc = new MetadataFormCard(tab, createMetadataForm,
		// repeatible);
		MetadataFormCard mfc = new MetadataFormCard(tab, geonFormModel, appManagerBus);
		listTabs.add(tab);
		mainTabPanel.add(tab);

		if (listTabs.size() == 1) {
			tab.setActive(true);
			mainTabPanel.selectTab(0);
		}

		mapForms.put(tabHeading, mfc);
	}

	/**
	 * Reset.
	 */
	public void reset() {
		mapForms.clear();
		mainTabPanel.clear();
		listTabs.clear();
	}

	/**
	 * Select tab.
	 *
	 * @param index the index
	 */
	public void selectTab(int index) {

		GWT.log("Selecting tab index: " + index + " of " + listTabs.size());

		if (listTabs.size() < index) {
			mainTabPanel.selectTab(index);

		}
	}

	/**
	 * Save data.
	 *
	 * @param e the e
	 */
	@UiHandler("buttonSave")
	void saveData(ClickEvent e) {

		boolean canSave = true;

		for (String metadataType : mapForms.keySet()) {
			MetadataFormCard card = mapForms.get(metadataType);
			boolean isValid = card.validateForm();
			card.setValidCard(isValid);
			if (isValid == false)
				canSave = false;
		}

		List<GeoNaFormDataObject> listGeonaFormObjects = new ArrayList<GeoNaFormDataObject>();

		if (canSave) {
			for (String metadataType : mapForms.keySet()) {
				MetadataFormCard card = mapForms.get(metadataType);
				List<GenericDatasetBean> listGDB = new ArrayList<GenericDatasetBean>(card.getListForms().size());
				for (CreateMetadataForm form : card.getListForms()) {
					listGDB.add(form.getFormDataBean());

				}
				listGeonaFormObjects.add(new GeoNaFormDataObject(listGDB, card.getGeonaFormModel().getFormCard()));
			}
			appManagerBus.fireEvent(new SaveGeonaDataFormsEvent(listGeonaFormObjects));
		} else {
			showAlertOnSaveAction("Detected errors, please fix it/them", AlertType.ERROR, true);
		}

		// Window.alert("I can save: "+listGeonaFormObjects);

	}

	/**
	 * Show alert on save action.
	 *
	 * @param text            the text
	 * @param type            the type
	 * @param hideAfterAWhile the hide after A while
	 */
	public void showAlertOnSaveAction(String text, AlertType type, boolean hideAfterAWhile) {

		// Window.alert("Called alertOnCreate");
		alertFormAction.setText(text);
		alertFormAction.setType(type);
		alertFormAction.setVisible(true);
		// goBackButtonSecondStep.setEnabled(true);

		if (hideAfterAWhile) {
			// hide after some seconds
			Timer t = new Timer() {

				@Override
				public void run() {

					alertFormAction.setVisible(false);

				}
			};
			t.schedule(10000);
		}
	}

	/**
	 * Enable button save.
	 *
	 * @param enabled the enabled
	 */
	public void enableButtonSave(boolean enabled) {
		buttonSave.setEnabled(enabled);
	}

	/**
	 * Sets the ative after.
	 *
	 * @param index the index
	 * @param bool  the bool
	 */
	public void setAtiveAfter(int index, boolean bool) {

//		if(listTabs.size()<index) {
//			for (int i = index; i < listTabs.size(); i++) {
//				listTabs.get(i).setEnabled(bool);
//			}
//		}
	}

	/**
	 * Sets the visible form actions.
	 *
	 * @param bool the new visible form actions
	 */
	public void setVisibleFormActions(boolean bool) {
		formActions.setVisible(bool);
	}

}