package org.gcube.portlets.widgets.wstaskexecutor.client.view.binder;


import java.util.HashMap;
import java.util.Map;

import org.gcube.portlets.widgets.wstaskexecutor.shared.GcubeScope;

import com.github.gwtbootstrap.client.ui.ControlGroup;
import com.github.gwtbootstrap.client.ui.ListBox;
import com.github.gwtbootstrap.client.ui.Pager;
import com.github.gwtbootstrap.client.ui.TextBox;
import com.github.gwtbootstrap.client.ui.constants.ControlGroupType;
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.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Widget;


/**
 * The Class CreateTaskConfigurationView.
 *
 * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
 * May 4, 2018
 */
public abstract class ShowTaskConfigurationView extends Composite {

	/** The ui binder. */
	private static ShowTaskConfigurationViewUiBinder uiBinder =
		GWT.create(ShowTaskConfigurationViewUiBinder.class);

	/**
	 * The Interface CreateTaskConfigurationViewUiBinder.
	 *
	 * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
	 * May 4, 2018
	 */
	interface ShowTaskConfigurationViewUiBinder
		extends UiBinder<Widget, ShowTaskConfigurationView> {
	}

	/** The pager. */
	@UiField
	Pager pager;


	@UiField
	ListBox field_select_scope;

	@UiField
	TextBox field_key_param;

	@UiField
	TextBox field_value_param;

	@UiField
	ControlGroup cg_input_task_id;

	@UiField
	ControlGroup cg_select_vre;

	@UiField
	ControlGroup cg_input_key_param;

	@UiField
	ControlGroup cg_input_value_param;



	@UiField
	TextBox field_task_id;


	/** The folder id. */
	private String folderId;

	/** The map VR es. */
	private Map<String, GcubeScope> mapScopes = new HashMap<String, GcubeScope>();



	private String currentScope;


	/**
	 * Submit handler.
	 */
	public abstract void submitHandler();

	/**
	 * Sets the error.
	 *
	 * @param visible the visible
	 * @param error the error
	 */
	public abstract void setError(boolean visible, String error);



	/**
	 * Sets the confirm.
	 *
	 * @param visible the visible
	 * @param msg the msg
	 */
	public abstract void setConfirm(boolean visible, String msg);


	/**
	 * Because this class has a default constructor, it can
	 * be used as a binder template. In other words, it can be used in other
	 * *.ui.xml files as follows:
	 * <ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
	 *   xmlns:g="urn:import:**user's package**">
	 *  <g:**UserClassName**>Hello!</g:**UserClassName>
	 * </ui:UiBinder>
	 * Note that depending on the widget that is used, it may be necessary to
	 * implement HasHTML instead of HasText.
	 *
	 * @param folderId the folder id
	 */
	public ShowTaskConfigurationView(String folderId) {
		this.folderId = folderId;

		initWidget(uiBinder.createAndBindUi(this));

		pager.getLeft().setVisible(false);

		pager.getRight().addClickHandler(new ClickHandler() {

			@Override
			public void onClick(ClickEvent event) {
				setError(false, "");
				boolean isValid = validateSubmit();
				if(isValid)
					submitHandler();

			}
		});

	}


	/**
	 * Inits the field catalogue name.
	 */
	private void initFields() {

		field_task_id.setText("");
		field_key_param.setText("");
		field_value_param.setText("");
	}

	/**
	 * Validate submit.
	 *
	 * @return true, if successful
	 */
	protected boolean validateSubmit() {
		cg_input_task_id.setType(ControlGroupType.NONE);
		cg_input_key_param.setType(ControlGroupType.NONE);
		cg_input_value_param.setType(ControlGroupType.NONE);
		//cg_remote_path.setType(ControlGroupType.NONE);

		if(field_select_scope.getSelectedItemText()==null){
			cg_select_vre.setType(ControlGroupType.ERROR);
			setError(true, "You must select a Scope!");
			return false;
		}

		if(field_task_id.getValue() == null || field_task_id.getValue().isEmpty()){
			cg_input_task_id.setType(ControlGroupType.ERROR);
			setError(true, "You must type an Algorithm Identifier!");
			return false;
		}

		if(field_key_param.getValue() == null || field_key_param.getValue().isEmpty()){
			cg_input_key_param.setType(ControlGroupType.WARNING);
			setConfirm(true, "The key of input parameter is empty. Do you want continue anyway?");
			return false;
		}

		if(field_value_param.getValue() == null || field_value_param.getValue().isEmpty()){
			cg_input_key_param.setType(ControlGroupType.WARNING);
			setConfirm(true, "The value of input parameter is empty. Do you want continue anyway?");
			return false;
		}

		return true;
	}


	/**
	 * Gets the selected scope.
	 *
	 * @return the selected scope
	 */
	public GcubeScope getSelectedScope(){
		//String item = field_select_scope.getSelectedItemText();
		String text = field_select_scope.getSelectedValue();
		return mapScopes.get(text);
	}




}