/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package de.unioninvestment.eai.portal.portlet.crud.scripting.model;

import groovy.lang.Closure;
import de.unioninvestment.eai.portal.portlet.crud.domain.events.ExecutionEvent;
import de.unioninvestment.eai.portal.portlet.crud.domain.events.ExecutionEventHandler;
import de.unioninvestment.eai.portal.portlet.crud.domain.model.TableAction;

/**
 * 
 * Repräsentiert ein Tabellenbutton.
 * 
 * @author siva.selvarajah
 */
public class ScriptTableAction {

	private ScriptTable scriptTable;
	private final TableAction action;

	private Closure<?> onExecution;

	/**
	 * Closure to generate downloadable Content. Will be called on execution.
	 * 
	 * @see TableAction#isDownloadAction()
	 * @since 1.46
	 * @author Jan Malcomess (codecentric AG)
	 */
	private Closure<?> downloadGenerator;

	/**
	 * Konstruktor mit Parameter.
	 * 
	 * @param action
	 *            Button unterhalb der Tabelle
	 */
	ScriptTableAction(final TableAction action) {
		this.action = action;
		action.addExecutionEventListener(new ExecutionEventHandler() {
			private static final long serialVersionUID = 1L;

			@Override
			public void onExecution(ExecutionEvent event) {
				if (onExecution != null) {
					onExecution.call(ScriptTableAction.this);
				}
				if (action.isDownloadAction()) {
					if (downloadGenerator == null) {
						throw new IllegalStateException(
								"No download-generator has been provided for the download-action with title '"
										+ action.getTitle()
										+ "' and id '"
										+ action.getId()
										+ "'. Please provide one in the generator attribute");
					}
					ScriptDownloadFactory factory = new ScriptDownloadFactory(action.getTable());
					downloadGenerator.call(
							ScriptTableAction.this,
							factory, factory);
				}
			}
		});
	}

	public String getId() {
		return action.getId();
	}

	public String getTitle() {
		return action.getTitle();
	}

	/**
	 * Führt den Closure aus.
	 * 
	 * @see ScriptTableAction#onExecution
	 */
	public void execute() {
		action.execute();
	}

	/**
	 * Gibt dem Button zugeordnette die Tabelle zurück.
	 * 
	 * @return Übergeordnete Tabelle
	 */
	public ScriptTable getTable() {
		return scriptTable;
	}

	void setTable(ScriptTable scriptTable) {
		this.scriptTable = scriptTable;
	}

	/**
	 * 
	 * @return Closure, das beim Betätigen des Tabellenbuttons ausgeführt wird.
	 */
	public Closure<?> getOnExecution() {
		return onExecution;
	}

	/**
	 * 
	 * @param onExecution
	 *            Closure, das beim Betätigen des Tabellenbuttons ausgeführt
	 *            werden soll.
	 */
	public void setOnExecution(Closure<?> onExecution) {
		this.onExecution = onExecution;
	}

	/**
	 * @return Closure to generate downloadable Content. Will be called on
	 *         execution.
	 * @since 1.46
	 * @author Jan Malcomess (codecentric AG)
	 */
	public Closure<?> getDownloadGenerator() {
		return downloadGenerator;
	}

	/**
	 * @param downloadGenerator
	 *            Closure to generate downloadable Content. Will be called on
	 *            execution.
	 * @since 1.46
	 * @author Jan Malcomess (codecentric AG)
	 */
	public void setDownloadGenerator(Closure<?> downloadGenerator) {
		this.downloadGenerator = downloadGenerator;
	}
}