/*
 *                                                                            
 *  Copyright (c) 2011 - 2017 - Loetz GmbH & Co KG, 69115 Heidelberg, Germany 
 *                                                                            
 *  All rights reserved. This program and the accompanying materials           
 *  are made available under the terms of the Eclipse Public License 2.0        
 *  which accompanies this distribution, and is available at                  
 *  https://www.eclipse.org/legal/epl-2.0/
 *
 *  SPDX-License-Identifier: EPL-2.0                                 
 *                                                                            
 *  Initial contribution:                                                      
 *     Loetz GmbH & Co. KG
 * 
 */
package org.eclipse.osbp.runtime.common.event;

import java.util.List;
import java.util.Map;
import java.util.concurrent.CopyOnWriteArrayList;

import org.eclipse.osgi.framework.eventmgr.CopyOnWriteIdentityMap;

/**
 * The Class EventDispatcherEvent.
 */
public class EventDispatcherEvent {
	
	/**
	 * The Enum EventDispatcherCommand.
	 */
	public enum EventDispatcherCommand {
		/** something was selected. */
		SELECT,
		/** something requested a refresh. */
		REFRESH,
		/** The user saved. */
		SAVE, 
		/** The user deleted. */
		DELETE,
		/** The user wants change info */
		INFO,
		/** The user started an action. */
		ACTION,
		/** Process finished. */
		FINISHED,
		/** Answer is yes. */
		YES,
		/** Answer is no. */
		NO,
		/** Close window. */
		CLOSE,
		/** Answer is ok. */
		OK,
		/** show bpmn. */
		BPMN
	}

	/**
	 * The Enum EventDispatcherDataTag.
	 */
	public enum EventDispatcherDataTag {
		/** The id. values are of type id or uuid */
		ID, 
		/** The id of the pressed action button */
		BUTTON_ID, 
		/** The id of an started human task (bpmn) */
		TASK_ID, 
		/** The list of objects. */
		LIST,
		/** a filled dto object. */
		DTO,
		/** an IUser object. */
		USER,
		/** any object. */
		OBJECT
	}

	/** The command. */
	private EventDispatcherCommand command;
	
	/** The sender class. */
	private String sender;
	
	/** The topic. */
	private String topic;
	
	/** The data. */
	private Map<EventDispatcherDataTag, Object> data = new CopyOnWriteIdentityMap<>();

	/**
	 * Instantiates a new event dispatcher event.
	 *
	 * @param command the command
	 * @param topic the topic
	 */
	public EventDispatcherEvent(EventDispatcherCommand command, String topic, String sender) {
		this.command = command;
		this.topic = topic;
		this.sender = sender;
	}

	/**
	 * Gets the command.
	 *
	 * @return the command
	 */
	public EventDispatcherCommand getCommand() {
		return command;
	}

	/**
	 * Sets the command.
	 *
	 * @param command the new command
	 */
	public void setCommand(EventDispatcherCommand command) {
		this.command = command;
	}

	/**
	 * Gets the topic.
	 *
	 * @return the topic
	 */
	public String getTopic() {
		return topic;
	}

	/**
	 * Sets the topic.
	 *
	 * @param topic the new topic
	 */
	public void setTopic(String topic) {
		this.topic = topic;
	}

	/**
	 * Gets the data.
	 *
	 * @return the data
	 */
	public Map<EventDispatcherDataTag, Object> getData() {
		return data;
	}

	/**
	 * Sets the data.
	 *
	 * @param data the data
	 */
	public void setData(Map<EventDispatcherDataTag, Object> data) {
		this.data = data;
	}

	/**
	 * Adds the item data.
	 *
	 * @param tag the tag
	 * @param item the item
	 */
	@SuppressWarnings("unchecked")
	public void addItem(EventDispatcherDataTag tag, Object item) {
		if(tag == EventDispatcherDataTag.LIST) {
			if(!data.containsKey(EventDispatcherDataTag.LIST)) {
				data.put(EventDispatcherDataTag.LIST, new CopyOnWriteArrayList<String>());
			}
			((List<String>)data.get(EventDispatcherDataTag.LIST)).add((String)item);
		} else {
			data.put(tag, item);
		}
	}

	@SuppressWarnings("unchecked")
	public void addData(List<IDualData> selectedData) {
		if(!data.containsKey(EventDispatcherDataTag.LIST)) {
			data.put(EventDispatcherDataTag.LIST, new CopyOnWriteArrayList<String>());
		}
		for(IDualData dd : selectedData){
			((List<String>)data.get(EventDispatcherDataTag.LIST)).add(dd.getSelectionValue());
		}
	}

	/**
	 * Gets the sender.
	 *
	 * @return the sender id
	 */
	public String getSender() {
		return sender;
	}

	/**
	 * Sets the sender id.
	 *
	 * @param sender the new sender
	 */
	public void setSender(String sender) {
		this.sender = sender;
	}
}