/*
 * Copyright 2012 LinkedIn Corp.
 * 
 * Licensed 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 azkaban.trigger.builtin;

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

import azkaban.trigger.TriggerAction;
import azkaban.utils.AbstractMailer;
import azkaban.utils.EmailMessage;
import azkaban.utils.Props;

public class SendEmailAction implements TriggerAction {
	
	private String actionId;
	private static AbstractMailer mailer;
	private String message;
	public static final String type = "SendEmailAction";
	private String mimetype = "text/html";
	private List<String> emailList;
	private String subject;
	
	public static void init(Props props) {
		mailer = new AbstractMailer(props);
	}
	
	public SendEmailAction(String actionId, String subject, String message, List<String> emailList) {
		this.actionId = actionId;
		this.message = message;
		this.subject = subject;
		this.emailList = emailList;
	}
	
	@Override
	public String getId() {
		return actionId;
	}

	@Override
	public String getType() {
		return type;
	}

	@SuppressWarnings("unchecked")
	public static SendEmailAction createFromJson(Object obj) throws Exception {
		Map<String, Object> jsonObj = (HashMap<String, Object>) obj;
		if(!jsonObj.get("type").equals(type)) {
			throw new Exception("Cannot create action of " + type + " from " + jsonObj.get("type"));
		}
		String actionId = (String) jsonObj.get("actionId");
		String subject = (String) jsonObj.get("subject");
		String message = (String) jsonObj.get("message");
		List<String> emailList = (List<String>) jsonObj.get("emailList");
		return new SendEmailAction(actionId, subject, message, emailList);
	}
	
	@Override
	public TriggerAction fromJson(Object obj) throws Exception {
		return createFromJson(obj);
	}

	@Override
	public Object toJson() {
		Map<String, Object> jsonObj = new HashMap<String, Object>();
		jsonObj.put("actionId", actionId);
		jsonObj.put("type", type);
		jsonObj.put("subject", subject);
		jsonObj.put("message", message);
		jsonObj.put("emailList", emailList);

		return jsonObj;
	}

	@Override
	public void doAction() throws Exception {
		EmailMessage email = mailer.prepareEmailMessage(subject, mimetype, emailList);
		email.setBody(message);
		email.sendEmail();
	}

	@Override
	public void setContext(Map<String, Object> context) {
		
	}

	@Override
	public String getDescription() {
		return type;
	}

	
}
