package cse308.swift.server.notifications;

import java.util.ArrayList;
import java.util.Properties;

import javax.mail.Address;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMessage.RecipientType;

import org.apache.log4j.Logger;

import cse308.swift.shared.beans.ClientAccountData;

public class SwiftServerNotifier 
{
	/**
	 * Instance of the Log4j Logger
	 */
	static Logger logger = Logger.getLogger(SwiftServerNotifier.class.getName());
	
	/**
	 * Enum for the Service Providers, Provides the Suffixes for the Service providers
	 * @author Ray
	 */
	public enum ServiceProviders {
		VERIZON {
			public String toString() {
				return "@vtext.com";			
				}
		},
		SPRINT {
			public String toString() {
				return "@messaging.sprintpcs.com";			
				}
		},
		ATT {
			public String toString() {
				return "@txt.att.net";			
				}
		},
		TMOBILE {
			public String toString() {
				return "@tmomail.net";			
				}
		}
	}
	
	/**
	 * Sends a Notification to the User based on the User's Preference
	 * @param clientData The User's ClientAccountData
	 * @param subject The Subject of the Message
	 * @param notificationMessage The body of the Message
	 */
	public static void sendNotification(ClientAccountData clientData, String subject, 
			String notificationMessage)
	{
		String host = "smtp.gmail.com";
		String userid = "SwiftTradingServer";
		String password = "cse308swift";
		
		logger.info("Attempting to send Notification to " + clientData.getLastName() + ", " +
				clientData.getFirstName() + "\n\t Message: " + notificationMessage);
		
		if(clientData.isEmailAlerts() == false && clientData.isTextAlerts() == false)
		{
			logger.info("User Preference is set to NO Notifications!");
		}
		else 
		{
			try{
				Properties props = System.getProperties();
				props.put("mail.smtp.starttls.enable", "true");
				props.put("mail.smtp.host", host);
				props.setProperty("mail.transport.protocol", "smtps");
				props.put("mail.smtp.user", userid);
				props.put("mail.smtp.password", password);
				props.put("mail.smtp.port", "578");
				props.put("mail.smtps.auth", "true");
				Session session = Session.getDefaultInstance(props, null);
				MimeMessage message = new MimeMessage(session);
				try{
					message.setFrom(new InternetAddress("SwiftTradingServer"));
					ArrayList<javax.mail.internet.InternetAddress> toAddresses = new ArrayList<javax.mail.internet.InternetAddress>();
					if(clientData.isEmailAlerts())
					{
						toAddresses.add(new InternetAddress(clientData.getEmailAddress()));
					}
					if(clientData.isTextAlerts())
					{
						String cellNumber = clientData.getCellularPhoneNumber().replace("-", "");
						cellNumber = clientData.getCellularPhoneNumber().replace("(", "");
						cellNumber = clientData.getCellularPhoneNumber().replace(")", "");
						cellNumber = clientData.getCellularPhoneNumber().replace(" ", "");
						
						if(clientData.getCellularProvider().equalsIgnoreCase("VERIZON")){
							toAddresses.add(new InternetAddress(cellNumber + ServiceProviders.VERIZON));
						}
						else if(clientData.getCellularProvider().equalsIgnoreCase("ATT")){
							toAddresses.add(new InternetAddress(cellNumber + ServiceProviders.ATT));
						}
						else if(clientData.getCellularProvider().equalsIgnoreCase("TMOBILE")){
							toAddresses.add(new InternetAddress(cellNumber + ServiceProviders.TMOBILE));
						}
						else if(clientData.getCellularProvider().equalsIgnoreCase("SPRINT")){
							toAddresses.add(new InternetAddress(cellNumber + ServiceProviders.SPRINT));
						}
					}
					if(toAddresses.size() == 1)
					{
						message.addRecipient(RecipientType.TO, toAddresses.get(0));
					}
					else if(toAddresses.size() > 1)
					{
						String emailAddresses = toAddresses.get(0).getAddress() + ", " + toAddresses.get(1).getAddress();
						message.addRecipients(RecipientType.TO, emailAddresses);
					}
					
					message.setSubject(subject);
					message.setText(notificationMessage);
					
					Transport transport = session.getTransport("smtps");
					transport.connect(host, userid, password);
					transport.sendMessage(message, message.getAllRecipients());
					logger.info("Successfully Sent Noftification to " + clientData.getLastName() + ", " + clientData.getFirstName()
							+ "\n\t Message: " + notificationMessage);
					transport.close();
				}
				catch (AddressException ae)
				{
					logger.warn("Could Not Use Email Address for User: " + 
							clientData.getLastName() + ", " + clientData.getFirstName());
				}
			}
			catch (MessagingException e)
			{
				logger.warn("Could Not Email Notification to User: " + 
						clientData.getLastName() + ", " + clientData.getFirstName() 
						+ "\n \t Message: " + notificationMessage);
			}
		}
	}
}