package turistinfo;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.HashMap;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class MailClient {

	private static HashMap<String, Boolean> notificationMap = new HashMap<>();

	static {
		notificationMap.put("Info Grad", false);
		notificationMap.put("Info Hotel", false);
		notificationMap.put("Info Bus", false);
		notificationMap.put("Info Event", false);
		notificationMap.put("Info Vrijeme", false);
		notificationMap.put("Info Admin", false);
	}

	private static String username;
	private static String password;

	public static Properties loadMailConfig() throws FileNotFoundException, IOException {
		Properties serverprop = new Properties();
		serverprop.load(new FileInputStream(new File("src/mail/server.properties")));
		String mailProvider = serverprop.getProperty("mail_provider");

		System.out.println("Koristi se " + mailProvider);

		Properties mailProp = new Properties();
		mailProp.load(new FileInputStream(new File("src/mail" + File.separator + mailProvider + ".properties")));

		username = mailProp.getProperty("username");
		password = mailProp.getProperty("password");
		return mailProp;
	}

	public static boolean sendMail(String to, String title, String body, String service) throws FileNotFoundException, IOException {

		//check if the mail is already sent for specified service
		if ( notificationMap.get(service) ){
			return false;
		}

		Properties props = loadMailConfig();

		Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator() {
			protected PasswordAuthentication getPasswordAuthentication() {
				return new PasswordAuthentication(username, password);
			}
		});

		try {
			Message message = new MimeMessage(session);
			message.setFrom(new InternetAddress(username));
			message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
			message.setSubject(title);
			message.setText(body);
			Transport.send(message);
			return true;
		} catch (MessagingException e) {
			e.printStackTrace();
			return false;
		}
	}
}