/*  _____ _
 * |_   _| |_  _ _ ___ ___ _ __  __ _
 *   | | | ' \| '_/ -_) -_) '  \/ _` |_
 *   |_| |_||_|_| \___\___|_|_|_\__,_(_)
 *
 * Threema for Android
 * Copyright (c) 2013-2020 Threema GmbH
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

package ch.threema.app.utils;

import android.telephony.SmsMessage;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public abstract class SMSUtil {

	/**
	 * Parse a cursor and create a threema sms if the sender is "threema" and the code in the body
	 *
	 * @param smsMessage
	 * @return
	 */
	public static String getCodeFromMessage(SmsMessage smsMessage) {
		String body = smsMessage.getDisplayMessageBody();

		Pattern codePattern = Pattern.compile(".*https://myid.threema.ch/l/vm\\?code=(\\d{6})", Pattern.CASE_INSENSITIVE);
		Matcher m = codePattern.matcher(body);
		if (m.find()) {
			String code = m.group(1);
			if(code.length() > 0) {
				return code;
			}
		}

		return null;
	}
}
