/*******************************************************************************
 * Copyright 2017 Bstek
 *
 * 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 com.bstek.ureport.console;

import jakarta.servlet.http.HttpServletRequest;

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

/**
 * @author Jacky.gao
 * @since 2017年10月11日
 */
public class MobileUtils {
	private static String phoneReg = "\\b(ip(hone|od)|android|opera m(ob|in)i"
		+ "|windows (phone|ce)|blackberry"
		+ "|s(ymbian|eries60|amsung)|p(laybook|alm|rofile/midp"
		+ "|laystation portable)|nokia|fennec|htc[-_]"
		+ "|mobile|up.browser|[1-4][0-9]{2}x[1-4][0-9]{2})\\b";
	private static String tableReg = "\\b(ipad|tablet|(Nexus 7)|up.browser"
		+ "|[1-4][0-9]{2}x[1-4][0-9]{2})\\b";
	private static Pattern phonePat = Pattern.compile(phoneReg, Pattern.CASE_INSENSITIVE);
	private static Pattern tablePat = Pattern.compile(tableReg, Pattern.CASE_INSENSITIVE);

	public static boolean isMobile(HttpServletRequest req) {
		String userAgent = req.getHeader("USER-AGENT");
		if (userAgent == null) {
			userAgent = "";
		}
		userAgent = userAgent.toLowerCase();
		Matcher matcherPhone = phonePat.matcher(userAgent);
		Matcher matcherTable = tablePat.matcher(userAgent);
		if (matcherPhone.find() || matcherTable.find()) {
			return true;
		} else {
			return false;
		}
	}
}
