package cn.com.lzt.common.util;

import org.apache.commons.lang.RandomStringUtils;
import org.jsoup.Jsoup;
import org.jsoup.safety.Whitelist;

import java.io.File;
import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class StringUtil {

	public static String _HREF_URL_REGEX = "(http:|https:)//[^[A-Za-z0-9\\._\\?%&+\\-=/#!]]*";
	public static final String EMPTY_STRING = "";
	private static char chars[] = "0123456789abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();
	private static final char IntChars[] = "1234567890".toCharArray();

	public static String formatDate(String pattern, Date date) {
		SimpleDateFormat formator = new SimpleDateFormat();
		formator.applyPattern(pattern);
		return formator.format(date);
	}

	public static String getDateTime() {
		SimpleDateFormat ymdhms = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		return ymdhms.format(new Date());
	}

	public static String getUUID(int length) {
		return RandomStringUtils.randomNumeric(length);
	}

	public static void setImageBasepath(String basepath,
			List<Map<String, Object>> list) {
		if (list != null && list.size() > 0) {
			for (Map<String, Object> map : list) {
				if (map != null) {
					if (map.get("imgurl") != null)
						map.put("imgurl", basepath + map.get("imgurl"));
				}
			}
		}
	}

	public static String getUploadpath(String uploaddir, String relativePath) {
		String uploadpath = uploaddir + relativePath;
		File file = new File(uploadpath);
		if (!file.exists())
			file.mkdirs();
		return uploadpath;
	}

	/**
	 * 将null转换为空字符串
	 * @author yulong.zhao
	 *
	 * @date 2016年11月9日上午11:48:49
	 * @param object
	 * @return
	 */
	public static String nullToBlank(Object object){
		if(object == null){
			return "";
		}else{
			return String.valueOf(object);
		}
	}

	/**
	 * 驼峰命名xxx_abc -> xxxAbc
	 */
	public static String underlineToCamel(String name) {
		name = name.trim();
		int len = name.length();
		StringBuilder sb = new StringBuilder(len);
		for (int i = 0; i < len; i++) {
			char c = name.charAt(i);
			if (c == '_') {
				if (++i < len) {
					sb.append(Character.toUpperCase(name.charAt(i)));
				}
			} else {
				sb.append(c);
			}
		}
		return sb.toString();
	}
	/**
	 * 驼峰转下划线
	 * @param str 需要转换的字符串
	 * @return
	 */
	public static String camelToUnderline(String str) {
		Pattern humpPattern = Pattern.compile("[A-Z]");
		Matcher matcher = humpPattern.matcher(str);
		StringBuffer sb = new StringBuffer();
		while (matcher.find()) {
			matcher.appendReplacement(sb, "_" + matcher.group(0).toLowerCase());
		}
		matcher.appendTail(sb);
		return sb.toString();
	}
	/**
	 * 判断是否是空字符串 null和"" 都返回 true
	 *
	 * @author Robin Chang
	 * @param s
	 * @return
	 */
	public static boolean isEmpty(String s) {
		if (s != null && !s.equals("")) {
			return false;
		}
		return true;
	}
	/**
	 * 连接对象
	 * @param objs
	 * @return
	 */
	public static String concat(Object...objs) {

		if(objs==null || objs.length<1)return EMPTY_STRING;
		StringBuffer sb = new StringBuffer();
		for(Object obj : objs){
			sb.append(obj==null?EMPTY_STRING:obj.toString());
		}
		return sb.toString();
	}

	/**
	 * 获得int
	 * @param val
	 * @return
	 */
	public static int getInt(String val){
		return getInt(val,-1);
	}
	/**
	 * 获得int
	 * @param val
	 * @return
	 */
	public static int getInt(Object val){
		if(val == null) return -1;
		return getInt(val.toString(),-1);
	}
	/**
	 * 获得int
	 * @param val
	 * @param def
	 * @return
	 */
	public static int getInt(Object val,int def){
		try{
			return Integer.parseInt(val.toString().trim());
		}catch(Exception e){
			return def;
		}
	}
	/**
	 * 获得long
	 * @param val
	 * @return
	 */
	public static long getLong(String val ) {

		return getLong(val,-1);
	}
	/**
	 * 获得long
	 * @param object
	 * @return
	 */
	public static long getLong(Object object) {

		return getLong(get(object.toString(),"-1"),-1);
	}
	/**
	 * 获得long
	 * @param val
	 * @param def
	 * @return
	 */
	public static long getLong(String val,long def){
		try{
			return Long.parseLong(val.trim());
		}catch(Exception e){
			return -1;
		}
	}

	/**
	 * 获得boolean
	 * @param val
	 * @return
	 */
	public static boolean getBoolean(String val){
		return getBoolean(val,false);
	}
	/**
	 * 获得boolean
	 * @param val
	 * @param def
	 * @return
	 */
	public static boolean getBoolean(String val,boolean def){
		if(ValidateUtil.isNull(val))return def;
		try{
			return Boolean.parseBoolean(val);
		}catch(Exception e){
			return def;
		}
	}
	/**
	 * 获得double
	 * @param value
	 * @return
	 */
	public static double getDouble(String value){
		return getDouble(value,0.00);
	}
	/**
	 * 获得double
	 * @param value
	 * @param def
	 * @return
	 */
	public static double getDouble(String value,double def){
		try{
			return Double.valueOf(value).doubleValue();
		}catch(Exception e){
			return def;
		}
	}

	/**
	 * 返回Trim后的值
	 * @param val
	 * @return
	 */
	public static String getTrim(String val){
		val = getNonNull(val);
		return val.trim();
	}

	/**
	 * 如果为null返回空字符串
	 * @param val
	 * @return
	 */
	public static String getNonNull(String val){
		return get(val,EMPTY_STRING);
	}

	/**
	 * 获得BigDecimal
	 * @param str
	 * @return
	 */
	public static BigDecimal getBigDecimal(String str){
		try{
			BigDecimal bd = new BigDecimal(str);
			return bd;
		}catch(Exception e){
			return BigDecimal.valueOf(-1.00);
		}
	}

	/**
	 * 获得BigDecimal
	 * @param str
	 * @return
	 */
	public static BigDecimal getBigDecimal(String str,double def){
		try{
			BigDecimal bd = new BigDecimal(str);
			return bd;
		}catch(Exception e){
			return BigDecimal.valueOf(def);
		}
	}

	/**
	 * yes/no转换成true/false
	 * @param aValue
	 * @return
	 */
	public static final String getBooleanFromYesNo(String aValue) {
		if (aValue.equalsIgnoreCase("yes")) {
			return "true";
		}

		return "false";
	}

	/**
	 * 替换字符串
	 * @param text 原始文本
	 * @param replaced 要替换内容
	 * @param replacement 替换内容
	 * @return
	 */
	public static String replace(String text, String replaced, String replacement) {
		StringBuffer ret = new StringBuffer();
		String temp = text;

		while (temp.indexOf(replaced) > -1) {
			ret.append(temp.substring(0, temp.indexOf(replaced)) + replacement);

			temp = temp.substring(temp.indexOf(replaced) + replaced.length());
		}

		ret.append(temp);

		return ret.toString();
	}

	/**
	 * 字符串替换 正反向
	 * @param sIni
	 * @param sFrom
	 * @param sTo
	 * @param caseSensitiveSearch
	 * @return
	 */
	public static String replaceString(String sIni, String sFrom, String sTo, boolean caseSensitiveSearch) {
		int i = 0;
		String s = new String(sIni);
		StringBuffer result = new StringBuffer();

		if (caseSensitiveSearch) {
			i = s.indexOf(sFrom);
		} else {
			i = s.toLowerCase().indexOf(sFrom.toLowerCase());
		}

		while (i != -1) {
			result.append(s.substring(0, i));
			result.append(sTo);

			s = s.substring(i + sFrom.length());

			if (caseSensitiveSearch) {
				i = s.indexOf(sFrom);
			} else {
				i = s.toLowerCase().indexOf(sFrom.toLowerCase());
			}
		}

		result.append(s);

		return result.toString();
	}

	/**
	 * 将字符串转换成Vector通过Token
	 * @param sIn
	 * @param sTokenizer
	 * @return
	 */
	public static List<String> tokenize(String sIn, String sTokenizer) {
		if(ValidateUtil.isNull(sIn))return new Vector<String>();
		Vector<String> vToken = new Vector<String>();
		int nOffset = 0;
		int nOffset1 = 0;

		nOffset1 = sIn.indexOf(sTokenizer, nOffset);

		while (nOffset1 > -1) {
			if (nOffset1 > nOffset) {
				vToken.add(sIn.substring(nOffset, nOffset1));
			} else {
				vToken.add(EMPTY_STRING);
			}

			nOffset = nOffset1 + sTokenizer.length();
			nOffset1 = sIn.indexOf(sTokenizer, nOffset);
		}

		if (nOffset < sIn.length()) {
			vToken.add(sIn.substring(nOffset, sIn.length()));
		} else {
			vToken.add(EMPTY_STRING);
		}

		return vToken;
	}
	/**
	 * 将字符串转换成字符数组通过token
	 * @param sIn
	 * @param sTokenizer
	 * @return
	 */
	public static String[] tokenizeToArray(String sIn, String sTokenizer) {
		if(ValidateUtil.isNull(sIn)){
			return new String[0];
		}
		List<String> vToken = tokenize(sIn, sTokenizer);
		String[] tokenArray = new String[vToken.size()];
		for (int i = 0; i < vToken.size(); i++) {
			tokenArray[i] = getTrim((String) vToken.get(i));
		}
		return tokenArray;
	}

	/**
	 * 删除不能成为文件名的字符
	 * @param fileStr
	 * @return
	 */
	public static String removeIllegalFileChars(String fileStr) {
		String replacedFileStr = fileStr;

		replacedFileStr = replace(replacedFileStr, " ", "_");
		replacedFileStr = replace(replacedFileStr, "&", EMPTY_STRING);
		replacedFileStr = replace(replacedFileStr, "%", EMPTY_STRING);
		replacedFileStr = replace(replacedFileStr, ",", EMPTY_STRING);
		replacedFileStr = replace(replacedFileStr, ";", EMPTY_STRING);
		replacedFileStr = replace(replacedFileStr, "/", "_");

		return replacedFileStr;
	}

	/**
	 * 获得字符串中的指点子字符串
	 * @param strIn
	 * @param start
	 * @param length
	 * @return
	 */
	public static String substring(String strIn, int start, int length){
		String strOut = null;

		if (strIn != null) {
			strOut = EMPTY_STRING;

			if (start < strIn.length() && length > 0) {
				if (start + length < strIn.length() ) {
					strOut = strIn.substring(start, start + length );
				} else {
					strOut = strIn.substring(start, strIn.length() );
				}
			}
		}

		return strOut;
	}
	/**
	 * 随机生成length位数字字符串
	 * @param length
	 * @return
	 */
	public static final String getRandomLengthDigit(int length){
		StringBuilder str=new StringBuilder();
		for(int i=0;i<length;i++){
			str.append(IntChars[(int)(Math.random()*10)]);
		}
		return str.toString();
	}
	/**
	 * 随即生成length位字符串
	 * @param length
	 * @return
	 */
	public static final String getRandomLengthString(int length){
		if(length < 1)
			return null;
		char ac[] = new char[length];
		for(int j = 0; j < ac.length; j++)
			ac[j] = chars[new Random().nextInt(71)];

		return new String(ac);
	}

	/**
	 * 随即生成i位中文
	 * @param i
	 * @return
	 */
	public static final String getRandomLengthChineseString(int length){
		StringBuilder sb = new StringBuilder();
		for (int i = length; i > 0; i--) {
			sb.append(getRandomChinese());
		}
		return sb.toString();
	}

	/**
	 * 随机产生中文,长度范围为start-end
	 * @param start
	 * @param end
	 * @return
	 */
	public static String getRandomLengthChiness(int start, int end) {
		StringBuilder sb = new StringBuilder();
		int length = new Random().nextInt(end + 1);
		if (length < start) {
			return getRandomLengthChiness(start, end);
		} else {
			for (int i = 0; i < length; i++) {
				sb.append(getRandomChinese());
			}
		}
		return sb.toString();
	}

	/**
	 * 随机获得中文
	 * @return
	 */
	public static String getRandomChinese() {
		String str = null;
		int highPos, lowPos;
		Random random = new Random();;
		highPos = (176 + Math.abs(random.nextInt(39)));
		lowPos = 161 + Math.abs(random.nextInt(93));
		byte[] b = new byte[2];
		b[0] = (new Integer(highPos)).byteValue();
		b[1] = (new Integer(lowPos)).byteValue();
		try {
			str = new String(b, "GB2312");
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
		return str;
	}

	/**
	 * 获得XML中的CDATA格式数据
	 * @param text
	 * @return
	 */
	public static String getCDATAData(String text){
		if(!ValidateUtil.isNotNull(text)) return EMPTY_STRING;
		return new StringBuffer().append("<![CDATA[").append(text).append("]]>").toString();
	}

	/**
	 * 编码
	 * @param str 要编码的字符串
	 * @param charset 编码类型
	 * @param ss 可选,原来的类型
	 * @return
	 */
	public static String encode(String str,String charset,String...ss ){
		if(ValidateUtil.isNull(str))return EMPTY_STRING;
		if(ValidateUtil.isNull(charset))return str;
		try {
			if(ss!=null && ss.length>0)return new String(str.getBytes(ss[0]),charset);
			else return new String(str.getBytes(),charset);
		} catch (UnsupportedEncodingException e) {
			return str;
		}
	}

	/**
	 * 如果为null返回默认值
	 * @param str
	 * @param def
	 * @return
	 */
	public static String get(Object obj, String def) {

		if(obj==null) return def;
		return ValidateUtil.isNull(obj.toString())?def:obj.toString();
	}

	/**
	 * 删除额外的空格,保证一个空格
	 * @param str
	 * @return
	 */
	public static String removeExtraBlanks(String str) {
		if(ValidateUtil.isNull(str))return EMPTY_STRING;
		char[] chars = str.toCharArray();
		int finalIndex = 0;
		int spaceCount = 0;
		for (int i = 0; i < chars.length; ++i) {
			if (chars[i] != ' ') {
				chars[finalIndex] = chars[i];
				++finalIndex;
				spaceCount = 0;
			} else if (chars[i] == ' ' && finalIndex == 0) {
			} else if (chars[i] == ' ' && spaceCount == 0) {
				chars[finalIndex] = chars[i];
				++finalIndex;
				++spaceCount;
			} else if (chars[i] == ' ' && spaceCount > 0) {
				++spaceCount;
			}
		}
		for (int i = finalIndex; i < chars.length; ++i) {
			chars[i] = ' ';
		}
		return String.valueOf(chars);
	}

	/**
	 * 删除所有空格
	 * @param str
	 * @return
	 */
	public static String removeBlanks(String str){
		if(str == null || str.equals(EMPTY_STRING))
			return str;
		char ac[] = str.toCharArray();
		char ac1[] = new char[ac.length];
		int i = 0;
		for(int j = 0; j < ac.length; j++)
			if(!Character.isSpaceChar(ac[j]))
				ac1[i++] = ac[j];

		return new String(ac1, 0, i);
	}
	/**
	 * 二行制转字符串
	 * @param b
	 * @return
	 */
	public static String byte2hex(byte[] b) {
		StringBuilder hs = new StringBuilder();
		String stmp = EMPTY_STRING;
		for (int n = 0; n < b.length; n++) {
			stmp = (Integer.toHexString(b[n] & 0XFF));
			if (stmp.length() == 1)
				hs.append("0").append(stmp);
			else
				hs.append(stmp);
		}
		return hs.toString().toUpperCase();
	}
	/**
	 * 获得List的字符串连接
	 * @param list
	 * @param split可选连接符
	 * @return
	 */
	public static String getStringFromList(List<String> list,String...split){
		if(list==null){
			return EMPTY_STRING;
		}
		StringBuilder sb=new StringBuilder();
		for(int i=0,j=list.size();i<j;i++){
			sb.append(list.get(i));
			if(split!=null && split.length>0)sb.append(split[0]);
		}
		return sb.toString();
	}

	/**
	 * 连接数组
	 * @param array
	 * @param split
	 * @return
	 */
	public static String getStringFromArray(String[] array,String...split) {

		if(array==null)return EMPTY_STRING;
		StringBuilder sb=new StringBuilder();
		for(int i = 0 ;i<array.length ; i++){
			if(i>0 && split!=null && ValidateUtil.isNotNull(split[0]))sb.append(split[0]);
			sb.append(array[i]);
		}
		return sb.toString();
	}

	/**
	 * 连接list
	 * @param connector
	 * @param list
	 * @return
	 */
	public static String concatList(String connector,List<?> list){
		return concatArray(connector,list.toArray(new Object[list.size()]));
	}

	/**
	 * 连接数组
	 * @param string
	 * @param values
	 * @return
	 */
	public static <T> String concatArray(String connector,T...objects) {

		if(objects==null || objects.length<1)return EMPTY_STRING;
		StringBuffer sb = new StringBuffer();
		for(int i=0;i<objects.length;i++){
			if(objects[i]==null || ValidateUtil.isNull(objects[i].toString()))continue;
			if(i>0)sb.append(connector);
			sb.append(objects[i].toString());
		}
		return sb.toString();
	}

	/**
	 * 自由组合列表
	 * @param list
	 * @return
	 */
	public static List<String> combined(List<List<String>> list){
		if(list.size()==1){
			return list.get(0);
		}else
		if(list.size()==2){
			return combined(list.get(0),list.get(1));
		}
		else{
			List<String> tempList = new ArrayList<String>();
			for(int i=list.size();i>0;i--){
				tempList = combined(list.get(i-1),tempList);
			}
			return tempList;
		}
	}

	/**
	 * 自由组合两列表
	 * @param list1
	 * @param list2
	 * @return
	 */
	public static List<String> combined(List<String> list1,List<String> list2){
		if(list2.isEmpty())return list1;
		List<String> results = new ArrayList<String>();
		for(String str1:list1){
			for(String str2:list2){
				results.add(str1+","+str2);
			}
		}
		return results;
	}

	/**
	 * 字符串替换
	 * @param text 原字符串
	 * @param terms Map类型 Key:要替换内容 value:替换后内容
	 * @return
	 */
	public static String replaceAll(String text , Map<String,String> terms){
		String textResult = text;
		for(String key :terms.keySet()){
			if(ValidateUtil.isNotNull(key) && ValidateUtil.isNotNull(terms.get(key)))
				textResult = Pattern.compile(key).matcher(textResult).replaceAll(terms.get(key));
		}
		return textResult;
	}
	/**
	 * 正则表达式替换
	 * @param str 源字符串
	 * @param pattern 要替换的模式
	 * @param replacement 替换成的内容
	 * @return
	 */
	public static String regexReplace(String str,String pattern,String replacement){
		if(ValidateUtil.isNull(str))return EMPTY_STRING;
		if(ValidateUtil.isNull(pattern))return str;
		return str.replaceAll(pattern, replacement);
	}

	/**
	 * 正则替换
	 * @param str 源字符串
	 * @param pattern 要替换的模式
	 * @param replace 替换成的内容
	 * @param connector 连接器
	 * @param def 默认值
	 * @return
	 */
	public static String regex(String str,String pattern,String replace,String connector,String def){
		if(str==null || pattern==null || connector==null)return null;
		Pattern p = Pattern.compile(pattern,Pattern.CASE_INSENSITIVE);
		Matcher matcher = p.matcher(str);
		StringBuffer sb = new StringBuffer();
		int i = 0 ;
		for(i=0;matcher.find();i++){
			if(i>0)sb.append(connector);
			matcher.appendReplacement(sb,replace);
		}
		if(i>0)matcher.appendTail(sb).append(def);else sb.append(str);
		return sb.toString();
	}

	/**
	 * 查找符合正则的表达式的字符串
	 * @param str
	 * @param pattern
	 * @param index
	 * @return
	 */
	public static String regexFind(String str,String pattern,int index){
		if(ValidateUtil.isNull(str))return EMPTY_STRING;
		Pattern p = Pattern.compile(pattern,Pattern.CASE_INSENSITIVE);
		Matcher matcher = p.matcher(str);
		for(int i=1; matcher.find();i++){
			if(i==index){
				return matcher.group();
			}
		}
		return EMPTY_STRING;
	}

	/**
	 * 将html文本去除成普通文本
	 * @param html
	 * @param style simple\basic\basicWithImages\relaxed\none
	 * @return
	 */
	public static String getText(String html,String style){
		if(ValidateUtil.isNull(html))return html;
		if(ValidateUtil.isEqualsIgnoreCase("simple", style)){
			return Jsoup.clean(html, Whitelist.simpleText());
		}else if(ValidateUtil.isEqualsIgnoreCase("basic", style)){
			return Jsoup.clean(html, Whitelist.basic());
		}else if(ValidateUtil.isEqualsIgnoreCase("basicWithImages", style)){
			return Jsoup.clean(html, Whitelist.basicWithImages());
		}else if(ValidateUtil.isEqualsIgnoreCase("relaxed", style)){
			return Jsoup.clean(html, Whitelist.relaxed());
		}else{
			return Jsoup.clean(html, Whitelist.none());
		}
	}

	/**
	 * 将普通文本中的链接提取成超链接
	 * @param text
	 * @return
	 */
	public static String getHrefText(String text){
		try{
			Pattern pattern = Pattern.compile(_HREF_URL_REGEX);
			Matcher matcher = pattern.matcher(text);
			StringBuffer result = new StringBuffer();
			String url ;
			while (matcher.find()) {
				url = matcher.group();
				StringBuffer replace = new StringBuffer();
				replace.append("<a href=\"").append(url);
				replace.append("\" target=\"_blank\">"+url+"</a>");
				matcher.appendReplacement(result, replace.toString());
			}
			matcher.appendTail(result);
			return get(result.toString(),text);
		}catch(Exception e){
			return text;
		}
	}

	/**
	 * 字符串解析Map
	 * @param text
	 * @param termSplit
	 * @param keySplit
	 * @return
	 */
	public static Map<String, String> getMap(String text,
											 String termSplit, String keySplit) {

		Map<String,String> values = null;
		if(ValidateUtil.isNotNull(text)){
			values = new LinkedHashMap<String,String>();
			for(String line : StringUtil.tokenize(text, termSplit)){
				if(ValidateUtil.isNull(line))continue;
				String[] t = line.split(keySplit);
				if(t.length==1){
					values.put(StringUtil.getTrim(t[0]), StringUtil.getTrim(t[0]));
					continue;
				}
				if(t.length!=2)continue;
				values.put(t[0], StringUtil.getTrim(t[1]));
			}
		}
		return values==null?new HashMap<String,String>():values;
	}

	/**
	 * 通过字节截断字符串长度
	 * @param str
	 * @param length
	 * @param more
	 * @return
	 */
	public static String substringByByte(String str, int length,String more){
		int reInt = 0;
		String reStr = EMPTY_STRING;
		if (ValidateUtil.isNull(str)) return EMPTY_STRING;
		char[] tempChar = str.toCharArray();
		for (int kk = 0; (kk < tempChar.length && length > reInt); kk++) {
			String s1 = String.valueOf(tempChar[kk]);
			byte[] b = s1.getBytes();
			reInt += b.length;
			reStr += tempChar[kk];
		}
		if (length == reInt || (length == reInt - 1))
			reStr += more;
		return reStr;
	}

	/**
	 * 获得指定小数位
	 * @param value
	 * @param fixed
	 * @return
	 */
	public static BigDecimal getFixedBigDecimal(String value, int fixed) {

		try{
			BigDecimal result = new BigDecimal(value);
			return result.setScale(fixed, BigDecimal.ROUND_HALF_UP);
		}catch(Exception e){

		}
		return BigDecimal.ZERO;
	}

	/**
	 * 获得正则匹配的字符串
	 * @param text
	 * @param pattern
	 * @param group
	 * @return
	 */
	public static String getMatcherGroup(String text,String pattern,int group){
		if(ValidateUtil.isNotNull(text) && ValidateUtil.isNotNull(pattern)){
			Pattern p = Pattern.compile(pattern,Pattern.CASE_INSENSITIVE);
			Matcher matcher = p.matcher(text);
			if(matcher.matches()){
				return matcher.group(group);
			}
		}
		return null;
	}
}