package com.hdl.photovoltaic.utils;

import android.text.TextUtils;

import com.zxing.utils.Strings;

import java.util.Iterator;
import java.util.regex.Pattern;

public class StringUtils {
    public static final String EMPTY = "";
    public static final String BLANK = " ";
    public static final String EQUAL = "=";
    public static final String AND = "&";
    public static final String QMARK = "?";
    public static final String TRUE = "true";
    public static final String FALSE = "false";
    public static final String CANCEL = "cancel";
    public static final String NULL_STR = "null";
    public static final String SUCCESS = "success";
    public static final String FAIL = "fail";
    public static final String ZERO = "0";
    public static final String SEMICOLON = ";";
    public static final String SPLITE = "/";
    public static final String AT = "@";
    public static final String COMMA = ",";
    public static final String FILE_PRE = "file://";
    public static final String HTTP_PRE = "http";
    public static final String COLON = ":";
    public static final String WRAP = "";
    public static final String STAR = "*";
    public static final String MORE = "...";

    /**
     * 去除字符串中的空格
     */
    public static String trimAll(CharSequence s) {
        if (s == null || s.length() == 0) return Strings.EMPTY;
        StringBuilder sb = new StringBuilder(s.length());
        for (int i = 0, L = s.length(); i < L; i++) {
            char c = s.charAt(i);
            if (c != ' ') sb.append(c);
        }
        return sb.toString();
    }

    /**
     * 判断是否为手机号码
     */
    public static boolean isPhoneNum(String phoneNum) {
        if (phoneNum == null || phoneNum.length() != 11) return false;
        if (!TextUtils.isDigitsOnly(phoneNum)) return false;
        Pattern p = Pattern.compile("^((13[0-9])|(14[0-9])|(15[^4,\\D])|(17[0-9])|(18[0-9]))\\d{8}$");
        return p.matcher(phoneNum).find();
    }

    /**
     * 判断是否为座机号码
     */
    public static boolean isTelNum(String num) {
        if (TextUtils.isEmpty(num)) return false;
        Pattern p = Pattern.compile("(\\(\\d{3,4}\\)|\\d{3,4}-|\\s)?\\d{8}");
        return p.matcher(num).find();
    }

    /**
     * 判断字符串中是否有中文，有中文返回true
     */
    public static boolean isChinese(String string) {
        boolean flag = false;
        for (int i = 0, L = string.length(); i < L; i++) {
            char c = string.charAt(i);
            if ((c >= 0x4e00) && (c <= 0x9FA5)) {
                flag = true;
            } else {
                return false;
            }
        }
        return flag;
    }

    /**
     * 判断字符长度是否在范围里面。 当start end 为 -1 时，表示字符长度不考虑上线或下线
     *
     * @param str
     * @param start
     * @param end
     * @return
     */
    public static boolean isLengthInRange(String str, int start, int end) {
        boolean isInRange = true;
        int length = str.length();
        if (start != -1 && length < start) {
            isInRange = false;
        }
        if (end != -1 && end < length) {
            isInRange = false;
        }
        return isInRange;
    }

    /**
     * 字符串转换为long型
     */
    public static long toLong(String text, long defaultVal) {
        if (TextUtils.isDigitsOnly(text)) {
            try {
                return Long.parseLong(text);
            } catch (NumberFormatException e) {
            }
        }
        return defaultVal;
    }

    /**
     * 字符串转换为int
     */
    public static int toInt(String text, int defaultVal) {
        if (TextUtils.isDigitsOnly(text)) {
            try {
                return Integer.parseInt(text);
            } catch (NumberFormatException e) {
            }
        }
        return defaultVal;
    }


    public static String join(Iterable<?> iterable, String separator) {

        // handle null, zero and one elements before building a buffer
        if (iterable == null) {
            return null;
        }
        Iterator<?> iterator = iterable.iterator();
        if (!iterator.hasNext()) {
            return EMPTY;
        }
        Object first = iterator.next();
        if (!iterator.hasNext()) {
            return toString(first);
        }

        // two or more elements
        StringBuffer buf = new StringBuffer(256); // Java default is 16, probably too small
        if (first != null) {
            buf.append(first);
        }

        while (iterator.hasNext()) {
            if (separator != null) {
                buf.append(separator);
            }
            Object obj = iterator.next();
            if (obj != null) {
                buf.append(obj);
            }
        }
        return buf.toString();
    }

    public static String toString(Object obj) {
        return obj == null ? "" : obj.toString();
    }

    /**
     * 判断是否为字符串是否为空
     */
    public static boolean toBoolean(String property, boolean defaultVal) {
        return property == null ? defaultVal : Boolean.valueOf(property);
    }

    public static String format(String str, Object... obj) {
        try {
            return String.format(str, obj);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return str;
    }
}