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package com.dahuatech.hutool.core.util;

import com.dahuatech.hutool.core.exceptions.UtilException;
import com.dahuatech.hutool.core.text.StrBuilder;

/**
 * 拼音工具类

 * 注意：部分拼音并不准确，例如：怡
 *
 * @author looly
 * @since 4.0.7
 * @deprecated 此工具不再建议使用，因为某些汉字拼音不准确且无法处理多音字，建议使用Jpinyin或Pinyin4j
 */
@Deprecated
public class PinyinUtil {

  /** 汉字对应ascii范围 */
  private static int[] pinyinValue =
      new int[] {
        -20319, -20317, -20304, -20295, -20292, -20283, -20265, -20257, -20242, -20230, -20051,
        -20036, -20032, -20026, -20002, -19990, -19986, -19982, -19976, -19805, -19784, -19775,
        -19774, -19763, -19756, -19751, -19746, -19741, -19739, -19728, -19725, -19715, -19540,
        -19531, -19525, -19515, -19500, -19484, -19479, -19467, -19289, -19288, -19281, -19275,
        -19270, -19263, -19261, -19249, -19243, -19242, -19238, -19235, -19227, -19224, -19218,
        -19212, -19038, -19023, -19018, -19006, -19003, -18996, -18977, -18961, -18952, -18783,
        -18774, -18773, -18763, -18756, -18741, -18735, -18731, -18722, -18710, -18697, -18696,
        -18526, -18518, -18501, -18490, -18478, -18463, -18448, -18447, -18446, -18239, -18237,
        -18231, -18220, -18211, -18201, -18184, -18183, -18181, -18012, -17997, -17988, -17970,
        -17964, -17961, -17950, -17947, -17931, -17928, -17922, -17759, -17752, -17733, -17730,
        -17721, -17703, -17701, -17697, -17692, -17683, -17676, -17496, -17487, -17482, -17468,
        -17454, -17433, -17427, -17417, -17202, -17185, -16983, -16970, -16942, -16915, -16733,
        -16708, -16706, -16689, -16664, -16657, -16647, -16474, -16470, -16465, -16459, -16452,
        -16448, -16433, -16429, -16427, -16423, -16419, -16412, -16407, -16403, -16401, -16393,
        -16220, -16216, -16212, -16205, -16202, -16187, -16180, -16171, -16169, -16158, -16155,
        -15959, -15958, -15944, -15933, -15920, -15915, -15903, -15889, -15878, -15707, -15701,
        -15681, -15667, -15661, -15659, -15652, -15640, -15631, -15625, -15454, -15448, -15436,
        -15435, -15419, -15416, -15408, -15394, -15385, -15377, -15375, -15369, -15363, -15362,
        -15183, -15180, -15165, -15158, -15153, -15150, -15149, -15144, -15143, -15141, -15140,
        -15139, -15128, -15121, -15119, -15117, -15110, -15109, -14941, -14937, -14933, -14930,
        -14929, -14928, -14926, -14922, -14921, -14914, -14908, -14902, -14894, -14889, -14882,
        -14873, -14871, -14857, -14678, -14674, -14670, -14668, -14663, -14654, -14645, -14630,
        -14594, -14429, -14407, -14399, -14384, -14379, -14368, -14355, -14353, -14345, -14170,
        -14159, -14151, -14149, -14145, -14140, -14137, -14135, -14125, -14123, -14122, -14112,
        -14109, -14099, -14097, -14094, -14092, -14090, -14087, -14083, -13917, -13914, -13910,
        -13907, -13906, -13905, -13896, -13894, -13878, -13870, -13859, -13847, -13831, -13658,
        -13611, -13601, -13406, -13404, -13400, -13398, -13395, -13391, -13387, -13383, -13367,
        -13359, -13356, -13343, -13340, -13329, -13326, -13318, -13147, -13138, -13120, -13107,
        -13096, -13095, -13091, -13076, -13068, -13063, -13060, -12888, -12875, -12871, -12860,
        -12858, -12852, -12849, -12838, -12831, -12829, -12812, -12802, -12607, -12597, -12594,
        -12585, -12556, -12359, -12346, -12320, -12300, -12120, -12099, -12089, -12074, -12067,
        -12058, -12039, -11867, -11861, -11847, -11831, -11798, -11781, -11604, -11589, -11536,
        -11358, -11340, -11339, -11324, -11303, -11097, -11077, -11067, -11055, -11052, -11045,
        -11041, -11038, -11024, -11020, -11019, -11018, -11014, -10838, -10832, -10815, -10800,
        -10790, -10780, -10764, -10587, -10544, -10533, -10519, -10331, -10329, -10328, -10322,
        -10315, -10309, -10307, -10296, -10281, -10274, -10270, -10262, -10260, -10256, -10254
      };

  private static String[] pinyinStr =
      new String[] {
        "a", "ai", "an", "ang", "ao", "ba", "bai", "ban", "bang", "bao", "bei", "ben", "beng", "bi",
        "bian", "biao", "bie", "bin", "bing", "bo", "bu", "ca", "cai", "can", "cang", "cao", "ce",
        "ceng", "cha", "chai", "chan", "chang", "chao", "che", "chen", "cheng", "chi", "chong",
        "chou", "chu", "chuai", "chuan", "chuang", "chui", "chun", "chuo", "ci", "cong", "cou",
        "cu", "cuan", "cui", "cun", "cuo", "da", "dai", "dan", "dang", "dao", "de", "deng", "di",
        "dian", "diao", "die", "ding", "diu", "dong", "dou", "du", "duan", "dui", "dun", "duo", "e",
        "en", "er", "fa", "fan", "fang", "fei", "fen", "feng", "fo", "fou", "fu", "ga", "gai",
        "gan", "gang", "gao", "ge", "gei", "gen", "geng", "gong", "gou", "gu", "gua", "guai",
        "guan", "guang", "gui", "gun", "guo", "ha", "hai", "han", "hang", "hao", "he", "hei", "hen",
        "heng", "hong", "hou", "hu", "hua", "huai", "huan", "huang", "hui", "hun", "huo", "ji",
        "jia", "jian", "jiang", "jiao", "jie", "jin", "jing", "jiong", "jiu", "ju", "juan", "jue",
        "jun", "ka", "kai", "kan", "kang", "kao", "ke", "ken", "keng", "kong", "kou", "ku", "kua",
        "kuai", "kuan", "kuang", "kui", "kun", "kuo", "la", "lai", "lan", "lang", "lao", "le",
        "lei", "leng", "li", "lia", "lian", "liang", "liao", "lie", "lin", "ling", "liu", "long",
        "lou", "lu", "lv", "luan", "lue", "lun", "luo", "ma", "mai", "man", "mang", "mao", "me",
        "mei", "men", "meng", "mi", "mian", "miao", "mie", "min", "ming", "miu", "mo", "mou", "mu",
        "na", "nai", "nan", "nang", "nao", "ne", "nei", "nen", "neng", "ni", "nian", "niang",
        "niao", "nie", "nin", "ning", "niu", "nong", "nu", "nv", "nuan", "nue", "nuo", "o", "ou",
        "pa", "pai", "pan", "pang", "pao", "pei", "pen", "peng", "pi", "pian", "piao", "pie", "pin",
        "ping", "po", "pu", "qi", "qia", "qian", "qiang", "qiao", "qie", "qin", "qing", "qiong",
        "qiu", "qu", "quan", "que", "qun", "ran", "rang", "rao", "re", "ren", "reng", "ri", "rong",
        "rou", "ru", "ruan", "rui", "run", "ruo", "sa", "sai", "san", "sang", "sao", "se", "sen",
        "seng", "sha", "shai", "shan", "shang", "shao", "she", "shen", "sheng", "shi", "shou",
        "shu", "shua", "shuai", "shuan", "shuang", "shui", "shun", "shuo", "si", "song", "sou",
        "su", "suan", "sui", "sun", "suo", "ta", "tai", "tan", "tang", "tao", "te", "teng", "ti",
        "tian", "tiao", "tie", "ting", "tong", "tou", "tu", "tuan", "tui", "tun", "tuo", "wa",
        "wai", "wan", "wang", "wei", "wen", "weng", "wo", "wu", "xi", "xia", "xian", "xiang",
        "xiao", "xie", "xin", "xing", "xiong", "xiu", "xu", "xuan", "xue", "xun", "ya", "yan",
        "yang", "yao", "ye", "yi", "yin", "ying", "yo", "yong", "you", "yu", "yuan", "yue", "yun",
        "za", "zai", "zan", "zang", "zao", "ze", "zei", "zen", "zeng", "zha", "zhai", "zhan",
        "zhang", "zhao", "zhe", "zhen", "zheng", "zhi", "zhong", "zhou", "zhu", "zhua", "zhuai",
        "zhuan", "zhuang", "zhui", "zhun", "zhuo", "zi", "zong", "zou", "zu", "zuan", "zui", "zun",
        "zuo"
      };

  /**
   * 获取所给中文的每个汉字首字母组成首字母字符串
   *
   * @param chinese 汉字字符串
   * @return 首字母字符串
   */
  public static String getAllFirstLetter(String chinese) {
    if (StrUtil.isBlank(chinese)) {
      return StrUtil.EMPTY;
    }

    int len = chinese.length();
    final StrBuilder strBuilder = new StrBuilder(len);
    for (int i = 0; i < len; i++) {
      strBuilder.append(getFirstLetter(chinese.charAt(i)));
    }

    return strBuilder.toString();
  }

  /**
   * 获取拼音首字母

   * 传入汉字，返回拼音首字母

   * 如果传入为字母，返回其小写形式

   * 感谢【帝都】宁静 提供方法
   *
   * @param ch 汉字
   * @return 首字母，小写
   */
  public static char getFirstLetter(char ch) {
    if (ch >= 'a' && ch <= 'z') {
      return ch;
    }
    if (ch >= 'A' && ch <= 'Z') {
      return Character.toLowerCase(ch);
    }
    final byte[] bys = String.valueOf(ch).getBytes(CharsetUtil.CHARSET_GBK);
    if (bys.length == 1) {
      return ch;
    }
    int count = (bys[0] + 256) * 256 + bys[1] + 256;
    if (count < 45217) {
      return ch;
    } else if (count < 45253) {
      return 'a';
    } else if (count < 45761) {
      return 'b';
    } else if (count < 46318) {
      return 'c';
    } else if (count < 46826) {
      return 'd';
    } else if (count < 47010) {
      return 'e';
    } else if (count < 47297) {
      return 'f';
    } else if (count < 47614) {
      return 'g';
    } else if (count < 48119) {
      return 'h';
    } else if (count < 49062) {
      return 'j';
    } else if (count < 49324) {
      return 'k';
    } else if (count < 49896) {
      return 'l';
    } else if (count < 50371) {
      return 'm';
    } else if (count < 50614) {
      return 'n';
    } else if (count < 50622) {
      return 'o';
    } else if (count < 50906) {
      return 'p';
    } else if (count < 51387) {
      return 'q';
    } else if (count < 51446) {
      return 'r';
    } else if (count < 52218) {
      return 's';
    } else if (count < 52698) {
      return 't';
    } else if (count < 52980) {
      return 'w';
    } else if (count < 53689) {
      return 'x';
    } else if (count < 54481) {
      return 'y';
    } else if (count < 55290) {
      return 'z';
    }
    return ch;
  }

  /**
   * 汉字转拼音  example : 张三 zhangsan
   *
   * @param chinese 汉字
   * @return 对应的拼音
   * @since 4.0.11
   */
  public static String getPinYin(String chinese) {
    final StrBuilder result = StrUtil.strBuilder();
    String strTemp = null;
    int len = chinese.length();
    for (int j = 0; j < len; j++) {
      strTemp = chinese.substring(j, j + 1);
      int ascii = getChsAscii(strTemp);
      if (ascii > 0) {
        // 非汉字
        result.append((char) ascii);
      } else {
        for (int i = pinyinValue.length - 1; i >= 0; i--) {
          if (pinyinValue[i] <= ascii) {
            result.append(pinyinStr[i]);
            break;
          }
        }
      }
    }
    return result.toString();
  }

  // ------------------------------------------------------------------------------------------------------- Private method start
  /**
   * 获取汉字对应的ascii码
   *
   * @param chs 汉字
   * @return ascii码
   */
  private static int getChsAscii(String chs) {
    int asc = 0;
    byte[] bytes = chs.getBytes(CharsetUtil.CHARSET_GBK);
    switch (bytes.length) {
      case 1:
        // 英文字符
        asc = bytes[0];
        break;
      case 2:
        // 中文字符
        int hightByte = 256 + bytes[0];
        int lowByte = 256 + bytes[1];
        asc = (256 * hightByte + lowByte) - 256 * 256;
        break;
      default:
        throw new UtilException("Illegal resource string");
    }
    return asc;
  }
  // ------------------------------------------------------------------------------------------------------- Private method end
}