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package cloud.agileframework.common.util.pinyin;

import lombok.extern.slf4j.Slf4j;
import net.sourceforge.pinyin4j.PinyinHelper;
import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;
import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;
import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;
import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;

import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;

/**
 * 中文名字转拼音工具类
 */
@Slf4j
public class PinYinUtil {

    public static String converterToSpellKeyword(String chines) {
        return converterToFirstSpell(chines) + "," + converterToSpell(chines);
    }

    /**
     * 汉字转换位汉语拼音首字母，英文字符不变，特殊字符丢失 支持多音字，生成方式如（长沙市长:cssc,zssz,zssc,cssz）
     *
     * @param chines 汉字
     * @return 拼音
     */
    public static String converterToFirstSpell(String chines) {
        StringBuilder pinyinName = new StringBuilder();
        char[] nameChar = chines.toCharArray();
        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        for (char c : nameChar) {
            if (c > 128) {
                try {
                    // 取得当前汉字的所有全拼    
                    String[] strs = PinyinHelper.toHanyuPinyinStringArray(
                            c, defaultFormat);
                    if (strs != null) {
                        for (int j = 0; j < strs.length; j++) {
                            // 取首字母    
                            pinyinName.append(strs[j].charAt(0));
                            if (j != strs.length - 1) {
                                pinyinName.append(",");
                            }
                        }
                    }
                } catch (BadHanyuPinyinOutputFormatCombination e) {
                    e.printStackTrace();
                }
            } else {
                pinyinName.append(c);
            }
            pinyinName.append(" ");
        }
        return parseTheChineseByObject(discountTheChinese(pinyinName.toString()));
    }

    /**
     * 汉字转换位汉语全拼，英文字符不变，特殊字符丢失
     *
     * @param chines 汉字
     * @return 拼音
     */
    public static String converterToSpell(String chines) {
        StringBuilder pinyinName = new StringBuilder();
        char[] nameChar = chines.toCharArray();
        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        for (char c : nameChar) {
            if (c > 128) {
                try {
                    // 取得当前汉字的所有全拼    
                    String[] strs = PinyinHelper.toHanyuPinyinStringArray(
                            c, defaultFormat);
                    if (strs != null) {
                        for (int j = 0; j < strs.length; j++) {
                            pinyinName.append(strs[j]);
                            if (j != strs.length - 1) {
                                pinyinName.append(",");
                            }
                        }
                    }
                } catch (BadHanyuPinyinOutputFormatCombination e) {
                    e.printStackTrace();
                }
            } else {
                pinyinName.append(c);
            }
            pinyinName.append(" ");
        }
        return parseTheChineseByObject(discountTheChinese(pinyinName.toString()));
    }

    /**
     * 去除多音字重复数据
     */
    private static List> discountTheChinese(String theStr) {
        // 去除重复拼音后的拼音列表    
        List> mapList = new ArrayList<>();
        // 用于处理每个字的多音字，去掉重复    
        Map onlyOne = null;
        String[] firsts = theStr.split(" ");
        // 读出每个汉字的拼音    
        for (String str : firsts) {
            onlyOne = new Hashtable<>();
            String[] china = str.split(",");
            // 多音字处理    
            for (String s : china) {
                Integer count = onlyOne.get(s);
                if (count == null) {
                    onlyOne.put(s, 1);
                } else {
                    onlyOne.remove(s);
                    count++;
                    onlyOne.put(s, count);
                }
            }
            mapList.add(onlyOne);
        }
        return mapList;
    }

    /**
     * 解析并组合拼音，对象合并方案(推荐使用)
     */
    private static String parseTheChineseByObject(
            List> list) {
        Map first = null; // 用于统计每一次,集合组合数据    
        // 遍历每一组集合    
        for (Map stringIntegerMap : list) {
            // 每一组集合与上一次组合的Map    
            Map temp = new Hashtable<>();
            // 第一次循环，first为空    
            if (first != null) {
                // 取出上次组合与此次集合的字符，并保存    
                for (String s : first.keySet()) {
                    for (String s1 : stringIntegerMap.keySet()) {
                        String str = s + s1;
                        temp.put(str, 1);
                    }
                }
                // 清理上一次组合数据    
                if (temp.size() > 0) {
                    first.clear();
                }
            } else {
                for (String s : stringIntegerMap.keySet()) {
                    temp.put(s, 1);
                }
            }
            // 保存组合数据以便下次循环使用    
            if (temp.size() > 0) {
                first = temp;
            }
        }
        StringBuilder returnStr = new StringBuilder();
        if (first != null) {
            // 遍历取出组合字符串    
            for (String str : first.keySet()) {
                returnStr.append(str).append(",");
            }
        }
        if (returnStr.length() > 0) {
            returnStr = new StringBuilder(returnStr.substring(0, returnStr.length() - 1));
        }
        return returnStr.toString();
    }

    public static void main(String[] args) {
        System.out.println(converterToSpell("佟盟3_b"));
        System.out.println(converterToFirstSpell("佟盟3_b"));
        System.out.println(converterToSpellKeyword("佟盟3_b"));
    }
}