using Microsoft.International.Converters.PinYinConverter;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;

namespace SOH.Common
{
   public static  class ChnToPinYin
    {
        public static string ToPinyin(string hanzi)
        {
            char[] ch = hanzi.ToArray();
            string pinyinStr = "";
            foreach (char c in ch)
            {
                pinyinStr += ToPinyin(c);
            }
            return pinyinStr.ToLower();
        }
        public static string ToPinyin(char c)
        {
            if (ChineseChar.IsValidChar(c))
            {
                ChineseChar chineseChar = new ChineseChar(c);
                ReadOnlyCollection<string> pinyin = chineseChar.Pinyins;
               return (pinyin[0].Substring(0, pinyin[0].Length - 1));
            }
            else
            {
                return c.ToString();
            }
        }

        public static string HeadFirst(string hanzi)
        {
            char[] ch = hanzi.ToArray();
            string pinyinStr = "";
            foreach (char c in ch)
            {
                pinyinStr += ToPinyin(c).Substring(0,1);
            }
            return pinyinStr.ToLower();
        }
    }
}