using APT.Infrastructure.Core;
using System;
using System.Text;

namespace APT.Infrastructure.EF
{
    public static class AcronymHelper
    {
       // private static Encoding gb2312 = Encoding.GetEncoding("GB2312");

        /// <summary>
        /// 汉字转全拼
        /// </summary>
        /// <param name="strChinese"></param>
        /// <returns></returns>
        public static string ConvertToAllSpell(string strChinese)
        {
            try
            {
                if (strChinese.Length != 0)
                {
                    StringBuilder fullSpell = new StringBuilder();
                    for (int i = 0; i < strChinese.Length; i++)
                    {
                        var chr = strChinese[i];
                        fullSpell.Append(GetSpell(chr));
                    }
                    return fullSpell.ToString();
                }
            }
            catch (Exception e)
            {
                LoggerManager.GetLogger().Info("全拼转化出错！" + e.Message); 
            }
            return string.Empty;
        }

        /// <summary>
        /// 汉字转首字母
        /// </summary>
        /// <param name="strChinese"></param>
        /// <returns></returns>
        public static string ConvertToFirstSpell(string strChinese)
        {
            try
            {
                if (strChinese.Length != 0)
                {
                    StringBuilder fullSpell = new StringBuilder();
                    for (int i = 0; i < strChinese.Length; i++)
                    {
                        var chr = strChinese[i];
                        fullSpell.Append(GetSpell(chr)[0]);
                    }
                    return fullSpell.ToString();
                }
            }
            catch (Exception e)
            {
                LoggerManager.GetLogger().Info("首字母转化出错！" + e.Message); 
            }
            return string.Empty;
        }

        private static string GetSpell(char chr)
        {
            //var coverchr = NPinyin.Pinyin.GetPinyin(chr);
            //bool isChineses = ChineseChar.IsValidChar(coverchr[0]);
            //if (isChineses)
            //{
            //    ChineseChar chineseChar = new ChineseChar(coverchr[0]);
            //    foreach (string value in chineseChar.Pinyins)
            //    {
            //        if (!string.IsNullOrEmpty(value))
            //        {
            //            return value.Remove(value.Length - 1, 1);
            //        }
            //    }
            //}
            //return coverchr;
            return "";
        }

        /// <summary>
        /// 数字转换成字母(1-26)
        /// </summary>
        /// <param name="number"></param>
        /// <returns></returns>
        public static string NumToChar(int number)
        {
            number = number + 64;
            if (65 <= number && 90 >= number)
            {
                System.Text.ASCIIEncoding asciiEncoding = new System.Text.ASCIIEncoding();
                byte[] btNumber = new byte[] { (byte)number };
                return asciiEncoding.GetString(btNumber).ToLower();
            }
            return "数字不在转换范围内";
        }

        /// <summary>
        /// 字母转换成数字(1-26)
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string CharToNum(char chr)
        {
            byte[] array = new byte[1];
            array = System.Text.Encoding.ASCII.GetBytes(chr.ToString().ToUpper());
            int asciicode = (short)(array[0]) - 64;
            return Convert.ToString(asciicode);
        }
    }
}