using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Common.Win
{
    using System;
    using System.Collections.Generic;
    using System.IO;
    using System.Net;
    using System.Text;
    using DevExpress.ExpressApp.Utils;

    public class MyTranslatorProvider : TranslatorProviderBase
    {
        private const int timeout = 15000;

        public string appId = "65C7264047E3D58C91A7655FCD8F5E6892306B1B";

        private const string serviceUrl = "http://api.microsofttranslator.com/V1/Http.svc/";

        private string[] languages;

        public override string Caption => "Microsoft MyTranslator";

        public override string Description => "Powered by <b>Microsoft® MyTranslator</b>";

        public MyTranslatorProvider()
            : base("<br>", 2000)
        {
            languages = null;
        }

        private string BingTranslatorInvoke(string methodName, IEnumerable<KeyValuePair<string, string>> parameters)
        {
            return BingTranslatorInvoke(methodName, parameters, null);
        }

        
        /// <summary>
        /// 
        /// </summary>
        /// <param name="methodName"></param>
        /// <param name="parameters"></param>
        /// <param name="postParameter"></param>
        /// <returns></returns>
        private string BingTranslatorInvoke(string methodName, IEnumerable<KeyValuePair<string, string>> parameters, string postParameter)
        {
            string text2 = null;
            if (methodName == "Detect")
            {
                text2 = "en";
            }
            else if (methodName == "Translate")
            {
                text2 = BaiduTranslate.Baidu_Translate(postParameter).trans_result[0].dst;
            }
            else if (methodName == "GetLanguages")
            { }
            return text2;
        }

        private string BingTranslatorInvoke2(string methodName, IEnumerable<KeyValuePair<string, string>> parameters, string postParameter)
        {
            UTF8Encoding encoding = new UTF8Encoding();
            string text = "";
            foreach (KeyValuePair<string, string> parameter in parameters)
            {
                text += (string.IsNullOrEmpty(text) ? "?" : "&");
                text = text + parameter.Key + "=" + parameter.Value;
            }
            Uri requestUri = new Uri("http://api.microsofttranslator.com/V1/Http.svc/" + methodName + text);
            HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(requestUri);
            httpWebRequest.Timeout = 15000;
            if (!string.IsNullOrEmpty(postParameter))
            {
                httpWebRequest.Method = "POST";
                httpWebRequest.ContentType = "text/plain";
                Stream stream = httpWebRequest.GetRequestStream();
                byte[] bytes = Encoding.UTF8.GetBytes(postParameter);
                stream.Write(bytes, 0, bytes.Length);
            }
            HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
            string text2 = null;
            StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream(), encoding);
            text2 = streamReader.ReadToEnd();
            return text2;
        }

        public override string[] GetLanguages()
        {
            if (languages == null)
            {
                languages =  "zh-CHS,en".Split(',');
                //string text = BingTranslatorInvoke("GetLanguages", new KeyValuePair<string, string>[1]
                //{
                //new KeyValuePair<string, string>("appId", appId)
                //});
                //languages = text.Split(new string[1] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
            }
            return languages;
        }

        public string Detect(string text)
        {
            return BingTranslatorInvoke("Detect", new KeyValuePair<string, string>[1]
            {
            new KeyValuePair<string, string>("appId", appId)
            }, text);
        }

        public override string Translate(string text, string sourceLanguageCode, string destinationLanguageCode)
        {
            if (string.IsNullOrEmpty(sourceLanguageCode))
            {
                sourceLanguageCode = Detect(text);
            }
            return BingTranslatorInvoke("Translate", new KeyValuePair<string, string>[3]
            {
            new KeyValuePair<string, string>("appId", appId),
            new KeyValuePair<string, string>("from", sourceLanguageCode),
            new KeyValuePair<string, string>("to", destinationLanguageCode)
            }, text);
        }

        public override IEnumerable<string> CalculateSentences(string text)
        {
            string[] leftSeparators = new string[5] { "\"", "^'", " '", "('", "{" };
            string[] rightSeparators = new string[5] { "\"", "'", "'", "'", "}" };
            int num = 0;
            int iSeparator = 0;
            int leftSeparatorSize = 0;
            while (num < text.Length)
            {
                int num2 = -1;
                for (int i = 0; i < leftSeparators.Length; i++)
                {
                    if (leftSeparators[i][0] == '^')
                    {
                        int num3 = text.IndexOf(leftSeparators[i].Substring(1), num, StringComparison.Ordinal);
                        if (num3 == 0)
                        {
                            iSeparator = i;
                            num2 = num3;
                            leftSeparatorSize = leftSeparators[i].Length - 1;
                        }
                    }
                    else
                    {
                        int num3 = text.IndexOf(leftSeparators[i], num, StringComparison.Ordinal);
                        if (num3 >= 0 && (num2 < 0 || num3 < num2))
                        {
                            iSeparator = i;
                            num2 = num3;
                            leftSeparatorSize = leftSeparators[i].Length;
                        }
                    }
                }
                if (num2 >= 0)
                {
                    int rightSeparatorIndex = text.IndexOf(rightSeparators[iSeparator], num2 + leftSeparatorSize, StringComparison.Ordinal);
                    if (rightSeparatorIndex >= 0)
                    {
                        string text2 = text.Substring(num, num2 - num).Trim();
                        if (text2.Length > 0)
                        {
                            yield return text2;
                        }
                        num = rightSeparatorIndex + rightSeparators[iSeparator].Length;
                        continue;
                    }
                }
                yield return text.Substring(num, text.Length - num).Trim();
                num = text.Length;
            }
        }
    }
}

using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Web;

namespace Common.Win
{
    public class BaiduTranslate
    {
        public static Rootobject Baidu_Translate(string content)
        { return  Baidu_Translate("en", "zh", content); }
        public static Rootobject Baidu_Translate(string from, string to, string content)
        {
            // 原文
            string q = content;
            // 源语言
            // 改成您的APP ID
            string appId = "";//to do
            Random rd = new Random();
            string salt = rd.Next(100000).ToString();
            // 改成您的密钥
            string secretKey = "";//to do
            string sign = EncryptString(appId + q + salt + secretKey);
            string url = "http://api.fanyi.baidu.com/api/trans/vip/translate?";//translate
            url += "q=" + HttpUtility.UrlEncode(q);
            url += "&from=" + from;
            url += "&to=" + to;
            url += "&appid=" + appId;
            url += "&salt=" + salt;
            url += "&sign=" + sign;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Method = "GET";
            request.ContentType = "text/html;charset=UTF-8";
            request.UserAgent = null;
            request.Timeout = 6000;

            using (WebResponse response =  request.GetResponse())
            {
                using (Stream myResponseStream = response.GetResponseStream())
                {
                    using (StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8")))
                    {
                        string retString = myStreamReader.ReadToEnd();
                        Debug.WriteLine(retString);
                        var result = JsonConvert.DeserializeObject<Rootobject>(retString);
                        return result;
                    }
                }
            }
        }

        // 计算MD5值
        public static string EncryptString(string str)
        {
            MD5 md5 = MD5.Create();
            // 将字符串转换成字节数组
            byte[] byteOld = Encoding.UTF8.GetBytes(str);
            // 调用加密方法
            byte[] byteNew = md5.ComputeHash(byteOld);
            // 将加密结果转换为字符串
            StringBuilder sb = new StringBuilder();
            foreach (byte b in byteNew)
            {
                // 将字节转换成16进制表示的字符串，
                sb.Append(b.ToString("x2"));
            }
            // 返回加密的字符串
            return sb.ToString();
        }
    }
    public class Rootobject
    {
        public string from { get; set; }
        public string to { get; set; }
        public string domain { get; set; }
        public int type { get; set; }
        public int status { get; set; }

        public int error { get; set; }
        public string msg { get; set; }

        public Trans_Result[] trans_result { get; set; }
    }

    public class Trans_Result
    {
        public string src { get; set; }
        public string dst { get; set; }

        public int prefixWrap { get; set; }

        public object[] relation { get; set; }
        public object[][] result { get; set; }
    }
}