using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Web;
using System.Web.Services;
using Newtonsoft.Json;

namespace TradeManageNew.chatgpt
{
    /// <summary>
    /// ChatGptService 的摘要说明
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消注释以下行。 
     [System.Web.Script.Services.ScriptService]
    public class ChatGptService : System.Web.Services.WebService
    {

        [WebMethod]
        public string HelloWorld()
        {
            return "Hello World";
        }
        #region 多条件普通查询
        [WebMethod(EnableSession = true)]
        public string GetGptMess(string prompt)
        {

            try
            {
                string js = "{\"prompt\":\"" + prompt + "\",\"max_tokens\":1028, \"temperature\": 1,\"model\":\"text-davinci-003\"}";
                byte[] data = System.Text.Encoding.UTF8.GetBytes(js);
                string mess = "";
                List<string> head = new List<string>();
                head.Add("Authorization:Bearer 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");
                string content = HttpRequest("https://api.openai.com/v1/completions", "Post", "application/json", head, null, data, out mess);
                if (mess != "")
                    return mess;
                GptRoot model = JsonConvert.DeserializeObject<GptRoot>(content);
                string remess = "";
                if (model != null && model.choices != null)
                {
                    foreach (var md in model.choices)
                    {
                        remess += md.text;//.Replace("\n", "<br/>");
                    }

                }

                return remess;
            }
            catch (Exception ex)
            {

                return ex.Message;
            }
        }
    
        #endregion
        public static string HttpRequest(string url, string Method, string ContentType, List<string> ListHeader, Version ver, byte[] bytes, out string ErrorMessage)
        {
            try
            {
                ErrorMessage = "";
                //System.Net.ServicePointManager.DefaultConnectionLimit =200;
                //设置支持的ssl协议版本，这里我们都勾选上常用的几个
                ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3  | SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
                if (string.IsNullOrEmpty(ContentType) == true) ContentType = "application/x-www-form-urlencoded";
                HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url);

                myRequest.Method = Method;  //GET,POST
                myRequest.ContentType = ContentType;
                myRequest.KeepAlive = true;

                //myRequest.Accept = "text/html";
                //myRequest.UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; qihu theworld)";
                myRequest.Headers.Add("Accept-Language: zh-CN");
                myRequest.Headers["Pragma"] = "no-cache"; //禁用缓存
                myRequest.Headers["Cache-Control"] = "no-cache"; //禁用缓存  
                //myRequest.Timeout = 3 * 60 * 1000;
                myRequest.Timeout = 300000;
                myRequest.ReadWriteTimeout = 3 * 60 * 1000;
                if (ver != null)
                    myRequest.ProtocolVersion = ver;
                if (ListHeader != null)
                {
                    foreach (var item in ListHeader)
                    {
                        myRequest.Headers.Add(item);
                    }
                }
                if (Method.ToUpper() == "POST" && (bytes == null || bytes.Length == 0))
                {
                    bytes = new byte[1];
                }
                if (bytes != null && bytes.Length > 0)
                {
                    //myRequest.GetRequestStream().Write(bytes, 0, bytes.Length);
                    Stream stream = myRequest.GetRequestStream();
                    stream.Write(bytes, 0, bytes.Length);
                    stream.Close();

                }

                //获得接口返回值
                HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
                Stream myResponseStream = myResponse.GetResponseStream();
                StreamReader reader = new StreamReader(myResponseStream, Encoding.UTF8);
                string content = reader.ReadToEnd();
                reader.Close();

                myResponseStream.Close();
                myRequest.Abort();
                myResponse.Close();
                reader = null;
                myResponseStream = null;
                myRequest = null;
                myResponse = null;
                return content;
            }
            catch (WebException e)
            {
                if (e.Response == null)
                {
                    ErrorMessage = e.Message;
                }
                else
                {
                    Stream myResponseStream = e.Response.GetResponseStream();
                    StreamReader reader = new StreamReader(myResponseStream, Encoding.UTF8);
                    ErrorMessage = reader.ReadToEnd();
                    if (ErrorMessage == "") ErrorMessage = e.Message;
                }
            }
            return "";
        }
     

    }
    //如果好用，请收藏地址，帮忙分享。
    public class ChoicesItem
    {
        /// <summary>
        /// 
        /// </summary>
        public string text { get; set; }
        /// <summary>
        /// 
        /// </summary>
        public int index { get; set; }
        /// <summary>
        /// 
        /// </summary>
        public string logprobs { get; set; }
        /// <summary>
        /// 
        /// </summary>
        public string finish_reason { get; set; }
    }

    public class Usage
    {
        /// <summary>
        /// 
        /// </summary>
        public int prompt_tokens { get; set; }
        /// <summary>
        /// 
        /// </summary>
        public int completion_tokens { get; set; }
        /// <summary>
        /// 
        /// </summary>
        public int total_tokens { get; set; }
    }

    public class GptRoot
    {
        /// <summary>
        /// 
        /// </summary>
        public string id { get; set; }


        /// <summary>
        /// 
        /// </summary>
        public int created { get; set; }
        /// <summary>
        /// 
        /// </summary>
        public string model { get; set; }
        /// <summary>
        /// 
        /// </summary>
        public List<ChoicesItem> choices { get; set; }
        /// <summary>
        /// 
        /// </summary>
        public Usage usage { get; set; }
    }

}