using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http.Headers;
using System.Net.Http;
using System.Net;
using System.Text;
using System.Web;

namespace TradeManageNew
{
    public static class UPSTokenHelp
    {
        const string client_id = "NeG6fE37MEZAjzzWebCyd1gM78jUa5kt741VJLmiiF0mKx5D";
        const string client_secret = "f7jmbk077R94iTzW3gKRBePReNjqR6XtoHxZ5q10cvxmUrxxcG6m0Kdm61oEGhmY";
        public static string GetUPSToken()
        {
            //var test_uri = "https://wwwcie.ups.com/security/v1/oauth/token";
            var zs_uri = "https://onlinetools.ups.com/security/v1/oauth/token";

            // 创建HttpClient实例
            HttpClient client = new HttpClient();

            // 设置Basic Auth验证
            string auth = Convert.ToBase64String(Encoding.ASCII.GetBytes($"{client_id}:{client_secret}"));
            client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", auth);

            // 添加自定义Header
            client.DefaultRequestHeaders.Add("x-merchant-id", client_id);

            // 添加自定义Body
            var requestBody = new Dictionary<string, object>
                                {
                                    {"grant_type","client_credentials"}
                                };
            var bodyStr = JsonConvert.SerializeObject(requestBody);

            ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
            // 创建 HttpRequestMessage 实例
            var request = new HttpRequestMessage(HttpMethod.Post, zs_uri);
            request.Content = new StringContent("grant_type=client_credentials", System.Text.Encoding.UTF8, "application/x-www-form-urlencoded");

            // 发送 POST 请求并返回响应结果
            var response = client.SendAsync(request).Result;
            var result = response.Content.ReadAsStringAsync().GetAwaiter().GetResult();

            var resObj = JsonConvert.DeserializeObject<UPSTokenModel>(result);
            Console.WriteLine(result);
            // Console.ReadKey();
            return resObj.access_token;
        }
    }
}