using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.IO;
using System.Json;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace VicsManager
{
    class ClientEmailnDE
    {
        public String USER_AGENT = "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0";

        public String AccessToken;

        public HttpClientHandler httpClientHandler;
        public HttpClient httpClient;

        public ClientEmailnDE()
        {
            AccessToken = "";

            httpClientHandler = new HttpClientHandler
            {
                AllowAutoRedirect = true,
                UseCookies = true,
                CookieContainer = new CookieContainer()
            };

            httpClient = new HttpClient(httpClientHandler);
        }

        public async Task createAsync()
        {
            AccessToken = Task.Run(async () => await setAccessTokenAsync()).Result;

            if (AccessToken != null && AccessToken.Length > 0)
            {
                Console.WriteLine("Access-Token: " + AccessToken);

                //httpClientHandler.CookieContainer.Add(new Cookie("Cookie", "session=1"));

                httpClient.DefaultRequestHeaders.Add("User-Agent", USER_AGENT);
                httpClient.DefaultRequestHeaders.Add("Accept", "application/json, text/plain, */*");
                httpClient.DefaultRequestHeaders.Add("Accept-Language", "de,en-US;q=0.7,en;q=0.3");

                //httpClient.Content.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
                //httpClient.DefaultRequestHeaders.Add("Accept-Encoding", "gzip, deflate, br");

                //httpClient.DefaultRequestHeaders.Add("X-CAPTCHA-TOKEN", "");
                httpClient.DefaultRequestHeaders.Add("Referrer", "https://www.emailn.de/e-mail-adresse-erstellen");
                //httpClient.DefaultRequestHeaders.Add("Host", "www.emailn.de");
                httpClient.DefaultRequestHeaders.Add("Upgrade-Insecure-Requests", "1");

                // Captcha
                httpClient.DefaultRequestHeaders.Add("X-CAPTCHA-SOLUTION", "");

                var email = "honorcool1";
                var contactEmail = "conmaxtact1@gmx.de";
                var domain = "emailn.de";
                var password = "Test.Pass494!";

                var parameters = new Dictionary<string, string> {
                        { "do", "createAccount" },
                        { "transPostVars", "true" },
                        { "email_local", email },
                        { "email_domain", domain },
                        { "phone", "" },
                        { "altmail", contactEmail },
                        { "pass1", password },
                        { "pass2", password },
                        { "g-recaptcha-response", "" },
                        { "tos", "true" }
                    };

                var encodedContent = new FormUrlEncodedContent(parameters);

                var response = await httpClient.PostAsync("https://www.emailn.de/webmail/index.php?action=signup", encodedContent);
                var result = await response.Content.ReadAsStringAsync();

                MessageBox.Show(result); // Disposed Exception
            }
            else
            {
                Console.WriteLine("Fehler");
            }
        }

        public async Task<string> setAccessTokenAsync()
        {
            using (var client = httpClient)
            {
                httpClient.DefaultRequestHeaders.Add("User-Agent", USER_AGENT);
                httpClient.DefaultRequestHeaders.Add("Accept", "text /html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
                httpClient.DefaultRequestHeaders.Add("Accept-Language", "de,en-US;q=0.7,en;q=0.3");
                httpClient.DefaultRequestHeaders.Add("Host", "www.emailn.de");
                httpClient.DefaultRequestHeaders.Add("DNT", "1");
                httpClient.DefaultRequestHeaders.Add("Upgrade-Insecure-Requests", "1");

                var response = await client.GetAsync("https://www.emailn.de/e-mail-adresse-erstellen");
                string responseString = String.Empty;

                if (response.IsSuccessStatusCode)
                {
                    responseString = await response.Content.ReadAsStringAsync();

                    string aToken = GetBetween(responseString, "data-sitekey=\".*?\"");

                    if (aToken != null && aToken.Length > 0)
                    {
                        aToken = aToken.Replace("data-sitekey=", "");
                        aToken = aToken.Replace("\"", "");

                        return aToken;
                    }
                }
            }

            return AccessToken;
        }

        public string GetBetween(string str, string regx)
        {
            var reg = new Regex(regx);
            var matches = reg.Matches(str);

            if(matches.Count > 0)
            {
                return matches[0].Value;
            }

            return null;
        }

        public CookieContainer Cookies
        {
            get { return httpClientHandler.CookieContainer; }
            set { httpClientHandler.CookieContainer = value; }
        }
    }
}