using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.WebSockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Newtonsoft.Json;
using System.Net.Http.Headers;
using Chtn.CSharpSDK.Interfaces;
using Chtn.CSharp.SDK.Core;

namespace Chtn.CSharpSDK.Core
{
    public class WebSocketHandler
    {
        private static WebSocketHandler _instance;
        private ClientWebSocket _webSocket;
        private string _connectionId;

        public static WebSocketHandler GetInstance()
        {
            if (_instance == null)
            {
                _instance = new WebSocketHandler();
            }
            return _instance;
        }

        public async Task ConnectAsync(string userId, string token)
        {
            var client = HttpClientFactory.CreateClient();
            client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(token);

            try
            {
                var response = await client.PostAsync("v2/ws/makeToken",
                    new StringContent(JsonConvert.SerializeObject(new { userid = userId }), Encoding.UTF8, "application/json"));

                var content = await response.Content.ReadAsStringAsync();
                var authData = JsonConvert.DeserializeObject<dynamic>(content);

                string wsUrl = $"{EnvironmentConfig.Get().WsUrl}/vs/ws?userid={userId}&access_token={authData.token}";

                _webSocket = new ClientWebSocket();
                await _webSocket.ConnectAsync(new Uri(wsUrl), CancellationToken.None);

                Console.WriteLine("Connected to websocket successfully");
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Websocket hiba: {ex.Message}");
            }
        }
    }
}