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SignalsTestCmd/Messenger.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Telegram.Bot;
+using Telegram.Bot.Exceptions;
+using Telegram.Bot.Polling;
+using Telegram.Bot.Types;
+using Telegram.Bot.Types.Enums;
+
+namespace SignalsTest
+{
+    public class Messenger
+    {
+        TelegramBotClient botClient;
+
+        private static Messenger m_instance;
+        public static Messenger instance {  get { if (m_instance == null) { m_instance = new Messenger(); } return m_instance; } }
+
+        public async Task SendMessage(string text, string chat = "@doralockscryptosignals")
+        {
+            await botClient.SendTextMessageAsync(chat, text);
+        }
+
+        public async Task SendLastChart(string chat = "@doralockscryptosignals"){
+            FileStream fsSource = new FileStream("/var/www/html/test.png", FileMode.Open, FileAccess.Read);
+            InputFile photo = InputFile.FromStream(fsSource);
+            await botClient.SendPhotoAsync(chat, photo);
+            Console.WriteLine("Photo sent success");
+        }
+
+        public Messenger() 
+        {
+            botClient = new TelegramBotClient("6878629725:AAGWFqmtsvf2xFLOTvsixY-LEG4ho2sLqrw");
+            using CancellationTokenSource cts = new();
+
+            // StartReceiving does not block the caller thread. Receiving is done on the ThreadPool.
+            ReceiverOptions receiverOptions = new()
+            {
+                AllowedUpdates = Array.Empty<UpdateType>() // receive all update types except ChatMember related updates
+            };
+        }
+    }
+}