public async override void Execute(ITelegramBotClient botClient, Message message = null, string args = "")
{
var ids = System.IO.File.ReadAllLines("Files/Chats.txt");
if (ids.Contains(message.Chat.Id.ToString()))
{
await botClient.SendTextMessageAsync(message.Chat.Id,
"You're already being notified.");
}
else
{
botClient.AddChat(message.Chat.Id);
await botClient.SendTextMessageAsync(message.Chat.Id,
"From now on you will be notified each time a vpnbook password changes.");
}
}