/// <summary>
/// Sends a possibly long text message.
/// Short messages are sent as text messages.
/// Long messages are sent as text files.
/// </summary>
/// <inheritdoc cref="TelegramBotClientExtensions.SendTextMessageAsync(ITelegramBotClient, ChatId, string, ParseMode?, IEnumerable{MessageEntity}?, bool?, bool?, int?, bool?, IReplyMarkup?, CancellationToken)"/>
public static Task SendPossiblyLongTextMessageAsync(
this ITelegramBotClient botClient,
ChatId chatId,
string text,
ParseMode?parseMode = null,
IEnumerable <MessageEntity>?entities = null,
bool?disableWebPagePreview = null,
bool?disableNotification = null,
bool?protectContent = null,
int?replyToMessageId = null,
bool?allowSendingWithoutReply = null,
IReplyMarkup?replyMarkup = null,
CancellationToken cancellationToken = default)
{
if (text.Length <= 4096)
{
return(botClient.SendTextMessageAsync(chatId,
text,
parseMode,
entities,
disableWebPagePreview,
disableNotification,
protectContent,
replyToMessageId,
allowSendingWithoutReply,
replyMarkup,
cancellationToken));
}
else // too large, send as file
{
var filename = parseMode switch
{
ParseMode.Markdown => "long-message.md",
ParseMode.Html => "long-message.html",
ParseMode.MarkdownV2 => "long-message.md",
_ => "long-message.txt",
};
return(botClient.SendTextFileFromStringAsync(chatId,
filename,
text,
null,
null,
parseMode,
entities,
null,
disableNotification,
protectContent,
replyToMessageId,
null,
replyMarkup,
cancellationToken));
}
}