import dev.inmo.tgbotapi.extensions.api.send.sendTextMessage import dev.inmo.tgbotapi.extensions.api.telegramBot import dev.inmo.tgbotapi.extensions.utils.flatMap import dev.inmo.tgbotapi.extensions.utils.formatting.codeMarkdownV2 import dev.inmo.tgbotapi.extensions.utils.formatting.regularMarkdownV2 import dev.inmo.tgbotapi.extensions.utils.safely import dev.inmo.tgbotapi.extensions.utils.shortcuts.mediaGroupMessages import dev.inmo.tgbotapi.extensions.utils.updates.asContentMessagesFlow import dev.inmo.tgbotapi.extensions.utils.updates.retrieving.startGettingFlowsUpdatesByLongPolling import dev.inmo.tgbotapi.types.ParseMode.MarkdownV2 import dev.inmo.tgbotapi.types.message.* import dev.inmo.tgbotapi.types.message.abstracts.PossiblyForwardedMessage import kotlinx.coroutines.* import kotlinx.coroutines.flow.* /** * This bot will always return message about forwarder. In cases when sent message was not a forward message it will * send suitable message */ suspend fun main(vararg args: String) { val botToken = args.first() val bot = telegramBot(botToken) val scope = CoroutineScope(Dispatchers.Default) bot.startGettingFlowsUpdatesByLongPolling(scope = scope) { (merge(messageFlow.asContentMessagesFlow(), mediaGroupMessages(scope).flatMap())).mapNotNull { it as? PossiblyForwardedMessage }.onEach { message -> safely({ it.printStackTrace() }) { val toAnswer = when (val forwardInfo = message.forwardInfo) { null -> "There is no forward info" is AnonymousForwardInfo -> "Anonymous user which signed as \"${forwardInfo.senderName.codeMarkdownV2()}\"" is UserForwardInfo -> forwardInfo.from.let { user -> "User ${user.id.chatId.toString().codeMarkdownV2()} " + "(${user.firstName} ${user.lastName}: ${user.username ?.username ?: "Without username"})".regularMarkdownV2() } is ForwardFromChannelInfo -> "Channel (".regularMarkdownV2() + (forwardInfo.channelChat).title.codeMarkdownV2() + ")".regularMarkdownV2() is ForwardFromSupergroupInfo -> "Supergroup (".regularMarkdownV2() + (forwardInfo.group).title.codeMarkdownV2() + ")".regularMarkdownV2() } bot.sendTextMessage(message.chat, toAnswer, MarkdownV2) } }.launchIn(scope) } scope.coroutineContext[Job]!!.join() }