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