TelegramBotAPI-examples/CustomBot/src/main/kotlin/CustomBot.kt

import dev.inmo.kslog.common.KSLog
import dev.inmo.kslog.common.LogLevel
import dev.inmo.kslog.common.defaultMessageFormatter
import dev.inmo.kslog.common.setDefaultKSLog
import dev.inmo.micro_utils.coroutines.subscribeSafelyWithoutExceptions
import dev.inmo.tgbotapi.extensions.api.bot.getMe
import dev.inmo.tgbotapi.extensions.behaviour_builder.telegramBotWithBehaviourAndLongPolling
import dev.inmo.tgbotapi.utils.PreviewFeature
import kotlinx.coroutines.*

/**
 * The main purpose of this bot is just to answer "Oh, hi, " and add user mention here
 */
@OptIn(PreviewFeature::class)
suspend fun main(vararg args: String) {
    val botToken = args.first()

    val isDebug = args.any { it == "debug" }

    if (isDebug) {
        setDefaultKSLog(
            KSLog { level: LogLevel, tag: String?, message: Any, throwable: Throwable? ->
                println(defaultMessageFormatter(level, tag, message, throwable))
            }
        )
    }

    telegramBotWithBehaviourAndLongPolling(botToken, CoroutineScope(Dispatchers.IO)) {
        val me = getMe()

        allUpdatesFlow.subscribeSafelyWithoutExceptions(this) { println(it) }
    }.second.join()
}