refactor bot execute method etc.

- change Log.exceptionLog(throwable) to an extension method throwable.toLogString in UseThrowable
- added SimpleCommandManager as the backend of both MornyCommandManager and UniMeowCommandManager
- added Request().execute and Request().unsafeExecute() extensions.
  - change all the request execute using those extensions.
- change some method with infix keyword.
- change MornyTrusted methods using User/Chat object instead of a bare id.
- update scala to 3.4.0-RC4 and fix infix warnings.

build.sbt

@@ -3,7 +3,7 @@ aether.AetherKeys.aetherOldVersionMethod := true
 ThisBuild / organization := "cc.sukazyo"
 ThisBuild / organizationName := "A.C. Sukazyo Eyre"
 
-ThisBuild / scalaVersion := "3.3.1"
+ThisBuild / scalaVersion := "3.4.0-RC4"
 
 resolvers ++= Seq(
 		"-ws-releases" at "https://mvn.sukazyo.cc/releases"
@@ -56,6 +56,20 @@ lazy val root = (project in file("."))
 				"-target", "17"
 			),
 			autoAPIMappings := true,
+			apiMappings ++= {
+				def mappingsFor(organization: String, names: List[String], location: String, revision: String => String = identity): Seq[(File, URL)] =
+					for {
+						entry: Attributed[File] <- (Compile / fullClasspath).value
+						module: ModuleID <- entry.get(moduleID.key)
+						if module.organization == organization
+						if names.exists(module.name.startsWith)
+					} yield entry.data -> url(location.format(revision(module.revision)))
+				val mappings: Seq[(File, URL)] = Seq(
+					mappingsFor("org.scala-lang", List("scala-library"), "https://scala-lang.org/api/%s/"),
+					mappingsFor("com.github.pengrad", "java-telegram-bot-api"::Nil, "https://jitpack.io/com/github/pengrad/java-telegram-bot-api/6.3.0/javadoc/"),
+				).flatten
+				mappings.toMap
+			},
 			
 			assemblyMergeStrategy := {
 				case module if module endsWith "module-info.class" => MergeStrategy.concat

project/MornyConfiguration.scala

@@ -8,7 +8,7 @@ object MornyConfiguration {
 	val MORNY_CODE_STORE = "https://github.com/Eyre-S/Coeur-Morny-Cono"
 	val MORNY_COMMIT_PATH = "https://github.com/Eyre-S/Coeur-Morny-Cono/commit/%s"
 	
-	val VERSION = "2.0.0-alpha13"
+	val VERSION = "2.0.0-alpha14"
 	val VERSION_DELTA: Option[String] = None
 	val CODENAME = "guanggu"
 	

src/main/scala/cc/sukazyo/cono/morny/call_me/OnCallMe.scala

@@ -4,14 +4,14 @@ import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{EventEnv, EventListener}
 import cc.sukazyo.cono.morny.data.TelegramStickers
 import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramFormatter.*
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.{Chat, Message, User}
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.{ForwardMessage, GetChat, SendMessage, SendSticker}
-
-import scala.language.postfixOps
+import com.pengrad.telegrambot.TelegramBot
 
 class OnCallMe (using coeur: MornyCoeur) extends EventListener {
+	private given TelegramBot = coeur.account
 	
 	private val me = coeur.config.trustedMaster
 	
@@ -30,65 +30,70 @@ class OnCallMe (using coeur: MornyCoeur) extends EventListener {
 					requestItem(update.message.from, "<b>Hana Paresu</b>")
 				case "dinner" | "lunch" | "breakfast" | "meal" | "eating" | "安妮今天吃什么" =>
 					requestLastDinner(update.message)
-				case cc if cc startsWith "cc::" =>
+				case cc if cc `startsWith` "cc::" =>
 					requestCustom(update.message)
 				case _ =>
 					return;
 		
 		if success then
-			coeur.account exec SendSticker(
+			SendSticker(
 				update.message.chat.id,
 				TelegramStickers ID_SENT
 			).replyToMessageId(update.message.messageId)
+				.unsafeExecute
 		else
-			coeur.account exec SendSticker(
+			SendSticker(
 				update.message.chat.id,
 				TelegramStickers ID_501
 			).replyToMessageId(update.message.messageId)
+				.unsafeExecute
 		
 		event.setEventOk
 		
 	}
 	
 	private def requestItem (user: User, itemHTML: String, extra: String|Null = null): Boolean =
-		coeur.account exec SendMessage(
+		SendMessage(
 			me,
 			s"""request $itemHTML
 			   |from ${user.fullnameRefHTML}${if extra == null then "" else "\n"+extra}"""
 			.stripMargin
 		).parseMode(ParseMode HTML)
+			.unsafeExecute
 		true
 	
 	private def requestLastDinner (req: Message): Boolean = {
 		if coeur.config.dinnerChatId == -1 then return false
 		var isAllowed = false
 		var lastDinnerData: Message|Null = null
-		if (coeur.trusted isTrusted_dinnerReader req.from.id) {
+		if (coeur.trusted isTrust4dinner req.from) {
 			// todo: have issues
 			//  i dont want to test it anymore... it might be deprecated soon
-			lastDinnerData = (coeur.account exec GetChat(coeur.config.dinnerChatId)).chat.pinnedMessage
-			val sendResp = coeur.account exec ForwardMessage(
+			lastDinnerData = GetChat(coeur.config.dinnerChatId).unsafeExecute.chat.pinnedMessage
+			val sendResp = ForwardMessage(
 				req.from.id,
 				lastDinnerData.forwardFromChat.id,
 				lastDinnerData.forwardFromMessageId
-			)
+			).unsafeExecute
 			import cc.sukazyo.cono.morny.util.CommonFormat.{formatDate, formatDuration}
 			import cc.sukazyo.cono.morny.util.EpochDateTime.EpochMillis
 			import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramParseEscape.escapeHtml as h
-			def lastDinner_dateMillis: EpochMillis = EpochMillis fromEpochSeconds lastDinnerData.forwardDate
-			coeur.account exec SendMessage(
+			def lastDinner_dateMillis: EpochMillis = EpochMillis fromSeconds lastDinnerData.forwardDate
+			SendMessage(
 				req.from.id,
 				"<i>on</i> <code>%s [UTC+8]</code>\n- <code>%s</code> <i>before</i>".formatted(
 					h(formatDate(lastDinner_dateMillis, 8)),
 					h(formatDuration(System.currentTimeMillis - lastDinner_dateMillis))
 				)
 			).parseMode(ParseMode HTML).replyToMessageId(sendResp.message.messageId)
+				.unsafeExecute
 			isAllowed = true
 		} else {
-			coeur.account exec SendSticker(
+			SendSticker(
 				req.from.id,
 				TelegramStickers ID_403
 			).replyToMessageId(req.messageId)
+				.unsafeExecute
 		}
 		import Math.abs
 		requestItem(
@@ -100,7 +105,8 @@ class OnCallMe (using coeur: MornyCoeur) extends EventListener {
 	
 	private def requestCustom (message: Message): Boolean =
 		requestItem(message.from, "<u>[???]</u>")
-		coeur.account exec ForwardMessage(me, message.chat.id, message.messageId)
+		ForwardMessage(me, message.chat.id, message.messageId)
+			.unsafeExecute
 		true
 	
 }

src/main/scala/cc/sukazyo/cono/morny/call_me/OnCallMsgSend.scala

@@ -3,16 +3,18 @@ package cc.sukazyo.cono.morny.call_me
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{EventEnv, EventListener}
 import cc.sukazyo.cono.morny.data.TelegramStickers
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.*
 import com.pengrad.telegrambot.model.{Chat, Message, MessageEntity}
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.{GetChat, SendMessage, SendSticker}
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.collection.mutable.ArrayBuffer
 import scala.language.postfixOps
 import scala.util.matching.Regex
 
 class OnCallMsgSend (using coeur: MornyCoeur) extends EventListener {
+	private given TelegramBot = coeur.account
 	
 	private val REGEX_MSG_SENDREQ_DATA_HEAD: Regex = "^\\*msg(-?\\d+)(\\*\\S+)?(?:\\n([\\s\\S]+))?$"r
 	
@@ -25,12 +27,12 @@ class OnCallMsgSend (using coeur: MornyCoeur) extends EventListener {
 		def toSendMessage (target_override: Long|Null = null): SendMessage =
 			val useTarget = if target_override == null then targetId else target_override
 			val sendMessage = SendMessage(useTarget, message)
-			if entities ne null then sendMessage.entities(entities:_*)
+			if entities ne null then sendMessage.entities(entities*)
 			if parseMode ne null then sendMessage.parseMode(parseMode)
 			sendMessage
 	}
 	private object MessageToSend:
-		def from (raw: Message): MessageToSend = {
+		infix def from (raw: Message): MessageToSend = {
 			raw.text match
 				case REGEX_MSG_SENDREQ_DATA_HEAD(_target, _parseMode, _body) =>
 					val target = _target toLong
@@ -57,15 +59,15 @@ class OnCallMsgSend (using coeur: MornyCoeur) extends EventListener {
 		
 		val message = update.message
 		
-		if message.chat.`type` != Chat.Type.Private then return;
-		if message.text eq null then return;
-		if !(message.text startsWith "*msg") then return;
+		if message.chat.`type` != Chat.Type.Private then return
+		if message.text eq null then return
+		if !(message.text `startsWith` "*msg") then return
 		
-		if (!(coeur.trusted isTrusted message.from.id))
-			coeur.account exec SendSticker(
+		if (!(coeur.trusted isTrust message.from))
+			SendSticker(
 				message.chat.id,
 				TelegramStickers ID_403
-			).replyToMessageId(message.messageId)
+			).replyToMessageId(message.messageId).unsafeExecute
 			event.setEventOk
 			return;
 		
@@ -74,21 +76,23 @@ class OnCallMsgSend (using coeur: MornyCoeur) extends EventListener {
 			if (message.replyToMessage eq null) { answer404; return }
 			val messageToSend = MessageToSend from message.replyToMessage
 			if ((messageToSend eq null) || (messageToSend.message eq null)) { answer404; return }
-			val sendResponse = coeur.account execute messageToSend.toSendMessage()
+			val sendResponse = messageToSend.toSendMessage().execute
 			
 			if (sendResponse isOk) {
-				coeur.account exec SendSticker(
+				SendSticker(
 					update.message.chat.id,
 					TelegramStickers ID_SENT
 				).replyToMessageId(update.message.messageId)
+					.unsafeExecute
 			} else {
-				coeur.account exec SendMessage(
+				SendMessage(
 					update.message.chat.id,
 					// language=html
 					s"""<b><u>${sendResponse.errorCode} FAILED</u></b>
 					   |<code>${sendResponse.description}</code>"""
 					.stripMargin
 				).replyToMessageId(update.message.messageId).parseMode(ParseMode HTML)
+					.unsafeExecute
 			}
 			
 			event.setEventOk
@@ -101,14 +105,14 @@ class OnCallMsgSend (using coeur: MornyCoeur) extends EventListener {
 				if (message.text == "*msg")
 					if message.replyToMessage eq null then { answer404; return }
 					else message.replyToMessage
-				else if (message.text startsWith "*msg")
+				else if (message.text `startsWith` "*msg")
 					message
 				else { answer404; return }
 			val _toSend = MessageToSend from raw
 			if _toSend eq null then { answer404; return }
 			else _toSend
 		
-		val targetChatResponse = coeur.account execute GetChat(messageToSend.targetId)
+		val targetChatResponse = GetChat(messageToSend.targetId).execute
 		if (targetChatResponse isOk) {
 			def getChatDescriptionHTML (chat: Chat): String =
 				import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramFormatter.*
@@ -117,41 +121,46 @@ class OnCallMsgSend (using coeur: MornyCoeur) extends EventListener {
 				s"""<i><u>${h(chat.id toString)}</u>@${h(chat.`type`.name)}</i>${if (chat.`type` != Chat.Type.Private) ":::" else ""}
 				   |${chat.typeTag} <b>${h(chat.safe_name)}</b> ${chat.safe_linkHTML}"""
 				.stripMargin
-			coeur.account exec SendMessage(
+			SendMessage(
 				update.message.chat.id,
 				getChatDescriptionHTML(targetChatResponse.chat)
 			).parseMode(ParseMode HTML).replyToMessageId(update.message.messageId)
+				.unsafeExecute
 		} else {
-			coeur.account exec SendMessage(
+			SendMessage(
 				update.message.chat.id,
 				// language=html
 				s"""<b><u>${targetChatResponse.errorCode} FAILED</u></b>
 				   |<code>${targetChatResponse.description}</code>"""
 						.stripMargin
 			).parseMode(ParseMode HTML).replyToMessageId(update.message.messageId)
+				.unsafeExecute
 		}
 		
 		if messageToSend.message eq null then { answer404; return }
-		val testSendResponse = coeur.account execute
+		val testSendResponse =
 			messageToSend.toSendMessage(update.message.chat.id).replyToMessageId(update.message.messageId)
+				.execute
 		if (!(testSendResponse isOk))
-			coeur.account exec SendMessage(
+			SendMessage(
 				update.message.chat.id,
 				// language=html
 				s"""<b><u>${testSendResponse.errorCode}</u> FAILED</b>
 				   |<code>${testSendResponse.description}</code>"""
 				.stripMargin
 			).parseMode(ParseMode HTML).replyToMessageId(update.message.messageId)
+				.unsafeExecute
 		
 		event.setEventOk
 		
 	}
 	
 	private def answer404 (using event: EventEnv): Unit =
-		coeur.account exec SendSticker(
+		SendSticker(
 			event.update.message.chat.id,
 			TelegramStickers ID_404
 		).replyToMessageId(event.update.message.messageId)
+			.unsafeExecute
 		event.setEventOk
 	
 }

src/main/scala/cc/sukazyo/cono/morny/core/Log.scala

@@ -4,8 +4,6 @@ import cc.sukazyo.cono.morny.core.internal.logging.{MornyFormatterConsole, Morny
 import cc.sukazyo.messiva.appender.ConsoleAppender
 import cc.sukazyo.messiva.log.LogLevels
 
-import java.io.{PrintWriter, StringWriter}
-
 object Log {
 	
 	val logger: MornyLoggerBase = MornyLoggerBase(
@@ -13,7 +11,7 @@ object Log {
 			MornyFormatterConsole()
 		)
 	)
-	logger minLevel LogLevels.INFO
+	logger.minLevel(LogLevels.INFO)
 	
 	def debug: Boolean = logger.levelSetting.minLevel.level <= LogLevels.DEBUG.level
 	
@@ -21,9 +19,4 @@ object Log {
 		if is then logger.minLevel(LogLevels.ALL)
 		else logger.minLevel(LogLevels.INFO)
 	
-	def exceptionLog (e: Throwable): String =
-		val stackTrace = StringWriter()
-		e printStackTrace PrintWriter(stackTrace)
-		stackTrace toString
-	
 }

src/main/scala/cc/sukazyo/cono/morny/core/MornyAbout.scala

@@ -7,7 +7,7 @@ import java.io.IOException
 object MornyAbout {
 	
 	val MORNY_PREVIEW_IMAGE_ASCII: String =
-		try { MornyAssets.pack getResource "texts/server-hello.txt" readAsString }
+		try { MornyAssets.pack `getResource` "texts/server-hello.txt" readAsString }
 		catch case e: IOException =>
 			throw RuntimeException("Cannot read MORNY_PREVIEW_IMAGE_ASCII from assets pack", e)
 	

src/main/scala/cc/sukazyo/cono/morny/core/MornyCoeur.scala

@@ -1,6 +1,6 @@
 package cc.sukazyo.cono.morny.core
 
-import cc.sukazyo.cono.morny.core.Log.{exceptionLog, logger}
+import cc.sukazyo.cono.morny.core.Log.logger
 import cc.sukazyo.cono.morny.core.MornyCoeur.*
 import cc.sukazyo.cono.morny.core.bot.api.{EventListenerManager, MornyCommandManager, MornyQueryManager}
 import cc.sukazyo.cono.morny.core.bot.event.{MornyOnInlineQuery, MornyOnTelegramCommand, MornyOnUpdateTimestampOffsetLock}
@@ -11,6 +11,7 @@ import cc.sukazyo.cono.morny.util.schedule.Scheduler
 import cc.sukazyo.cono.morny.util.EpochDateTime.EpochMillis
 import cc.sukazyo.cono.morny.util.time.WatchDog
 import cc.sukazyo.cono.morny.util.GivenContext
+import cc.sukazyo.cono.morny.util.UseThrowable.toLogString
 import com.pengrad.telegrambot.TelegramBot
 import com.pengrad.telegrambot.request.GetMe
 
@@ -115,7 +116,7 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 	
 	val externalContext: GivenContext = GivenContext()
 	import cc.sukazyo.cono.morny.util.dataview.Table.format as fmtTable
-	logger info
+	logger `info`
 		s"""The following Modules have been added to current Morny:
 		   |${fmtTable(
 				("Module ID" :: "Module Name" :: "Module Version" :: Nil)::Nil :::
@@ -125,19 +126,19 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 	
 	///>>> BLOCK START instance configure & startup stage 1
 	
-	logger info "Coeur starting..."
+	logger `info` "Coeur starting..."
 	private var initializeContext = GivenContext()
 	
 	import cc.sukazyo.cono.morny.util.StringEnsure.deSensitive
-	logger info s"args key:\n  ${config.telegramBotKey deSensitive 4}"
+	logger `info` s"args key:\n  ${config.telegramBotKey.deSensitive(4)}"
 	if config.telegramBotUsername ne null then
-		logger info s"login as:\n  ${config.telegramBotUsername}"
+		logger `info` s"login as:\n  ${config.telegramBotUsername}"
 	
 	private val __loginResult: LoginResult = login() match
 		case some: Some[LoginResult] => some.get
 		case None =>
-			logger error "Login to bot failed."
-			System exit -1
+			logger `error` "Login to bot failed."
+			System `exit` -1
 			throw RuntimeException()
 	initializeContext << __loginResult
 	
@@ -221,7 +222,7 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 	
 	val watchDog: WatchDog = WatchDog("watch-dog", 1000, 1500, { (consumed, _) =>
 		import cc.sukazyo.cono.morny.util.CommonFormat.formatDuration as f
-		logger warn
+		logger `warn`
 			s"""Can't keep up! is the server overloaded or host machine fall asleep?
 			   |  current tick takes ${f(consumed)} to complete.""".stripMargin
 		tasks.notifyIt()
@@ -238,9 +239,9 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 	
 	///>>> BLOCK START instance configure & startup stage 2
 	
-	logger info "done initialize."
+	logger `info` "done initialize."
 	if testRun then
-		logger info "done test run, exiting."
+		logger `info` "done test run, exiting."
 		this.exit(0, TestRun)
 	
 	// Coeur Starting Pre
@@ -250,10 +251,10 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 	modules.foreach(it => it.onStarting(OnStartingContext(
 		initializeContext)))
 	
-	logger info "start http server"
+	logger `info` "start http server"
 	val http: HttpServer = _httpServerContext.start
 	_httpServerContext = null
-	logger info "start telegram event listening"
+	logger `info` "start telegram event listening"
 	import com.pengrad.telegrambot.TelegramException
 	account.setUpdatesListener(eventManager, (e: TelegramException) => {
 		
@@ -267,10 +268,10 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 		
 		if (e.response != null) {
 			import com.google.gson.GsonBuilder
-			logger error
+			logger `error`
 				s"""Failed get updates: ${e.getMessage}
 				   |  server responses:
-				   |${GsonBuilder().setPrettyPrinting().create.toJson(e.response) indent 4}
+				   |${GsonBuilder().setPrettyPrinting().create.toJson(e.response).indent(4)}
 				   |""".stripMargin
 			externalContext.consume[MornyReport](_.exception(e, "Failed get updates."))
 		}
@@ -291,11 +292,11 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 						current = current.getCause
 						log += s"  caused by: ${current.getClass.getSimpleName}: ${current.getMessage}"
 					}
-					logger error Message(log mkString "\n")
+					logger `error` Message(log mkString "\n")
 				case e_other =>
-					logger error
+					logger `error`
 						s"""Failed get updates:
-						   |${exceptionLog(e_other) indent 3}""".stripMargin
+						   |${e_other.toLogString `indent` 3}""".stripMargin
 					externalContext.consume[MornyReport](_.exception(e_other, "Failed get updates."))
 		}
 		
@@ -306,17 +307,17 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 		initializeContext)))
 	
 	if config.commandLoginRefresh then
-		logger info "resetting telegram command list"
+		logger `info` "resetting telegram command list"
 		commands.automaticTGListUpdate()
 	
 	initializeContext = null
-	logger info "Coeur start complete."
+	logger `info` "Coeur start complete."
 	
 	///<<< BLOCK END instance configure & startup stage 2
 	
 	def saveDataAll(): Unit = {
 		modules.foreach(it => it.onRoutineSavingData)
-		logger notice "done all save action."
+		logger `notice` "done all save action."
 	}
 	
 	private def exitCleanup (): Unit = {
@@ -325,9 +326,9 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 		modules.foreach(it => it.onExiting)
 		
 		account.removeGetUpdatesListener()
-		logger info "stopped bot update listener"
+		logger `info` "stopped bot update listener"
 		tasks.waitForStop()
-		logger info s"morny tasks stopped: remains ${tasks.amount} tasks not be executed"
+		logger `info` s"morny tasks stopped: remains ${tasks.amount} tasks not be executed"
 		
 		// Morny Exiting Post
 		if config.commandLogoutClear then
@@ -335,10 +336,10 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 		modules.foreach(it => it.onExitingPost)
 		
 		account.shutdown()
-		logger info "stopped bot account"
+		logger `info` "stopped bot account"
 		// Morny Exited
 		modules.foreach(it => it.onExited)
-		logger info "done exit cleanup\nMorny will EXIT now"
+		logger `info` "done exit cleanup\nMorny will EXIT now"
 		
 	}
 	
@@ -348,7 +349,7 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 	
 	def exit (status: Int, reason: AnyRef): Unit =
 		whileExit_reason = Some(reason)
-		System exit status
+		System `exit` status
 	
 	private case class LoginResult(account: TelegramBot, username: String, userid: Long)
 	
@@ -358,15 +359,15 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 		var api_bot = config.telegramBotApiServer
 		var api_file = config.telegramBotApiServer4File
 		if (api_bot ne null)
-			if api_bot endsWith "/" then api_bot = api_bot dropRight 1
-			if !(api_bot endsWith "/bot") then api_bot += "/bot"
+			if api_bot `endsWith` "/" then api_bot = api_bot dropRight 1
+			if !(api_bot `endsWith` "/bot") then api_bot += "/bot"
 			builder.apiUrl(api_bot)
 		if (api_file ne null)
-			if api_file endsWith "/file/" then api_file = api_file dropRight 1
-			if !(api_file endsWith "/file/bot") then api_file += "/file/bot"
+			if api_file `endsWith` "/file/" then api_file = api_file dropRight 1
+			if !(api_file `endsWith` "/file/bot") then api_file += "/file/bot"
 			builder.apiUrl(api_bot)
 		if ((api_bot ne null) || (api_file ne null))
-			logger info
+			logger `info`
 					s"""Telegram bot api set to:
 					   |- bot: $api_bot
 					   |- file: $api_file"""
@@ -374,21 +375,22 @@ class MornyCoeur (modules: List[MornyModule])(using val config: MornyConfig)(tes
 		
 		val account = builder build
 		
-		logger info "Trying to login..."
+		logger `info` "Trying to login..."
 		boundary[Option[LoginResult]] {
 			for (i <- 0 to 3) {
-				if i > 0 then logger info "retrying..."
+				if i > 0 then logger `info` "retrying..."
 				try {
-					val remote = (account execute GetMe()).user
+					import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.execute
+					val remote = GetMe().execute(using account).user
 					if ((config.telegramBotUsername ne null) && config.telegramBotUsername != remote.username)
 						throw RuntimeException(s"Required the bot @${config.telegramBotUsername} but @${remote.username} logged in")
-					logger info s"Succeed logged in to @${remote.username}"
+					logger `info` s"Succeed logged in to @${remote.username}"
 					break(Some(LoginResult(account, remote.username, remote.id)))
 				} catch
 					case r: boundary.Break[Option[LoginResult]] => throw r
 					case e =>
-						logger error
-							s"""${exceptionLog(e)}
+						logger `error`
+							s"""${e.toLogString}
 							   |login failed"""
 								.stripMargin
 			}

src/main/scala/cc/sukazyo/cono/morny/core/MornySystem.scala

@@ -1,10 +1,11 @@
 package cc.sukazyo.cono.morny.core
 
-import cc.sukazyo.cono.morny.core.Log.{exceptionLog, logger}
+import cc.sukazyo.cono.morny.core.Log.logger
 import cc.sukazyo.cono.morny.core.internal.BuildConfigField
 import cc.sukazyo.cono.morny.util.EpochDateTime.EpochMillis
 import cc.sukazyo.cono.morny.util.FileUtils
 import cc.sukazyo.cono.morny.BuildConfig
+import cc.sukazyo.cono.morny.util.UseThrowable.toLogString
 
 import java.io.IOException
 import java.net.URISyntaxException
@@ -38,7 +39,7 @@ object MornySystem {
 			case _: (IOException|URISyntaxException) =>
 				"<non-jar-runtime>"
 			case n: NoSuchAlgorithmException =>
-				logger error exceptionLog(n)
+				logger `error` n.toLogString
 //				MornyReport.exception(n, "<coeur-md5/calculation-error>") // todo: will not implemented
 				"<calculation-error>"
 	}

src/main/scala/cc/sukazyo/cono/morny/core/MornyTrusted.scala

@@ -5,20 +5,33 @@ import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.{LimboChat, LimboUser
 import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Chat.*
 import com.pengrad.telegrambot.model.ChatMember.Status
 import com.pengrad.telegrambot.TelegramBot
+import com.pengrad.telegrambot.model.User
 
 class MornyTrusted (using coeur: MornyCoeur)(using config: MornyConfig) {
 	
 	if config.trustedMaster == -1 then
-		logger warn "You have not set your Morny's master.\n  it may have some issues on controlling your bot."
+		logger `warn` "You have not set your Morny's master.\n  it may have some issues on controlling your bot."
 	
-	def isTrusted (userId: Long): Boolean =
+	/** If the user can be trusted.
+	  * @since 2.0.0
+	  * @param user The user that will be check if it is in this trust list. Only user's id will be used,
+	  *             so if you don't have a user instance, you can safely use [[LimboUser]].
+	  * @return `true` if this user can be trusted, `false` otherwise.
+	  */
+	infix def isTrust (user: User): Boolean =
 		given TelegramBot = coeur.account
-		if userId == config.trustedMaster then true
+		if user.id == config.trustedMaster then true
 		else if config.trustedChat == -1 then false
-		else LimboChat(config.trustedChat) memberHasPermission(LimboUser(userId), Status.administrator)
+		else LimboChat(config.trustedChat).memberHasPermission(user, Status.administrator)
 	
-	def isTrusted_dinnerReader (userId: Long): Boolean =
-		if userId == config.trustedMaster then true
-		else config.dinnerTrustedReaders contains userId
+	/** If this user can be trusted to read the dinner messages.
+	  * @since 2.0.0
+	  * @param user The user that will be check if it is in this trust list. Only user's id will be used,
+	  *             so if you don't have a user instance, you can safely use [[LimboUser]].
+	  * @return `true` if this user can read dinners, `false` otherwise.
+	  */
+	infix def isTrust4dinner (user: User): Boolean =
+		if user.id == config.trustedMaster then true
+		else config.dinnerTrustedReaders `contains` user.id
 	
 }

src/main/scala/cc/sukazyo/cono/morny/core/ServerMain.scala

@@ -11,7 +11,7 @@ import scala.collection.mutable.ArrayBuffer
 object ServerMain {
 	
 	val tz: TimeZone = TimeZone getDefault
-	val tz_offset: ZoneOffset = ZoneOffset ofTotalSeconds(tz.getRawOffset / 1000)
+	val tz_offset: ZoneOffset = ZoneOffset `ofTotalSeconds` (tz.getRawOffset / 1000)
 	
 	private val THREAD_MORNY_INIT: String = "morny-init"
 	
@@ -54,7 +54,7 @@ object ServerMain {
 				case "--report-to" => i += 1; config.reportToChat = args(i) toLong
 				case "--report-zone" => i += 1; config.reportZone = TimeZone.getTimeZone(args(i))
 				
-				case "--trusted-reader-dinner" | "-trsd" => i += 1; config.dinnerTrustedReaders add(args(i) toLong)
+				case "--trusted-reader-dinner" | "-trsd" => i += 1; config.dinnerTrustedReaders `add` (args(i) toLong)
 				case "--dinner-chat" | "-chd" => i += 1; config.dinnerChatId = args(i) toLong
 				
 				case "--http-listen-port" | "-hp" =>
@@ -67,8 +67,8 @@ object ServerMain {
 					config.medicationTimerUseTimezone = ZoneOffset.ofHours(args(i) toInt)
 				case "--medication-notify-times" | "-medt" =>
 					i += 1
-					for (u <- args(i) split ",") {
-						config.medicationNotifyAt add(u toInt)
+					for (u <- args(i) `split` ",") {
+						config.medicationNotifyAt `add` (u toInt)
 					}
 				
 				case "--auto-cmd-list" | "-ca" => config.commandLoginRefresh = true
@@ -87,8 +87,8 @@ object ServerMain {
 		var propToken: String = null
 		var propTokenKey: String = null
 		for (iKey <- MornyConfig.PROP_TOKEN_KEY) {
-			if ((System getenv iKey) != null) {
-				propToken = System getenv iKey
+			if ((System `getenv` iKey) != null) {
+				propToken = System `getenv` iKey
 				propTokenKey = iKey
 			}
 		}
@@ -98,27 +98,27 @@ object ServerMain {
 		/// process startup params - like startup mode
 		///
 		
-		if (showHello) logger info MornyAbout.MORNY_PREVIEW_IMAGE_ASCII
+		if (showHello) logger `info` MornyAbout.MORNY_PREVIEW_IMAGE_ASCII
 		if (mode_echoHello) return
 		
-		if (unknownArgs.nonEmpty) logger warn
+		if (unknownArgs.nonEmpty) logger `warn`
 			s"""Can't understand arg to some meaning
 			   |  ${unknownArgs mkString "\n  "}"""
 				.stripMargin
-		if (deprecatedArgs.nonEmpty) logger warn
+		if (deprecatedArgs.nonEmpty) logger `warn`
 			s"""Those arguments have been deprecated:
 			   |  ${deprecatedArgs map((d, n) => s"$d : use $n instead") mkString "\n  "}
 			   |""".stripMargin
 		
 		if (Log debug)
-			logger warn
+			logger `warn`
 				"""Debug log output enabled.
 				  |  It may lower your performance, make sure that you are not in production environment."""
 					.stripMargin
 		
 		if (mode_echoVersion) {
 			
-			logger info
+			logger `info`
 				s"""Morny Cono Version
 				   |- version :
 				   |    Morny ${MornySystem.CODENAME toUpperCase}
@@ -148,14 +148,14 @@ object ServerMain {
 			
 		}
 		
-		logger info
+		logger `info`
 			s"""ServerMain.java Loaded >>>
 			   |- version ${MornySystem.VERSION_FULL}
 			   |- Morny ${MornySystem.CODENAME toUpperCase}
 			   |- <${MornySystem.getJarMD5}> [${MornySystem.CODE_TIMESTAMP}]""".stripMargin
 		
 		// due to [[MornyFormatterConsole]] will use a localized time, it will output to the log
-		logger info s"logging time will use time-zone ${tz.getID} ($tz_offset)"
+		logger `info` s"logging time will use time-zone ${tz.getID} ($tz_offset)"
 		
 		///
 		/// Check Coeur arguments
@@ -164,10 +164,10 @@ object ServerMain {
 		
 		if (propToken != null) {
 			config.telegramBotKey = propToken
-			logger info s"Parameter <token> set by EnvVar $$$propTokenKey"
+			logger `info` s"Parameter <token> set by EnvVar $$$propTokenKey"
 		}
 		
-		Thread.currentThread setName THREAD_MORNY_INIT
+		Thread.currentThread `setName` THREAD_MORNY_INIT
 		
 		try
 			MornyCoeur(

src/main/scala/cc/sukazyo/cono/morny/core/bot/api/EventListenerManager.scala

@@ -1,15 +1,15 @@
 package cc.sukazyo.cono.morny.core.bot.api
 
 import cc.sukazyo.cono.morny.core.{Log, MornyCoeur}
-import cc.sukazyo.cono.morny.core.Log.{exceptionLog, logger}
+import cc.sukazyo.cono.morny.core.Log.logger
 import cc.sukazyo.cono.morny.reporter.MornyReport
 import cc.sukazyo.cono.morny.util.tgapi.event.EventRuntimeException
+import cc.sukazyo.cono.morny.util.UseThrowable.toLogString
 import com.google.gson.GsonBuilder
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.UpdatesListener
 
 import scala.collection.mutable
-import scala.language.postfixOps
 
 /** Contains a [[scala.collection.mutable.Queue]] of [[EventListener]], and delivery telegram [[Update]].
   *
@@ -21,13 +21,16 @@ class EventListenerManager (using coeur: MornyCoeur) extends UpdatesListener {
 	
 	private val listeners = mutable.Queue.empty[EventListener]
 	
+	infix def register (listener: EventListener): Unit =
+		this.listeners += listener
+	
 	def register (listeners: EventListener*): Unit =
 		this.listeners ++= listeners
 	
 	private class EventRunner (using update: Update) extends Thread {
-		this setName s"upd-${update.updateId()}-nn"
+		this `setName` s"upd-${update.updateId()}-nn"
 		private def updateThreadName (t: String): Unit =
-			this setName s"upd-${update.updateId()}-$t"
+			this `setName` s"upd-${update.updateId()}-$t"
 		
 		override def run (): Unit = {
 			
@@ -80,15 +83,15 @@ class EventListenerManager (using coeur: MornyCoeur) extends UpdatesListener {
 			} catch case e => {
 				val errorMessage = StringBuilder()
 				errorMessage ++= "Event throws unexpected exception:\n"
-				errorMessage ++= (exceptionLog(e) indent 4)
+				errorMessage ++= (e.toLogString `indent` 4)
 				e match
 					case actionFailed: EventRuntimeException.ActionFailed =>
 						errorMessage ++= "\ntg-api action: response track: "
 						errorMessage ++= (GsonBuilder().setPrettyPrinting().create().toJson(
 							actionFailed.response
-						) indent 4) ++= "\n"
+						) `indent` 4) ++= "\n"
 					case _ =>
-				logger error errorMessage.toString
+				logger `error` errorMessage.toString
 				coeur.externalContext.consume[MornyReport](_.exception(e, "on event running"))
 			}
 		}

src/main/scala/cc/sukazyo/cono/morny/core/bot/api/ITelegramQuery.scala

@@ -1,12 +1,9 @@
 package cc.sukazyo.cono.morny.core.bot.api
 
-import cc.sukazyo.cono.morny.core.MornyCoeur
 import com.pengrad.telegrambot.model.Update
 
-import javax.annotation.Nullable
-
 trait ITelegramQuery {
 	
-	def query (event: Update): List[InlineQueryUnit[_]] | Null
+	def query (event: Update): List[InlineQueryUnit[?]] | Null
 	
 }

src/main/scala/cc/sukazyo/cono/morny/core/bot/api/MornyCommandManager.scala

@@ -2,13 +2,12 @@ package cc.sukazyo.cono.morny.core.bot.api
 
 import cc.sukazyo.cono.morny.core.Log.logger
 import cc.sukazyo.cono.morny.core.MornyCoeur
-import cc.sukazyo.cono.morny.core.bot.api.{ISimpleCommand, ITelegramCommand}
-import cc.sukazyo.cono.morny.core.bot.api.MornyCommandManager.CommandMap
 import cc.sukazyo.cono.morny.data.TelegramStickers
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.{BotCommand, DeleteMyCommands, Update}
 import com.pengrad.telegrambot.request.{SendSticker, SetMyCommands}
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.collection.mutable
 import scala.collection.mutable.ArrayBuffer
@@ -17,14 +16,8 @@ import scala.language.postfixOps
 object MornyCommandManager:
 	type CommandMap = mutable.SeqMap[String, ISimpleCommand]
 
-class MornyCommandManager (using coeur: MornyCoeur) {
-	
-	private val commands: CommandMap = mutable.SeqMap.empty
-	def register [T <: ISimpleCommand] (commands: T*): Unit =
-		for (i <- commands)
-			this.commands += (i.name -> i)
-			for (alias <- i.aliases)
-				this.commands += (alias.name -> i)
+class MornyCommandManager (using coeur: MornyCoeur) extends SimpleCommandManager {
+	private given TelegramBot = coeur.account
 	
 	def execute (using command: InputCommand, event: Update): Boolean = {
 		if (commands contains command.command)
@@ -36,25 +29,28 @@ class MornyCommandManager (using coeur: MornyCoeur) {
 	private def nonCommandExecutable (using command: InputCommand, event: Update): Boolean = {
 		if command.target eq null then false
 		else
-			coeur.account exec SendSticker(
+			SendSticker(
 				event.message.chat.id,
 				TelegramStickers ID_404
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 			true
 	}
 	
 	def automaticTGListUpdate (): Unit = {
 		val listing = commands_toTelegramList
 		automaticTGListRemove()
-		coeur.account exec SetMyCommands(listing:_*)
-		logger notice
+		SetMyCommands(listing*)
+			.unsafeExecute
+		logger `notice`
 				s"""automatic updated telegram command list :
 				   |${commandsTelegramList_toString(listing)}""".stripMargin
 	}
 	
 	def automaticTGListRemove (): Unit = {
-		coeur.account exec DeleteMyCommands()
-		logger notice "cleaned up command list"
+		DeleteMyCommands()
+			.unsafeExecute
+		logger `notice` "cleaned up command list"
 	}
 	
 	private def commandsTelegramList_toString (list: Array[BotCommand]): String =

src/main/scala/cc/sukazyo/cono/morny/core/bot/api/MornyQueryManager.scala

@@ -10,13 +10,16 @@ class MornyQueryManager (using MornyCoeur) {
 	
 	private val queries = mutable.Queue.empty[ITelegramQuery]
 	
+	infix def register (query: ITelegramQuery): Unit =
+		this.queries += query
+	
 	def register (queries: ITelegramQuery*): Unit =
 		this.queries ++= queries
 	
-	def query (event: Update): List[InlineQueryUnit[_]] = {
-		val results = ListBuffer[InlineQueryUnit[_]]()
+	def query (event: Update): List[InlineQueryUnit[?]] = {
+		val results = ListBuffer[InlineQueryUnit[?]]()
 		for (instance <- queries) {
-			val r = instance query event
+			val r = instance `query` event
 			if (r != null) results ++= r
 		}
 		results.result()

src/main/scala/cc/sukazyo/cono/morny/core/bot/api/SimpleCommandManager.scala

@@ -0,0 +1,21 @@
+package cc.sukazyo.cono.morny.core.bot.api
+
+import cc.sukazyo.cono.morny.core.bot.api.MornyCommandManager.CommandMap
+
+import scala.collection.mutable
+
+trait SimpleCommandManager {
+	
+	protected val commands: CommandMap = mutable.SeqMap.empty
+	
+	protected def doRegister [T <: ISimpleCommand](it: T): Unit =
+		this.commands += (it.name -> it)
+		for (alias <- it.aliases)
+			this.commands += (alias.name -> it)
+	
+	infix def register [T <: ISimpleCommand] (command: T): Unit =
+		doRegister(command)
+	def register [T <: ISimpleCommand] (commands: T*): Unit =
+		for (command <- commands) doRegister(command)
+	
+}

src/main/scala/cc/sukazyo/cono/morny/core/bot/command/DirectMsgClear.scala

@@ -5,28 +5,30 @@ import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ISimpleCommand}
 import cc.sukazyo.cono.morny.data.TelegramStickers
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.{Chat, Update}
 import com.pengrad.telegrambot.request.{DeleteMessage, GetChatMember, SendSticker}
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.language.postfixOps
 
 class DirectMsgClear (using coeur: MornyCoeur) extends ISimpleCommand {
+	private given TelegramBot = coeur.account
 	
 	override val name: String = "r"
 	override val aliases: List[ICommandAlias] = Nil
 	
 	override def execute (using command: InputCommand, event: Update): Unit = {
 		
-		logger debug "executing command /r"
-		if (event.message.replyToMessage == null) return;
-		logger trace "message is a reply"
-		if (event.message.replyToMessage.from.id != coeur.userid) return;
-		logger trace "message replied is from me"
-		if (System.currentTimeMillis/1000 - event.message.replyToMessage.date > 48*60*60) return;
-		logger trace "message is not outdated(48 hrs ago)"
+		logger `debug` "executing command /r"
+		if (event.message.replyToMessage == null) return
+		logger `trace` "message is a reply"
+		if (event.message.replyToMessage.from.id != coeur.userid) return
+		logger `trace` "message replied is from me"
+		if (System.currentTimeMillis/1000 - event.message.replyToMessage.date > 48*60*60) return
+		logger `trace` "message is not outdated(48 hrs ago)"
 		
-		val isTrusted = coeur.trusted isTrusted event.message.from.id
+		val isTrusted = coeur.trusted isTrust event.message.from
 		// todo:
 		//  it does not work. due to the Telegram Bot API doesn't provide
 		//  nested replyToMessage, so currently the trusted check by
@@ -38,22 +40,22 @@ class DirectMsgClear (using coeur: MornyCoeur) extends ISimpleCommand {
 		
 		if (isTrusted || _isReplyTrusted) {
 		
-			coeur.account exec DeleteMessage(
+			DeleteMessage(
 				event.message.chat.id, event.message.replyToMessage.messageId
-			)
+			).unsafeExecute
 			
 			def _isPrivate: Boolean = event.message.chat.`type` == Chat.Type.Private
 			def _isPermission: Boolean =
-				(coeur.account exec GetChatMember(event.message.chat.id, event.message.from.id))
+				GetChatMember(event.message.chat.id, event.message.from.id).unsafeExecute
 						.chatMember.canDeleteMessages
 			if (_isPrivate || _isPermission) {
-				coeur.account exec DeleteMessage(event.message.chat.id, event.message.messageId)
+				DeleteMessage(event.message.chat.id, event.message.messageId).unsafeExecute
 			}
 		
-		} else coeur.account exec SendSticker(
+		} else SendSticker(
 			event.message.chat.id,
 			TelegramStickers ID_403
-		).replyToMessageId(event.message.messageId)
+		).replyToMessageId(event.message.messageId).unsafeExecute
 		
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/core/bot/command/MornyHellos.scala

@@ -5,13 +5,15 @@ import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ITelegramCommand}
 import cc.sukazyo.cono.morny.core.bot.api.ICommandAlias.ListedAlias
 import cc.sukazyo.cono.morny.data.TelegramStickers
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.request.SendSticker
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.language.postfixOps
 
 class MornyHellos (using coeur: MornyCoeur) {
+	private given TelegramBot = coeur.account
 	
 	object On extends ITelegramCommand {
 		
@@ -21,10 +23,11 @@ class MornyHellos (using coeur: MornyCoeur) {
 		override val description: String = "检查是否在线"
 		
 		override def execute (using command: InputCommand, event: Update): Unit =
-			coeur.account exec SendSticker(
+			SendSticker(
 				event.message.chat.id,
 				TelegramStickers ID_ONLINE_STATUS_RETURN
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 		
 	}
 	
@@ -36,10 +39,11 @@ class MornyHellos (using coeur: MornyCoeur) {
 		override val description: String = "打招呼"
 		
 		override def execute (using command: InputCommand, event: Update): Unit =
-			coeur.account exec SendSticker(
+			SendSticker(
 				event.message.chat.id,
 				TelegramStickers ID_HELLO
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 		
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/core/bot/command/MornyInfoOnStart.scala

@@ -4,21 +4,21 @@ import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ISimpleCommand}
 import cc.sukazyo.cono.morny.data.MornyInformation.{getAboutPic, getMornyAboutLinksHTML}
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.SendPhoto
-
-import scala.language.postfixOps
+import com.pengrad.telegrambot.TelegramBot
 
 class MornyInfoOnStart (using coeur: MornyCoeur) extends ISimpleCommand {
+	private given TelegramBot = coeur.account
 	
 	override val name: String = "start"
 	override val aliases: List[ICommandAlias] = Nil
 	
 	override def execute (using command: InputCommand, event: Update): Unit = {
 		
-		coeur.account exec new SendPhoto(
+		SendPhoto(
 			event.message.chat.id,
 			getAboutPic
 		).caption(
@@ -32,6 +32,7 @@ class MornyInfoOnStart (using coeur: MornyCoeur) extends ISimpleCommand {
 			   |（你可以随时通过 /info 重新获得这些信息）"""
 			.stripMargin
 		).parseMode(ParseMode HTML)
+			.unsafeExecute
 		
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/core/bot/command/MornyInformation.scala

@@ -8,16 +8,16 @@ import cc.sukazyo.cono.morny.reporter.MornyReport
 import cc.sukazyo.cono.morny.util.CommonFormat.{formatDate, formatDuration}
 import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramParseEscape.escapeHtml as h
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.{SendMessage, SendPhoto, SendSticker}
+import com.pengrad.telegrambot.TelegramBot
 
 import java.lang.System
-import scala.language.postfixOps
-
 // todo: maybe move some utils method outside
 class MornyInformation (using coeur: MornyCoeur) extends ITelegramCommand {
+	private given TelegramBot = coeur.account
 	
 	private case object Subs {
 		val STICKERS = "stickers"
@@ -43,7 +43,7 @@ class MornyInformation (using coeur: MornyCoeur) extends ITelegramCommand {
 		val action: String = command.args(0)
 		
 		action match {
-			case s if s startsWith Subs.STICKERS => echoStickers
+			case s if s `startsWith` Subs.STICKERS => echoStickers
 			case Subs.RUNTIME => echoRuntime
 			case Subs.VERSION | Subs.VERSION_2 => echoVersion
 			case Subs.TASKS => echoTasksStatus
@@ -54,7 +54,7 @@ class MornyInformation (using coeur: MornyCoeur) extends ITelegramCommand {
 	}
 	
 	private def echoInfo (chatId: Long, replyTo: Int): Unit = {
-		coeur.account exec new SendPhoto(
+		SendPhoto(
 			chatId,
 			getAboutPic
 		).caption(
@@ -64,6 +64,7 @@ class MornyInformation (using coeur: MornyCoeur) extends ITelegramCommand {
 			   |$getMornyAboutLinksHTML"""
 					.stripMargin
 		).parseMode(ParseMode HTML).replyToMessageId(replyTo)
+			.unsafeExecute
 	}
 	
 	private def echoStickers (using command: InputCommand, event: Update): Unit = {
@@ -73,8 +74,8 @@ class MornyInformation (using coeur: MornyCoeur) extends ITelegramCommand {
 				else if (command.args.length == 2) command.args(1)
 				else null
 			} else if (command.args.length == 1) {
-				if ((command.args(0) startsWith s"${Subs.STICKERS}.") || (command.args(0) startsWith s"${Subs.STICKERS}#")) {
-					command.args(0) substring Subs.STICKERS.length+1
+				if ((command.args(0) `startsWith` s"${Subs.STICKERS}.") || (command.args(0) `startsWith` s"${Subs.STICKERS}#")) {
+					command.args(0) `substring` Subs.STICKERS.length+1
 				} else null
 			} else null
 		if (mid == null) echo404
@@ -87,7 +88,7 @@ class MornyInformation (using coeur: MornyCoeur) extends ITelegramCommand {
 			echoSticker(_key, _file_id)
 		else {
 			try {
-				val sticker = TelegramStickers getById mid
+				val sticker = TelegramStickers `getById` mid
 				echoSticker(sticker.getKey, sticker.getValue)
 			} catch case _: NoSuchFieldException => {
 				echo404
@@ -99,15 +100,15 @@ class MornyInformation (using coeur: MornyCoeur) extends ITelegramCommand {
 		val send_mid = SendMessage(send_chat, mid)
 		val send_sticker = SendSticker(send_chat, file_id)
 		if (send_replyTo != -1) send_mid.replyToMessageId(send_replyTo)
-		val result_send_mid = coeur.account exec send_mid
+		val result_send_mid = send_mid.unsafeExecute
 		send_sticker.replyToMessageId(result_send_mid.message.messageId)
-		coeur.account exec send_sticker
+		send_sticker.unsafeExecute
 	}
 	
 	private[command] def echoVersion (using event: Update): Unit = {
 		val versionDeltaHTML = MornySystem.VERSION_DELTA match {case Some(d) => s"-δ<code>${h(d)}</code>" case None => ""}
 		val versionGitHTML = if (MornySystem.GIT_COMMIT nonEmpty) s"git $getVersionGitTagHTML" else ""
-		coeur.account exec new SendMessage(
+		SendMessage(
 			event.message.chat.id,
 			// language=html
 			s"""version:
@@ -120,11 +121,12 @@ class MornyInformation (using coeur: MornyCoeur) extends ITelegramCommand {
 			   |- <code>${h(formatDate(MornySystem.CODE_TIMESTAMP, 0))} [UTC]</code>
 			   |""".stripMargin
 		).replyToMessageId(event.message.messageId).parseMode(ParseMode HTML)
+			.unsafeExecute
 	}
 	
 	private[command] def echoRuntime (using event: Update): Unit = {
 		def sysprop (p: String): String = System.getProperty(p)
-		coeur.account exec new SendMessage(
+		SendMessage(
 			event.message.chat.id,
 			/* language=html */
 			s"""system:
@@ -148,11 +150,12 @@ class MornyInformation (using coeur: MornyCoeur) extends ITelegramCommand {
 			   |- [<code>${coeur.coeurStartTimestamp}</code>]"""
 			.stripMargin
 		).parseMode(ParseMode HTML).replyToMessageId(event.message.messageId)
+			.unsafeExecute
 	}
 	
 	private def echoTasksStatus (using update: Update): Unit = {
 //		if !coeur.trusted.isTrusted(update.message.from.id) then return;
-		coeur.account exec SendMessage(
+		SendMessage(
 			update.message.chat.id,
 			// language=html
 			s"""<b>Coeur Task Scheduler:</b>
@@ -161,26 +164,29 @@ class MornyInformation (using coeur: MornyCoeur) extends ITelegramCommand {
 			   | - <i>current runner status</i>: <code>${coeur.tasks.runnerState}</code>
 			   |""".stripMargin
 		).parseMode(ParseMode.HTML).replyToMessageId(update.message.messageId)
+			.unsafeExecute
 	}
 	
 	private def echoEventStatistics (using update: Update): Unit = {
 		coeur.externalContext >> { (reporter: MornyReport) =>
-			coeur.account exec SendMessage(
+			SendMessage(
 				update.message.chat.id,
 				// language=html
 				s"""<b>Event Statistics :</b>
 				   |in today
 				   |${reporter.EventStatistics.eventStatisticsHTML}""".stripMargin
 			).parseMode(ParseMode.HTML).replyToMessageId(update.message.messageId)
+				.unsafeExecute
 		} || {
 			echo404
 		}
 	}
 	
 	private def echo404 (using event: Update): Unit =
-		coeur.account exec new SendSticker(
+		SendSticker(
 			event.message.chat.id,
 			TelegramStickers ID_404
 		).replyToMessageId(event.message.messageId)
+			.unsafeExecute
 	
 }

src/main/scala/cc/sukazyo/cono/morny/core/bot/command/MornyManagers.scala

@@ -8,13 +8,13 @@ import cc.sukazyo.cono.morny.data.TelegramStickers
 import cc.sukazyo.cono.morny.reporter.MornyReport
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
 import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramFormatter.*
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.request.SendSticker
-
-import scala.language.postfixOps
+import com.pengrad.telegrambot.TelegramBot
 
 class MornyManagers (using coeur: MornyCoeur) {
+	private given TelegramBot = coeur.account
 	
 	object Exit extends ITelegramCommand {
 		
@@ -27,22 +27,24 @@ class MornyManagers (using coeur: MornyCoeur) {
 			
 			val user = event.message.from
 			
-			if (coeur.trusted isTrusted user.id) {
+			if (coeur.trusted isTrust user) {
 				
-				coeur.account exec SendSticker(
+				SendSticker(
 					event.message.chat.id,
 					TelegramStickers ID_EXIT
 				).replyToMessageId(event.message.messageId)
-				logger attention s"Morny exited by user ${user toLogTag}"
+					.unsafeExecute
+				logger `attention` s"Morny exited by user ${user toLogTag}"
 				coeur.exit(0, user)
 				
 			} else {
 				
-				coeur.account exec SendSticker(
+				SendSticker(
 					event.message.chat.id,
 					TelegramStickers ID_403
 				).replyToMessageId(event.message.messageId)
-				logger attention s"403 exit caught from user ${user toLogTag}"
+					.unsafeExecute
+				logger `attention` s"403 exit caught from user ${user toLogTag}"
 				coeur.externalContext.consume[MornyReport](_.unauthenticatedAction("/exit", user))
 				
 			}
@@ -62,22 +64,24 @@ class MornyManagers (using coeur: MornyCoeur) {
 			
 			val user = event.message.from
 			
-			if (coeur.trusted isTrusted user.id) {
+			if (coeur.trusted isTrust user) {
 				
-				logger attention s"call save from command by ${user toLogTag}"
+				logger `attention` s"call save from command by ${user toLogTag}"
 				coeur.saveDataAll()
-				coeur.account exec SendSticker(
+				SendSticker(
 					event.message.chat.id,
 					TelegramStickers ID_SAVED
 				).replyToMessageId(event.message.messageId)
+					.unsafeExecute
 				
 			} else {
 				
-				coeur.account exec SendSticker(
+				SendSticker(
 					event.message.chat.id,
 					TelegramStickers ID_403
 				).replyToMessageId(event.message.messageId)
-				logger attention s"403 save caught from user ${user toLogTag}"
+					.unsafeExecute
+				logger `attention` s"403 save caught from user ${user toLogTag}"
 				coeur.externalContext.consume[MornyReport](_.unauthenticatedAction("/save", user))
 				
 			}

src/main/scala/cc/sukazyo/cono/morny/core/bot/event/MornyOnInlineQuery.scala

@@ -2,35 +2,38 @@ package cc.sukazyo.cono.morny.core.bot.event
 
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{EventEnv, EventListener, InlineQueryUnit, MornyQueryManager}
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.request.InlineQueryResult
 import com.pengrad.telegrambot.request.AnswerInlineQuery
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.collection.mutable.ListBuffer
-import scala.language.postfixOps
 import scala.reflect.ClassTag
 
 class MornyOnInlineQuery (using queryManager: MornyQueryManager) (using coeur: MornyCoeur) extends EventListener {
+	private given TelegramBot = coeur.account
 	
 	override def onInlineQuery (using event: EventEnv): Unit = {
 		import event.update
 		
-		val results: List[InlineQueryUnit[_]] = queryManager query update
+		val results: List[InlineQueryUnit[?]] = queryManager `query` update
 		
 		var cacheTime = Int.MaxValue
 		var isPersonal = InlineQueryUnit.defaults.IS_PERSONAL
-		val resultAnswers = ListBuffer[InlineQueryResult[_]]()
+		val resultAnswers = ListBuffer[InlineQueryResult[?]]()
 		for (r <- results) {
 			if (cacheTime > r.cacheTime) cacheTime = r.cacheTime
 			if (r isPersonal) isPersonal = true
 			resultAnswers += r.result
 		}
 		
-		if (results isEmpty) return;
+		if (results isEmpty) return
 		
-		coeur.account exec AnswerInlineQuery(
-			update.inlineQuery.id, resultAnswers toArray:_*
+		AnswerInlineQuery(
+			update.inlineQuery.id,
+			(resultAnswers toArray)*
 		).cacheTime(cacheTime).isPersonal(isPersonal)
+			.unsafeExecute
 		
 		event.setEventOk
 		

src/main/scala/cc/sukazyo/cono/morny/core/bot/event/MornyOnTelegramCommand.scala

@@ -14,21 +14,21 @@ class MornyOnTelegramCommand (using commandManager: MornyCommandManager) (using
 		
 		def _isCommandMessage(message: Message): Boolean =
 			if message.text eq null then false
-			else if !(message.text startsWith "/") then false
-			else if message.text startsWith "/ " then false
+			else if !(message.text `startsWith` "/") then false
+			else if message.text `startsWith` "/ " then false
 			else true
 		
 		if !_isCommandMessage(update.message) then return
 		val inputCommand = InputCommand(update.message.text drop 1)
 		givenCxt << inputCommand
-		logger trace ":provided InputCommand for event"
+		logger `trace` ":provided InputCommand for event"
 		
-		if (!(inputCommand.command matches "^\\w+$"))
-			logger debug "not command"
+		if (!(inputCommand.command `matches` "^\\w+$"))
+			logger `debug` "not command"
 		else if ((inputCommand.target ne null) && (inputCommand.target != coeur.username))
-			logger debug "not morny command"
+			logger `debug` "not morny command"
 		else
-			logger debug "is command"
+			logger `debug` "is command"
 			if commandManager.execute(using inputCommand) then
 				setEventOk
 		

src/main/scala/cc/sukazyo/cono/morny/core/bot/event/MornyOnUpdateTimestampOffsetLock.scala

@@ -20,7 +20,7 @@ class MornyOnUpdateTimestampOffsetLock (using coeur: MornyCoeur) extends EventLi
 	override def on (using event: EventEnv): Unit =
 		event.update.sourceTime match
 			case Some(timestamp) =>
-				if coeur.config.eventIgnoreOutdated && (EpochMillis.fromEpochSeconds(timestamp) < coeur.coeurStartTimestamp) then
+				if coeur.config.eventIgnoreOutdated && ((EpochMillis fromSeconds timestamp) < coeur.coeurStartTimestamp) then
 					event.setEventCanceled
 			case None =>
 	

src/main/scala/cc/sukazyo/cono/morny/core/http/api/HttpService4Api.scala

@@ -1,7 +1,7 @@
 package cc.sukazyo.cono.morny.core.http.api
 
 import cats.effect.IO
-import cc.sukazyo.cono.morny.core.Log.exceptionLog
+import cc.sukazyo.cono.morny.util.UseThrowable.toLogString
 import org.http4s.{HttpRoutes, Response}
 
 trait HttpService4Api {
@@ -13,7 +13,7 @@ trait HttpService4Api {
 			response.setMornyInternalErrorHeader(
 				e.getClass.getSimpleName,
 				e.getMessage,
-				exceptionLog(e)
+				e.toLogString
 			)
 		def setMornyInternalErrorHeader (
 			`Morny-Internal-Error-Type`: String,

src/main/scala/cc/sukazyo/cono/morny/core/http/api/MornyHttpServerContext.scala

@@ -2,6 +2,8 @@ package cc.sukazyo.cono.morny.core.http.api
 
 trait MornyHttpServerContext {
 	
+	infix def register4API (service: HttpService4Api): Unit
+	
 	def register4API (service: HttpService4Api*): Unit
 	
 	def start: HttpServer

src/main/scala/cc/sukazyo/cono/morny/core/http/internal/MornyHttpServerContextImpl.scala

@@ -3,7 +3,8 @@ package cc.sukazyo.cono.morny.core.http.internal
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.http.api.{HttpServer, HttpService4Api, MornyHttpServerContext}
 import cc.sukazyo.cono.morny.core.http.ServiceUI
-import cc.sukazyo.cono.morny.core.Log.{exceptionLog, logger}
+import cc.sukazyo.cono.morny.core.Log.logger
+import cc.sukazyo.cono.morny.util.UseThrowable.toLogString
 
 import scala.collection.mutable
 
@@ -13,6 +14,9 @@ class MornyHttpServerContextImpl (using coeur: MornyCoeur) extends MornyHttpServ
 	
 	private lazy val service_ui = ServiceUI()
 	
+	override infix def register4API (service: HttpService4Api): Unit =
+		services_api += service
+	
 	override def register4API (services: HttpService4Api*): Unit =
 		services_api ++= services
 	
@@ -31,9 +35,9 @@ class MornyHttpServerContextImpl (using coeur: MornyCoeur) extends MornyHttpServ
 		
 		def errorHandler (t: Throwable, message: =>String): OptionT[IO, Unit] =
 			OptionT.liftF(IO {
-				logger error
+				logger `error`
 					s"""Unexpected exception occurred on Morny Http Server :
-					   |${exceptionLog(t)}""".stripMargin
+					   |${t.toLogString}""".stripMargin
 			})
 		val withErrorHandler = ErrorHandling.Recover.total(
 			ErrorAction.log(
@@ -49,7 +53,7 @@ class MornyHttpServerContextImpl (using coeur: MornyCoeur) extends MornyHttpServ
 			.resource
 		val (_server, _shutdown_io) = server.allocated.unsafeRunSync() match
 			case (_1, _2) => (_1, _2)
-		logger notice s"Morny HTTP Server started at ${_server.baseUri}"
+		logger `notice` s"Morny HTTP Server started at ${_server.baseUri}"
 		
 		new HttpServer(using global):
 			val server: Server = _server

src/main/scala/cc/sukazyo/cono/morny/core/internal/logging/MornyFormatterConsole.scala

@@ -5,9 +5,6 @@ import cc.sukazyo.cono.morny.util.CommonFormat.formatDate
 import cc.sukazyo.messiva.formatter.ILogFormatter
 import cc.sukazyo.messiva.log.Log
 
-import java.time.{ZoneId, ZoneOffset}
-import java.util.TimeZone
-
 class MornyFormatterConsole extends ILogFormatter {
 	
 	override def format (log: Log): String =

src/main/scala/cc/sukazyo/cono/morny/core/internal/logging/MornyLoggerBase.scala

@@ -8,7 +8,7 @@ class MornyLoggerBase extends Logger with IMornyLogLevelImpl {
 	
 	def this (appends: IAppender*) =
 		this()
-		this.appends.addAll(java.util.List.of(appends:_*))
+		this.appends.addAll(java.util.List.of(appends*))
 	
 	override def notice (message: String): Unit =
 		pushToAllAppender(Log(1, new Message(message), MornyLogLevels.NOTICE))

src/main/scala/cc/sukazyo/cono/morny/data/MornyInformation.scala

@@ -13,7 +13,7 @@ object MornyInformation {
 			case None => ""
 			case Some(commit) =>
 				val g = StringBuilder()
-				val cm = commit substring(0, 8)
+				val cm = commit.substring(0, 8)
 				val cp = MornySystem.currentCodePath
 				if (cp == null) g ++= s"<code>$cm</code>"
 				else g ++= s"<a href='$cp'>$cm</a>"

src/main/scala/cc/sukazyo/cono/morny/data/TelegramImages.scala

@@ -20,7 +20,7 @@ object TelegramImages {
 		
 		@throws[AssetsException]
 		private def read (): Unit = {
-			Using ((MornyAssets.pack getResource assetsPath)read) { stream =>
+			Using ((MornyAssets.pack `getResource` assetsPath)read) { stream =>
 				try { this.cache = Some(stream.readAllBytes()) }
 				catch case e: IOException => {
 					throw AssetsException(e)

src/main/scala/cc/sukazyo/cono/morny/encrypt_tool/Encryptor.scala

@@ -10,18 +10,20 @@ import cc.sukazyo.cono.morny.util.tgapi.InputCommand
 import cc.sukazyo.cono.morny.util.CommonEncrypt
 import cc.sukazyo.cono.morny.util.CommonEncrypt.*
 import cc.sukazyo.cono.morny.util.ConvertByteHex.toHex
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.File.getContent
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.{PhotoSize, Update}
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.{GetFile, SendDocument, SendMessage, SendSticker}
+import com.pengrad.telegrambot.TelegramBot
 
 import java.io.IOException
 import java.net.{URLDecoder, URLEncoder}
 import java.util.Base64
-import scala.language.postfixOps
 
 /** Provides Telegram Command __`/encrypt`__. */
 class Encryptor (using coeur: MornyCoeur) extends ITelegramCommand {
+	private given TelegramBot = coeur.account
 	
 	override val name: String = "encrypt"
 	override val aliases: List[ICommandAlias] = ListedAlias("enc") :: Nil
@@ -33,7 +35,7 @@ class Encryptor (using coeur: MornyCoeur) extends ITelegramCommand {
 		val args = command.args
 		
 		// show a simple help page
-		if ((args isEmpty) || ((args(0) equals "l") && (args.length == 1)))
+		if ((args isEmpty) || ((args(0) `equals` "l") && (args.length == 1)))
 			echoHelp(event.message.chat.id, event.message.messageId)
 			return
 		
@@ -45,17 +47,18 @@ class Encryptor (using coeur: MornyCoeur) extends ITelegramCommand {
         // so the algorithm will be and must be in the 2nd arg.
 		/** inner function: is input `arg` means mod-param ''uppercase'' */
 		def _is_mod_u(arg: String): Boolean =
-			if (arg equalsIgnoreCase "uppercase") return true
-			if (arg equalsIgnoreCase "u") return true
-			if (arg equalsIgnoreCase "upper") return true
+			if (arg `equalsIgnoreCase` "uppercase") return true
+			if (arg `equalsIgnoreCase` "u") return true
+			if (arg `equalsIgnoreCase` "upper") return true
 			false
 		val mod_uppercase = if (args.length > 1) {
 			if (args.length < 3 && _is_mod_u(args(1))) true
 			else
-				coeur.account exec SendSticker(
+				SendSticker(
 					event.message.chat.id,
 					TelegramStickers ID_404
 				).replyToMessageId(event.message.messageId)
+					.unsafeExecute
 				return
 		} else false
 		
@@ -73,15 +76,16 @@ class Encryptor (using coeur: MornyCoeur) extends ITelegramCommand {
 			val asByteArray: Array[Byte] = data
 		/** inner class: the [[XEncryptable]] implementation of [[String]] data */
 		case class XText (data: String) extends XEncryptable:
-			 val asByteArray: Array[Byte] = data getBytes CommonEncrypt.ENCRYPT_STANDARD_CHARSET
+			 val asByteArray: Array[Byte] = data.getBytes(CommonEncrypt.ENCRYPT_STANDARD_CHARSET)
 		val input: XEncryptable =
 			val _r = event.message.replyToMessage
 			if ((_r ne null) && (_r.document ne null)) {
 				try {XFile(
-					coeur.account getFileContent (coeur.account exec GetFile(_r.document.fileId)).file,
+					GetFile(_r.document.fileId).unsafeExecute
+						.file.getContent,
 					_r.document.fileName
 				)} catch case e: IOException =>
-					logger warn s"NetworkRequest error: TelegramFileAPI:\n\t${e.getMessage}"
+					logger `warn` s"NetworkRequest error: TelegramFileAPI:\n\t${e.getMessage}"
 					coeur.externalContext.consume[MornyReport](_.exception(e, "NetworkRequest error: TelegramFileAPI"))
 					return
 			} else if ((_r ne null) && (_r.photo ne null)) {
@@ -96,26 +100,28 @@ class Encryptor (using coeur: MornyCoeur) extends ITelegramCommand {
 					if (_photo_origin eq null) throw IllegalArgumentException("no photo from api.")
 					import cc.sukazyo.cono.morny.util.UseRandom.rand_id
 					XFile(
-						coeur.account getFileContent (coeur.account exec GetFile(_photo_origin.fileId)).file,
+						GetFile(_photo_origin.fileId).unsafeExecute
+							.file.getContent,
 						s"photo$rand_id.png"
 					)
 				} catch
 					case e: IOException =>
 						//noinspection DuplicatedCode
-						logger warn s"NetworkRequest error: TelegramFileAPI:\n\t${e.getMessage}"
+						logger `warn` s"NetworkRequest error: TelegramFileAPI:\n\t${e.getMessage}"
 						coeur.externalContext.consume[MornyReport](_.exception(e, "NetworkRequest error: TelegramFileAPI"))
 						return
 					case e: IllegalArgumentException =>
-						logger warn s"FileProcess error: PhotoSize:\n\t${e.getMessage}"
+						logger `warn` s"FileProcess error: PhotoSize:\n\t${e.getMessage}"
 						coeur.externalContext.consume[MornyReport](_.exception(e, "FileProcess error: PhotoSize"))
 						return
 			} else if ((_r ne null) && (_r.text ne null)) {
 				XText(_r.text)
 			} else {
-				coeur.account exec SendMessage(
+				SendMessage(
 					event.message.chat.id,
 					"<i><u>null</u></i>"
 				).parseMode(ParseMode HTML).replyToMessageId(event.message.messageId)
+					.unsafeExecute
 				return
 			}
 		// END BLOCK: get input
@@ -141,14 +147,15 @@ class Encryptor (using coeur: MornyCoeur) extends ITelegramCommand {
 			EXHash(if mod_uppercase then hashed toUpperCase else hashed)
 		//noinspection UnitMethodIsParameterless
 		def echo_unsupported: Unit =
-			coeur.account exec SendSticker(
+			SendSticker(
 				event.message.chat.id,
 				TelegramStickers ID_404
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 		val result: EXHash|EXFile|EXText = args(0) match
 			case "base64" | "b64" | "base64url" | "base64u" | "b64u" =>
 				val _tool_b64 =
-					if args(0) contains "u" then Base64.getUrlEncoder
+					if args(0) `contains` "u" then Base64.getUrlEncoder
 					else Base64.getEncoder
 				genResult_encrypt(
 					input,
@@ -157,7 +164,7 @@ class Encryptor (using coeur: MornyCoeur) extends ITelegramCommand {
 				)
 			case "base64decode" | "base64d" | "b64d" | "base64url-decode" | "base64ud" | "b64ud" =>
 				val _tool_b64d =
-					if args(0) contains "u" then Base64.getUrlDecoder
+					if args(0) `contains` "u" then Base64.getUrlDecoder
 					else Base64.getDecoder
 				try { genResult_encrypt(
 					input,
@@ -190,17 +197,19 @@ class Encryptor (using coeur: MornyCoeur) extends ITelegramCommand {
 		// output
 		result match
 			case _file: EXFile =>
-				coeur.account exec SendDocument(
+				SendDocument(
 					event.message.chat.id,
 					_file.result
 				).fileName(_file.resultName).replyToMessageId(event.message.messageId)
+					.unsafeExecute
 			case _text: EXTextLike =>
 				import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramParseEscape.escapeHtml as h
-				coeur.account exec SendMessage(
+				SendMessage(
 					event.message.chat.id,
 					// language=html
 					s"<pre><code>${h(_text.text)}</code></pre>"
 				).parseMode(ParseMode HTML).replyToMessageId(event.message.messageId)
+					.unsafeExecute
 		
 	}
 	
@@ -231,7 +240,7 @@ class Encryptor (using coeur: MornyCoeur) extends ITelegramCommand {
 	  * </blockquote>
 	  */
 	private def echoHelp(chat: Long, replyTo: Int): Unit =
-		coeur.account exec SendMessage(
+		SendMessage(
 			chat,
 			s"""<b><u>base64</u></b>, b64
 			   |<b><u>base64url</u></b>, base64u, b64u
@@ -247,5 +256,6 @@ class Encryptor (using coeur: MornyCoeur) extends ITelegramCommand {
 			   |<b><i>uppercase</i></b>, upper, u <i>(sha1/sha256/sha512/md5 only)</i>"""
 			.stripMargin
 		).replyToMessageId(replyTo).parseMode(ParseMode HTML)
+			.unsafeExecute
 	
 }

src/main/scala/cc/sukazyo/cono/morny/ip186/BotCommand.scala

@@ -3,14 +3,16 @@ package cc.sukazyo.cono.morny.ip186
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ITelegramCommand}
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.SendMessage
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.language.postfixOps
 
 class BotCommand (using coeur: MornyCoeur) {
+	private given TelegramBot = coeur.account
 	
 	private enum Subs (val cmd: String):
 		case IP extends Subs("ip")
@@ -35,18 +37,20 @@ class BotCommand (using coeur: MornyCoeur) {
 			if (command.args isEmpty)
 				if event.message.replyToMessage eq null then null else event.message.replyToMessage.text
 			else if (command.args.length > 1)
-				coeur.account exec SendMessage(
+				SendMessage(
 					event.message.chat.id,
 					"[Unavailable] Too much arguments."
 				).replyToMessageId(event.message.messageId)
+					.unsafeExecute
 				return
 			else command.args(0)
 		
 		if (target eq null)
-			coeur.account exec new SendMessage(
+			SendMessage(
 				event.message.chat.id,
 				"[Unavailable] No ip defined."
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 			return;
 		
 		
@@ -58,20 +62,22 @@ class BotCommand (using coeur: MornyCoeur) {
 				case Subs.WHOIS.cmd => IP186QueryHandler.query_whoisPretty(target)
 				case _ => throw IllegalArgumentException(s"Unknown 186-IP query method ${command.command}")
 			
-			coeur.account exec SendMessage(
+			SendMessage(
 				event.message.chat.id,
 				s"""${h(response.url)}
 				   |<code>${h(response.body)}</code>"""
 				.stripMargin
 			).parseMode(ParseMode HTML).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 			
 		} catch case e: Exception =>
-			coeur.account exec new SendMessage(
+			SendMessage(
 				event.message().chat().id(),
 				s"""[Exception] in query:
 				   |<code>${h(e.getMessage)}</code>"""
 				.stripMargin
 			).parseMode(ParseMode.HTML).replyToMessageId(event.message().messageId())
+				.unsafeExecute
 		
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/ip186/IP186QueryHandler.scala

@@ -28,7 +28,7 @@ object IP186QueryHandler {
 	@throws[IOException]
 	def query_whoisPretty (domain: String): IP186Response =
 		val raw = query_whois(domain)
-		IP186Response(raw.url, raw.body substring(0, (raw.body indexOf "<<<")+3))
+		IP186Response(raw.url, raw.body `substring`(0, (raw.body `indexOf` "<<<")+3))
 	
 	@throws[IOException]
 	private def commonQuery (requestPath: Uri): IP186Response = {

src/main/scala/cc/sukazyo/cono/morny/medication_timer/MedicationTimer.scala

@@ -4,7 +4,7 @@ import cc.sukazyo.cono.morny.core.Log.logger
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.medication_timer.MedicationTimer.calcNextRoutineTimestamp
 import cc.sukazyo.cono.morny.util.schedule.RoutineTask
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import cc.sukazyo.cono.morny.util.CommonFormat
 import cc.sukazyo.cono.morny.util.EpochDateTime.EpochMillis
 import com.cronutils.builder.CronBuilder
@@ -13,12 +13,14 @@ import com.cronutils.model.time.ExecutionTime
 import com.pengrad.telegrambot.model.{Message, MessageEntity}
 import com.pengrad.telegrambot.request.{EditMessageText, SendMessage}
 import com.pengrad.telegrambot.response.SendResponse
+import com.pengrad.telegrambot.TelegramBot
 
 import java.time.{Instant, ZonedDateTime, ZoneOffset}
 import scala.collection.mutable.ArrayBuffer
 import scala.language.implicitConversions
 
 class MedicationTimer (using coeur: MornyCoeur) {
+	private given TelegramBot = coeur.account
 	
 	private val NOTIFY_MESSAGE = "🍥⏲"
 	private val DAEMON_THREAD_NAME_DEF = "MedicationTimer"
@@ -36,7 +38,7 @@ class MedicationTimer (using coeur: MornyCoeur) {
 		
 		def calcNextSendTime: EpochMillis =
 			val next_time = calcNextRoutineTimestamp(System.currentTimeMillis, use_timeZone, notify_atHour)
-			logger info s"medication timer will send next notify at ${CommonFormat.formatDate(next_time, use_timeZone.getTotalSeconds / 60 / 60)} with $use_timeZone [$next_time]"
+			logger `info` s"medication timer will send next notify at ${CommonFormat.formatDate(next_time, use_timeZone.getTotalSeconds / 60 / 60)} with $use_timeZone [$next_time]"
 			next_time
 		
 		override def firstRoutineTimeMillis: EpochMillis =
@@ -47,24 +49,24 @@ class MedicationTimer (using coeur: MornyCoeur) {
 		
 		override def main: Unit = {
 			sendNotification()
-			logger info "medication notify sent."
+			logger `info` "medication notify sent."
 		}
 		
 	}
 	
 	def start(): Unit =
 		if ((notify_toChat == -1) || (notify_atHour isEmpty))
-			logger notice "Medication Timer disabled : related param is not complete set"
+			logger `notice` "Medication Timer disabled : related param is not complete set"
 			return;
 		coeur.tasks ++ scheduleTask
-		logger notice "Medication Timer started."
+		logger `notice` "Medication Timer started."
 	
 	def stop(): Unit =
 		coeur.tasks % scheduleTask
-		logger notice "Medication Timer stopped."
+		logger `notice` "Medication Timer stopped."
 	
 	private def sendNotification(): Unit = {
-		val sendResponse: SendResponse = coeur.account exec SendMessage(notify_toChat, NOTIFY_MESSAGE)
+		val sendResponse: SendResponse = SendMessage(notify_toChat, NOTIFY_MESSAGE).unsafeExecute
 		if sendResponse isOk then lastNotify_messageId = Some(sendResponse.message.messageId)
 		else lastNotify_messageId = None
 	}
@@ -76,11 +78,11 @@ class MedicationTimer (using coeur: MornyCoeur) {
 		val entities = ArrayBuffer.empty[MessageEntity]
 		if edited.entities ne null then entities ++= edited.entities
 		entities += MessageEntity(MessageEntity.Type.italic, edited.text.length + "\n-- ".length, editTime.length)
-		coeur.account exec EditMessageText(
+		EditMessageText(
 			notify_toChat,
 			edited.messageId,
 			edited.text + s"\n-- $editTime --"
-		).entities(entities toArray:_*)
+		).entities((entities toArray)*).unsafeExecute
 		lastNotify_messageId = None
 		true
 	}
@@ -105,7 +107,7 @@ object MedicationTimer {
 			}))
 			.instance
 		).nextExecution(
-			ZonedDateTime ofInstant (Instant ofEpochMilli baseTimeMillis, zone.normalized)
+			ZonedDateTime `ofInstant` (Instant `ofEpochMilli` baseTimeMillis, zone.normalized)
 		).get.toInstant.toEpochMilli
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/medication_timer/ModuleMedicationTimer.scala

@@ -27,7 +27,7 @@ class ModuleMedicationTimer extends MornyInternalModule {
 		externalContext >> { (instance: MedicationTimer) =>
 			eventManager register OnMedicationNotifyApply(using instance)
 		} || {
-			logger warn "There seems no Medication Timer instance is provided; skipped register events for it."
+			logger `warn` "There seems no Medication Timer instance is provided; skipped register events for it."
 		}
 		
 	}
@@ -38,7 +38,7 @@ class ModuleMedicationTimer extends MornyInternalModule {
 		externalContext >> { (instance: MedicationTimer) =>
 			instance.start()
 		} || {
-			logger warn "There seems no Medication Timer instance is provided; skipped start it."
+			logger `warn` "There seems no Medication Timer instance is provided; skipped start it."
 		}
 		
 	}
@@ -49,7 +49,7 @@ class ModuleMedicationTimer extends MornyInternalModule {
 		externalContext >> { (instance: MedicationTimer) =>
 			instance.stop()
 		} || {
-			logger warn "There seems no Medication Timer instance need to be stop."
+			logger `warn` "There seems no Medication Timer instance need to be stop."
 		}
 		
 	}

src/main/scala/cc/sukazyo/cono/morny/morny_misc/MornyJrrp.scala

@@ -8,7 +8,7 @@ import scala.language.postfixOps
 object MornyJrrp {
 	
 	def jrrp_of_telegramUser (user: User, timestamp: EpochMillis): Double =
-		jrrp_v_xmomi(user.id, EpochDays fromEpochMillis timestamp) * 100.0
+		jrrp_v_xmomi(user.id, EpochDays fromMillis timestamp) * 100.0
 	
 	private def jrrp_v_xmomi (identifier: Long, dayStamp: EpochDays): Double =
 		import cc.sukazyo.cono.morny.util.CommonEncrypt.MD5

src/main/scala/cc/sukazyo/cono/morny/morny_misc/MornyOldJrrp.scala

@@ -4,12 +4,14 @@ import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ITelegramCommand}
 import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramFormatter.*
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.SendMessage
+import com.pengrad.telegrambot.TelegramBot
 
 class MornyOldJrrp (using coeur: MornyCoeur) extends ITelegramCommand {
+	private given TelegramBot = coeur.account
 	
 	override val name: String = "jrrp"
 	override val aliases: List[ICommandAlias] = Nil
@@ -26,11 +28,12 @@ class MornyOldJrrp (using coeur: MornyCoeur) extends ITelegramCommand {
 			case _ => "..."
 		
 		import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramParseEscape.escapeHtml as h
-		coeur.account exec SendMessage(
+		SendMessage(
 			event.message.chat.id,
 			// language=html
 			f"${user.fullnameRefHTML} 在(utc的)今天的运气指数是———— <code>$jrrp%.2f%%</code> ${h(ending)}"
 		).replyToMessageId(event.message.messageId).parseMode(ParseMode HTML)
+			.unsafeExecute
 		
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/morny_misc/Testing.scala

@@ -3,25 +3,28 @@ package cc.sukazyo.cono.morny.morny_misc
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ISimpleCommand}
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.SendMessage
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.language.postfixOps
 
 class Testing (using coeur: MornyCoeur) extends ISimpleCommand {
+	private given TelegramBot = coeur.account
 	
 	override val name: String = "test"
 	override val aliases: List[ICommandAlias] = Nil
 	
 	override def execute (using command: InputCommand, event: Update): Unit = {
 		
-		coeur.account exec new SendMessage(
+		SendMessage(
 			event.message.chat.id,
 			// language=html
 			"<b>Just</b> a TEST command."
 		).replyToMessageId(event.message.messageId).parseMode(ParseMode HTML)
+			.unsafeExecute
 		
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/nbnhhsh/CommandNbnhhsh.scala

@@ -6,15 +6,15 @@ import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ITelegramCommand}
 import cc.sukazyo.cono.morny.data.TelegramStickers
 import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramParseEscape.escapeHtml as h
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.{SendMessage, SendSticker}
+import com.pengrad.telegrambot.TelegramBot
 import sttp.client3.{HttpError, SttpClientException}
 
-import scala.language.postfixOps
-
 class CommandNbnhhsh (using coeur: MornyCoeur) extends ITelegramCommand {
+	private given TelegramBot = coeur.account
 	
 	private val NBNHHSH_RESULT_HEAD_HTML =
 		// language=html
@@ -33,52 +33,54 @@ class CommandNbnhhsh (using coeur: MornyCoeur) extends ITelegramCommand {
 			else if (event.message.replyToMessage != null && event.message.replyToMessage.text != null)
 				event.message.replyToMessage.text
 			else
-				coeur.account exec SendSticker(
+				SendSticker(
 					event.message.chat.id,
 					TelegramStickers ID_404
 				).replyToMessageId(event.message.messageId)
+					.unsafeExecute
 				return;
 		
 		try {
 			
-			val queryResp = NbnhhshQuery sendGuess queryTarget
+			val queryResp = NbnhhshQuery `sendGuess` queryTarget
 			
 			val message = StringBuilder(NBNHHSH_RESULT_HEAD_HTML)
 			
-			logger trace s"**nbnhhsh got len=${queryResp.words.length}"
+			logger `trace` s"**nbnhhsh got len=${queryResp.words.length}"
 			for (_word <- queryResp.words) {
-				logger trace s"**start for ${_word.name}"
+				logger `trace` s"**start for ${_word.name}"
 				val _use_trans = (_word.trans ne null) && (_word.trans nonEmpty)
 				val _use_inputting = (_word.inputting ne null) && (_word.inputting nonEmpty)
 				if (_use_trans || _use_inputting)
 					message ++= s"\n\n<b>[[ ${h(_word.name)} ]]</b>"
-					logger trace s"**used [${_word.name}]"
+					logger `trace` s"**used [${_word.name}]"
 					if (_use_trans) for (_trans <- _word.trans)
 						message ++= s"\n* <i>${h(_trans)}</i>"
-						logger trace s"**used [${_word.name}] used `${_trans}``"
+						logger `trace` s"**used [${_word.name}] used `${_trans}``"
 					if (_use_inputting)
-						logger trace s"**used [${_word.name}] inputting"
+						logger `trace` s"**used [${_word.name}] inputting"
 						if (_use_trans)
 							message += '\n'
 						message ++= " maybe:"
 						for (_inputting <- _word.inputting)
-							logger trace s"**used [${_word.name}] used-i ${_inputting}"
+							logger `trace` s"**used [${_word.name}] used-i ${_inputting}"
 							message ++= s"\n` <i>${h(_inputting)}</i>"
-				logger trace s"**done"
+				logger `trace` s"**done"
 			}
 			
-			coeur.account exec SendMessage(
+			SendMessage(
 				event.message.chat.id,
 				message toString
 			).parseMode(ParseMode HTML).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 			
 		} catch case e: (HttpError[_] | SttpClientException) => {
-			coeur.account exec SendMessage(
+			SendMessage(
 				event.message.chat.id,
 				s"""[Exception] in query:
 				   |${h(e.getMessage)}
 				   |""".stripMargin
-			)
+			).unsafeExecute
 		}
 		
 	}

src/main/scala/cc/sukazyo/cono/morny/nbnhhsh/NbnhhshQuery.scala

@@ -20,7 +20,7 @@ object NbnhhshQuery {
 	
 	private val httpClient = OkHttpSyncBackend()
 	
-	@throws[HttpError[_]|SttpClientException]
+	@throws[HttpError[?]|SttpClientException]
 	def sendGuess (text: String): GuessResult = {
 		case class GuessRequest (text: String)
 		val http = mornyBasicRequest

src/main/scala/cc/sukazyo/cono/morny/randomize_somthing/OnQuestionMarkReply.scala

@@ -3,13 +3,15 @@ package cc.sukazyo.cono.morny.randomize_somthing
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{EventEnv, EventListener}
 import cc.sukazyo.cono.morny.randomize_somthing.OnQuestionMarkReply.isAllMessageMark
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.request.SendMessage
+import com.pengrad.telegrambot.TelegramBot
 
-import scala.language.postfixOps
 import scala.util.boundary
+import scala.util.boundary.break
 
 class OnQuestionMarkReply (using coeur: MornyCoeur) extends EventListener {
+	private given TelegramBot = coeur.account
 	
 	override def onMessage (using event: EventEnv): Unit = {
 		import event.update
@@ -21,9 +23,10 @@ class OnQuestionMarkReply (using coeur: MornyCoeur) extends EventListener {
 		if (1 over 8) chance_is false then return;
 		if !isAllMessageMark(using update.message.text) then return;
 		
-		coeur.account exec SendMessage(
+		SendMessage(
 			update.message.chat.id, update.message.text
 		).replyToMessageId(update.message.messageId)
+			.unsafeExecute
 		event.setEventOk
 		
 	}
@@ -40,7 +43,7 @@ object OnQuestionMarkReply {
 		boundary[Boolean] {
 			for (c <- text)
 				if !(QUESTION_MARKS contains c) then
-					boundary break false
+					break(false)
 			true
 		}
 	}

src/main/scala/cc/sukazyo/cono/morny/randomize_somthing/OnUserRandom.scala

@@ -2,13 +2,14 @@ package cc.sukazyo.cono.morny.randomize_somthing
 
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{EventEnv, EventListener}
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.request.SendMessage
-import com.pengrad.telegrambot.response.SendResponse
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.language.postfixOps
 
 class OnUserRandom (using coeur: MornyCoeur) {
+	private given TelegramBot = coeur.account
 	
 	object RandomSelect extends EventListener {
 		
@@ -19,10 +20,10 @@ class OnUserRandom (using coeur: MornyCoeur) {
 			import event.update
 			
 			if update.message.text == null then return;
-			if !(update.message.text startsWith "/") then return
+			if !(update.message.text `startsWith` "/") then return
 			
 			import cc.sukazyo.cono.morny.util.UseRandom.rand_half
-			val query = update.message.text substring 1
+			val query = update.message.text `substring` 1
 			val result: String | Null = query match
 				case USER_OR_QUERY(_con1, _con2) =>
 					if rand_half then _con1 else _con2
@@ -34,10 +35,11 @@ class OnUserRandom (using coeur: MornyCoeur) {
 			
 			if result == null then return;
 			
-			coeur.account exec SendMessage(
+			SendMessage(
 				update.message.chat.id,
 				result
 			).replyToMessageId(update.message.messageId)
+				.unsafeExecute
 			event.setEventOk
 			
 		}
@@ -58,14 +60,15 @@ class OnUserRandom (using coeur: MornyCoeur) {
 			var result: String|Null = null
 			import cc.sukazyo.cono.morny.util.UseRandom.rand_half
 			for (k <- keywords)
-				if update.message.text endsWith k then
+				if update.message.text `endsWith` k then
 					result = if rand_half then "尊嘟" else "假嘟"
-			if result == null then return;
+			if result == null then return
 			
-			coeur.account exec SendMessage(
+			SendMessage(
 				update.message.chat.id,
 				result
 			).replyToMessageId(update.message.messageId)
+				.unsafeExecute
 			event.setEventOk
 			
 		}

src/main/scala/cc/sukazyo/cono/morny/reporter/Module.scala

@@ -27,10 +27,10 @@ class Module extends MornyInternalModule {
 		import cxt.*
 		
 		externalContext >> { (instance: MornyReport) =>
-			logger info "MornyReport will now collect your bot event statistics."
+			logger `info` "MornyReport will now collect your bot event statistics."
 			eventManager register instance.EventStatistics.EventInfoCatcher
 		} || {
-			logger warn "There seems no reporter instance is provided; skipped register events for it."
+			logger `warn` "There seems no reporter instance is provided; skipped register events for it."
 		}
 		
 	}
@@ -40,7 +40,7 @@ class Module extends MornyInternalModule {
 		externalContext >> { (instance: MornyReport) =>
 			instance.start()
 		} || {
-			logger warn "There seems no reporter instance is provided; skipped start it."
+			logger `warn` "There seems no reporter instance is provided; skipped start it."
 		}
 	}
 	
@@ -56,7 +56,7 @@ class Module extends MornyInternalModule {
 		externalContext >> { (instance: MornyReport) =>
 			instance.stop()
 		} || {
-			logger warn "There seems no reporter instance need to be stop."
+			logger `warn` "There seems no reporter instance need to be stop."
 		}
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/reporter/MornyReport.scala

@@ -1,19 +1,20 @@
 package cc.sukazyo.cono.morny.reporter
 
 import cc.sukazyo.cono.morny.core.{MornyCoeur, MornyConfig}
-import cc.sukazyo.cono.morny.core.Log.{exceptionLog, logger}
+import cc.sukazyo.cono.morny.core.Log.logger
 import cc.sukazyo.cono.morny.core.bot.api.{EventEnv, EventListener}
 import cc.sukazyo.cono.morny.data.MornyInformation.getVersionAllFullTagHTML
 import cc.sukazyo.cono.morny.util.statistics.{NumericStatistics, UniqueCounter}
 import cc.sukazyo.cono.morny.util.tgapi.event.EventRuntimeException
 import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramFormatter.*
 import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramParseEscape.escapeHtml as h
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import cc.sukazyo.cono.morny.util.EpochDateTime.DurationMillis
 import cc.sukazyo.cono.morny.util.schedule.CronTask
 import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Update.{sourceChat, sourceUser}
 import cc.sukazyo.cono.morny.util.CommonEncrypt.hashId
 import cc.sukazyo.cono.morny.util.ConvertByteHex.toHex
+import cc.sukazyo.cono.morny.util.UseThrowable.toLogString
 import com.cronutils.builder.CronBuilder
 import com.cronutils.model.Cron
 import com.cronutils.model.definition.CronDefinitionBuilder
@@ -30,25 +31,25 @@ class MornyReport (using coeur: MornyCoeur) {
 	
 	private val enabled = coeur.config.reportToChat != -1
 	if !enabled then
-		logger info "Morny Report is disabled : report chat is set to -1"
+		logger `info` "Morny Report is disabled : report chat is set to -1"
 	
 	private def executeReport[T <: BaseRequest[T, R], R<: BaseResponse] (report: T): Unit = {
 		if !enabled then return
 		try {
-			coeur.account exec report
+			report.unsafeExecute(using coeur.account)
 		} catch case e: EventRuntimeException => {
 			import EventRuntimeException.*
 			e match
 				case e: ActionFailed =>
-					logger warn
+					logger `warn`
 						s"""cannot execute report to telegram:
-						   |${exceptionLog(e) indent 4}
+						   |${e.toLogString `indent` 4}
 						   |  tg-api response:
-						   |${(e.response toString) indent 4}""".stripMargin
+						   |${(e.response toString) `indent` 4}""".stripMargin
 				case e: ClientFailed =>
-					logger error
+					logger `error`
 						s"""failed when report to telegram:
-						   |${exceptionLog(e.getCause) indent 4}
+						   |${e.getCause.toLogString `indent` 4}
 						   |""".stripMargin
 		}
 	}
@@ -69,7 +70,7 @@ class MornyReport (using coeur: MornyCoeur) {
 			// language=html
 			s"""<b>▌Coeur Unexpected Exception </b>
 			   |${if description ne null then h(description)+"\n" else ""}
-			   |<pre><code class="language-log">${h(exceptionLog(e))}</code></pre>$_tgErrFormat"""
+			   |<pre><code class="language-log">${h(e.toLogString)}</code></pre>$_tgErrFormat"""
 			.stripMargin
 		).parseMode(ParseMode HTML))
 	}
@@ -120,9 +121,9 @@ class MornyReport (using coeur: MornyCoeur) {
 				case e: (IllegalAccessException|IllegalArgumentException|NullPointerException) =>
 					// language=html
 					echo ++= s": <i>${h("<read-error>")}</i>"
-					logger error
+					logger `error`
 							s"""error while reading config field ${field.getName}
-							   |${exceptionLog(e)}""".stripMargin
+							   |${e.toLogString}""".stripMargin
 					exception(e, s"error while reading config field ${field.getName}")
 			echo ++= "\n"
 		}
@@ -224,14 +225,14 @@ class MornyReport (using coeur: MornyCoeur) {
 					case State.OK(from) =>
 						val timeUsed = EventTimeUsed(System.currentTimeMillis - event.timeStartup)
 						givenCxt << timeUsed
-						logger debug
+						logger `debug`
 							s"""event done with OK
 							   |  with time consumed ${timeUsed.it}ms
 							   |  by $from""".stripMargin
 						runningTime ++ timeUsed.it
 					case State.CANCELED(from) =>
 						eventCanceled += 1
-						logger debug
+						logger `debug`
 							s"""event done with CANCELED"
 							   |  by $from""".stripMargin
 					case null =>

src/main/scala/cc/sukazyo/cono/morny/slash_action/OnUserSlashAction.scala

@@ -5,14 +5,15 @@ import cc.sukazyo.cono.morny.core.bot.api.{EventEnv, EventListener}
 import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramFormatter.*
 import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramParseEscape.escapeHtml as h
 import cc.sukazyo.cono.morny.util.UniversalCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
-import com.pengrad.telegrambot.model.Update
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.SendMessage
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.language.postfixOps
 
 class OnUserSlashAction (using coeur: MornyCoeur) extends EventListener {
+	private given TelegramBot = coeur.account
 	
 	private val TG_FORMAT = "^\\w+(@\\w+)?$"r
 	
@@ -22,7 +23,7 @@ class OnUserSlashAction (using coeur: MornyCoeur) extends EventListener {
 		val text = update.message.text
 		if text == null then return;
 		
-		if (text startsWith "/") {
+		if (text `startsWith` "/") {
 			
 			// there has to be some special conditions for DP7
 			// due to I have left DP7, I closed those special
@@ -33,7 +34,7 @@ class OnUserSlashAction (using coeur: MornyCoeur) extends EventListener {
 			// these message, here to remember the old DP7.
 			
 			val actions = UniversalCommand.Lossy(text)
-			actions(0) = actions(0) substring 1
+			actions(0) = actions(0) `substring` 1
 			
 			actions(0)
 			
@@ -42,7 +43,7 @@ class OnUserSlashAction (using coeur: MornyCoeur) extends EventListener {
 				case TG_FORMAT(_) =>
 					return;
 				// ignore Path link
-				case x if x contains "/" => return;
+				case x if x `contains` "/" => return;
 				case _ =>
 			
 			val isHardParse = actions(0) isBlank
@@ -52,7 +53,7 @@ class OnUserSlashAction (using coeur: MornyCoeur) extends EventListener {
 			val hasObject = actions.length != hp_len(1)
 			val v_object =
 				if hasObject then
-					actions slice(hp_len(1), actions.length) mkString " "
+					actions `slice` (hp_len(1), actions.length) `mkString` " "
 				else ""
 			val origin = update.message
 			val target =
@@ -60,7 +61,7 @@ class OnUserSlashAction (using coeur: MornyCoeur) extends EventListener {
 					origin
 				else update.message.replyToMessage
 			
-			coeur.account exec SendMessage(
+			SendMessage(
 				update.message.chat.id,
 				"%s %s%s %s %s!".format(
 					origin.sender_firstnameRefHTML,
@@ -71,6 +72,7 @@ class OnUserSlashAction (using coeur: MornyCoeur) extends EventListener {
 					if hasObject then h(v_object+" ") else ""
 				)
 			).parseMode(ParseMode HTML).replyToMessageId(update.message.messageId)
+				.unsafeExecute
 			event.setEventOk
 			
 		}

src/main/scala/cc/sukazyo/cono/morny/social_share/ModuleSocialShare.scala

@@ -25,4 +25,3 @@ class ModuleSocialShare extends MornyInternalModule {
 	}
 	
 }
- 

src/main/scala/cc/sukazyo/cono/morny/social_share/api/SocialContent.scala

@@ -4,10 +4,11 @@ import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.InlineQueryUnit
 import cc.sukazyo.cono.morny.social_share.api.SocialContent.{SocialMedia, SocialMediaType, SocialMediaWithUrl}
 import cc.sukazyo.cono.morny.social_share.api.SocialContent.SocialMediaType.{Photo, Video}
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import cc.sukazyo.cono.morny.util.tgapi.formatting.NamingUtils.inlineQueryId
 import com.pengrad.telegrambot.model.request.*
 import com.pengrad.telegrambot.request.{SendMediaGroup, SendMessage}
+import com.pengrad.telegrambot.TelegramBot
 
 /** Model of social networks' status. for example twitter tweet or
   * weibo status.
@@ -44,18 +45,19 @@ case class SocialContent (
 			case _ => orElse
 	
 	def outputToTelegram (using replyChat: Long, replyToMessage: Int)(using coeur: MornyCoeur): Unit = {
+		given TelegramBot = coeur.account
 		if medias isEmpty then
-			coeur.account exec
-				SendMessage(replyChat, text_html)
-					.parseMode(ParseMode.HTML)
-					.replyToMessageId(replyToMessage)
+			SendMessage(replyChat, text_html)
+				.parseMode(ParseMode.HTML)
+				.replyToMessageId(replyToMessage)
+				.unsafeExecute
 		else
 			val mediaGroup = medias.map(f => f.genTelegramInputMedia)
 			mediaGroup.head.caption(text_html)
 			mediaGroup.head.parseMode(ParseMode.HTML)
-			coeur.account exec
-				SendMediaGroup(replyChat, mediaGroup: _*)
-					.replyToMessageId(replyToMessage)
+			SendMediaGroup(replyChat, mediaGroup*)
+				.replyToMessageId(replyToMessage)
+				.unsafeExecute
 	}
 	
 	def genInlineQueryResults (using id_head: String, id_param: Any, name: String): List[InlineQueryUnit[?]] = {
@@ -99,13 +101,13 @@ object SocialContent {
 		def genTelegramInputMedia: InputMedia[?]
 	}
 	case class SocialMediaWithUrl (url: String)(t: SocialMediaType) extends SocialMedia(t) {
-		override def genTelegramInputMedia: InputMedia[_] =
+		override def genTelegramInputMedia: InputMedia[?] =
 			t match
 				case Photo => InputMediaPhoto(url)
 				case Video => InputMediaVideo(url)
 	}
 	case class SocialMediaWithBytesData (data: Array[Byte])(t: SocialMediaType) extends SocialMedia(t) {
-		override def genTelegramInputMedia: InputMedia[_] =
+		override def genTelegramInputMedia: InputMedia[?] =
 			t match
 				case Photo => InputMediaPhoto(data)
 				case Video => InputMediaVideo(data)

src/main/scala/cc/sukazyo/cono/morny/social_share/command/GetSocial.scala

@@ -5,11 +5,13 @@ import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ITelegramCommand}
 import cc.sukazyo.cono.morny.data.TelegramStickers
 import cc.sukazyo.cono.morny.social_share.event.OnGetSocial
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.request.SendSticker
+import com.pengrad.telegrambot.TelegramBot
 
 class GetSocial (using coeur: MornyCoeur) extends ITelegramCommand {
+	private given TelegramBot = coeur.account
 	
 	override val name: String = "get"
 	override val aliases: List[ICommandAlias] = Nil
@@ -19,10 +21,11 @@ class GetSocial (using coeur: MornyCoeur) extends ITelegramCommand {
 	override def execute (using command: InputCommand, event: Update): Unit = {
 		
 		def do404 (): Unit =
-			coeur.account exec SendSticker(
+			SendSticker(
 				event.message.chat.id,
 				TelegramStickers.ID_404
 			).replyToMessageId(event.message.messageId())
+				.unsafeExecute
 		
 		val content =
 			if command.args.length > 0 then

src/main/scala/cc/sukazyo/cono/morny/social_share/event/OnGetSocial.scala

@@ -1,6 +1,6 @@
 package cc.sukazyo.cono.morny.social_share.event
 
-import cc.sukazyo.cono.morny.core.Log.{exceptionLog, logger}
+import cc.sukazyo.cono.morny.core.Log.logger
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{EventEnv, EventListener}
 import cc.sukazyo.cono.morny.data.TelegramStickers
@@ -8,11 +8,13 @@ import cc.sukazyo.cono.morny.reporter.MornyReport
 import cc.sukazyo.cono.morny.social_share.api.{SocialTwitterParser, SocialWeiboParser}
 import cc.sukazyo.cono.morny.social_share.event.OnGetSocial.tryFetchSocial
 import cc.sukazyo.cono.morny.social_share.external.{twitter, weibo}
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
 import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Message.textWithUrls
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
+import cc.sukazyo.cono.morny.util.UseThrowable.toLogString
 import com.pengrad.telegrambot.model.Chat
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.{SendMessage, SendSticker}
+import com.pengrad.telegrambot.TelegramBot
 
 class OnGetSocial (using coeur: MornyCoeur) extends EventListener {
 	
@@ -80,36 +82,39 @@ object OnGetSocial {
 			val api = FXApi.Fetch.status(Some(url.screenName), url.statusId)
 			SocialTwitterParser.parseFXTweet(api).outputToTelegram
 		} catch case e: (SttpClientException | ParsingFailure | DecodingFailure) =>
-			coeur.account exec SendSticker(
+			SendSticker(
 				replyChat,
 				TelegramStickers.ID_NETWORK_ERR
-			).replyToMessageId(replyToMessage)
-			logger error
-				"Error on requesting FixTweet API\n" + exceptionLog(e)
+			).replyToMessageId(replyToMessage).unsafeExecute(using coeur.account)
+			logger `error`
+				"Error on requesting FixTweet API\n" + e.toLogString
 			coeur.externalContext.consume[MornyReport](_.exception(e, "Error on requesting FixTweet API"))
 	
 	def tryFetchSocialOfWeibo (url: weibo.StatusUrlInfo)(using replyChat: Long, replyToMessage: Int)(using coeur: MornyCoeur): Unit =
 		import cc.sukazyo.cono.morny.social_share.external.weibo.MApi
 		import io.circe.{DecodingFailure, ParsingFailure}
 		import sttp.client3.{HttpError, SttpClientException}
+		given TelegramBot = coeur.account
 		try {
 			val api = MApi.Fetch.statuses_show(url.id)
 			SocialWeiboParser.parseMStatus(api).outputToTelegram
 		} catch
 			case e: HttpError[?] =>
-				coeur.account exec SendMessage(
+				SendMessage(
 					replyChat,
 					// language=html
 					s"""Weibo Request Error <code>${e.statusCode}</code>
 					   |<pre><code>${e.body}</code></pre>""".stripMargin
 				).replyToMessageId(replyToMessage).parseMode(ParseMode.HTML)
+					.unsafeExecute
 			case e: (SttpClientException | ParsingFailure | DecodingFailure) =>
-				coeur.account exec SendSticker(
+				SendSticker(
 					replyChat,
 					TelegramStickers.ID_NETWORK_ERR
 				).replyToMessageId(replyToMessage)
-				logger error
-					"Error on requesting Weibo m.API\n" + exceptionLog(e)
+					.unsafeExecute
+				logger `error`
+					"Error on requesting Weibo m.API\n" + e.toLogString
 				coeur.externalContext.consume[MornyReport](_.exception(e, "Error on requesting Weibo m.API"))
 	
 }

src/main/scala/cc/sukazyo/cono/morny/social_share/external/bilibili/BiliTool.scala

@@ -108,12 +108,12 @@ object BiliTool {
 	  */
 	def toBv (av: Long): String = {
 		val _av = (av^V_CONV_XOR)+V_CONV_ADD
-		val bv = Array(BV_TEMPLATE:_*)
+		val bv = Array(BV_TEMPLATE*)
 		for (i <- BV_TEMPLATE_FILTER.indices) {
 			import Math.{floor, pow}
 			bv(BV_TEMPLATE_FILTER(i)) = BV_TABLE( (floor(_av/(TABLE_INT**i)) % TABLE_INT) toInt )
 		}
-		String copyValueOf bv
+		String `copyValueOf` bv
 	}
 	
 }

src/main/scala/cc/sukazyo/cono/morny/social_share/external/bilibili/BilibiliForms.scala

@@ -72,7 +72,7 @@ object BilibiliForms {
 			IllegalArgumentException(s"not a b23.tv url: $uri")
 		else if uri.pathSegments.segments.size < 1 then
 			throw IllegalArgumentException(s"empty b23.tv url: $uri")
-		else if uri.pathSegments.segments.head.v matches REGEX_BILI_ID.regex then
+		else if uri.pathSegments.segments.head.v `matches` REGEX_BILI_ID.regex then
 			throw IllegalArgumentException(s"is a b23 video link: $uri . (use parse_videoUrl instead)")
 		
 		try {

src/main/scala/cc/sukazyo/cono/morny/social_share/external/weibo/MApi.scala

@@ -33,7 +33,7 @@ object MApi {
 		
 		private val httpClient = OkHttpSyncBackend()
 		
-		@throws[HttpError[_]|SttpClientException|ParsingFailure|DecodingFailure]
+		@throws[HttpError[?]|SttpClientException|ParsingFailure|DecodingFailure]
 		def statuses_show (id: String): MApi[MStatus] =
 			import sttp.client3.asString
 			import MApi.CirceADTs.given
@@ -46,7 +46,7 @@ object MApi {
 				.as[MApi[MStatus]]
 				.toTry.get
 		
-		@throws[HttpError[_] | SttpClientException | ParsingFailure | DecodingFailure]
+		@throws[HttpError[?] | SttpClientException | ParsingFailure | DecodingFailure]
 		def pic (picUrl: String): Array[Byte] =
 			import sttp.client3.*
 			import sttp.model.{MediaType, Uri}

src/main/scala/cc/sukazyo/cono/morny/social_share/query/ShareToolBilibili.scala

@@ -1,10 +1,11 @@
 package cc.sukazyo.cono.morny.social_share.query
 
-import cc.sukazyo.cono.morny.core.Log.{exceptionLog, logger}
+import cc.sukazyo.cono.morny.core.Log.logger
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{InlineQueryUnit, ITelegramQuery}
 import cc.sukazyo.cono.morny.reporter.MornyReport
 import cc.sukazyo.cono.morny.util.tgapi.formatting.NamingUtils.inlineQueryId
+import cc.sukazyo.cono.morny.util.UseThrowable.toLogString
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.model.request.{InlineQueryResultArticle, InputTextMessageContent, ParseMode}
 
@@ -20,7 +21,7 @@ class ShareToolBilibili (using coeur: MornyCoeur) extends ITelegramQuery {
 	private val LINK_PREFIX = "https://bilibili.com/video/"
 	private val SHARE_FORMAT_HTML = "<a href='%s'>%s</a>"
 	
-	override def query (event: Update): List[InlineQueryUnit[_]] | Null = {
+	override def query (event: Update): List[InlineQueryUnit[?]] | Null = {
 		
 		if (event.inlineQuery.query == null) return null
 		if (event.inlineQuery.query isBlank) return null
@@ -36,7 +37,7 @@ class ShareToolBilibili (using coeur: MornyCoeur) extends ITelegramQuery {
 					case _: IllegalArgumentException =>
 						return null;
 					case e: IllegalStateException =>
-						logger error exceptionLog(e)
+						logger `error` e.toLogString
 						coeur.externalContext.consume[MornyReport](_.exception(e))
 						return null;
 		

src/main/scala/cc/sukazyo/cono/morny/social_share/query/ShareToolSocialContent.scala

@@ -9,14 +9,14 @@ import com.pengrad.telegrambot.model.Update
 
 class ShareToolSocialContent extends ITelegramQuery {
 	
-	override def query (event: Update): List[InlineQueryUnit[_]] | Null = {
+	override def query (event: Update): List[InlineQueryUnit[?]] | Null = {
 		
 		val _queryRaw = event.inlineQuery.query
 		val query =
 			_queryRaw.trim match
-				case _startsWithTag if _startsWithTag startsWith "get " =>
+				case _startsWithTag if _startsWithTag `startsWith` "get " =>
 					(_startsWithTag drop 4)trim
-				case _endsWithTag if _endsWithTag endsWith " get" =>
+				case _endsWithTag if _endsWithTag `endsWith` " get" =>
 					(_endsWithTag dropRight 4)trim
 				case _ => return null
 		

src/main/scala/cc/sukazyo/cono/morny/social_share/query/ShareToolTwitter.scala

@@ -8,7 +8,6 @@ import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.model.request.InlineQueryResultArticle
 
 import scala.language.postfixOps
-import scala.util.matching.Regex
 
 class ShareToolTwitter extends ITelegramQuery {
 	
@@ -17,7 +16,7 @@ class ShareToolTwitter extends ITelegramQuery {
 	private val TITLE_FX = "[tweet] Share as Fix-Tweet"
 	private val ID_PREFIX_FX = "[morny/share/twitter/fxtwi]"
 	
-	override def query (event: Update): List[InlineQueryUnit[_]] | Null = {
+	override def query (event: Update): List[InlineQueryUnit[?]] | Null = {
 		
 		if (event.inlineQuery.query == null) return null
 		

src/main/scala/cc/sukazyo/cono/morny/stickers_get/http/StickerService.scala

@@ -4,7 +4,10 @@ import cats.effect.IO
 import cc.sukazyo.cono.morny.core.http.api.HttpService4Api
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.data.TelegramImages
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.File.getContent
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.execute
 import com.pengrad.telegrambot.request.GetFile
+import com.pengrad.telegrambot.TelegramBot
 import org.http4s.{HttpRoutes, MediaType}
 import org.http4s.dsl.io.*
 import org.http4s.headers.`Content-Type`
@@ -17,10 +20,11 @@ class StickerService (using coeur: MornyCoeur) extends HttpService4Api {
 		
 		case GET -> Root / "sticker" / "id" / id =>
 			try {
-				val response = coeur.account execute GetFile(id)
+				val response = GetFile(id).execute(using coeur.account)
 				if response.isOk then
 					try {
-						val file = coeur.account getFileContent response.file
+						given TelegramBot = coeur.account
+						val file = response.file.getContent
 						Ok(file)
 					} catch {
 						case e: IOException =>

src/main/scala/cc/sukazyo/cono/morny/tele_utils/InlineRawText.scala

@@ -12,7 +12,7 @@ class InlineRawText extends ITelegramQuery {
 	private val ID_PREFIX = "[morny/r/text]"
 	private val TITLE = "Raw Text"
 	
-	override def query (event: Update): List[InlineQueryUnit[_]] | Null = {
+	override def query (event: Update): List[InlineQueryUnit[?]] | Null = {
 		
 		if (event.inlineQuery.query == null || (event.inlineQuery.query isBlank)) return null
 		

src/main/scala/cc/sukazyo/cono/morny/tele_utils/event_hack/CommandEventHack.scala

@@ -4,13 +4,15 @@ import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ITelegramCommand}
 import cc.sukazyo.cono.morny.data.TelegramStickers
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.request.SendSticker
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.language.postfixOps
 
 class CommandEventHack (using hacker: EventHacker)(using coeur: MornyCoeur) extends ITelegramCommand {
+	private given TelegramBot = coeur.account
 	
 	override val name: String = "event_hack"
 	override val aliases: List[ICommandAlias] = Nil
@@ -24,15 +26,17 @@ class CommandEventHack (using hacker: EventHacker)(using coeur: MornyCoeur) exte
 		val x_mode = if (command.args nonEmpty) command.args(0) else ""
 		
 		def done_ok =
-			coeur.account exec SendSticker(
+			SendSticker(
 				event.message.chat.id,
 				TelegramStickers ID_WAITING
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 		def done_forbiddenForAny =
-			coeur.account exec SendSticker(
+			SendSticker(
 				event.message.chat.id,
 				TelegramStickers ID_403
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 		
 		def doRegister (t: HackType): Unit =
 			registerHack(
@@ -43,7 +47,7 @@ class CommandEventHack (using hacker: EventHacker)(using coeur: MornyCoeur) exte
 			)
 		x_mode match
 			case "any" =>
-				if (coeur.trusted isTrusted event.message.from.id)
+				if (coeur.trusted isTrust event.message.from)
 					doRegister(HackType ANY)
 					done_ok
 				else done_forbiddenForAny

src/main/scala/cc/sukazyo/cono/morny/tele_utils/event_hack/EventHacker.scala

@@ -2,15 +2,17 @@ package cc.sukazyo.cono.morny.tele_utils.event_hack
 
 import cc.sukazyo.cono.morny.core.Log.logger
 import cc.sukazyo.cono.morny.core.MornyCoeur
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.google.gson.GsonBuilder
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.SendMessage
+import com.pengrad.telegrambot.TelegramBot
 
 import scala.collection.mutable
 
 class EventHacker (using coeur: MornyCoeur) {
+	private given TelegramBot = coeur.account
 	
 	private case class Hacker (from_chat: Long, from_message: Long):
 		override def toString: String = s"$from_chat/$from_message"
@@ -28,22 +30,23 @@ class EventHacker (using coeur: MornyCoeur) {
 			case HackType.GROUP => s"{{$from_chat}}"
 			case HackType.ANY => "[[]]"
 		hackers += (record -> Hacker(from_chat, from_message))
-		logger debug s"add hacker track $record"
+		logger `debug` s"add hacker track $record"
 	
 	def trigger (chat: Long, fromUser: Long)(using update: Update): Boolean = {
-		logger debug s"got event signed {{$chat}}(($fromUser))"
+		logger `debug` s"got event signed {{$chat}}(($fromUser))"
 		val x: Hacker =
 			if hackers contains s"(($fromUser))" then (hackers remove s"(($fromUser))") get
 			else if hackers contains s"{{$chat}}" then (hackers remove s"{{$chat}}") get
 			else if hackers contains "[[]]" then (hackers remove "[[]]") get
 			else return false
-		logger debug s"hacked event by $x"
+		logger `debug` s"hacked event by $x"
 		import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramParseEscape.escapeHtml as h
-		coeur.account exec SendMessage(
+		SendMessage(
 			x.from_chat,
 			// language=html
 			s"<pre><code class='language-json'>${h(GsonBuilder().setPrettyPrinting().create.toJson(update))}</code></pre>"
 		).parseMode(ParseMode HTML).replyToMessageId(x.from_message toInt)
+			.unsafeExecute
 		true
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/tele_utils/user_info/CommandGetUser.scala

@@ -4,14 +4,14 @@ import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ITelegramCommand}
 import cc.sukazyo.cono.morny.util.tgapi.{InputCommand, Standardize}
 import cc.sukazyo.cono.morny.util.tgapi.formatting.TelegramUserInformation
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.{execute, unsafeExecute}
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.{GetChatMember, SendMessage}
-
-import scala.language.postfixOps
+import com.pengrad.telegrambot.TelegramBot
 
 class CommandGetUser (using coeur: MornyCoeur) extends ITelegramCommand {
+	private given TelegramBot = coeur.account
 	
 	override val name: String = "user"
 	override val aliases: List[ICommandAlias] = Nil
@@ -23,46 +23,51 @@ class CommandGetUser (using coeur: MornyCoeur) extends ITelegramCommand {
 		val args = command.args
 		
 		if (args.length > 1)
-			coeur.account exec SendMessage(
+			SendMessage(
 				event.message.chat.id,
 				"[Unavailable] Too much arguments."
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 			return
 		
 		val userId: Long =
 			if (args nonEmpty) {
 				try args(0) toLong
 				catch case e: NumberFormatException =>
-					coeur.account exec SendMessage(
+					SendMessage(
 						event.message.chat.id,
 						s"[Unavailable] ${e.getMessage}"
 					).replyToMessageId(event.message.messageId)
+						.unsafeExecute
 					return
 			} else if (event.message.replyToMessage eq null) event.message.from.id
 			else event.message.replyToMessage.from.id
 		
-		val response = coeur.account execute GetChatMember(event.message.chat.id, userId)
+		val response = GetChatMember(event.message.chat.id, userId).execute
 		
 		if (response.chatMember eq null)
-			coeur.account exec SendMessage(
+			SendMessage(
 				event.message.chat.id,
 				"[Unavailable] user not found."
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 			return
 		
 		val user = response.chatMember.user
 		
 		if (user.id == Standardize.CHANNEL_SPEAKER_MAGIC_ID)
-			coeur.account exec SendMessage(
+			SendMessage(
 				event.message.chat.id,
 				"<code>$__channel_identify</code>"
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 			return;
 		
-		coeur.account exec SendMessage(
+		SendMessage(
 			event.message.chat.id,
-			TelegramUserInformation getFormattedInformation user
+			TelegramUserInformation.getFormattedInformation(user)
 		).replyToMessageId(event.message.messageId()).parseMode(ParseMode HTML)
+			.unsafeExecute
 		
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/tele_utils/user_info/InlineMyInformation.scala

@@ -13,7 +13,7 @@ class InlineMyInformation extends ITelegramQuery {
 	private val ID_PREFIX = "[morny/info/me]"
 	private val TITLE = "My Account Information"
 	
-	override def query (event: Update): List[InlineQueryUnit[_]] | Null = {
+	override def query (event: Update): List[InlineQueryUnit[?]] | Null = {
 		
 		if !((event.inlineQuery.query eq null) || (event.inlineQuery.query isEmpty)) then return null
 		
@@ -21,7 +21,7 @@ class InlineMyInformation extends ITelegramQuery {
 			InlineQueryUnit(InlineQueryResultArticle(
 				inlineQueryId(ID_PREFIX), TITLE,
 				new InputTextMessageContent(
-					TelegramUserInformation getFormattedInformation event.inlineQuery.from
+					TelegramUserInformation.getFormattedInformation(event.inlineQuery.from)
 				).parseMode(ParseMode HTML)
 			)).isPersonal(true).cacheTime(10)
 		)

src/main/scala/cc/sukazyo/cono/morny/uni_meow/BotEventUniMeowTrigger.scala

@@ -10,17 +10,17 @@ class BotEventUniMeowTrigger (using commands: UniMeowCommandManager) extends Eve
 		import event.*
 		
 		givenCxt >> { (input: InputCommand) =>
-			logger trace s"got input command {$input} from event-context"
+			logger `trace` s"got input command {$input} from event-context"
 			
-			for ((name, command_instance) <- commands.commands) {
-				logger trace s"checking uni-meow $name"
+			for ((name, command_instance) <- commands.getCommands) {
+				logger `trace` s"checking uni-meow $name"
 				if (name == input.command)
-					logger trace "checked"
+					logger `trace` "checked"
 					command_instance.execute(using input, event.update)
 					event.setEventOk
 			}
 			
-		} || { logger trace "not command (for uni-meow)" }
+		} || { logger `trace` "not command (for uni-meow)" }
 		
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/uni_meow/UniMeowCommandManager.scala

@@ -1,17 +1,9 @@
 package cc.sukazyo.cono.morny.uni_meow
 
-import cc.sukazyo.cono.morny.core.bot.api.ISimpleCommand
-import cc.sukazyo.cono.morny.core.bot.api.MornyCommandManager.CommandMap
+import cc.sukazyo.cono.morny.core.bot.api.SimpleCommandManager
 
-import scala.collection.mutable
+class UniMeowCommandManager extends SimpleCommandManager{
 	
-class UniMeowCommandManager {
-	
-	private[uni_meow] val commands: CommandMap = mutable.SeqMap.empty
-	def register [T <: ISimpleCommand] (commands: T*): Unit =
-		for (i <- commands)
-			this.commands += (i.name -> i)
-			for (alias <- i.aliases)
-				this.commands += (alias.name -> i)
+	protected[uni_meow] def getCommands: this.commands.type = this.commands
 	
 }

src/main/scala/cc/sukazyo/cono/morny/uni_meow/创.scala

@@ -3,12 +3,14 @@ package cc.sukazyo.cono.morny.uni_meow
 import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ISimpleCommand}
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.*
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.{MessageEntity, Update}
 import com.pengrad.telegrambot.request.SendMessage
+import com.pengrad.telegrambot.TelegramBot
 
 //noinspection NonAsciiCharacters
 class 创 (using coeur: MornyCoeur) {
+	private given TelegramBot = coeur.account
 	
 	object Chuang extends ISimpleCommand {
 		
@@ -27,12 +29,13 @@ class 创 (using coeur: MornyCoeur) {
 					return;
 			
 			val chuangText = 创.chuangText(text)
-			coeur.account exec SendMessage(
+			SendMessage(
 				event.message.chat.id,
 				chuangText
 			).entities(
 				MessageEntity(MessageEntity.Type.pre, 0, chuangText.length)
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 			
 		}
 		

src/main/scala/cc/sukazyo/cono/morny/uni_meow/喵呜.scala

@@ -4,10 +4,11 @@ import cc.sukazyo.cono.morny.core.MornyCoeur
 import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ISimpleCommand, ITelegramCommand}
 import cc.sukazyo.cono.morny.data.TelegramStickers
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.{Message, Update}
 import com.pengrad.telegrambot.model.request.ParseMode
 import com.pengrad.telegrambot.request.{SendMessage, SendSticker}
+import com.pengrad.telegrambot.TelegramBot
 
 import javax.swing.text.html.HTML
 import scala.annotation.unused
@@ -15,6 +16,7 @@ import scala.language.postfixOps
 
 //noinspection NonAsciiCharacters
 class 喵呜 (using coeur: MornyCoeur) {
+	private given TelegramBot = coeur.account
 	
 	object 抱抱 extends ISimpleCommand {
 		override val name: String = "抱抱"
@@ -50,20 +52,22 @@ class 喵呜 (using coeur: MornyCoeur) {
 		override val paramRule: String = ""
 		override val description: String = "抽取一个神秘盒子"
 		override def execute (using command: InputCommand, event: Update): Unit = {
-			coeur.account exec new SendSticker(
+			SendSticker(
 				event.message.chat.id,
 				TelegramStickers ID_PROGYNOVA
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 		}
 	}
 	
 	private def replyingSet (whileRec: String, whileNew: String)(using event: Update): Unit = {
 		val isNew = event.message.replyToMessage == null
 		val target = if (isNew) event.message else event.message.replyToMessage
-		coeur.account exec new SendMessage(
+		SendMessage(
 			event.message.chat.id,
 			if (isNew) whileNew else whileRec
 		).replyToMessageId(target.messageId).parseMode(ParseMode HTML)
+			.unsafeExecute
 	}
 	
 }

src/main/scala/cc/sukazyo/cono/morny/uni_meow/私わね.scala

@@ -5,12 +5,14 @@ import cc.sukazyo.cono.morny.core.bot.api.{ICommandAlias, ISimpleCommand}
 import cc.sukazyo.cono.morny.util.tgapi.InputCommand
 import cc.sukazyo.cono.morny.util.UseMath.over
 import cc.sukazyo.cono.morny.util.UseRandom.*
-import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Bot.exec
+import cc.sukazyo.cono.morny.util.tgapi.TelegramExtensions.Requests.unsafeExecute
 import com.pengrad.telegrambot.model.Update
 import com.pengrad.telegrambot.request.SendMessage
+import com.pengrad.telegrambot.TelegramBot
 
 //noinspection NonAsciiCharacters
 class 私わね (using coeur: MornyCoeur) extends ISimpleCommand {
+	private given TelegramBot = coeur.account
 	
 	override val name: String = "me"
 	override val aliases: List[ICommandAlias] = Nil
@@ -19,10 +21,11 @@ class 私わね (using coeur: MornyCoeur) extends ISimpleCommand {
 		
 		if ((1 over 521) chance_is true) {
 			val text = "/打假"
-			coeur.account exec new SendMessage(
+			SendMessage(
 				event.message.chat.id,
 				text
 			).replyToMessageId(event.message.messageId)
+				.unsafeExecute
 		}
 		
 	}

src/main/scala/cc/sukazyo/cono/morny/util/CommonEncrypt.scala

@@ -37,7 +37,7 @@ object CommonEncrypt {
 	
 	private def hash (data: Bin)(using algorithm: String): Bin =
 		try {
-			MessageDigest.getInstance(algorithm) digest data
+			MessageDigest.getInstance(algorithm) `digest` data
 		} catch case n: NoSuchAlgorithmException =>
 			throw IllegalStateException(n)
 	
@@ -47,7 +47,7 @@ object CommonEncrypt {
 	  *
 	  * $WhenString2Bin
 	  */
-	def MD5 (data: String): Bin = hash(data getBytes ENCRYPT_STANDARD_CHARSET)(using "md5")
+	def MD5 (data: String): Bin = hash(data.getBytes(ENCRYPT_STANDARD_CHARSET))(using "md5")
 	
 	/** the [[https://en.wikipedia.org/wiki/SHA-1 SHA-1]] hash value of input [[Bin]] `data`. */
 	def SHA1 (data: Bin): Bin = hash(data)(using "sha1")
@@ -55,7 +55,7 @@ object CommonEncrypt {
 	  *
 	  * $WhenString2Bin
 	  */
-	def SHA1 (data: String): Bin = hash(data getBytes ENCRYPT_STANDARD_CHARSET)(using "sha1")
+	def SHA1 (data: String): Bin = hash(data.getBytes(ENCRYPT_STANDARD_CHARSET))(using "sha1")
 	
 	/** the [[https://en.wikipedia.org/wiki/SHA-2 SHA-2/256]] hash value of input [[Bin]] `data`. */
 	def SHA256 (data: Bin): Bin = hash(data)(using "sha256")
@@ -63,7 +63,7 @@ object CommonEncrypt {
 	  *
 	  * $WhenString2Bin
 	  */
-	def SHA256 (data: String): Bin = hash(data getBytes ENCRYPT_STANDARD_CHARSET)(using "sha256")
+	def SHA256 (data: String): Bin = hash(data.getBytes(ENCRYPT_STANDARD_CHARSET))(using "sha256")
 	
 	/** the [[https://en.wikipedia.org/wiki/SHA-2 SHA-2/512]] hash value of input [[Bin]] `data`. */
 	def SHA512 (data: Bin): Bin = hash(data)(using "sha512")
@@ -71,7 +71,7 @@ object CommonEncrypt {
 	  *
 	  * $WhenString2Bin
 	  */
-	def SHA512 (data: String): Bin = hash(data getBytes ENCRYPT_STANDARD_CHARSET)(using "sha512")
+	def SHA512 (data: String): Bin = hash(data.getBytes(ENCRYPT_STANDARD_CHARSET))(using "sha512")
 	
 	/** Try get the filename before it got encrypted.
 	  *
@@ -89,10 +89,10 @@ object CommonEncrypt {
 	  * @return the file fullname removed the base64 file extension.
 	  */
 	def lint_base64FileName (encrypted: String): String = encrypted match
-		case i  if i  endsWith ".b64"        => i  dropRight ".b64".length
-		case ix if ix endsWith ".b64.txt"    => ix dropRight ".b64.txt".length
-		case l  if l  endsWith ".base64"     => l  dropRight ".base64".length
-		case lx if lx endsWith ".base64.txt" => lx dropRight ".base64.txt".length
+		case i  if i  `endsWith` ".b64"        => i  dropRight ".b64".length
+		case ix if ix `endsWith` ".b64.txt"    => ix dropRight ".b64.txt".length
+		case l  if l  `endsWith` ".base64"     => l  dropRight ".base64".length
+		case lx if lx `endsWith` ".base64.txt" => lx dropRight ".base64.txt".length
 		case u => u
 	
 	/** Hash a [[Long]] id to [[Bin]] using [[MD5]] algorithm.

src/main/scala/cc/sukazyo/cono/morny/util/EpochDateTime.scala

@@ -8,10 +8,14 @@ object EpochDateTime {
 	/** The UNIX Epoch Time in milliseconds.
 	  *
 	  * aka. Milliseconds since 00:00:00 UTC on Thursday, 1 January 1970.
+	  *
+	  * @since 1.1.1
 	  */
 	type EpochMillis = Long
 	object EpochMillis:
 		/** convert a localtime with timezone to epoch milliseconds
+		  *
+		  * @since 1.1.1
 		  *
 		  * @param time the local time in that timezone, should be formatted
 		  *             in [[DateTimeFormatter.ISO_DATE_TIME]]
@@ -22,7 +26,7 @@ object EpochDateTime {
 		def apply (time: String, zone: String): EpochMillis = {
 			val formatter = DateTimeFormatter.ISO_DATE_TIME
 			val innerTime = LocalDateTime.parse(time, formatter)
-			val instant = innerTime.toInstant(ZoneOffset of zone)
+			val instant = innerTime.toInstant(ZoneOffset `of` zone)
 			instant.toEpochMilli
 		}
 		def apply (time_zone: (String, String)): EpochMillis =
@@ -33,8 +37,10 @@ object EpochDateTime {
 		  *
 		  * Due to the missing accuracy, the converted EpochMillis will
 		  * be always in 0ms aligned.
+		  *
+		  * @since 2.0.0
 		  */
-		def fromEpochSeconds (epochSeconds: EpochSeconds): EpochMillis =
+		infix def fromSeconds (epochSeconds: EpochSeconds): EpochMillis =
 			epochSeconds.longValue * 1000L
 	
 	/** The UNIX Epoch Time in seconds.
@@ -45,6 +51,8 @@ object EpochDateTime {
 	  *
 	  * Notice that, currently, it stores using [[Int]] (also the implementation
 	  * method of Telegram), which will only store times before 2038-01-19 03:14:07.
+	  *
+	  * @since 1.3.0
 	  */
 	type EpochSeconds = Int
 	
@@ -56,13 +64,20 @@ object EpochDateTime {
 	  *
 	  * Notice that, currently, it stores using [[Short]] (also the implementation
 	  * method of Telegram), which will only store times before 2059-09-18.
+	  *
+	  * @since 1.3.0
 	  */
 	type EpochDays = Short
 	object EpochDays:
-		def fromEpochMillis (epochMillis: EpochMillis): EpochDays =
+		/** Convert a [[EpochMillis]] to [[EpochDays]]. Will be loss of precision.
+		  * @since 2.0.0
+		  */
+		infix def fromMillis (epochMillis: EpochMillis): EpochDays =
 			(epochMillis / (1000*60*60*24)).toShort
 	
-	/** Time duration/interval in milliseconds. */
+	/** Time duration/interval in milliseconds.
+	  * @since 1.3.0
+	  */
 	type DurationMillis = Long
 	
 }

src/main/scala/cc/sukazyo/cono/morny/util/FileUtils.scala

@@ -18,7 +18,7 @@ object FileUtils {
 		Using (FileInputStream(path)) { stream =>
 			len = stream.read(buffer)
 			while (len != -1)
-				algo update (buffer, 0, len)
+				algo.update(buffer, 0, len)
 				len = stream.read(buffer)
 		}
 		import ConvertByteHex.toHex

src/main/scala/cc/sukazyo/cono/morny/util/GivenContext.scala

@@ -1,26 +1,17 @@
 package cc.sukazyo.cono.morny.util
 
 import cc.sukazyo.cono.morny.util.GivenContext.{ContextNotGivenException, FolderClass, RequestItemClass}
-import cc.sukazyo.messiva.utils.StackUtils
 
 import scala.annotation.targetName
 import scala.collection.mutable
 import scala.reflect.{classTag, ClassTag}
-import scala.util.boundary
 
 object GivenContext {
 	case class FolderClass (clazz: Option[Class[?]])
 	object FolderClass:
 		def default: FolderClass = FolderClass(None)
 	case class RequestItemClass (clazz: Class[?])
-	private def lastNonGCStack: StackTraceElement =
-		boundary {
-			for (stack <- StackUtils.getStackTrace(0)) {
-				if (!stack.getClassName.startsWith(classOf[GivenContext].getName))
-					boundary break stack
-			}
-			StackTraceElement("unknown", "unknown", "unknown", -1)
-		}
+	
 	class ContextNotGivenException (using
 		val requestItemClass: RequestItemClass,
 		val folderClass: FolderClass = FolderClass.default,
@@ -69,7 +60,12 @@ object GivenContext {
   *     } catch case e: ContextNotGivenException =>          // if any of the above val is not available, it will catch the exception
   *         e.printStackTrace()
   * }}}
+  * 
+  * TODO: Tests
+  * 
+  * @since 2.0.0
   */
+//noinspection NoTargetNameAnnotationForOperatorLikeDefinition
 class GivenContext {
 	
 	private type ImplicitsMap [T <: Any] = mutable.HashMap[Class[?], T]
@@ -77,7 +73,7 @@ class GivenContext {
 	private val variables: ImplicitsMap[Any] = mutable.HashMap.empty
 	private val variablesWithOwner: ImplicitsMap[ImplicitsMap[Any]] = mutable.HashMap.empty
 	
-	def provide [T: ClassTag] (i: T): Unit =
+	infix def provide [T: ClassTag] (i: T): Unit =
 		variables += (classTag[T].runtimeClass -> i)
 	def << [T: ClassTag] (is: (Class[T], T)): Unit =
 		val (_, i) = is
@@ -91,7 +87,7 @@ class GivenContext {
 		variables get t.clazz match
 			case Some(i) => Right(i.asInstanceOf[T])
 			case None => Left(ContextNotGivenException())
-	def use [T: ClassTag, U] (consumer: T => U): ConsumeResult[U] =
+	infix def use [T: ClassTag, U] (consumer: T => U): ConsumeResult[U] =
 		this.use[T] match
 			case Left(_) => ConsumeFailed[U]()
 			case Right(i) => ConsumeSucceed[U](consumer(i))
@@ -101,7 +97,7 @@ class GivenContext {
 		this.use[T].toTry.get
 	def >>[T: ClassTag, U] (consumer: T => U): ConsumeResult[U] =
 		this.use[T,U](consumer)
-	def consume [T: ClassTag] (consume: T => Any): ConsumeResult[Any] =
+	infix def consume [T: ClassTag] (consume: T => Any): ConsumeResult[Any] =
 		this.use[T,Any](consume)
 	
 	@targetName("ownedBy")
@@ -112,7 +108,7 @@ class GivenContext {
 	
 	class OwnedContext [O: ClassTag] {
 		
-		def provide [T: ClassTag] (i: T): Unit =
+		infix def provide [T: ClassTag] (i: T): Unit =
 			(variablesWithOwner getOrElseUpdate (classTag[O].runtimeClass, mutable.HashMap.empty))
 				.addOne(classTag[T].runtimeClass -> i)
 		def << [T: ClassTag] (is: (Class[T], T)): Unit =
@@ -129,7 +125,7 @@ class GivenContext {
 					case Some(i) => Right(i.asInstanceOf[T])
 					case None => Left(ContextNotGivenException())
 				case None => Left(ContextNotGivenException())
-		def use [T: ClassTag, U] (consumer: T => U): ConsumeResult[U] =
+		infix def use [T: ClassTag, U] (consumer: T => U): ConsumeResult[U] =
 			use[T] match
 				case Left(_) => ConsumeFailed[U]()
 				case Right(i) => ConsumeSucceed[U](consumer(i))
@@ -139,7 +135,7 @@ class GivenContext {
 			this.use[T].toTry.get
 		def >> [T: ClassTag, U] (consumer: T => U): ConsumeResult[U] =
 			this.use[T,U](consumer)
-		def consume [T: ClassTag] (consume: T => Any): ConsumeResult[Any] =
+		infix def consume [T: ClassTag] (consume: T => Any): ConsumeResult[Any] =
 			this.use[T,Any](consume)
 		
 	}

src/main/scala/cc/sukazyo/cono/morny/util/StringEnsure.scala

@@ -5,13 +5,68 @@ object StringEnsure {
 	
 	extension (str: String) {
 		
-		def ensureSize(size: Int, paddingStr: Char = ' '): String = {
+		/** Ensure the string have a length not smaller that the given length.
+		  * 
+		  * If the length of the string is smaller than the given length, then the string will be padded
+		  * with the given padding character to the right, until the length of the string is not smaller
+		  * than the given length.
+		  * 
+		  * For now, it does nothing if the length of the string is not smaller than the given length.
+		  * 
+		  * @since 1.1.0
+		  * 
+		  * @param size The minimum length that the string should have.
+		  * @param paddingStr The character that will be used to pad the string. Defaults to `' '` (a space).
+		  * @return A string that have been ensured to have a length not smaller than the given length.
+		  */
+		infix def ensureSize(size: Int, paddingStr: Char = ' '): String = {
 			if (str.length < size) {
 				val padding = paddingStr.toString * (size-str.length)
 				str + padding
 			} else str
 		}
 		
+		/** Replace the String with a given char, keeps the String length and characters only at the start
+		  * and end.
+		  *
+		  * This method can be used to de-sensitive some sensitive information, such as phone number, email,
+		  * etc. The default setting is to keep the first 2 characters and the last 4 characters, and replace
+		  * the rest with '*'.
+		  *
+		  * Notice that this method have un-defined behavior when the length of the String is less than
+		  * the character that will be kept, so change the character length that will be kept in your need.
+		  *
+		  * Examples:
+		  * {{{
+		  *     scala> val someUserToken = "TOKEN_UV:V927c092FV$REFV[p':V<IE#*&@()U8eR)c"
+		  *     val someUserToken: String = TOKEN_UV:V927c092FV$REFV[p':V<IE#*&@()U8eR)c
+		  *
+		  *     scala> someUserToken.deSensitive()
+		  *     val res1: String = TO**************************************eR)c
+		  *
+		  *     scala> someUserToken.deSensitive(8, 4)
+		  *     val res2: String = TOKEN_UV********************************eR)c
+		  *
+		  *     scala> someUserToken.deSensitive(10, 4, '?')
+		  *     val res3: String = TOKEN_UV:V??????????????????????????????eR)c
+		  *
+		  *     scala> someUserToken.deSensitive(10, 4, '-')
+		  *     val res4: String = TOKEN_UV:V------------------------------eR)c
+		  *
+		  *     scala> "short".deSensitive(5, 5, '-')
+		  *     val res5: String = shortshort
+		  * }}}
+		  * 
+		  * @since 1.2.0
+		  *
+		  * @param keepStart The characters length that need to be kept at the start of the String. Defaults
+		  *                  to `2`.
+		  * @param keepEnd The characters length that need to be kept at the end of the String. Defaults to
+		  *                `4`.
+		  * @param sensitive_cover The character that will be used to cover the sensitive information.
+		  *                        Defaults to `*`.
+		  * @return A string that have been de-sensitive.
+		  */
 		def deSensitive (keepStart: Int = 2, keepEnd: Int = 4, sensitive_cover: Char = '*'): String =
 			(str take keepStart) + (sensitive_cover.toString*(str.length-keepStart-keepEnd)) + (str takeRight keepEnd)
 		

src/main/scala/cc/sukazyo/cono/morny/util/SttpPublic.scala

@@ -1,7 +1,8 @@
 package cc.sukazyo.cono.morny.util
 
 import cc.sukazyo.cono.morny.core.MornySystem
-import sttp.client3.basicRequest
+import sttp.client3.{basicRequest, RequestT}
+import sttp.client3
 import sttp.model.Header
 
 object SttpPublic {
@@ -17,13 +18,27 @@ object SttpPublic {
 			
 			private val key = "User-Agent"
 			
+			/** The default Morny User-Agent header.
+			  *
+			  * It follows the following template:
+			  *  `MornyCoeur / <morny-version>`
+			  *
+			  * @since 2.0.0
+			  */
 			val MORNY_CURRENT: Header = Header(key, s"MornyCoeur / ${MornySystem.VERSION}")
 			
 		}
 		
 	}
 	
-	val mornyBasicRequest =
+	/** The basic request template for Morny's HTTP requests.
+	  *
+	  * It is a expansion of [[sttp.client3.basicRequest]] with the following features:
+	  *  - A [[Headers.UserAgent.MORNY_CURRENT]] User-Agent header.
+	  *
+	  * @since 2.0.0
+	  */
+	val mornyBasicRequest: RequestT[client3.Empty, Either[String, String], Any] =
 		basicRequest
 			.header(Headers.UserAgent.MORNY_CURRENT, true)
 	

src/main/scala/cc/sukazyo/cono/morny/util/UseMath.scala

@@ -7,7 +7,7 @@ object UseMath {
 	
 	extension (self: Int) {
 		
-		def over (other: Int): Double = self.toDouble / other
+		infix def over (other: Int): Double = self.toDouble / other
 		
 	}
 	
@@ -17,7 +17,7 @@ object UseMath {
 	}
 	
 	extension (base: Int) {
-		def percentageOf (another: Int): Int =
+		infix def percentageOf (another: Int): Int =
 			Math.round((another.toDouble/base)*100).toInt
 	}
 	

src/main/scala/cc/sukazyo/cono/morny/util/UseRandom.scala

@@ -10,7 +10,7 @@ import scala.util.Random
 object UseRandom {
 	
 	class ChancePossibility[T <: Any] (val one: T) (using possibility: Double) {
-		def nor[U] (another: U): T|U =
+		infix def nor[U] (another: U): T|U =
 			if Random.nextDouble < possibility then one else another
 	}
 	
@@ -19,7 +19,7 @@ object UseRandom {
 	
 	extension (num: Double) {
 		
-		def chance_is[T <: Any] (one: T): ChancePossibility[T] =
+		infix def chance_is[T <: Any] (one: T): ChancePossibility[T] =
 			ChancePossibility(one)(using num)
 		
 	}

src/main/scala/cc/sukazyo/cono/morny/util/UseStacks.scala

@@ -4,6 +4,7 @@ import cc.sukazyo.messiva.utils.StackUtils
 
 import scala.reflect.{classTag, ClassTag}
 import scala.util.boundary
+import scala.util.boundary.break
 
 object UseStacks {
 	
@@ -11,7 +12,7 @@ object UseStacks {
 		boundary {
 			for (stack <- StackUtils.getStackTrace(1)) {
 				if (!stack.getClassName.startsWith(classTag[T].runtimeClass.getName))
-					boundary break stack
+					break(stack)
 			}
 			StackTraceElement("unknown", "unknown", "unknown", -1)
 		}

src/main/scala/cc/sukazyo/cono/morny/util/UseThrowable.scala

@@ -0,0 +1,16 @@
+package cc.sukazyo.cono.morny.util
+
+import java.io.{PrintWriter, StringWriter}
+
+object UseThrowable {
+	
+	extension (t: Throwable) {
+		
+		def toLogString: String =
+			val stackTrace = StringWriter()
+			t `printStackTrace` PrintWriter(stackTrace)
+			stackTrace toString
+		
+	}
+	
+}

src/main/scala/cc/sukazyo/cono/morny/util/schedule/Scheduler.scala

@@ -93,14 +93,14 @@ class Scheduler {
 					case readyToRun: Task =>
 						
 						runtimeStatus = State.RUNNING
-						this setName readyToRun.name
+						this `setName` readyToRun.name
 						
 						try {
 							readyToRun.main
 						} catch case _: (Exception | Error) => {}
 						
 						runtimeStatus = State.RUNNING_POST
-						this setName s"${readyToRun.name}#post"
+						this `setName` s"${readyToRun.name}#post"
 						
 						// this if is used for check if post effect need to be
 						//  run. It is useless since the wait/notify changes.
@@ -117,7 +117,7 @@ class Scheduler {
 						}
 						
 //						currentRunning = null
-						this setName runnerName
+						this `setName` runnerName
 						
 					case needToWaitMillis: EpochMillis =>
 						runtimeStatus = State.WAITING
@@ -133,7 +133,7 @@ class Scheduler {
 		}
 		
 	}
-	runtime setName runnerName
+	runtime `setName` runnerName
 	runtime.start()
 	
 	/** Name of the scheduler runner.
@@ -179,7 +179,7 @@ class Scheduler {
 	  *         succeed removed from task queue.
 	  */
 	def cancel (task: Task): Boolean =
-		taskList synchronized:
+		taskList.synchronized:
 			try taskList remove task
 			finally taskList.notifyAll()
 	
@@ -208,7 +208,7 @@ class Scheduler {
 	  * to make the scheduler avoid fails when machine fall asleep or some else conditions.
 	  */
 	def notifyIt(): Unit =
-		taskList synchronized:
+		taskList.synchronized:
 			taskList.notifyAll()
 	
 	/** Stop the scheduler's runner, no matter how much task is not run yet.

src/main/scala/cc/sukazyo/cono/morny/util/tgapi/InputCommand.scala

@@ -16,7 +16,7 @@ class InputCommand private (
 object InputCommand {
 	
 	def apply (input: Array[String]): InputCommand = {
-		val _ex = if input.nonEmpty then input(0) split ("@", 2) else Array.empty[String]
+		val _ex = if input.nonEmpty then input(0).split("@", 2) else Array.empty[String]
 		val _args = input drop 1
 		new InputCommand(
 			if _ex.length > 1 then _ex(1) else null,

src/main/scala/cc/sukazyo/cono/morny/util/tgapi/TelegramExtensions.scala

@@ -1,12 +1,13 @@
 package cc.sukazyo.cono.morny.util.tgapi
 
 import cc.sukazyo.cono.morny.util.tgapi.event.EventRuntimeException
-import cc.sukazyo.cono.morny.util.EpochDateTime.{EpochMillis, EpochSeconds}
+import cc.sukazyo.cono.morny.util.EpochDateTime.EpochSeconds
 import com.pengrad.telegrambot.TelegramBot
 import com.pengrad.telegrambot.model.*
 import com.pengrad.telegrambot.request.{BaseRequest, GetChatMember}
 import com.pengrad.telegrambot.response.BaseResponse
 
+import java.io.IOException
 import scala.annotation.targetName
 
 object TelegramExtensions {
@@ -39,7 +40,7 @@ object TelegramExtensions {
 		@throws[EventRuntimeException]
 		def exec [T <: BaseRequest[T, R], R <: BaseResponse] (request: BaseRequest[T, R], onError_message: String = ""): R = {
 			try {
-				val response = bot execute request
+				val response = bot `execute` request
 				if response isOk then return response
 				throw EventRuntimeException.ActionFailed(
 					if onError_message isEmpty then response.errorCode toString else onError_message,
@@ -229,11 +230,14 @@ object TelegramExtensions {
 		  * It needs to execute a request getting chat member, so it requires a live [[TelegramBot]] instance,
 		  * and the bot needs to be a member of this chat so that it can read the chat member.
 		  *
+		  * This method will only use the [[Chat]]'s [[Chat.id]], so it is safe to call on a [[LimboChat]].
+		  *
 		  * **Notice:** This method will execute a request to the Telegram Bot API, so it may be slow.
 		  *
 		  * @see [[memberHasPermission]]
 		  *
-		  * @param user The user that want to check if they are a member of this chat.
+		  * @param user The user that want to check if they are a member of this chat.Only its [[User.id]] will
+		  *             be used so it is safe using a [[LimboUser]].
 		  * @return [[true]] when the user is a member of this chat, [[false]] otherwise.
 		  *
 		  * @since 1.0.0
@@ -257,9 +261,14 @@ object TelegramExtensions {
 		  * | [[ChatMember.Status.left]] | -3 |
 		  * | [[ChatMember.Status.kicked]] | -5 |
 		  *
+		  * This method will only use the [[Chat]]'s [[Chat.id]], so it is safe to call on a [[LimboChat]].
+		  *
 		  * **Notice:** This method will execute a request to the Telegram Bot API, so it may be slow.
 		  *
-		  * @param user The user that wanted to check if they have the permission.
+		  * @since 1.0.0
+		  *
+		  * @param user The user that wanted to check if they have the permission. Only its [[User.id]] will
+		  *             be used so it is safe using a [[LimboUser]].
 		  * @param permission The required permission level.
 		  * @param bot A live [[TelegramBot]] that will be used to execute the getChatMember request. It
 		  *            should be a member of this chat so that can read the chat member for this method works.
@@ -288,8 +297,8 @@ object TelegramExtensions {
 						case ChatMember.Status.kicked => KICKED
 				def apply (chatMember: ChatMember): UserPermissionLevel = apply(chatMember.status)
 			
-			import Bot.*
-			val chatMember: ChatMember = (bot exec GetChatMember(chat.id, user.id)).chatMember
+			import Requests.execute
+			val chatMember: ChatMember = GetChatMember(chat.id, user.id).execute(using bot).chatMember
 			if chatMember eq null then false
 			else UserPermissionLevel(chatMember) >= UserPermissionLevel(permission)
 			
@@ -309,7 +318,65 @@ object TelegramExtensions {
 		
 	}}
 	
+	object File { extension (self: File) {
+		
+		/** Alias of [[TelegramBot.getFileContent]] */
+		@throws[IOException]
+		def getContent (using bot: TelegramBot): Array[Byte] =
+			bot.getFileContent(self)
+		
+		/** Alias of [[TelegramBot.getFullFilePath]] */
+		def getFullPath (using bot: TelegramBot): String =
+			bot.getFullFilePath(self)
+		
+	}}
+	
+	object Requests { extension [T<:BaseRequest[T,R], R<:BaseResponse] (self: BaseRequest[T,R]) {
+		/** Run this request with the given bot. Returns [[BaseResponse response]] if succeed, or throws
+		  * [[EventRuntimeException]] if run failed.
+		  * 
+		  * This method is an alias for [[Bot.exec]]
+		  * 
+		  * @since 2.0.0
+		  */
+		@throws[EventRuntimeException]
+		def unsafeExecute (using bot: TelegramBot): R =
+			import Bot.exec
+			bot.exec(self)
+		/** Run this request with the given bot and returns no matter it succeed or not.
+		  * 
+		  * Notice that if there's some client errors (like network error, etc.), this method will still
+		  * throws an Exception following the [[TelegramBot.execute]]'s behavior.
+		  * 
+		  * This method is an alias for the native [[TelegramBot.execute]].
+		  * 
+		  * @since 2.0.0
+		  */
+		def execute (using bot: TelegramBot): R =
+			bot.execute(self)
+	}}
+	
+	/** A [[User]] instance with only a [[User.id]] is defined.
+	  *
+	  * This is only for capabilities that some method need a [[User]] but only need its [[User.id]]. If
+	  * you don't have a [[User]] instance for some reason, you can use this instead.
+	  *
+	  * Many methods may crashes on this class for this is highly mutilated. Use this only the method declares
+	  * that using this is safe.
+	  *
+	  * @since 1.0.0
+	  */
 	class LimboUser (id: Long) extends User(id)
+	/** A [[Chat]] instance with only a [[Chat.id]] is defined.
+	  *
+	  * This is only for capabilities that some method need a [[Chat]] but only need its [[Chat.id]]. If
+	  * you don't have a [[Chat]] instance for some reason, you can use this instead.
+	  *
+	  * Many methods may crashes on this class for this is highly mutilated. Use this only the method declares
+	  * that using this is safe.
+	  *
+	  * @since 1.0.0
+	  */
 	class LimboChat (val _id: Long) extends Chat() {
 		override val id: java.lang.Long = _id
 	}

src/main/scala/cc/sukazyo/cono/morny/util/tgapi/formatting/TelegramParseEscape.scala

@@ -54,13 +54,13 @@ object TelegramParseEscape {
 						case "br" =>
 							result += TextNode("\n")
 						case "tg-emoji" =>
-							if elem.attributes.hasKey("emoji-id") then
+							if elem.attributes `hasKey` "emoji-id" then
 								result += produceChildNodes(elem)
 							else
 								result += TextNode(elem.text)
 						case "img" =>
-							if elem.attributes hasKey "alt" then
-								result += TextNode(s"[${elem attr "alt"}]")
+							if elem.attributes `hasKey` "alt" then
+								result += TextNode(s"[${elem.attr("alt")}]")
 						case _ =>
 							for (i <- cleanupHtml(elem.childNodes.asScala.toSeq)) result += i
 		}

src/main/scala/cc/sukazyo/cono/morny/util/time/WatchDog.scala

@@ -9,8 +9,8 @@ trait WatchDog (val isDaemonIt: Boolean = true) extends Thread {
 	val overloadMillis: DurationMillis = tickSpeedMillis + (tickSpeedMillis/2)
 	private var previousTickTimeMillis: Option[EpochMillis] = None
 	
-	this setName threadName
-	this setDaemon isDaemonIt
+	this `setName` threadName
+	this `setDaemon` isDaemonIt
 	
 	this.start()
 	

src/test/scala/cc/sukazyo/cono/morny/MornyCLI.scala

@@ -8,6 +8,8 @@ import scala.io.StdIn
 @main def MornyCLI (): Unit = {
 	
 	print("$ java -jar morny-coeur-\"+MornySystem.VERSION_FULL+\".jar ")
-	ServerMain main UniversalCommand(StdIn readLine)
+	ServerMain.main(
+		UniversalCommand(StdIn readLine)
+	)
 	
 }

src/test/scala/cc/sukazyo/cono/morny/test/daemon/MedicationTimerTest.scala

@@ -26,7 +26,7 @@ class MedicationTimerTest extends MornyTests with TableDrivenPropertyChecks {
 		
 		forAll(examples) { (current, notifyAt, useTimezone, nextNotifyTime) =>
 			val _curr = EpochMillis(current)
-			val _tz = ZoneOffset of useTimezone
+			val _tz = ZoneOffset `of` useTimezone
 			val _next = EpochMillis(nextNotifyTime)
 			
 			s"at time [$_curr], and need to be notify at hours ${notifyAt.mkString(",")} with $_tz :" - {

src/test/scala/cc/sukazyo/cono/morny/test/utils/EpochDateTimeTest.scala

@@ -19,7 +19,7 @@ class EpochDateTimeTest extends MornyTests with TableDrivenPropertyChecks {
 			
 			forAll(examples) { (epochSeconds, epochMillis) =>
 				s"EpochSeconds($epochSeconds) should be converted to EpochMillis($epochMillis)" in {
-					(EpochMillis fromEpochSeconds epochSeconds) shouldEqual epochMillis
+					(EpochMillis fromSeconds epochSeconds) shouldEqual epochMillis
 				}
 			}
 			
@@ -42,7 +42,7 @@ class EpochDateTimeTest extends MornyTests with TableDrivenPropertyChecks {
 			
 			forAll(examples) { (epochMillis, epochDays) =>
 				s"EpochMillis($epochMillis) should be converted to EpochDays($epochDays)" in {
-					(EpochDays fromEpochMillis epochMillis) shouldEqual epochDays
+					(EpochDays fromMillis epochMillis) shouldEqual epochDays
 				}
 			}
 			

src/test/scala/cc/sukazyo/cono/morny/test/utils/schedule/TaskBasicTest.scala

@@ -32,7 +32,7 @@ class TaskBasicTest extends MornyTests {
 	
 	"task can be sync executed by calling its main method." taggedAs Slow in {
 		
-		Thread.currentThread setName "parent-thread"
+		Thread.currentThread `setName` "parent-thread"
 		val data = StringBuilder("")
 		val task = Task("some-task", 0L, {
 			Thread.sleep(100)