Listen for new servermessages in MessageParser

Signed-off-by: observer <admin@shr4pnel.com>

src/main/kotlin/com/shr4pnel/ferretirc/net/MessageParser.kt

@@ -2,6 +2,8 @@ package com.shr4pnel.ferretirc.net
 
 import com.shr4pnel.ferretirc.net.messages.ServerMessage
 import io.github.oshai.kotlinlogging.KotlinLogging
+import io.ktor.http.parameters
+import io.ktor.network.selector.SelectInterest
 import io.ktor.util.toUpperCasePreservingASCIIRules
 import kotlinx.coroutines.channels.Channel
 
@@ -10,22 +12,49 @@ class MessageParser(val incoming: Channel<String>) {
     val incomingParsedMessages = Channel<ServerMessage>()
 
     private companion object MessageBuilder {
+        val logger = KotlinLogging.logger("MessageParser.MessageBuilder")
+        fun getTrailingParameterIndex(params: List<String>) = params.indexOfLast { it.startsWith(":") }
+
         sealed interface Command {
             fun toServerMessage(): ServerMessage
 
             class NamedCommand(val name: String, val parameters: List<String>) : Command {
                 override fun toServerMessage(): ServerMessage {
+                    logger.debug { "Attempting to parse ${name.toUpperCasePreservingASCIIRules()}, with params $parameters" }
+
                     return when (name.toUpperCasePreservingASCIIRules()) {
                         // PONG :PREFIX COMMAND HOSTNAME :TOKEN
                         "PONG" -> {
-                            val tokenIndex = parameters.indexOfLast { it.contains(":") }
+                            val tokenIndex = getTrailingParameterIndex(parameters)
                             if (tokenIndex != -1) ServerMessage.Pong(
                                 parameters.subList(tokenIndex, parameters.size).joinToString(" ").removePrefix(":")
                             )
                             else ServerMessage.Pong()
                         }
+                        // MODE :PREFIX NICK :MODES
+                        "MODE" -> {
+                            ServerMessage.Mode(parameters.first(), parameters.last().removePrefix(":")) // TODO MODE, CHANMODE, LOCALMODE
+                        }
 
-                        else -> ServerMessage.UNIMPLEMENTED("$name ${parameters.joinToString(" ")}")
+                        "NOTICE", "PRIVMSG" -> {
+                            val cmd = name.toUpperCasePreservingASCIIRules()
+                            val trailingIndex = getTrailingParameterIndex(parameters)
+                            if (trailingIndex < 1) {
+                                logger.warn { "Received malformed $cmd. Returning unimplemented as fallback." }
+                                return ServerMessage.UNIMPLEMENTED("$cmd ${parameters.joinToString(" ")}")
+                            }
+                            val targets = parameters.subList(0, trailingIndex - 1)
+                            if (cmd == "NOTICE")
+                                ServerMessage.Notice(targets, "")
+                            else
+                                ServerMessage.PrivMsg(targets, "")
+
+                        }
+
+                        else -> {
+                            logger.warn { "$name left unparsed" }
+                            ServerMessage.UNIMPLEMENTED("$name ${parameters.joinToString(" ")}")
+                        }
                     }
                 }
             }
@@ -76,7 +105,7 @@ class MessageParser(val incoming: Channel<String>) {
 
     suspend fun start() {
         for (msg in incoming) {
-            logger.debug { msg }
+//            logger.debug { msg }
             incomingParsedMessages.send(build(msg))
         }
     }