Add a guaranteed mention. Begin permission work

src/main/kotlin/nl/voidcorp/discord/command/Command.kt

@@ -10,6 +10,7 @@ abstract class Command(
     val name: String,
     val helpMesage: String = "",
     val usage: String = "",
+    val commandGroup: CommandLevel = CommandGroup.VERIFIED,
     val aliases: List<String> = emptyList(),
     val location: CommandSource = CommandSource.BOTH,
     val permissions: Set<Permission> = emptySet()
@@ -41,15 +42,17 @@ abstract class Command(
         }
     }
 
-    private fun guildStuff(event: MessageReceivedEvent, str: String): CommandResult {
-        val intersect = permissions.intersect(event.member?.permissions as Iterable<Permission>)
-        return if ((intersect.isNotEmpty() or permissions.isEmpty())) {
+    private fun guildStuff(event: MessageReceivedEvent, str: String) =
+        if ((permissions.intersect(event.member?.permissions as Iterable<Permission>).isNotEmpty() or permissions.isEmpty())) try {
             handle(CommandMessage(event, translateCommandline(str)))
+        } catch (e: Exception) {
+            CommandResult.ERROR
         } else CommandResult.PERMISSIONS
-    }
 
-    private fun privateStuff(event: MessageReceivedEvent, str: String): CommandResult {
-        return handle(CommandMessage(event, translateCommandline(str)))
+    private fun privateStuff(event: MessageReceivedEvent, str: String) = try {
+        handle(CommandMessage(event, translateCommandline(str)))
+    } catch (e: Exception) {
+        CommandResult.ERROR
     }
 
     abstract fun handle(event: CommandMessage): CommandResult

src/main/kotlin/nl/voidcorp/discord/command/CommandGroup.kt

@@ -1,7 +1,8 @@
 package nl.voidcorp.discord.command
 
-enum class CommandGroup {
-    GENERAL,
-    ADMIN,
-    MEME
+object CommandGroup {
+    val ADMIN = CommandLevel("Administrator")
+    val MODERATOR = CommandLevel("Moderator", ADMIN)
+    val VERIFIED = CommandLevel("Verified", MODERATOR)
+    val UNVERIFIED = CommandLevel("Unverified", VERIFIED)
 }

src/main/kotlin/nl/voidcorp/discord/command/CommandLevel.kt

@@ -0,0 +1,3 @@
+package nl.voidcorp.discord.command
+
+data class CommandLevel(val levelNAme: String, val parent: CommandLevel? = null)

src/main/kotlin/nl/voidcorp/discord/commands/Echo.kt

@@ -6,9 +6,12 @@ import nl.voidcorp.discord.command.CommandResult
 import org.springframework.stereotype.Service
 
 @Service
-class Echo : Command("echo") {
+class Echo : Command("echo", usage = "echo whatever") {
     override fun handle(event: CommandMessage): CommandResult {
-        event.reply(event.params.drop(1).joinToString(" "))
+        val msg = event.params.drop(1).joinToString(" ")
+        if (msg.isEmpty())
+            return CommandResult.PARAMETERS
+        event.reply(msg)
         return CommandResult.SUCCESS
     }
 }

src/main/kotlin/nl/voidcorp/discord/commands/Nice.kt

@@ -6,9 +6,9 @@ import nl.voidcorp.discord.command.CommandResult
 import org.springframework.stereotype.Service
 
 @Service
-class Yeet : Command("nice") {
+class Nice : Command("nice") {
     override fun handle(event: CommandMessage): CommandResult {
-        event.reply("nice")
+        event.reply("_nice_")
         return CommandResult.SUCCESS
     }
 }

src/main/kotlin/nl/voidcorp/discord/events/CommandListener.kt

@@ -3,9 +3,9 @@ package nl.voidcorp.discord.events
 import net.dv8tion.jda.api.MessageBuilder
 import net.dv8tion.jda.api.entities.ChannelType
 import net.dv8tion.jda.api.events.message.MessageReceivedEvent
-import net.dv8tion.jda.api.events.message.MessageUpdateEvent
 import net.dv8tion.jda.api.hooks.ListenerAdapter
 import nl.voidcorp.discord.command.Command
+import nl.voidcorp.discord.command.CommandMessage
 import nl.voidcorp.discord.command.CommandResult
 import nl.voidcorp.discord.creator
 import nl.voidcorp.discord.logger
@@ -26,10 +26,14 @@ class CommandListener(
     override fun onMessageReceived(event: MessageReceivedEvent) {
         if (event.author.isBot) return
         val prefix: String = when {
+            event.message.contentRaw.startsWith("<@${event.jda.selfUser.id}>") -> "<@${event.jda.selfUser.id}>"
+            event.message.contentRaw.startsWith("<@!${event.jda.selfUser.id}>") -> "<@!${event.jda.selfUser.id}>"
             event.channelType == ChannelType.TEXT -> Command.settings.getPrefix(event.guild)
             event.channelType == ChannelType.PRIVATE -> Command.settings.prefix
             else -> return
         }
+
+
         if (!event.message.contentRaw.startsWith(prefix)) return
 
         val res = commands.map { it to it.onCommand(event, prefix) }.filter { it.second != CommandResult.NOPE }
@@ -47,11 +51,27 @@ class CommandListener(
             event.channel.sendMessage(mb.append(" since this shouldn't happen...").build()).queue()
         } else if (res.isEmpty()) {
             event.channel.sendMessage("I don't seem to know this command...").queue()
+        } else {
+            val (command, result) = res[0]
+            when (result) {
+                CommandResult.SUCCESS -> Unit
+                CommandResult.ERROR -> CommandMessage(
+                    event,
+                    listOf()
+                ).reply(MessageBuilder("There was an error executing this command").build())
+                CommandResult.PERMISSIONS -> CommandMessage(event, listOf()).reply(
+                    MessageBuilder("Sorry, but you don't seem to have the needed permissions to execute this command...").build()
+                )
+                CommandResult.NOPE -> logger.warn("The command ${command.name} somehow responded with a nope?")
+                CommandResult.PARAMETERS -> CommandMessage(event, listOf()).reply(
+                    MessageBuilder("Sorry, but you are missing some parameters: `${command.usage}`").build()
+                )
+            }
         }
     }
 
-    override fun onMessageUpdate(event: MessageUpdateEvent) =
-        onMessageReceived(MessageReceivedEvent(event.jda, event.messageIdLong, event.message))
+//    override fun onMessageUpdate(event: MessageUpdateEvent) =
+//        onMessageReceived(MessageReceivedEvent(event.jda, event.messageIdLong, event.message))
 
 
 }