Add UnknownCommandEvent

Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>

paper-server/patches/sources/net/minecraft/commands/CommandSourceStack.java.patch

@@ -17,7 +17,7 @@
  
      public CommandSourceStack(CommandSource output, Vec3 pos, Vec2 rot, ServerLevel world, int level, String name, Component displayName, MinecraftServer server, @Nullable Entity entity) {
          this(output, pos, rot, world, level, name, displayName, server, entity, false, CommandResultCallback.EMPTY, EntityAnchorArgument.Anchor.FEET, CommandSigningContext.ANONYMOUS, TaskChainer.immediate(server));
-@@ -171,9 +174,23 @@
+@@ -171,8 +174,22 @@
  
      @Override
      public boolean hasPermission(int level) {
@@ -30,18 +30,17 @@
 +
          return this.permissionLevel >= level;
      }
- 
++
 +    // CraftBukkit start
 +    public boolean hasPermission(int i, String bukkitPermission) {
 +        // World is null when loading functions
 +        return ((this.getLevel() == null || !this.getLevel().getCraftServer().ignoreVanillaPermissions) && this.permissionLevel >= i) || this.getBukkitSender().hasPermission(bukkitPermission);
 +    }
 +    // CraftBukkit end
-+
+ 
      public Vec3 getPosition() {
          return this.worldPosition;
-     }
-@@ -302,13 +319,13 @@
+@@ -302,21 +319,26 @@
              while (iterator.hasNext()) {
                  ServerPlayer entityplayer = (ServerPlayer) iterator.next();
  
@@ -57,7 +56,21 @@
              this.server.sendSystemMessage(ichatmutablecomponent);
          }
  
-@@ -400,4 +417,10 @@
+     }
+ 
+     public void sendFailure(Component message) {
++        // Paper start - Add UnknownCommandEvent
++        this.sendFailure(message, true);
++    }
++    public void sendFailure(Component message, boolean withStyle) {
++        // Paper end - Add UnknownCommandEvent
+         if (this.source.acceptsFailure() && !this.silent) {
+-            this.source.sendSystemMessage(Component.empty().append(message).withStyle(ChatFormatting.RED));
++            this.source.sendSystemMessage(withStyle ? Component.empty().append(message).withStyle(ChatFormatting.RED) : message); // Paper - Add UnknownCommandEvent
+         }
+ 
+     }
+@@ -400,4 +422,10 @@
      public boolean isSilent() {
          return this.silent;
      }