Fix console channel logging errors constantly when not configured

common/src/main/java/com/discordsrv/common/config/main/ConsoleConfig.java

@@ -24,6 +24,7 @@ public class ConsoleConfig {
         public String lineFormat = "[%log_time:'ccc HH:mm:ss zzz'%] [%log_level%] [%logger_name%] %message%";
 
         @Comment("The mode for the console output, available options are:\n"
+                + "- off: Turn off console appending\n"
                 + "- ansi: A colored ansi code block\n"
                 + "- log: A \"accesslog\" code block\n"
                 + "- diff: A \"diff\" code block highlighting warnings and errors with different colors\n"
@@ -87,6 +88,9 @@ public class ConsoleConfig {
             );
         }
 
+        @Comment("If command execution is enabled")
+        public boolean enabled = true;
+
         @Comment("At least one condition has to match to allow execution")
         public List<GameCommandFilterConfig> filters = new ArrayList<>();
 
@@ -96,6 +100,7 @@ public class ConsoleConfig {
     }
 
     public enum OutputMode {
+        OFF(null, null),
         ANSI("```ansi\n", "```"),
         LOG("```accesslog\n", "```"),
         DIFF("```diff\n", "```"),

common/src/main/java/com/discordsrv/common/console/ConsoleModule.java

@@ -4,12 +4,14 @@ import com.discordsrv.api.DiscordSRVApi;
 import com.discordsrv.api.discord.connection.details.DiscordGatewayIntent;
 import com.discordsrv.common.DiscordSRV;
 import com.discordsrv.common.config.main.ConsoleConfig;
+import com.discordsrv.common.config.main.generic.DestinationConfig;
 import com.discordsrv.common.console.entry.LogEntry;
 import com.discordsrv.common.logging.LogAppender;
 import com.discordsrv.common.logging.LogLevel;
 import com.discordsrv.common.logging.NamedLogger;
 import com.discordsrv.common.logging.backend.LoggingBackend;
 import com.discordsrv.common.module.type.AbstractModule;
+import org.apache.commons.lang3.StringUtils;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -48,6 +50,16 @@ public class ConsoleModule extends AbstractModule<DiscordSRV> implements LogAppe
 
         List<ConsoleConfig> configs = discordSRV.config().console;
         for (ConsoleConfig config : configs) {
+            DestinationConfig.Single destination = config.channel;
+            if (destination.channelId == 0L && StringUtils.isEmpty(destination.threadName)) {
+                logger().debug("Skipping a console handler due to lack of channel");
+                continue;
+            }
+            if (config.appender.outputMode == ConsoleConfig.OutputMode.OFF && !config.commandExecution.enabled) {
+                logger().debug("Skipping console handler because output mode is OFF and command execution is disabled");
+                continue;
+            }
+
             handlers.add(new SingleConsoleHandler(discordSRV, logger(), config));
         }
     }

common/src/main/java/com/discordsrv/common/console/SingleConsoleHandler.java

@@ -42,7 +42,7 @@ public class SingleConsoleHandler {
     private final DiscordSRV discordSRV;
     private final Logger logger;
     private final ConsoleConfig config;
-    private final Queue<LogEntry> queue = new LinkedBlockingQueue<>();
+    private final Queue<LogEntry> queue;
     private Future<?> queueProcessingFuture;
     private boolean shutdown = false;
 
@@ -61,6 +61,7 @@ public class SingleConsoleHandler {
         this.discordSRV = discordSRV;
         this.logger = logger;
         this.config = config;
+        this.queue = config.appender.outputMode != ConsoleConfig.OutputMode.OFF ? new LinkedBlockingQueue<>() : null;
         this.messageCache = config.appender.useEditing ? new ArrayList<>() : null;
 
         timeQueueProcess();
@@ -161,6 +162,10 @@ public class SingleConsoleHandler {
     }
 
     public void queue(LogEntry entry) {
+        if (queue == null) {
+            return;
+        }
+
         queue.offer(entry);
     }
 
@@ -187,6 +192,9 @@ public class SingleConsoleHandler {
         if (shutdown) {
             return;
         }
+        if (config.appender.outputMode == ConsoleConfig.OutputMode.OFF) {
+            return;
+        }
         this.queueProcessingFuture = discordSRV.scheduler().runLater(this::processQueue, 2, TimeUnit.SECONDS);
     }
 
@@ -290,7 +298,8 @@ public class SingleConsoleHandler {
                     )
                     .thenApply(channels -> {
                         if (channels.isEmpty()) {
-                            throw new IllegalStateException("No channel");
+                            // Nowhere to send to
+                            return null;
                         }
 
                         DiscordGuildMessageChannel channel = channels.get(0);