Added basic login

Signed-off-by: Louis Vallat <louis@louis-vallat.xyz>

build.gradle

@@ -31,5 +31,6 @@ repositories {
 }
 
 dependencies {
+    implementation 'com.discord4j:discord4j-core:3.1.1'
     implementation 'ch.qos.logback:logback-classic:1.2.3'
 }

src/main/java/xyz/vallat/louis/MovieQuoteBot.java

@@ -1,19 +1,37 @@
 package xyz.vallat.louis;
 
+import discord4j.core.DiscordClientBuilder;
+import discord4j.core.GatewayDiscordClient;
+import discord4j.core.event.domain.lifecycle.ReadyEvent;
+import discord4j.core.event.domain.message.MessageCreateEvent;
+import discord4j.core.object.entity.Message;
+import discord4j.core.object.entity.User;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public class MovieQuoteBot {
 
-    private static final Logger logger = LoggerFactory.getLogger(MovieQuoteBot.class.getCanonicalName());
     public static final String DISCORD_TOKEN_ENVIRONMENT = "DISCORD_TOKEN";
+    private static final Logger logger = LoggerFactory.getLogger(MovieQuoteBot.class.getCanonicalName());
 
     public static void main(String[] args) {
         if (System.getenv(DISCORD_TOKEN_ENVIRONMENT) == null && args.length == 0) {
             logger.error("Missing token. Exiting.");
             System.exit(1);
         }
-        logger.debug("Hello World!");
+
+        GatewayDiscordClient client = DiscordClientBuilder.create(
+                System.getenv(DISCORD_TOKEN_ENVIRONMENT) == null ? args[0] : System.getenv(DISCORD_TOKEN_ENVIRONMENT)
+        ).build().login().block();
+
+        assert client != null;
+        client.getEventDispatcher().on(ReadyEvent.class)
+                .subscribe(event -> {
+                    User self = event.getSelf();
+                    logger.info("Logged in as {}#{}.", self.getUsername(), self.getDiscriminator());
+                });
+
+        client.onDisconnect().block();
     }
 
 }

src/main/resources/logback.xml

@@ -16,7 +16,7 @@
     <!-- Log to a file as well, including size and time based rolling -->
     <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
         <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
-            <fileNamePattern>logs/d4j.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
+            <fileNamePattern>logs/mqb.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
             <maxFileSize>100MB</maxFileSize>
             <maxHistory>90</maxHistory>
         </rollingPolicy>
@@ -35,7 +35,7 @@
 
     <!-- Here you can set the base logger level. If DEBUG is too chatty for you, you can use INFO -->
     <!-- Possible options are: ALL, TRACE, DEBUG, INFO, WARN, ERROR, OFF -->
-    <root level="ALL">
+    <root level="DEBUG">
         <appender-ref ref="CONSOLE"/>
         <appender-ref ref="FILE"/>
     </root>