use async http calls for Answer Overflow

Author: danthe1st

src/main/java/net/discordjug/javabot/systems/help/AnswerOverflowService.java

@@ -1,11 +1,9 @@
 package net.discordjug.javabot.systems.help;
 
-import java.io.IOException;
 import java.net.URI;
 import java.net.http.HttpClient;
 import java.net.http.HttpRequest;
 import java.net.http.HttpRequest.BodyPublishers;
-import java.net.http.HttpResponse;
 import java.net.http.HttpResponse.BodyHandlers;
 
 import lombok.extern.slf4j.Slf4j;
@@ -21,13 +19,18 @@ public AnswerOverflowService(BotConfig config) {
 		apiKey = config.getSystems().getAnswerOverflowApiKey();
 	}
 
+	/**
+	 * Marks a message as the answer of a forum post with Answer Overflow.
+	 * @param postId The Discord ID of the forum post
+	 * @param messageId The Discord ID of the message that should be marked as the answer.
+	 */
 	public void markAnswer(long postId, long messageId) {
 		if (apiKey == null || apiKey.isBlank()) {
 			return;
 		}
 
 		try (HttpClient client = HttpClient.newHttpClient()) {
-			HttpResponse<String> response = client.send(
+			client.sendAsync(
 					HttpRequest.newBuilder(URI.create("https://www.answeroverflow.com/api/v1/messages/" + postId))
 						.header("x-api-key", apiKey)
 						.header("Content-Type", "application/json")
@@ -37,14 +40,16 @@ public void markAnswer(long postId, long messageId) {
 								}
 								""".formatted(messageId)))
 					.build(),
-					BodyHandlers.ofString());
-			if (response.statusCode() != 200) {
-				log.warn("Answer Overflow responded with unexpected status code {}, post ID: {}, message ID: {}, body: {}", response.statusCode(), postId, messageId, response.body());
-			}
-		} catch (IOException e) {
-			log.error("An exception occured trying to mark a post as an answer.", e);
-		} catch (InterruptedException e) {
-			Thread.currentThread().interrupt();
-		};
+					BodyHandlers.ofString())
+				.thenAccept(response -> {
+					if (response.statusCode() != 200) {
+						log.warn("Answer Overflow responded with unexpected status code {}, post ID: {}, message ID: {}, body: {}", response.statusCode(), postId, messageId, response.body());
+					}
+				})
+				.exceptionally(e -> {
+					log.error("An exception occured trying to mark a post as an answer.", e);
+					return null;
+				});
+		}
 	}
 }