Adding frontend-exception handler utility

src/main/java/dev/salmonllama/fsbot/utilities/DiscordUtilities.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2020. Aleksei Gryczewski
+ * All rights reserved.
+ */
+
+package dev.salmonllama.fsbot.utilities;
+
+import dev.salmonllama.fsbot.config.BotConfig;
+import dev.salmonllama.fsbot.guthix.CommandContext;
+import org.javacord.api.entity.message.embed.EmbedBuilder;
+
+import java.awt.*;
+
+public class DiscordUtilities {
+    public static void handleException(Exception e, CommandContext ctx) {
+        EmbedBuilder embed = new EmbedBuilder()
+                .setTitle("Exception caught in command thread:")
+                .addField("message:", e.getMessage())
+                .setColor(Color.RED);
+
+        logException(e, ctx);
+        ctx.reply(embed);
+    }
+
+    private static void logException(Exception e, CommandContext ctx) {
+        EmbedBuilder embed = new EmbedBuilder()
+                .setTitle("Runtime error:")
+                .addField("Message:", e.getMessage())
+                .setColor(Color.RED);
+
+        ctx.getApi().getTextChannelById(BotConfig.ACTIVITY_LOG).ifPresent(channel -> channel.sendMessage(embed));
+    }
+}