added join and leave voice channel triggers

backend/src/plugins/Automod/triggers/joinVoiceChannel.ts

@@ -0,0 +1,37 @@
+import * as t from "io-ts";
+import { automodTrigger } from "../helpers";
+
+interface JoinVoiceChannelResult {
+  matchedChannelId: string;
+}
+
+export const JoinVoiceChannelTrigger = automodTrigger<JoinVoiceChannelResult>()({
+  configType: t.union([t.string, t.array(t.string)]),
+
+  defaultConfig: "",
+
+  async match({ triggerConfig, context }) {
+    if (!context.member || !context.voiceChannel) {
+      return;
+    }
+
+    const triggerChannels = Array.isArray(triggerConfig) ? triggerConfig : [triggerConfig];
+    if (!triggerChannels.includes(context.voiceChannel.id)) {
+      return;
+    }
+
+    return {
+      extra: {
+        matchedChannelId: context.voiceChannel.id,
+      },
+    };
+  },
+
+  renderMatchInformation({ matchResult, pluginData, contexts }) {
+    const channel = pluginData.guild.channels.get(matchResult.extra.matchedChannelId);
+    const channelName = channel?.name || "Unknown";
+    const member = contexts[0].member!;
+    const memberName = `**${member.user.username}#${member.user.discriminator}** (\`${member.id}\`)`;
+    return `${memberName} has joined the ${channelName} (\`${matchResult.extra.matchedChannelId}\`) voice channel`;
+  },
+});