Basic play functionality

1 files changed, 38 insertions, 0 deletions

diff --git a/src/utils/channels.ts b/src/utils/channels.ts
new file mode 100644
index 0000000..d138c45
--- /dev/null
+++ b/src/utils/channels.ts
@@ -0,0 +1,38 @@
+import {Guild, VoiceChannel} from 'discord.js';
+
+export const getMostPopularVoiceChannel = (guild: Guild, min = 0): VoiceChannel => {
+  interface PopularResult {
+    n: number;
+    channel: VoiceChannel | null;
+  }
+
+  const voiceChannels: PopularResult[] = [];
+
+  for (const [_, channel] of guild.channels.cache) {
+    if (channel.type === 'voice' && channel.members.size >= min) {
+      voiceChannels.push({
+        channel: channel as VoiceChannel,
+        n: channel.members.size
+      });
+    }
+  }
+
+  if (voiceChannels.length === 0) {
+    throw new Error('No voice channels meet minimum size');
+  }
+
+  // Find most popular channel
+  const popularChannel = voiceChannels.reduce((popular: PopularResult, elem: PopularResult) => {
+    if (elem.n > popular.n) {
+      return elem;
+    }
+
+    return popular;
+  }, {n: -1, channel: null});
+
+  if (popularChannel.channel) {
+    return popularChannel.channel;
+  }
+
+  throw new Error();
+};