🌟 feat: Implement getPublicChannels function to filter accessible text channels

Author: hmd-ali

src/util/channel.ts

@@ -0,0 +1,15 @@
+import { ChannelType, type Guild, PermissionFlagsBits, type TextChannel } from 'discord.js';
+
+export const getPublicChannels = (guild: Guild) => {
+  return guild.channels.cache.filter(
+    (channel): channel is TextChannel =>
+      channel.type === ChannelType.GuildText &&
+      channel
+        .permissionsFor(guild.roles.everyone)
+        ?.has(
+          PermissionFlagsBits.ViewChannel |
+            PermissionFlagsBits.ReadMessageHistory |
+            PermissionFlagsBits.SendMessages
+        )
+  );
+};