refactor(helpers): separate functions into files (#667)

* refactor(helpers): separate functions into files

* idk

* idk

src/handlers/roles/GUILD_ROLE_DELETE.ts

@@ -0,0 +1,28 @@
+import { eventHandlers } from "../../bot.ts";
+import { DiscordPayload, GuildRoleDeletePayload } from "../../types/mod.ts";
+import { cacheHandlers } from "../../cache.ts";
+
+export async function handleGuildRoleDelete(data: DiscordPayload) {
+  const payload = data.d as GuildRoleDeletePayload;
+  const guild = await cacheHandlers.get("guilds", payload.guild_id);
+  if (!guild) return;
+
+  const cachedRole = guild.roles.get(payload.role_id)!;
+  guild.roles.delete(payload.role_id);
+
+  if (cachedRole) eventHandlers.roleDelete?.(guild, cachedRole);
+
+  // For bots without GUILD_MEMBERS member.roles is never updated breaking permissions checking.
+  cacheHandlers.forEach("members", (member) => {
+    // Not in the relevant guild so just skip.
+    if (!member.guilds.has(guild.id)) return;
+
+    member.guilds.forEach((g) => {
+      // Member does not have this role
+      if (!g.roles.includes(payload.role_id)) return;
+      // Remove this role from the members cache
+      g.roles = g.roles.filter((id) => id !== payload.role_id);
+      cacheHandlers.set("members", member.id, member);
+    });
+  });
+}