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

* refactor(helpers): separate functions into files

* idk

* idk

src/helpers/members/kick_member.ts

@@ -0,0 +1,32 @@
+import { botID } from "../../bot.ts";
+import { RequestManager } from "../../rest/request_manager.ts";
+import { Errors } from "../../types/mod.ts";
+import { endpoints } from "../../util/constants.ts";
+import {
+  highestRole,
+  requireBotGuildPermissions,
+} from "../../util/permissions.ts";
+
+/** Kick a member from the server */
+export async function kick(guildID: string, memberID: string, reason?: string) {
+  const botsHighestRole = await highestRole(guildID, botID);
+  const membersHighestRole = await highestRole(guildID, memberID);
+  if (
+    botsHighestRole && membersHighestRole &&
+    botsHighestRole.position <= membersHighestRole.position
+  ) {
+    throw new Error(Errors.BOTS_HIGHEST_ROLE_TOO_LOW);
+  }
+
+  await requireBotGuildPermissions(guildID, ["KICK_MEMBERS"]);
+
+  const result = await RequestManager.delete(
+    endpoints.GUILD_MEMBER(guildID, memberID),
+    { reason },
+  );
+
+  return result;
+}
+
+// aliases
+export { kick as kickMember };