From 609ec18058778cafca87ae127ec19f948abd50c6 Mon Sep 17 00:00:00 2001
From: naskya <m@naskya.net>
Date: Thu, 25 Jan 2024 05:23:39 +0900
Subject: [PATCH] chore: add utility for unsafe type casting

---
 packages/backend/src/prelude/await-all.ts                 | 4 +++-
 packages/backend/src/prelude/unsafe-cast.ts               | 4 ++++
 .../src/server/api/endpoints/admin/set-emoji-moderator.ts | 8 +++-----
 3 files changed, 10 insertions(+), 6 deletions(-)
 create mode 100644 packages/backend/src/prelude/unsafe-cast.ts

diff --git a/packages/backend/src/prelude/await-all.ts b/packages/backend/src/prelude/await-all.ts
index ce11eb87b..d81870a57 100644
--- a/packages/backend/src/prelude/await-all.ts
+++ b/packages/backend/src/prelude/await-all.ts
@@ -1,10 +1,12 @@
+import { unsafeCast } from "./unsafe-cast.js";
+
 export type Promiseable<T> = {
 	[K in keyof T]: Promise<T[K]> | T[K];
 };
 
 export async function awaitAll<T>(obj: Promiseable<T>): Promise<T> {
 	const target = {} as T;
-	const keys = Object.keys(obj) as unknown as (keyof T)[];
+	const keys = unsafeCast<(keyof T)[]>(Object.keys(obj));
 	const values = Object.values(obj) as any[];
 
 	const resolvedValues = await Promise.all(
diff --git a/packages/backend/src/prelude/unsafe-cast.ts b/packages/backend/src/prelude/unsafe-cast.ts
new file mode 100644
index 000000000..f7e251fa3
--- /dev/null
+++ b/packages/backend/src/prelude/unsafe-cast.ts
@@ -0,0 +1,4 @@
+// unsafe type cast
+export function unsafeCast<T>(val: unknown): T {
+	return val as T;
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/set-emoji-moderator.ts b/packages/backend/src/server/api/endpoints/admin/set-emoji-moderator.ts
index 0bc79c03b..8a4c2f161 100644
--- a/packages/backend/src/server/api/endpoints/admin/set-emoji-moderator.ts
+++ b/packages/backend/src/server/api/endpoints/admin/set-emoji-moderator.ts
@@ -1,6 +1,8 @@
 import { Users } from "@/models/index.js";
 import { publishInternalEvent } from "@/services/stream.js";
 import define from "../../define.js";
+import type { EmojiModPerm } from "@/models/entities/user.js";
+import { unsafeCast } from "@/prelude/unsafe-cast.js";
 
 export const meta = {
 	tags: ["admin"],
@@ -31,12 +33,8 @@ export default define(meta, paramDef, async (ps) => {
 		);
 	}
 
-	const _emojiModPerm =
-		(ps.emojiModPerm as "unauthorized" | "add" | "mod" | "full") ??
-		"unauthorized";
-
 	await Users.update(user.id, {
-		emojiModPerm: _emojiModPerm,
+		emojiModPerm: unsafeCast<EmojiModPerm>(ps.emojiModPerm),
 	});
 
 	publishInternalEvent("userChangeModeratorState", {