From 60c49f18389ff625177a57277ef8f292a31097bf Mon Sep 17 00:00:00 2001
From: Armand Philippot <git@armandphilippot.com>
Date: Sat, 28 Oct 2023 17:12:58 +0200
Subject: refactor(providers,hooks): rewrite PrismThemeProvider & usePrismTheme

* reuse Theme provider logic
* move DOM mutation from provider to hook
* add a script to init theme before page load
---
 src/utils/helpers/themes.ts | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/utils/helpers')

diff --git a/src/utils/helpers/themes.ts b/src/utils/helpers/themes.ts
index 8ef3a19..66c0652 100644
--- a/src/utils/helpers/themes.ts
+++ b/src/utils/helpers/themes.ts
@@ -1,3 +1,6 @@
+import type { Theme } from '../../types';
+import { VALID_THEMES } from '../constants';
+
 /**
  * Check if the user prefers dark color scheme.
  *
@@ -16,3 +19,7 @@ export const getThemeFromSystem = () => {
   if (prefersDarkScheme()) return 'dark';
   return 'light';
 };
+
+export const themeValidator = (value: unknown): value is Theme =>
+  typeof value === 'string' &&
+  (VALID_THEMES as readonly string[]).includes(value);
-- 
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