Refactor for i18n, CMS integration, and project slugs; enhance admin & analytics

Co-authored-by: dennis <dennis@konkol.net>

app/components/ConsentProvider.tsx

@@ -0,0 +1,68 @@
+"use client";
+
+import React, { createContext, useCallback, useContext, useEffect, useMemo, useState } from "react";
+
+export type ConsentState = {
+  analytics: boolean;
+  chat: boolean;
+};
+
+const COOKIE_NAME = "dk0_consent_v1";
+
+function readConsentFromCookie(): ConsentState | null {
+  if (typeof document === "undefined") return null;
+  const match = document.cookie
+    .split(";")
+    .map((c) => c.trim())
+    .find((c) => c.startsWith(`${COOKIE_NAME}=`));
+  if (!match) return null;
+  const value = decodeURIComponent(match.split("=").slice(1).join("="));
+  try {
+    const parsed = JSON.parse(value) as Partial<ConsentState>;
+    return {
+      analytics: !!parsed.analytics,
+      chat: !!parsed.chat,
+    };
+  } catch {
+    return null;
+  }
+}
+
+function writeConsentCookie(value: ConsentState) {
+  const encoded = encodeURIComponent(JSON.stringify(value));
+  // 180 days
+  const maxAge = 60 * 60 * 24 * 180;
+  document.cookie = `${COOKIE_NAME}=${encoded}; path=/; max-age=${maxAge}; samesite=lax`;
+}
+
+const ConsentContext = createContext<{
+  consent: ConsentState | null;
+  setConsent: (next: ConsentState) => void;
+}>({
+  consent: null,
+  setConsent: () => {},
+});
+
+export function ConsentProvider({ children }: { children: React.ReactNode }) {
+  const [consent, setConsentState] = useState<ConsentState | null>(null);
+
+  useEffect(() => {
+    setConsentState(readConsentFromCookie());
+  }, []);
+
+  const setConsent = useCallback((next: ConsentState) => {
+    setConsentState(next);
+    writeConsentCookie(next);
+  }, []);
+
+  const value = useMemo(() => ({ consent, setConsent }), [consent, setConsent]);
+
+  return <ConsentContext.Provider value={value}>{children}</ConsentContext.Provider>;
+}
+
+export function useConsent() {
+  return useContext(ConsentContext);
+}
+
+export const consentCookieName = COOKIE_NAME;
+