add mdm

client/ui/frontend/src/contexts/RestrictionsContext.tsx

@@ -0,0 +1,45 @@
+import { createContext, useContext, useEffect, useState, type ReactNode } from "react";
+import { Events } from "@wailsio/runtime";
+import { Settings as SettingsSvc } from "@bindings/services";
+import { Restrictions } from "@bindings/services/models.js";
+
+const EVENT_SYSTEM = "netbird:event";
+const EMPTY = new Restrictions();
+
+const RestrictionsContext = createContext<Restrictions>(EMPTY);
+
+export const useRestrictions = () => useContext(RestrictionsContext);
+
+export const RestrictionsProvider = ({ children }: { children: ReactNode }) => {
+    const [restrictions, setRestrictions] = useState<Restrictions>(EMPTY);
+
+    useEffect(() => {
+        let cancelled = false;
+
+        const refresh = async () => {
+            try {
+                const r = await SettingsSvc.GetRestrictions();
+                if (!cancelled) setRestrictions(r);
+            } catch (e) {
+                console.error("[RestrictionsContext] refresh failed", e);
+            }
+        };
+
+        refresh();
+
+        const off = Events.On(
+            EVENT_SYSTEM,
+            (e: { data?: { metadata?: { [k: string]: string | undefined } } }) => {
+                if (e.data?.metadata?.type === "config_changed") refresh();
+            },
+        );
+        return () => {
+            cancelled = true;
+            off();
+        };
+    }, []);
+
+    return (
+        <RestrictionsContext.Provider value={restrictions}>{children}</RestrictionsContext.Provider>
+    );
+};