Availability based on permissions

frontend/lib/hasPermissions.ts

@@ -0,0 +1,25 @@
+import { Role } from "@/types/types";
+
+export default function hasPermissions(
+	roles: Role[],
+	permissions: { [key: string]: string[] },
+) {
+	const permissionsSet: Map<string, null> = new Map();
+	for (const role of roles) {
+		if (!role.permissions) continue;
+		for (const perm of role?.permissions) {
+			const key = perm.resource + ":" + perm.action;
+			permissionsSet.set(key, null);
+		}
+	}
+
+	for (const [perm, actions] of Object.entries(permissions)) {
+		for (const action of actions) {
+			if (!permissionsSet.has(perm + ":" + action)) {
+				return false;
+			}
+		}
+	}
+
+	return true;
+}