Fix permissions handling with react context

Signed-off-by: Émile Ré <nemile.re@gmail.com>

packages/helpers/src/index.ts

@@ -65,3 +65,4 @@ export { fileType, fileSize } from "./file";
 export { formatDatetime, formatDate } from "./date";
 export { getLogoUrl, getTrustCenterUrl } from "./trustCenter";
 export { formatError, type GraphQLError } from "./error";
+export { Role, getAssignableRoles } from "./roles";

packages/helpers/src/roles.ts

@@ -0,0 +1,19 @@
+export enum Role {
+  OWNER = "OWNER",
+  ADMIN = "ADMIN",
+  VIEWER = "VIEWER",
+}
+
+export function getAssignableRoles(currentRole: Role): string[] {
+  if (!currentRole) return [];
+
+  if (currentRole === "OWNER") {
+    return ["OWNER", "ADMIN", "VIEWER"];
+  }
+
+  if (currentRole === "ADMIN") {
+    return ["ADMIN", "VIEWER"];
+  }
+
+  return [];
+}