import 'package:web/web.dart' as web;

/// Per-tab storage for the PKCE verifier + CSRF state (cleared when the tab
/// closes), and the little bit of `window` access the OIDC redirect needs.

void setSession(String key, String value) =>
    web.window.sessionStorage.setItem(key, value);

String? getSession(String key) => web.window.sessionStorage.getItem(key);

void removeSession(String key) => web.window.sessionStorage.removeItem(key);

void redirect(String url) => web.window.location.assign(url);

Map<String, String> currentQueryParameters() =>
    Uri.parse(web.window.location.href).queryParameters;

/// Drop the OIDC callback path + `?code=…&state=…` from the address bar
/// without reloading (back to the app root).
void clearQuery() {
  web.window.history.replaceState(null, '', '/');
}