// Remembers the last project the user was looking at so the app can return them
// there on the next visit. Browser-local only (per-device); the server never
// trusts it — landing and the route guard always re-validate the id against the
// org's project list.
const LAST_PROJECT_KEY = "openseo:lastProjectId";

export function getLastProjectId(): string | null {
  if (typeof window === "undefined") return null;
  try {
    return window.localStorage.getItem(LAST_PROJECT_KEY);
  } catch {
    return null;
  }
}

export function setLastProjectId(projectId: string): void {
  if (typeof window === "undefined") return;
  try {
    window.localStorage.setItem(LAST_PROJECT_KEY, projectId);
  } catch {
    // Ignore private-mode / disabled-storage failures.
  }
}

export function clearLastProjectId(): void {
  if (typeof window === "undefined") return;
  try {
    window.localStorage.removeItem(LAST_PROJECT_KEY);
  } catch {
    // Ignore private-mode / disabled-storage failures.
  }
}