import { useTenant } from '../services/TenantService.tsx';

/**
 * Whether collaboration teams can exist where this page is running, from the tenant the API reported.
 *
 * The server grants collaboration only on a production tenant and answers a sandbox read with an empty
 * list, so an empty list alone cannot tell "no teams" from "not available here". This reads the same
 * tenant answer the sandbox banner shows, never the list, a build flag or the stored mode.
 */
export type CollaborationAvailability = 'available' | 'unavailable' | 'checking' | 'unknown';

export const SANDBOX_TEAMS_UNAVAILABLE =
    'Collaboration teams are not available in the sandbox. Teams, their invitations and their messages work only in your live practice.';

export const useCollaborationAvailability = (): CollaborationAvailability => {
    const { kind, settled } = useTenant();
    if (kind === 'sandbox') return 'unavailable';
    if (kind === 'production') return 'available';
    // Only an answer still on its way is "checking"; one that could not be had leaves the page as it was.
    return settled === false ? 'checking' : 'unknown';
};