import { ASSISTANT_CONTEXTS } from './contexts';

/**
 * Where the Owliver dashboard panel appears.
 *
 * The assistant occupies a permanent column in the page layout, so enabling it
 * on a page is a layout decision, not a feature flag — which is exactly why the
 * decision lives in one table rather than being scattered across pages.
 *
 * Matching is exact, not prefix-based: `/candidates` must not leak an assistant
 * onto a future `/candidates/:id`, and `/positions/:id` must not inherit one
 * from `/positions`.
 */
const PLACEMENT = {
  admin: {
    '/admin': 'admin.controlCenter',
    '/admin/candidates-analysis': 'admin.candidates',
    '/admin/activity': 'admin.activity',
  },
};

/**
 * Pages that must never carry the assistant, listed explicitly so the intent is
 * documented rather than implied by omission.
 *
 * Admin:    every page except Control Center, Candidates Analysis and Activity.
 * Employer: every page. The contextual panel is an Admin capability.
 * Talent:   every page. The talent portal has the standalone Owliver product,
 *           with its own voice experience, branding and workflow.
 */
export const EXCLUDED_ROUTES = [
  // Every Employer and Talent route: the contextual panel is Admin-only.
  '/', '/positions', '/positions/new', '/positions/:id', '/candidates',
  '/hired', '/talent-pool', '/analytics', '/profile', '/apply',
  '/university', '/university/:id', '/me', '/identity', '/employee',
  '/owliver', '/design-system',
  // Admin management surfaces stay focused on their own workflow.
  '/admin/positions', '/admin/candidates', '/admin/hired',
  '/admin/talent-pool', '/admin/analytics', '/admin/profile', '/admin/login',
];

/** Returns the context for a role and path, or `null` to render no assistant. */
export function resolveAssistantContext(role, pathname) {
  const id = PLACEMENT[role]?.[pathname];
  return id ? ASSISTANT_CONTEXTS[id] : null;
}

/** Every enabled role/route pair — used by the placement verification. */
export function enabledRoutes() {
  return Object.entries(PLACEMENT).flatMap(([role, routes]) =>
    Object.entries(routes).map(([path, contextId]) => ({ role, path, contextId }))
  );
}