'use client';

import type { Action } from '@/game/engine';
import { Button } from './ui/button';

/** The same public opportunity is shown regardless of the Emperor's spice. */
export type EmperorExtortionPriorityView = {
  event: string;
  recipient: string;
  canContinue: boolean;
};

export type EmperorExtortionPriorityProps = {
  game: {
    emperorExtortionPriority: EmperorExtortionPriorityView | null;
    players: readonly { id: string; name: string }[];
  };
  act: (action: Action) => void;
  busy: boolean;
};

/** The payer's normal Extortion choice remains pending until the Emperor
 * completes this optional alliance opportunity. */
export function EmperorExtortionPriority({ game, act, busy }: EmperorExtortionPriorityProps) {
  const priority = game.emperorExtortionPriority;
  if (!priority) return null;
  const event = priority.event;
  const recipient = game.players.find(player => player.id === priority.recipient)?.name ?? 'the ally';
  const canAct = () => !busy && game.emperorExtortionPriority === priority &&
    priority.event === event && typeof event === 'string' && event.length > 0 && priority.canContinue;

  return <section className="notice space-y-3" aria-label="Emperor Extortion opportunity" aria-live="polite">
    <h3>Emperor alliance opportunity</h3>
    <p>Before {recipient} makes the Extortion choice, the Emperor may share spice with their ally. The existing gift control shows any available amount.</p>
    {priority.canContinue ? <Button className="game-action min-h-11 whitespace-normal"
      data-testid="emperor-extortion-continue" disabled={!canAct()}
      onClick={() => { if (canAct()) act({type:'emperorExtortionContinue', event}); }}>
      Continue to Extortion
    </Button> : <p>Waiting for the Emperor to continue.</p>}
  </section>;
}