import { expect, test } from 'bun:test';
import { SeededRng } from '../../../../../packages/engine/src/rng';
import { applyAction, setupGame, usersOf } from '../help-kit.test-util';
import { GAMES } from '@bg/games';
import { helpNow } from './help';

const users = usersOf(['A', 'B']);
const view = (s: unknown, who: string | null) => GAMES.chess!.view(s, who) as any;
// Act a second after the previous action so the first-move limit (대국 취소) never fires.
let clock = 1_700_000_000_000;
const act = (s: any, who: string, a: unknown) => applyAction('chess', s, who, a, SeededRng.fromSeed([9, 9, 9, 9]), (clock += 1000));
const move = (s: any, who: string, from: string, to: string) => act(s, who, { type: 'move', from, to });

test('체스: 내 차례(첫 수) / 상대 차례 / 관전', () => {
  const { state } = setupGame('chess', 2, { colorAssignment: 'hostWhite', hints: 'moves' });
  const mine = helpNow(view(state, 'A'), 'A', users);
  expect(mine).toContain('내 차례예요(백)');
  expect(mine).toContain('점이 찍혀요');
  expect(mine).toContain('대국이 취소돼요');
  expect(helpNow(view(state, 'B'), 'B', users)).toContain('상대(호랑이님) 차례예요');
  expect(helpNow(view(state, null), null, users)).toContain('호랑이님(백) 차례예요');
});

test('체스: 체크를 받은 쪽과 건 쪽, 관전자', () => {
  const { state } = setupGame('chess', 2, { colorAssignment: 'hostWhite' });
  let s = move(state, 'A', 'e2', 'e4');
  s = move(s, 'B', 'f7', 'f6');
  s = move(s, 'A', 'd1', 'h5');
  expect(helpNow(view(s, 'B'), 'B', users)).toContain('체크예요!');
  expect(helpNow(view(s, 'A'), 'A', users)).toContain('체크를 걸었어요');
  expect(helpNow(view(s, null), null, users)).toContain('흑 킹이 체크');
});

test('체스: 승진 안내(선택 창 / 자동 퀸)와 기물 점수', () => {
  for (const autoQueen of [false, true]) {
    const { state } = setupGame('chess', 2, { colorAssignment: 'hostWhite', autoQueen });
    const s = structuredClone(state);
    s.fen = '4k3/P7/8/8/8/8/8/4K3 w - - 0 1';
    const t = helpNow(view(s, 'A'), 'A', users);
    expect(t).toContain(autoQueen ? '자동으로 퀸' : '고르는 창');
    expect(t).toContain('백이 1점 앞서요');
  }
});

test('체스: 무승부 제안을 받으면 수락/거절, 끝나면 결과', () => {
  const { state } = setupGame('chess', 2, { colorAssignment: 'hostWhite', drawOffer: true });
  let s = move(state, 'A', 'e2', 'e4');
  s = act(s, 'A', { type: 'offerDraw' });
  expect(helpNow(view(s, 'B'), 'B', users)).toContain('무승부를 제안');
  expect(helpNow(view(s, 'A'), 'A', users)).toContain('[요청 취소]');
  s = act(s, 'B', { type: 'respondDraw', accept: true });
  expect(helpNow(view(s, null), null, users)).toContain('게임이 끝났어요. 무승부');
});