import { describe, it, expect } from 'vitest';
import { acceptMatchRequest, type AcceptMatchRequestInput, type MatchRequestStatus } from '../accept-match-request.js';

function validInput(overrides: Partial<AcceptMatchRequestInput> = {}): AcceptMatchRequestInput {
  return {
    currentStatus: 'OPEN',
    actorUserId: 'operator-1',
    ...overrides,
  };
}

describe('acceptMatchRequest', () => {
  // U013: 매칭 요청 수락
  it('U013-1: OPEN 상태에서 수락 가능', () => {
    const result = acceptMatchRequest(validInput({ currentStatus: 'OPEN' }));

    expect(result.ok).toBe(true);
    if (result.ok) {
      expect(result.value.status).toBe('ACCEPTED');
    }
  });

  it('U013-2: REVIEWING 상태에서 수락 가능', () => {
    const result = acceptMatchRequest(validInput({ currentStatus: 'REVIEWING' }));

    expect(result.ok).toBe(true);
    if (result.ok) {
      expect(result.value.status).toBe('ACCEPTED');
    }
  });

  // U013: 수락 불가능한 상태들
  const nonAcceptableStatuses: MatchRequestStatus[] = [
    'ACCEPTED',
    'REJECTED',
    'CONTRACTING',
    'EXPIRED',
    'CANCELLED',
    'COMPLETED',
  ];

  nonAcceptableStatuses.forEach((status) => {
    it(`U013-3: ${status} 상태에서는 수락 불가`, () => {
      const result = acceptMatchRequest(validInput({ currentStatus: status }));

      expect(result.ok).toBe(false);
      if (!result.ok) {
        expect(result.error.code).toBe('INVALID_STATUS_TRANSITION');
        expect(result.error.details?.currentStatus).toBe(status);
      }
    });
  });
});