process.env.NODE_ENV = 'test';

import { GeneralSettingsSchema } from '../../backend/src/modules/admin/dto/general.dto';

const baseValid = {
  pageTitle: 'OpenVelo',
  logo: '',
  welcomeMarkdown: '',
  themeKey: 'classic',
  defaultChallengeIp: '127.0.0.1',
  registrationsEnabled: false,
};

function withEvent(start: string, end: string) {
  return { ...baseValid, eventStartUtc: start, eventEndUtc: end };
}

describe('Admin general settings - event window validation (Job 888)', () => {
  it('accepts a valid event window', () => {
    const r = GeneralSettingsSchema.safeParse(
      withEvent('2026-08-15T10:30:00.000Z', '2026-08-20T18:45:00.000Z'),
    );
    expect(r.success).toBe(true);
  });

  it('rejects an empty eventEndUtc with a per-field message', () => {
    const r = GeneralSettingsSchema.safeParse(withEvent('2026-08-15T10:30:00.000Z', ''));
    expect(r.success).toBe(false);
    if (r.success) return;
    const endIssue = r.error.issues.find((i) => i.path.join('.') === 'eventEndUtc');
    expect(endIssue?.message).toBe('eventEndUtc must be a valid ISO-8601 datetime');
  });

  it('rejects an empty eventStartUtc with a per-field message', () => {
    const r = GeneralSettingsSchema.safeParse(withEvent('', '2026-08-20T18:45:00.000Z'));
    expect(r.success).toBe(false);
    if (r.success) return;
    const startIssue = r.error.issues.find((i) => i.path.join('.') === 'eventStartUtc');
    expect(startIssue?.message).toBe('eventStartUtc must be a valid ISO-8601 datetime');
  });

  it('rejects a non-empty malformed eventEndUtc', () => {
    const r = GeneralSettingsSchema.safeParse(withEvent('2026-08-15T10:30:00.000Z', 'not-a-date'));
    expect(r.success).toBe(false);
    if (r.success) return;
    const endIssue = r.error.issues.find((i) => i.path.join('.') === 'eventEndUtc');
    expect(endIssue?.message).toBe('eventEndUtc must be a valid ISO-8601 datetime');
  });

  it('rejects end equal to start', () => {
    const ts = '2026-08-15T10:30:00.000Z';
    const r = GeneralSettingsSchema.safeParse(withEvent(ts, ts));
    expect(r.success).toBe(false);
    if (r.success) return;
    const endIssue = r.error.issues.find((i) => i.path.join('.') === 'eventEndUtc');
    expect(endIssue?.message).toBe('eventEndUtc must be strictly after eventStartUtc');
  });

  it('rejects end before start', () => {
    const r = GeneralSettingsSchema.safeParse(
      withEvent('2026-08-20T18:45:00.000Z', '2026-08-15T10:30:00.000Z'),
    );
    expect(r.success).toBe(false);
    if (r.success) return;
    const endIssue = r.error.issues.find((i) => i.path.join('.') === 'eventEndUtc');
    expect(endIssue?.message).toBe('eventEndUtc must be strictly after eventStartUtc');
  });
});