import { describe, expect, it } from 'vitest';
import { cancellationOutcome } from '../src/cancellation';

const NOW = new Date('2026-06-01T12:00:00Z');
const inHours = (h: number) => new Date(NOW.getTime() + h * 3_600_000);

describe('cancellationOutcome', () => {
  it('refunds in full when the client cancels well ahead', () => {
    const out = cancellationOutcome({
      amountCents: 20_000,
      scheduledStart: inHours(48),
      cancelledBy: 'client',
      now: NOW,
    });
    expect(out.refundCents).toBe(20_000);
    expect(out.feeCents).toBe(0);
  });

  it('charges a fee when the client cancels inside the window', () => {
    const out = cancellationOutcome({
      amountCents: 20_000,
      scheduledStart: inHours(3),
      cancelledBy: 'client',
      now: NOW,
    });
    expect(out.feeCents).toBe(5_000); // 25%
    expect(out.refundCents).toBe(15_000);
  });

  it('treats exactly 24h out as still free', () => {
    const out = cancellationOutcome({
      amountCents: 20_000,
      scheduledStart: inHours(24),
      cancelledBy: 'client',
      now: NOW,
    });
    expect(out.feeCents).toBe(0);
  });

  it('never charges the client when the pro drops the job', () => {
    const out = cancellationOutcome({
      amountCents: 20_000,
      scheduledStart: inHours(1),
      cancelledBy: 'pro',
      now: NOW,
    });
    expect(out.refundCents).toBe(20_000);
    expect(out.feeCents).toBe(0);
  });

  it('refunds in full on an admin cancellation', () => {
    const out = cancellationOutcome({
      amountCents: 20_000,
      scheduledStart: inHours(1),
      cancelledBy: 'admin',
      now: NOW,
    });
    expect(out.refundCents).toBe(20_000);
  });

  it('always splits the full amount, whatever the branch', () => {
    for (const hours of [-5, 0, 1, 23.9, 24, 100]) {
      const out = cancellationOutcome({
        amountCents: 12_345,
        scheduledStart: inHours(hours),
        cancelledBy: 'client',
        now: NOW,
      });
      expect(out.refundCents + out.feeCents).toBe(12_345);
    }
  });
});