import { describe, expect, it } from 'vitest';
import { SSE_PACKAGE_STATUSES, sseFrame, type PackageState, type StateSnapshot } from './state';

// ISS-133 (v0.59.0) — the SSE projection keeps only the package statuses any component renders.

const pkg = (status: PackageState['status'], id: string): PackageState => ({
  id,
  originIcao: 'LEMD',
  originName: 'Madrid–Barajas',
  destIcao: 'EHAM',
  destName: 'Amsterdam Schiphol',
  reward: 1000,
  cargoType: 'mail',
  cargoCount: 3,
  weightKg: 900,
  special: null,
  expiresRealMs: status === 'open' ? 2_000_000 : null, // v0.65.0 — open jobs carry their wall-clock expiry
  distanceKm: 2000,
  deadlineSimTime: 1_000_000,
  status,
  planeId: null,
  createdSimTime: 0,
});

const snapshot = (packages: PackageState[]): StateSnapshot => ({
  account: { cash: 20_000, reputation: 1 },
  simState: { clockMs: 42 },
  catalog: [],
  fuelPricePerL: 0.8,
  sellFraction: 0.5,
  planes: [],
  packages,
});

describe('sseFrame', () => {
  it('keeps exactly the open/loaded/expired packages and drops terminal history', () => {
    const all = [
      pkg('open', 'p-open'),
      pkg('delivered', 'p-delivered'),
      pkg('loaded', 'p-loaded'),
      pkg('abandoned', 'p-abandoned'),
      pkg('expired', 'p-expired'),
      pkg('ignored', 'p-ignored'),
    ];
    const frame = sseFrame(snapshot(all));
    expect(frame.packages.map((p) => p.id)).toEqual(['p-open', 'p-loaded', 'p-expired']);
  });

  it('passes the rest of the snapshot through untouched and does not mutate its input', () => {
    const all = [pkg('open', 'a'), pkg('delivered', 'b')];
    const snap = snapshot(all);
    const frame = sseFrame(snap);
    expect(frame.account).toEqual({ cash: 20_000, reputation: 1 });
    expect(frame.simState).toEqual({ clockMs: 42 });
    expect(frame.planes).toEqual([]);
    expect(all.map((p) => p.status)).toContain('delivered'); // input intact
  });

  it('SSE_PACKAGE_STATUSES matches what the client renders (open market, on-board cargo)', () => {
    expect([...SSE_PACKAGE_STATUSES].sort()).toEqual(['expired', 'loaded', 'open']);
  });
});