Slow sim to 1× on landing and resume last selected speed (ISS-057, v0.30.0)

e2e/slow-on-landing.spec.ts

@@ -0,0 +1,139 @@
+import type { Page } from '@playwright/test';
+import { expect, test } from '@playwright/test';
+
+// v0.30.0 — ISS-057: when a landing leaves any plane on the ground the sim slows to 1× server-side
+// WITHOUT pausing (pause is manual-only now), and starting a flight (POST /api/planes/{id}/fly)
+// restores the last MANUALLY selected speed once no plane remains grounded. The cycle: dispatch at
+// 1000× → landing slows to 1× → next dispatch (last grounded plane airborne) resumes 1000×.
+
+const SCALE = 1000; // fastest sim speed — top of the v0.14.0 ladder (same convention as e2e/sim.spec.ts)
+const HUB = 'EDDF'; // Frankfurt Main — the seeded starter plane's home base (lib/game/seed.ts)
+
+interface SimState {
+  clockMs: number;
+  timeScale: number;
+  paused: boolean;
+}
+
+interface StateBody {
+  simState: SimState;
+  planes: Array<{ id: string; status: string; locationIcao: string; destIcao: string | null }>;
+}
+
+async function getState(page: Page): Promise<StateBody> {
+  const res = await page.request.get('/api/state');
+  expect(res.ok()).toBeTruthy();
+  return (await res.json()) as StateBody;
+}
+
+async function postSim(page: Page, body: Record<string, unknown>): Promise<void> {
+  const res = await page.request.post('/api/sim', { data: body });
+  expect(res.status()).toBe(200);
+}
+
+// Set the time scale and VERIFY from the response that it stuck — if something external ever
+// resets the live instance's controls mid-test, fail loudly here instead of timing out later.
+// ISS-057 also records this as lastSelectedTimeScale (the resume target) and clears pause, so any
+// fast-forward after a manual pause or a slowed-to-1× landing proceeds at full speed.
+async function setScale(page: Page, scale: number): Promise<void> {
+  const res = await page.request.post('/api/sim', { data: { timeScale: scale, paused: false } });
+  expect(res.status()).toBe(200);
+  const body = (await res.json()) as SimState;
+  expect(body.timeScale, `timeScale should be ${scale} after POST /api/sim`).toBe(scale);
+}
+
+// Closest airport to the hub from /api/airports → shortest possible leg (fastest e2e flight).
+async function nearestToHub(page: Page): Promise<{ icao: string }> {
+  const res = await page.request.get('/api/airports');
+  expect(res.ok()).toBeTruthy();
+  const fc = (await res.json()) as { features: Array<{ properties: { icao: string; lat: number; lon: number } }> };
+  const hub = fc.features.find((f) => f.properties.icao === HUB)!.properties;
+  let nearest = fc.features.filter((f) => f.properties.icao !== HUB)[0].properties;
+  for (const f of fc.features) {
+    if (f.properties.icao === HUB) continue;
+    const d = Math.hypot(f.properties.lat - hub.lat, f.properties.lon - hub.lon);
+    const dn = Math.hypot(nearest.lat - hub.lat, nearest.lon - hub.lon);
+    if (d < dn) nearest = f.properties;
+  }
+  return { icao: nearest.icao };
+}
+
+// Self-heal helper (same pattern as e2e/relocation.spec.ts): let any in-flight leg finish and
+// reposition plane-starter home via the API so every test starts from the canonical state even
+// after an interrupted previous run.
+async function flyHomeViaApi(page: Page): Promise<void> {
+  let s = await getState(page);
+  let plane = s.planes.find((p) => p.id === 'plane-starter')!;
+  if (plane.status === 'flying' || plane.locationIcao !== HUB) {
+    // Fast-forward any leftover leg / repositioning flight (~20 s real time worst case at 1000×).
+    await setScale(page, SCALE);
+  }
+  if (plane.status === 'flying') {
+    // Let the in-flight leg finish before repositioning. While flying, locationIcao stays at the
+    // DEPARTURE airport — re-read state after landing before deciding whether a repositioning
+    // flight is needed.
+    await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.status), { timeout: 240_000 }).toBe('available');
+    s = await getState(page);
+    plane = s.planes.find((p) => p.id === 'plane-starter')!;
+  }
+  if (plane.locationIcao !== HUB) {
+    // ISS-057: the landing above slowed the sim to 1× — setScale restores 1000× (and records it as
+    // lastSelectedTimeScale) so the return leg fast-forwards instead of taking real-time hours.
+    await setScale(page, SCALE);
+    const res = await page.request.post(`/api/planes/${plane.id}/fly`, { data: { destIcao: HUB } });
+    expect(res.ok()).toBeTruthy(); // repositioning needs no package (v0.12.0 manual flight)
+    await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.locationIcao), { timeout: 240_000 }).toBe(HUB);
+  }
+}
+
+// Self-heal in CLEANUP (afterEach): the test deliberately leaves plane-starter at the far end, so
+// fast-forward + reposition home here; then restore scale=1 / unpaused for later specs.
+test.afterEach(async ({ page }) => {
+  await flyHomeViaApi(page);
+  await postSim(page, { timeScale: 1, paused: false });
+});
+
+test.describe.configure({ mode: 'serial' }); // shared live DB — order matters within this file
+
+test('landing slows the sim to 1× without pausing; dispatch restores the last selected speed (ISS-057)', async ({ page }) => {
+  test.setTimeout(300_000); // self-heal (worst case ~20 s at 1000×) + two short legs
+  await flyHomeViaApi(page); // deterministic: the starter sits grounded at EDDF
+
+  const nearest = await nearestToHub(page);
+
+  // Set 1000× via the API and verify it stuck (also records lastSelectedTimeScale=1000).
+  await setScale(page, SCALE);
+
+  // Dispatch plane-starter on the shortest leg from its hub (repositioning — no package needed).
+  const flyRes = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: nearest.icao } });
+  expect(flyRes.status()).toBe(200);
+
+  // Wait for the landing…
+  let landedBody: StateBody | undefined;
+  await expect
+    .poll(async () => {
+      const b = await getState(page);
+      const p = b.planes.find((x) => x.id === 'plane-starter')!;
+      if (p.status === 'available' && p.locationIcao === nearest.icao) landedBody = b;
+      return !!landedBody;
+    }, { timeout: 120_000, message: `waiting for plane-starter to land at ${nearest.icao}` })
+    .toBe(true);
+
+  // …and the server slowed the sim to 1× WITHOUT pausing — persisted on sim_state, so this very
+  // snapshot shows it (the just-landed plane is on ground → slow; ISS-057).
+  expect(landedBody!.simState.paused).toBe(false);
+  expect(landedBody!.simState.timeScale).toBe(1);
+
+  // A subsequent /fly dispatch restores the last selected speed — asserted on the endpoint's OWN
+  // full post-action snapshot, so no poll race with the client's next tick. setScale posted 1000
+  // above, so lastSelectedTimeScale is 1000 and this dispatch (sole grounded plane → airborne)
+  // resumes it.
+  const fly2 = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: HUB } });
+  expect(fly2.status()).toBe(200);
+  const resumedBody = (await fly2.json()) as StateBody;
+  expect(resumedBody.simState.paused).toBe(false); // dispatch still clears a manual pause…
+  expect(resumedBody.simState.timeScale).toBe(SCALE); // …and restores the last selected speed
+
+  // Let the return leg finish so cleanup starts from a grounded plane.
+  await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.status), { timeout: 120_000 }).toBe('available');
+});