feat: v0.7.0 — server-authoritative sim engine: tick-on-read clock (time-scale + pause via POST /api/sim), contract expiry + market spawn, analytic plane movement/finalization

lib/db/client.test.ts

@@ -1,10 +1,47 @@
 import fs from 'node:fs/promises';
 import os from 'node:os';
 import path from 'node:path';
+import initSqlJs from 'sql.js';
 import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import { openGameDb, persist } from './client';
 import * as schema from './schema';
 
+// The v0.6.0 DDL — used to build a "legacy" DB file for the migration test.
+const LEGACY_DDL = `
+CREATE TABLE planes (
+  id TEXT PRIMARY KEY NOT NULL,
+  model TEXT NOT NULL,
+  status TEXT NOT NULL,
+  fuel REAL NOT NULL,
+  max_fuel REAL NOT NULL,
+  location_icao TEXT NOT NULL,
+  contract_id TEXT,
+  lat REAL NOT NULL,
+  lon REAL NOT NULL
+);
+CREATE TABLE contracts (
+  id TEXT PRIMARY KEY NOT NULL,
+  origin_icao TEXT NOT NULL,
+  dest_icao TEXT NOT NULL,
+  reward REAL NOT NULL,
+  cargo_type TEXT NOT NULL,
+  cargo_count INTEGER NOT NULL,
+  deadline_sim_time INTEGER NOT NULL,
+  status TEXT NOT NULL,
+  plane_id TEXT,
+  created_sim_time INTEGER NOT NULL
+);
+CREATE TABLE account (
+  cash REAL NOT NULL,
+  reputation REAL NOT NULL
+);
+CREATE TABLE sim_state (
+  clock_ms INTEGER NOT NULL,
+  time_scale REAL NOT NULL,
+  paused INTEGER NOT NULL
+);
+`;
+
 let dir: string;
 
 beforeAll(async () => {
@@ -66,4 +103,29 @@ describe('openGameDb', () => {
     const reloaded = await openGameDb(file);
     expect((await reloaded.db.select().from(schema.account))[0]?.cash).toBe(12345);
   });
+
+  it('migrates a pre-v0.7.0 database: adds new columns and fixes last_real_tick_ms', async () => {
+    // Build a legacy file with the v0.6.0 schema (no departure_sim_time / last_real_tick_ms).
+    const SQL = await initSqlJs();
+    const raw = new SQL.Database();
+    raw.exec(LEGACY_DDL);
+    raw.exec(`INSERT INTO planes VALUES ('plane-starter', 'atr72', 'available', 6300, 6300, 'EDDF', NULL, 50.03, 8.57)`);
+    raw.exec(`INSERT INTO account VALUES (20000, 10)`);
+    raw.exec('INSERT INTO sim_state VALUES (1750000000000, 1, 0)');
+    const file = path.join(dir, 'legacy.db');
+    await fs.writeFile(file, Buffer.from(raw.export()));
+
+    const inst = await openGameDb(file);
+
+    // Not re-seeded (account row exists)…
+    expect((await inst.db.select().from(schema.account))[0]?.cash).toBe(20000);
+    // …but the new columns exist and are usable…
+    const plane = (await inst.db.select().from(schema.planes))[0];
+    expect(plane?.departureSimTime ?? null).toBeNull();
+    const sim = (await inst.db.select().from(schema.simState))[0];
+    expect(sim?.clockMs).toBe(1_750_000_000_000);
+    // …and the ALTER-default 0 was fixed up to a real timestamp so the first
+    // tick-on-read resumes cleanly instead of taking one clamped catch-up jump.
+    expect(sim?.lastRealTickMs).toBeGreaterThan(0);
+  });
 });