feat: enhance lesson plan handling with new parser and color-coded room assignments

test/backoff.test.js

@@ -1,6 +1,7 @@
 import { test, before, after } from "node:test";
 import assert from "node:assert/strict";
 import { setTimeout as sleep } from "node:timers/promises";
+import { readFileSync, writeFileSync } from "node:fs";
 import { startApi } from "./support/nextcloud.js";
 
 // The university is asked politely: every request names the service and its owner, and while
@@ -62,3 +63,17 @@ test("Источник: пока университет не отвечает,
   assert.equal(catalog.failingSince, null);
   assert.ok(!(await (await fetch(api.base + "/api/catalog")).json()).stale);
 });
+
+test("Источник: новый парсер перечитывает сохранённый документ, не обращаясь к университету", async () => {
+  const { files } = await (await fetch(api.base + "/api/catalog")).json();
+  const file = files.find((f) => f.name === "23-ЛГ_23-БА.docx");
+  assert.equal((await fetch(api.base + "/api/schedule/" + file.id)).status, 200);
+  // The cache as an older parser left it.
+  const cache = `${process.env.PSU_DATA_DIR}/parsed/${file.id}.json`;
+  writeFileSync(cache, JSON.stringify({ ...JSON.parse(readFileSync(cache, "utf8")), schemaVersion: 1 }));
+  const requests = api.stats.requests;
+  const schedule = await (await fetch(api.base + "/api/schedule/" + file.id)).json();
+  assert.equal(api.stats.requests, requests);
+  assert.notEqual(schedule.schemaVersion, 1);
+  assert.ok(schedule.lessons.length > 0);
+});