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TypeScript client for accessing TLE Community.
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778import fs from 'node:fs';import _ from 'lodash';import Lacuna from '../lacuna';import { int } from '../core/util';import { tmpfile } from './tmpfile';
// Nearly every buildings/*.test.ts file calls findBuilding() in its own// beforeAll, which would otherwise mean 1 empire.getStatus() + up to 4// body.getBuildings() calls *per test file* just to look up a building_id -// on ~40 files that alone eats a big chunk of the server's 200 requests/// minute budget before any actual method under test even runs. The// building layout doesn't change during a read-only test run, so it's// fetched once and cached on disk for the rest of the run.const CACHE_FILE = tmpfile('tle-client-test-building-inventory.json');const INVENTORY_TTL_MS = 4 * 60 * 1000;
type Inventory = Record<number, Record<string, string>>; // body_id -> building_id -> name
interface CachedInventory { expiresAt: number; bodies: Inventory;}
async function loadInventory(lacuna: Lacuna): Promise<Inventory> { try { const cached = JSON.parse(fs.readFileSync(CACHE_FILE, 'utf8')) as CachedInventory; if (cached.expiresAt > Date.now()) return cached.bodies; } catch { // No cache yet, or it's corrupt/unreadable - fetch fresh below. }
const { result: statusResult, error } = await lacuna.empire.getStatus();
if (!statusResult || error) { if (error) throw error; else throw new Error('Could not call get_status on test empire'); }
const empire = statusResult.empire; const bodyIds = [empire.home_planet_id, ...empire.bodies.colonies.map((c) => c.id)];
const bodies: Inventory = {}; for (const bodyId of bodyIds) { const { result } = await lacuna.body.getBuildings({ body_id: bodyId }); bodies[bodyId] = _.mapValues(result!.buildings, (b) => b.name); }
fs.writeFileSync( CACHE_FILE, JSON.stringify({ expiresAt: Date.now() + INVENTORY_TTL_MS, bodies }) ); return bodies;}
/** * Finds the building_id (and body_id it lives on) of the first building * named `buildingName` across every body the test empire owns (home planet + * colonies). Returns `undefined` if none is found - the fixture account * doesn't have that building anywhere yet. Callers should skip (not fail) * their tests in that case; see any buildings/*.test.ts file for the * pattern. */export async function findBuilding(lacuna: Lacuna, buildingName: string) { const bodies = await loadInventory(lacuna);
for (const [bodyIdStr, buildings] of Object.entries(bodies)) { const key = _.chain(buildings) .keys() .filter((k) => buildings[k] === buildingName) .first() .value();
if (key) return { buildingId: int(key), bodyId: int(bodyIdStr) }; }
return undefined;}