Sven (AAMOS AI)
58 lines
1.7 KiB
TypeScript
58 lines
1.7 KiB
TypeScript
import pg from "pg";
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import { drizzle } from "drizzle-orm/node-postgres";
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import * as schema from "./schema/index.js";
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export type Database = ReturnType<typeof createDatabase>["db"];
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let sharedPool: pg.Pool | undefined;
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/**
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* Skapar en databasklient. API och worker delar mönster men äger varsin pool.
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* DATABASE_URL pekar på appens separata databas med egen minimalprivilegie-användare
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* (minsta möjliga privilegier, spec §52).
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*/
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export function createDatabase(connectionString?: string) {
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const isTest = process.env.NODE_ENV === "test" || process.env.VITEST !== undefined;
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const url = connectionString ?? (isTest ? process.env.TEST_DATABASE_URL : process.env.DATABASE_URL);
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if (!url) {
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if (isTest) {
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throw new Error(
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"Sätt TEST_DATABASE_URL till en dedikerad testdatabas. Tester får aldrig använda DATABASE_URL.",
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);
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}
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throw new Error("Missing DATABASE_URL. Set it in your .env or environment before starting the app.");
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}
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const pool = new pg.Pool({
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connectionString: url,
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max: Number(process.env.DATABASE_POOL_MAX ?? 10),
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idleTimeoutMillis: 30_000,
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connectionTimeoutMillis: 10_000,
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});
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const db = drizzle(pool, { schema, casing: "snake_case" });
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return { db, pool };
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}
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/** Singleton för processer som bara behöver en anslutning. */
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export function getDatabase() {
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if (!sharedPool) {
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const { db, pool } = createDatabase();
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sharedPool = pool;
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sharedDb = db;
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}
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return sharedDb!;
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}
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let sharedDb: Database | undefined;
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export async function closeDatabase(): Promise<void> {
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if (sharedPool) {
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await sharedPool.end();
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sharedPool = undefined;
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sharedDb = undefined;
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}
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}
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export { schema };
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