cleaning up npm packages

src/lib/server/db/index.ts

@@ -7,14 +7,37 @@ let pool: pg.Pool | null = null;
 
 function getPool(): pg.Pool {
 	if (pool) return pool;
-	const connectionString = env.DATABASE_URL;
-	if (!connectionString) {
+
+	// Advanced override: a full connection string still wins if someone sets it.
+	if (env.DATABASE_URL) {
+		pool = new pg.Pool({ connectionString: env.DATABASE_URL });
+		return pool;
+	}
+
+	// Normal path: build the connection from individually-named settings so the
+	// username, password, host, etc. are each easy to find and change in .env.
+	const host = env.DB_HOST || 'localhost';
+	const port = Number(env.DB_PORT || '5432');
+	const user = env.DB_USER;
+	const password = env.DB_PASSWORD;
+	const database = env.DB_NAME;
+
+	const missing = [
+		['DB_USER', user],
+		['DB_PASSWORD', password],
+		['DB_NAME', database]
+	]
+		.filter(([, v]) => !v)
+		.map(([k]) => k);
+	if (missing.length) {
 		// Fail loudly on first query rather than mysteriously later.
 		throw new Error(
-			'DATABASE_URL is not set. Copy .env.example to .env (or set it in docker-compose) and try again.'
+			`Database is not configured. Missing: ${missing.join(', ')}. ` +
+				'Copy .env.example to .env and fill in the DB_* values (or set them in docker-compose).'
 		);
 	}
-	pool = new pg.Pool({ connectionString });
+
+	pool = new pg.Pool({ host, port, user, password, database });
 	return pool;
 }