// Shared database connection for the music scripts: MUSIC_DB_URL (e.g. the optional
// music_collector role) or DB_URL (the app role, as in the image's prod.env).
import postgres from 'postgres';

export function musicDb() {
	const url = process.env.MUSIC_DB_URL || process.env.DB_URL;
	if (!url) throw new Error('Set MUSIC_DB_URL or DB_URL');
	return postgres(url, { max: 1, prepare: false, connect_timeout: 10, onnotice: () => {} });
}

export const sleep = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms));

export function arg(name: string): string | undefined {
	const i = process.argv.indexOf(`--${name}`);
	return i >= 0 ? process.argv[i + 1] : undefined;
}