import { randomInt } from 'node:crypto';
import { getOrCreateSetting } from './db';

// Desktop Windows browser profiles. Choose a browser once per instance, not
// once per request, so HTTP calls and socket reconnects keep the same identity.
const USER_AGENTS = [
    'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36',
    'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:147.0) Gecko/20100101 Firefox/147.0',
    'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36 Edg/144.0.0.0',
] as const;

const g = globalThis as typeof globalThis & { __requestUserAgent?: string };

export function getRequestUserAgent(): string {
    return g.__requestUserAgent ??= getOrCreateSetting('user_agent', () => USER_AGENTS[randomInt(USER_AGENTS.length)]);
}