OODA Computer Control

// Browser Manager // Singleton managing the active provider and fallback logic import { BrowserProvider } from './interfaces.js'; import { PuppeteerProvider } from './providers/puppeteerProvider.js'; import { PlaywrightProvider } from './providers/playwrightProvider.js'; import { logAudit } from '../../audit.js'; export class BrowserManager { private static instance: BrowserManager; private provider: BrowserProvider | null = null; private activeEngine: 'puppeteer' | 'playwright' | null = null; private constructor() {} static getInstance(): BrowserManager { if (!BrowserManager.instance) { BrowserManager.instance = new BrowserManager(); } return BrowserManager.instance; } async launch(engine: 'auto' | 'puppeteer' | 'playwright' = 'auto', headless: boolean = true) { if (this.provider) { await this.close(); } if (engine === 'puppeteer') { await this.tryLaunchPuppeteer(headless); } else if (engine === 'playwright') { await this.tryLaunchPlaywright(headless); } else { // Auto mode: Try Puppeteer first, then Playwright try { await this.tryLaunchPuppeteer(headless); } catch (error: any) { console.warn(`Puppeteer launch failed: ${error.message}. Falling back to Playwright.`); await logAudit('launch_browser_fallback', { error: error.message }, 'falling back to playwright'); await this.tryLaunchPlaywright(headless); } } } private async tryLaunchPuppeteer(headless: boolean) { const provider = new PuppeteerProvider(); await provider.launch(headless); this.provider = provider; this.activeEngine = 'puppeteer'; } private async tryLaunchPlaywright(headless: boolean) { const provider = new PlaywrightProvider(); await provider.launch(headless); this.provider = provider; this.activeEngine = 'playwright'; } async close() { if (this.provider) { await this.provider.close(); this.provider = null; this.activeEngine = null; } } getProvider(): BrowserProvider { if (!this.provider) { throw new Error('Browser not started. Call launch_browser first.'); } return this.provider; } getActiveEngine(): string | null { return this.activeEngine; } }