const playwright = require('playwright');
const AuthManager = require('./auth-manager');
const NavigationManager = require('./navigation');

class CoreParser {
  constructor(config = {}) {
    this.config = {
      headless: true,
      timeout: 60000,  // Increased default timeout
      ...config
    };
    this.browser = null;
    this.context = null;
    this.pages = {};
    this.authManager = new AuthManager(this);
    this.navigationManager = new NavigationManager(this);
  }

  async init() {
    this.browser = await playwright.chromium.launch({
      headless: this.config.headless
    });
    
    // Create context with user agent to appear more like a real browser
    const contextOptions = {
      userAgent: this.config.userAgent || 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
      viewport: { width: 1920, height: 1080 },
      locale: 'en-US',
      timezoneId: 'America/New_York',
    };
    
    // Add extra HTTP headers to appear more legitimate
    contextOptions.extraHTTPHeaders = {
      'Accept-Language': 'en-US,en;q=0.9',
      'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
      'Accept-Encoding': 'gzip, deflate, br',
      'DNT': '1',
      'Connection': 'keep-alive',
      'Upgrade-Insecure-Requests': '1',
    };
    
    this.context = await this.browser.newContext(contextOptions);
  }

  async createPage(id) {
    if (!this.browser) await this.init();
    const page = await this.context.newPage();
    this.pages[id] = page;
    return page;
  }

  getPage(id) {
    return this.pages[id];
  }

  async authenticate(site, credentials, pageId) {
    return this.authManager.authenticate(site, credentials, pageId);
  }

  async navigateTo(url, options = {}) {
    const {
      pageId = "default",
      waitUntil = "networkidle",  // Changed default to networkidle
      retries = 1,
      retryDelay = 2000,
      timeout = this.config.timeout,
    } = options;

    return this.navigationManager.navigateTo(url, options);
  }

  async cleanup() {
    if (this.browser) {
      await this.browser.close();
      this.browser = null;
      this.context = null;
      this.pages = {};
    }
  }
}

module.exports = CoreParser;