/**
 * Showpad Browser Scraper
 * Uses Playwright to access and extract content from Showpad shared spaces
 * Since Showpad's API requires OAuth credentials, we use browser automation
 * to access publicly shared content.
 */

import { chromium, Browser, Page } from 'playwright';

interface ShowpadAsset {
  name: string;
  type: string;
  url?: string;
  thumbnail?: string;
}

interface ShowpadContent {
  title?: string;
  assets: ShowpadAsset[];
  sections: string[];
}

async function extractShowpadContent(page: Page): Promise<ShowpadContent> {
  const content: ShowpadContent = {
    assets: [],
    sections: []
  };

  // Wait for the app to load
  await page.waitForLoadState('networkidle');

  // Try to get the title
  try {
    content.title = await page.title();
  } catch (e) {
    // Ignore
  }

  // Extract any visible text sections
  const textElements = await page.$$('h1, h2, h3, p, .title, .description');
  for (const el of textElements) {
    const text = await el.textContent();
    if (text && text.trim().length > 0) {
      content.sections.push(text.trim());
    }
  }

  // Look for image assets
  const images = await page.$$('img');
  for (const img of images) {
    const src = await img.getAttribute('src');
    const alt = await img.getAttribute('alt');
    if (src) {
      content.assets.push({
        name: alt || 'Unknown',
        type: 'image',
        url: src
      });
    }
  }

  // Look for video elements
  const videos = await page.$$('video');
  for (const video of videos) {
    const src = await video.getAttribute('src');
    const poster = await video.getAttribute('poster');
    content.assets.push({
      name: 'Video',
      type: 'video',
      url: src || undefined,
      thumbnail: poster || undefined
    });
  }

  // Look for download links
  const links = await page.$$('a[href*="download"], a[href*="asset"]');
  for (const link of links) {
    const href = await link.getAttribute('href');
    const text = await link.textContent();
    if (href) {
      content.assets.push({
        name: text?.trim() || 'Download',
        type: 'link',
        url: href
      });
    }
  }

  return content;
}

async function main() {
  const SHARED_SPACE_URL = 'https://tdcerhverv.showpad.biz/s/01kcmt54k3mczgv67x53hcchpw/auth/register';

  console.log('Starting Showpad Browser Scraper...\n');
  console.log('Target URL:', SHARED_SPACE_URL);

  let browser: Browser | null = null;

  try {
    // Launch browser in headed mode for first run to see what's happening
    console.log('\nLaunching browser...');
    browser = await chromium.launch({
      headless: false, // Set to true for production
      slowMo: 500 // Slow down for visibility
    });

    const context = await browser.newContext({
      viewport: { width: 1920, height: 1080 }
    });

    const page = await context.newPage();

    console.log('Navigating to shared space...');
    await page.goto(SHARED_SPACE_URL, { waitUntil: 'networkidle' });

    // Take a screenshot to see what we're dealing with
    const screenshotPath = './showpad-screenshot.png';
    await page.screenshot({ path: screenshotPath, fullPage: true });
    console.log(`Screenshot saved to: ${screenshotPath}`);

    // Get the page content
    console.log('\nPage title:', await page.title());
    console.log('Current URL:', page.url());

    // Wait for any Angular app to load
    await page.waitForTimeout(3000);

    // Extract visible content
    console.log('\nExtracting content...');
    const content = await extractShowpadContent(page);

    console.log('\n=== Extracted Content ===');
    console.log('Title:', content.title);
    console.log('\nSections found:', content.sections.length);
    for (const section of content.sections.slice(0, 10)) {
      console.log('  -', section.substring(0, 100));
    }

    console.log('\nAssets found:', content.assets.length);
    for (const asset of content.assets.slice(0, 10)) {
      console.log(`  - [${asset.type}] ${asset.name}`);
      if (asset.url) console.log(`    URL: ${asset.url.substring(0, 80)}...`);
    }

    // Check if there's a registration form
    const registrationForm = await page.$('form, [class*="register"], [class*="signup"]');
    if (registrationForm) {
      console.log('\nRegistration form detected! The shared space requires registration.');
      console.log('To access content, you would need to:');
      console.log('1. Fill out the registration form');
      console.log('2. Verify your email');
      console.log('3. Log in to access the content');
    }

    // Check current page state
    const pageContent = await page.content();
    if (pageContent.includes('register') || pageContent.includes('sign up')) {
      console.log('\nNote: Page appears to be showing registration prompt');
    }

    // Keep browser open for inspection
    console.log('\nBrowser will stay open for 30 seconds for inspection...');
    await page.waitForTimeout(30000);

  } catch (error: any) {
    console.error('Error:', error.message);
  } finally {
    if (browser) {
      await browser.close();
      console.log('\nBrowser closed.');
    }
  }
}

main().catch(console.error);