#!/usr/bin/env node
const { chromium } = require('playwright');
const fs = require('fs');
const path = require('path');
const readline = require('readline');

const DOWNLOAD_DIR = path.dirname(__filename);
const SESSION_FILE = path.join(DOWNLOAD_DIR, '.session.json');
const ENV_FILE = path.join(DOWNLOAD_DIR, 'env');

// Read configuration from env file
function loadConfig() {
  const content = fs.readFileSync(ENV_FILE, 'utf8');
  
  const config = {};
  
  // Match $VAR = "value" patterns
  const matches = content.matchAll(/\$(\w+)\s*=\s*"([^"]*)"/g);
  for (const match of matches) {
    config[match[1]] = match[2];
  }
  
  return config;
}

const config = loadConfig();
const PORTAL_URL = config.PORTAL_URL || 'https://portal.lwv.org';
const MEMBERSHIP_URL = config.MEMBERSHIP_URL || 'https://portal.lwv.org/groups/43a93df1-901a-4676-88c3-f4ea430d4884/league_membership_state_view';

function waitForEnter() {
  const rl = readline.createInterface({ input: process.stdin, output: process.stdout });
  return new Promise(resolve => rl.question('', () => {
    rl.close();
    resolve();
  }));
}

async function saveSession() {
  console.log('Starting browser for session save...');
  console.log('');
  console.log('INSTRUCTIONS:');
  console.log('1. A browser window will open');
  console.log('2. Log in using the magic link method (email)');
  console.log('3. After logging in and seeing the home page, come back here');
  console.log('4. Press Enter to save the session');
  console.log('');
  console.log(`Portal URL: ${PORTAL_URL}`);
  console.log(`Membership URL: ${MEMBERSHIP_URL}`);
  console.log('');
  
  const browser = await chromium.launch({
    headless: false,
    devtools: true
  });
  
  const context = await browser.newContext();
  const page = await context.newPage();
  
  try {
    // Go to portal
    await page.goto(PORTAL_URL, { waitUntil: 'networkidle', timeout: 60000 });
    console.log('Browser opened. Please log in using magic link...');
    console.log('Press Enter after you have logged in and can see the home page.');
    
    // Wait for user to press Enter
    await waitForEnter();
    
    // Navigate to membership page to verify access
    console.log('Navigating to membership page...');
    await page.goto(MEMBERSHIP_URL, { waitUntil: 'networkidle', timeout: 60000 });
    await page.waitForTimeout(2000);
    
    console.log('Membership page loaded. Saving session...');
    
    // Get cookies and storage state
    const cookies = await context.cookies();
    const storageState = await context.storageState();
    
    // Save session data - indefinite expiry (set to 10 years)
    const sessionData = {
      cookies: cookies,
      storageState: storageState,
      savedAt: new Date().toISOString(),
      expiresAt: new Date(Date.now() + 3650 * 24 * 60 * 60 * 1000).toISOString() // 10 years
    };
    
    fs.writeFileSync(SESSION_FILE, JSON.stringify(sessionData, null, 2));
    console.log(`Session saved to ${SESSION_FILE}`);
    console.log(`Saved ${cookies.length} cookies`);
    
    // Verify session works by checking membership page
    console.log('Verifying session...');
    const testPage = await context.newPage();
    await testPage.goto(MEMBERSHIP_URL, { waitUntil: 'networkidle', timeout: 30000 });
    const testContent = await testPage.content();
    
    if (testContent.includes('Local League Membership') || testContent.includes('submit-export')) {
      console.log('Session verified successfully!');
    } else {
      console.log('Warning: Session may not have full access');
    }
    await testPage.close();
    
    console.log('\nSession save complete! You can now run download-roster.js');
    
  } catch (error) {
    console.error('Error:', error.message);
    throw error;
  } finally {
    await browser.close();
  }
}

saveSession().catch(err => {
  console.error('Failed:', err);
  process.exit(1);
});