import { chromium } from 'playwright';
import path from 'path';
import fs from 'fs';
import readline from 'readline';

const SESSION_DIR = path.resolve(process.cwd(), './data/browser-session');

async function waitForEnter(prompt: string): Promise<void> {
  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
  });

  return new Promise((resolve) => {
    rl.question(prompt, () => {
      rl.close();
      resolve();
    });
  });
}

async function manualLogin(): Promise<void> {
  console.log('='.repeat(60));
  console.log('Reddit Bot - Manual Login');
  console.log('='.repeat(60));
  console.log();

  // Ensure session directory exists
  if (!fs.existsSync(SESSION_DIR)) {
    fs.mkdirSync(SESSION_DIR, { recursive: true });
  }

  console.log(`Session will be saved to: ${SESSION_DIR}`);
  console.log();

  const context = await chromium.launchPersistentContext(SESSION_DIR, {
    headless: false,
    viewport: { width: 1280, height: 720 },
    args: ['--disable-blink-features=AutomationControlled'],
  });

  const page = await context.newPage();

  console.log('Opening Reddit login page...');
  await page.goto('https://www.reddit.com/login/');

  console.log();
  console.log('-'.repeat(60));
  console.log('Please log in to Reddit in the browser window.');
  console.log();
  console.log('After logging in successfully:');
  console.log('1. Make sure you see your username in the top right');
  console.log('2. Come back here and press Enter');
  console.log('-'.repeat(60));
  console.log();

  await waitForEnter('Press Enter when you have logged in... ');

  // Verify login
  console.log();
  console.log('Verifying login status...');

  await page.goto('https://www.reddit.com');
  await page.waitForTimeout(3000);

  // Check for login indicators
  const userButton = await page.$('[data-testid="user-drawer-button"]');
  const avatar = await page.$('[class*="avatar"], [class*="Avatar"]');

  const isLoggedIn = (userButton && (await userButton.isVisible())) || avatar !== null;

  console.log();
  if (isLoggedIn) {
    console.log('SUCCESS! You are logged in.');
    console.log(`Session saved to: ${SESSION_DIR}`);
    console.log();
    console.log('You can now run the bot with: npm start');
  } else {
    console.log('WARNING: Login could not be verified.');
    console.log('The session has been saved, but you may need to try again.');
    console.log();
    console.log('Tips:');
    console.log('- Make sure you completed the login process');
    console.log('- Try clicking on your profile to ensure the page loaded');
    console.log('- Run this script again if needed');
  }

  console.log();
  console.log('Closing browser...');
  await context.close();

  console.log('Done!');
}

manualLogin().catch((error) => {
  console.error('Error during login:', error);
  process.exit(1);
});