import { Page, Browser, BrowserContext } from 'playwright';
import { logger } from '../services/logger';

/**
 * Detects if a Playwright page has an age verification gate
 */
export async function hasAgeGatePlaywright(page: Page): Promise<boolean> {
  try {
    const url = page.url();
    const bodyText = await page.textContent('body') || '';

    const hasAgeVerification =
      url.includes('/age-gate') ||
      bodyText.includes('age verification') ||
      bodyText.includes('Please select your state') ||
      bodyText.includes('are you 21') ||
      bodyText.includes('are you 18') ||
      bodyText.includes('Enter your date of birth') ||
      bodyText.toLowerCase().includes('verify your age');

    return hasAgeVerification;
  } catch (err) {
    logger.warn('age-gate', `Error detecting age gate: ${err}`);
    return false;
  }
}

/**
 * Attempts to bypass an age gate using Playwright
 * Handles multiple age gate patterns including Curaleaf's complex React-based gate
 *
 * @param page - Playwright page object
 * @param state - State to select (e.g., 'Arizona', 'California')
 * @returns Promise<boolean> - true if bypass succeeded, false otherwise
 */
export async function bypassAgeGatePlaywright(
  page: Page,
  state: string = 'Arizona'
): Promise<boolean> {
  try {
    const hasGate = await hasAgeGatePlaywright(page);

    if (!hasGate) {
      logger.info('age-gate', 'No age gate detected');
      return true;
    }

    logger.info('age-gate', `Age gate detected - attempting to bypass with state: ${state}...`);

    // Wait for age gate to fully render
    await page.waitForTimeout(2000);

    // Method 1: Curaleaf-style (state dropdown + "I'm over 21" button)
    try {
      const stateButton = page.locator('button#state, button[id="state"]').first();
      const stateButtonExists = await stateButton.count() > 0;

      if (stateButtonExists) {
        logger.info('age-gate', 'Found Curaleaf-style state dropdown...');
        await stateButton.click();
        await page.waitForTimeout(1000);

        // Select state
        const stateOption = page.locator('[role="option"]').filter({ hasText: new RegExp(`^${state}$`, 'i') });
        const stateExists = await stateOption.count() > 0;

        if (stateExists) {
          logger.info('age-gate', `Clicking ${state} option...`);
          await stateOption.first().click();
          await page.waitForTimeout(2000);

          // Look for "I'm over 21" button
          const ageButton = page.locator('button').filter({ hasText: /I'm over 21|I am 21|I'm 21|over 21/i });
          const ageButtonExists = await ageButton.count() > 0;

          if (ageButtonExists) {
            logger.info('age-gate', 'Clicking age verification button...');
            await ageButton.first().click();
            await page.waitForLoadState('domcontentloaded', { timeout: 15000 });
            await page.waitForTimeout(3000);

            // Check if we successfully bypassed
            const finalUrl = page.url();
            if (!finalUrl.includes('/age-gate')) {
              logger.info('age-gate', `✅ Age gate bypass successful`);
              return true;
            }
          }
        }
      }
    } catch (e) {
      logger.warn('age-gate', `Curaleaf method failed: ${e}`);
    }

    // Method 2: Simple "Yes" or "I'm 21" button (for simpler age gates)
    try {
      const simpleButton = page.locator('button, a, [role="button"]').filter({
        hasText: /yes|i am 21|i'm 21|enter the site|continue|confirm/i
      });
      const simpleExists = await simpleButton.count() > 0;

      if (simpleExists) {
        logger.info('age-gate', 'Found simple age gate button...');
        await simpleButton.first().click();
        await page.waitForLoadState('domcontentloaded', { timeout: 10000 });
        await page.waitForTimeout(2000);

        const finalUrl = page.url();
        if (!finalUrl.includes('/age-gate')) {
          logger.info('age-gate', `✅ Age gate bypass successful`);
          return true;
        }
      }
    } catch (e) {
      logger.warn('age-gate', `Simple button method failed: ${e}`);
    }

    // Method 3: Standard select dropdown
    try {
      const selectExists = await page.locator('select').count() > 0;
      if (selectExists) {
        logger.info('age-gate', 'Found select dropdown...');
        const select = page.locator('select').first();
        await select.selectOption({ label: state });
        await page.waitForTimeout(1000);

        // Look for submit button
        const submitButton = page.locator('button[type="submit"], input[type="submit"]');
        const submitExists = await submitButton.count() > 0;

        if (submitExists) {
          await submitButton.first().click();
          await page.waitForLoadState('domcontentloaded', { timeout: 10000 });
          await page.waitForTimeout(2000);

          const finalUrl = page.url();
          if (!finalUrl.includes('/age-gate')) {
            logger.info('age-gate', `✅ Age gate bypass successful`);
            return true;
          }
        }
      }
    } catch (e) {
      logger.warn('age-gate', `Select dropdown method failed: ${e}`);
    }

    // Verify final state
    const finalUrl = page.url();
    if (finalUrl.includes('/age-gate')) {
      logger.error('age-gate', `❌ Age gate bypass failed - still at: ${finalUrl}`);
      return false;
    }

    logger.info('age-gate', `✅ Age gate bypass successful`);
    return true;

  } catch (err) {
    logger.error('age-gate', `Error bypassing age gate: ${err}`);
    return false;
  }
}

/**
 * Helper to detect the state from a store URL
 */
export function detectStateFromUrlPlaywright(url: string): string {
  const stateMap: { [key: string]: string } = {
    '-az-': 'Arizona',
    'arizona': 'Arizona',
    '-ca-': 'California',
    'california': 'California',
    '-co-': 'Colorado',
    'colorado': 'Colorado',
    '-fl-': 'Florida',
    'florida': 'Florida',
    '-il-': 'Illinois',
    'illinois': 'Illinois',
    '-ma-': 'Massachusetts',
    '-mi-': 'Michigan',
    '-nv-': 'Nevada',
    '-nj-': 'New Jersey',
    '-ny-': 'New York',
    '-or-': 'Oregon',
    '-pa-': 'Pennsylvania',
    '-wa-': 'Washington',
  };

  const lowerUrl = url.toLowerCase();
  for (const [pattern, stateName] of Object.entries(stateMap)) {
    if (lowerUrl.includes(pattern)) {
      return stateName;
    }
  }

  // Default to Arizona
  return 'Arizona';
}