/**
 * QR Code System End-to-End Tests
 * Tests QR validation, manual entry, and scanner integration
 */

import { test, expect } from '@playwright/test';

test.describe('QR Code System', () => {
  test.beforeEach(async ({ page }) => {
    // Navigate to scanner page with event ID
    await page.goto('/scanner?eventId=test-event-123');
    
    // Wait for scanner to initialize
    await page.waitForSelector('[data-testid="scanner-interface"]', { timeout: 10000 });
  });

  test('should display manual entry button in scanner interface', async ({ page }) => {
    // Check for manual entry button (hash icon)
    const manualEntryButton = page.locator('button[title="Manual Entry"]');
    await expect(manualEntryButton).toBeVisible();
    
    // Verify button has hash icon
    await expect(manualEntryButton.locator('svg')).toBeVisible();
  });

  test('should open manual entry modal when hash button clicked', async ({ page }) => {
    // Click manual entry button
    await page.click('button[title="Manual Entry"]');
    
    // Verify modal opens
    await expect(page.locator('h2:text("Manual Entry")')).toBeVisible();
    
    // Verify keypad is present
    await expect(page.locator('button:text("1")')).toBeVisible();
    await expect(page.locator('button:text("2")')).toBeVisible();
    await expect(page.locator('button:text("3")')).toBeVisible();
  });

  test('manual entry modal should have proper keyboard navigation', async ({ page }) => {
    await page.click('button[title="Manual Entry"]');
    
    // Test numeric input
    await page.keyboard.press('1');
    await page.keyboard.press('2');
    await page.keyboard.press('3');
    await page.keyboard.press('4');
    await page.keyboard.press('A');
    await page.keyboard.press('B');
    await page.keyboard.press('C');
    await page.keyboard.press('D');
    
    // Verify code display shows entered characters
    const codeDisplay = page.locator('div').filter({ hasText: /1234-ABCD/ }).first();
    await expect(codeDisplay).toBeVisible();
  });

  test('should validate backup codes properly', async ({ page }) => {
    await page.click('button[title="Manual Entry"]');
    
    // Enter invalid code (too short)
    await page.keyboard.press('1');
    await page.keyboard.press('2');
    await page.keyboard.press('3');
    
    // Submit button should be disabled
    const submitButton = page.locator('button:text("Submit")');
    await expect(submitButton).toBeDisabled();
    
    // Complete valid code
    await page.keyboard.press('4');
    await page.keyboard.press('A');
    await page.keyboard.press('B');
    await page.keyboard.press('C');
    await page.keyboard.press('D');
    
    // Submit button should be enabled
    await expect(submitButton).toBeEnabled();
  });

  test('should handle manual entry submission', async ({ page }) => {
    await page.click('button[title="Manual Entry"]');
    
    // Enter a complete backup code
    await page.keyboard.press('1');
    await page.keyboard.press('2');
    await page.keyboard.press('3');
    await page.keyboard.press('4');
    await page.keyboard.press('A');
    await page.keyboard.press('B');
    await page.keyboard.press('C');
    await page.keyboard.press('D');
    
    // Submit the code
    await page.click('button:text("Submit")');
    
    // Modal should close and scan result should appear
    await expect(page.locator('h2:text("Manual Entry")')).toBeHidden();
    
    // Should show scan result (either success or error)
    await expect(page.locator('[class*="ring-2"]')).toBeVisible({ timeout: 5000 });
  });

  test('should close modal on escape key', async ({ page }) => {
    await page.click('button[title="Manual Entry"]');
    
    // Verify modal is open
    await expect(page.locator('h2:text("Manual Entry")')).toBeVisible();
    
    // Press escape
    await page.keyboard.press('Escape');
    
    // Modal should close
    await expect(page.locator('h2:text("Manual Entry")')).toBeHidden();
  });

  test('should show letter keys when toggle is clicked', async ({ page }) => {
    await page.click('button[title="Manual Entry"]');
    
    // Initially letters should be hidden
    await expect(page.locator('button:text("A")')).toBeHidden();
    
    // Click show letters toggle
    await page.click('button:text("Show Letters A-F")');
    
    // Letters should now be visible
    await expect(page.locator('button:text("A")')).toBeVisible();
    await expect(page.locator('button:text("B")')).toBeVisible();
    await expect(page.locator('button:text("F")')).toBeVisible();
    
    // Toggle text should change
    await expect(page.locator('button:text("Hide Letters A-F")')).toBeVisible();
  });

  test('should clear code when clear button clicked', async ({ page }) => {
    await page.click('button[title="Manual Entry"]');
    
    // Enter some characters
    await page.keyboard.press('1');
    await page.keyboard.press('2');
    await page.keyboard.press('3');
    
    // Verify characters are displayed
    await expect(page.locator('div').filter({ hasText: /123/ }).first()).toBeVisible();
    
    // Click clear button
    await page.click('button:text("Clear")');
    
    // Code should be cleared (showing underscores)
    await expect(page.locator('div').filter({ hasText: /____-____/ }).first()).toBeVisible();
  });

  test('should delete characters when delete button clicked', async ({ page }) => {
    await page.click('button[title="Manual Entry"]');
    
    // Enter some characters
    await page.keyboard.press('1');
    await page.keyboard.press('2');
    await page.keyboard.press('3');
    await page.keyboard.press('4');
    
    // Verify 4 characters
    await expect(page.locator('div').filter({ hasText: /1234/ }).first()).toBeVisible();
    
    // Click delete button
    await page.locator('button').filter({ has: page.locator('svg') }).first().click();
    
    // Should show 3 characters
    await expect(page.locator('div').filter({ hasText: /123_/ }).first()).toBeVisible();
  });

  test('should have instructions updated for manual entry', async ({ page }) => {
    // Check that scanner instructions mention manual entry
    await expect(page.locator('text=Use # button for manual entry when QR is unreadable')).toBeVisible();
  });

  test('should work with touch events for mobile devices', async ({ page, isMobile }) => {
    if (!isMobile) {
      test.skip('Mobile-only test');
    }
    
    await page.click('button[title="Manual Entry"]');
    
    // Test touch interactions on keypad buttons
    await page.tap('button:text("1")');
    await page.tap('button:text("2")');
    await page.tap('button:text("3")');
    await page.tap('button:text("4")');
    
    // Verify touch input works
    await expect(page.locator('div').filter({ hasText: /1234/ }).first()).toBeVisible();
  });

  test('should handle offline mode with manual entry', async ({ page }) => {
    // Simulate offline mode
    await page.route('**/*', (route) => {
      if (route.request().url().includes('api')) {
        route.abort('failed');
      } else {
        route.continue();
      }
    });
    
    await page.click('button[title="Manual Entry"]');
    
    // Enter valid backup code
    const backupCode = '1234ABCD';
    for (const char of backupCode) {
      await page.keyboard.press(char);
    }
    
    // Submit should work even offline
    await page.click('button:text("Submit")');
    
    // Should show offline acceptance or queued status
    await expect(
      page.locator('text=Accepted (offline mode), text=Queued for verification').first()
    ).toBeVisible({ timeout: 5000 });
  });
});