// Category Model Tests
const { sequelize, Category } = require('../models');

async function runTests() {
  try {
    console.log('🧪 Running Category Model Tests\n');
    console.log('=====================================\n');

    // Test 1: Create a category
    console.log('Test 1: Create a category with auto-generated slug');
    const category1 = await Category.create({
      name: 'JavaScript Fundamentals',
      description: 'Basic JavaScript concepts and syntax',
      icon: 'js-icon',
      color: '#F7DF1E',
      isActive: true,
      guestAccessible: true,
      displayOrder: 1
    });
    console.log('✅ Category created with ID:', category1.id);
    console.log('   Generated slug:', category1.slug);
    console.log('   Expected slug: javascript-fundamentals');
    console.log('   Match:', category1.slug === 'javascript-fundamentals' ? '✅' : '❌');

    // Test 2: Slug generation with special characters
    console.log('\nTest 2: Slug generation handles special characters');
    const category2 = await Category.create({
      name: 'C++ & Object-Oriented Programming!',
      description: 'OOP concepts in C++',
      color: '#00599C',
      displayOrder: 2
    });
    console.log('✅ Category created with name:', category2.name);
    console.log('   Generated slug:', category2.slug);
    console.log('   Expected slug: c-object-oriented-programming');
    console.log('   Match:', category2.slug === 'c-object-oriented-programming' ? '✅' : '❌');

    // Test 3: Custom slug
    console.log('\nTest 3: Create category with custom slug');
    const category3 = await Category.create({
      name: 'Python Programming',
      slug: 'python-basics',
      description: 'Python fundamentals',
      color: '#3776AB',
      displayOrder: 3
    });
    console.log('✅ Category created with custom slug:', category3.slug);
    console.log('   Slug matches custom:', category3.slug === 'python-basics' ? '✅' : '❌');

    // Test 4: Find active categories
    console.log('\nTest 4: Find all active categories');
    const activeCategories = await Category.findActiveCategories();
    console.log('✅ Found', activeCategories.length, 'active categories');
    console.log('   Expected: 3');
    console.log('   Match:', activeCategories.length === 3 ? '✅' : '❌');

    // Test 5: Find by slug
    console.log('\nTest 5: Find category by slug');
    const foundCategory = await Category.findBySlug('javascript-fundamentals');
    console.log('✅ Found category:', foundCategory ? foundCategory.name : 'null');
    console.log('   Expected: JavaScript Fundamentals');
    console.log('   Match:', foundCategory?.name === 'JavaScript Fundamentals' ? '✅' : '❌');

    // Test 6: Guest accessible categories
    console.log('\nTest 6: Find guest-accessible categories');
    const guestCategories = await Category.getGuestAccessibleCategories();
    console.log('✅ Found', guestCategories.length, 'guest-accessible categories');
    console.log('   Expected: 1 (only JavaScript Fundamentals)');
    console.log('   Match:', guestCategories.length === 1 ? '✅' : '❌');

    // Test 7: Increment question count
    console.log('\nTest 7: Increment question count');
    const beforeCount = category1.questionCount;
    await category1.incrementQuestionCount();
    await category1.reload();
    console.log('✅ Question count incremented');
    console.log('   Before:', beforeCount);
    console.log('   After:', category1.questionCount);
    console.log('   Match:', category1.questionCount === beforeCount + 1 ? '✅' : '❌');

    // Test 8: Decrement question count
    console.log('\nTest 8: Decrement question count');
    const beforeCount2 = category1.questionCount;
    await category1.decrementQuestionCount();
    await category1.reload();
    console.log('✅ Question count decremented');
    console.log('   Before:', beforeCount2);
    console.log('   After:', category1.questionCount);
    console.log('   Match:', category1.questionCount === beforeCount2 - 1 ? '✅' : '❌');

    // Test 9: Increment quiz count
    console.log('\nTest 9: Increment quiz count');
    const beforeQuizCount = category1.quizCount;
    await category1.incrementQuizCount();
    await category1.reload();
    console.log('✅ Quiz count incremented');
    console.log('   Before:', beforeQuizCount);
    console.log('   After:', category1.quizCount);
    console.log('   Match:', category1.quizCount === beforeQuizCount + 1 ? '✅' : '❌');

    // Test 10: Update category name (slug auto-regenerates)
    console.log('\nTest 10: Update category name (slug should regenerate)');
    const oldSlug = category3.slug;
    category3.name = 'Advanced Python';
    await category3.save();
    await category3.reload();
    console.log('✅ Category name updated');
    console.log('   Old slug:', oldSlug);
    console.log('   New slug:', category3.slug);
    console.log('   Expected new slug: advanced-python');
    console.log('   Match:', category3.slug === 'advanced-python' ? '✅' : '❌');

    // Test 11: Unique constraint on name
    console.log('\nTest 11: Unique constraint on category name');
    try {
      await Category.create({
        name: 'JavaScript Fundamentals', // Duplicate name
        description: 'Another JS category'
      });
      console.log('❌ Should have thrown error for duplicate name');
    } catch (error) {
      console.log('✅ Unique constraint enforced:', error.name === 'SequelizeUniqueConstraintError' ? '✅' : '❌');
    }

    // Test 12: Unique constraint on slug
    console.log('\nTest 12: Unique constraint on slug');
    try {
      await Category.create({
        name: 'Different Name',
        slug: 'javascript-fundamentals' // Duplicate slug
      });
      console.log('❌ Should have thrown error for duplicate slug');
    } catch (error) {
      console.log('✅ Unique constraint enforced:', error.name === 'SequelizeUniqueConstraintError' ? '✅' : '❌');
    }

    // Test 13: Color validation (hex format)
    console.log('\nTest 13: Color validation (must be hex format)');
    try {
      await Category.create({
        name: 'Invalid Color Category',
        color: 'red' // Invalid - should be #RRGGBB
      });
      console.log('❌ Should have thrown validation error for invalid color');
    } catch (error) {
      console.log('✅ Color validation enforced:', error.name === 'SequelizeValidationError' ? '✅' : '❌');
    }

    // Test 14: Slug validation (lowercase alphanumeric with hyphens)
    console.log('\nTest 14: Slug validation (must be lowercase with hyphens only)');
    try {
      await Category.create({
        name: 'Valid Name',
        slug: 'Invalid_Slug!' // Invalid - has underscore and exclamation
      });
      console.log('❌ Should have thrown validation error for invalid slug');
    } catch (error) {
      console.log('✅ Slug validation enforced:', error.name === 'SequelizeValidationError' ? '✅' : '❌');
    }

    // Test 15: Get categories with stats
    console.log('\nTest 15: Get categories with stats');
    const categoriesWithStats = await Category.getCategoriesWithStats();
    console.log('✅ Retrieved', categoriesWithStats.length, 'categories with stats');
    console.log('   First category stats:');
    console.log('   - Name:', categoriesWithStats[0].name);
    console.log('   - Question count:', categoriesWithStats[0].questionCount);
    console.log('   - Quiz count:', categoriesWithStats[0].quizCount);
    console.log('   - Guest accessible:', categoriesWithStats[0].guestAccessible);

    // Cleanup
    console.log('\n=====================================');
    console.log('🧹 Cleaning up test data...');
    await Category.destroy({ where: {}, truncate: true });
    console.log('✅ Test data deleted\n');

    await sequelize.close();
    console.log('✅ All Category Model Tests Completed!\n');
    process.exit(0);

  } catch (error) {
    console.error('\n❌ Test failed with error:', error.message);
    console.error('Error details:', error);
    await sequelize.close();
    process.exit(1);
  }
}

runTests();