/**
 * Descomplicar® Crescimento Digital
 * https://descomplicar.pt
 */

<?php
/**
 * WordPress cache integration tests for Care Booking Block plugin
 *
 * @package CareBookingBlock
 */

/**
 * Test WordPress cache integration functionality
 */
class Test_Cache_Integration extends Care_Booking_Test_Case
{

    /**
     * Test cache manager class exists and can be instantiated
     */
    public function test_cache_manager_class_exists()
    {
        $this->assertTrue(class_exists('Care_Booking_Cache_Manager'), 'Care_Booking_Cache_Manager class should exist');
        
        $cache_manager = new Care_Booking_Cache_Manager();
        $this->assertInstanceOf('Care_Booking_Cache_Manager', $cache_manager);
    }

    /**
     * Test cache blocked doctors list
     */
    public function test_cache_blocked_doctors()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        $blocked_doctors = [999, 998, 997];
        
        // Set cache
        $result = $cache_manager->set_blocked_doctors($blocked_doctors);
        $this->assertTrue($result, 'Should successfully cache blocked doctors');
        
        // Get from cache
        $cached_doctors = $cache_manager->get_blocked_doctors();
        $this->assertIsArray($cached_doctors, 'Should return array from cache');
        $this->assertEquals($blocked_doctors, $cached_doctors, 'Cached data should match original data');
        
        // Verify WordPress transient was set
        $transient_data = get_transient('care_booking_doctors_blocked');
        $this->assertEquals($blocked_doctors, $transient_data, 'WordPress transient should contain correct data');
    }

    /**
     * Test cache blocked services for doctor
     */
    public function test_cache_blocked_services_by_doctor()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        $doctor_id = 999;
        $blocked_services = [888, 887, 886];
        
        // Set cache
        $result = $cache_manager->set_blocked_services($doctor_id, $blocked_services);
        $this->assertTrue($result, 'Should successfully cache blocked services');
        
        // Get from cache
        $cached_services = $cache_manager->get_blocked_services($doctor_id);
        $this->assertIsArray($cached_services);
        $this->assertEquals($blocked_services, $cached_services);
        
        // Verify WordPress transient was set with correct key
        $transient_key = "care_booking_services_blocked_$doctor_id";
        $transient_data = get_transient($transient_key);
        $this->assertEquals($blocked_services, $transient_data);
    }

    /**
     * Test cache expiration
     */
    public function test_cache_expiration()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        // Set short expiration for testing
        $blocked_doctors = [999];
        $result = $cache_manager->set_blocked_doctors($blocked_doctors, 1); // 1 second expiration
        $this->assertTrue($result);
        
        // Verify cache exists
        $cached_data = $cache_manager->get_blocked_doctors();
        $this->assertEquals($blocked_doctors, $cached_data);
        
        // Wait for expiration
        sleep(2);
        
        // Verify cache expired
        $expired_data = $cache_manager->get_blocked_doctors();
        $this->assertFalse($expired_data, 'Cache should expire after timeout');
    }

    /**
     * Test cache invalidation
     */
    public function test_cache_invalidation()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        // Set initial cache data
        $cache_manager->set_blocked_doctors([999, 998]);
        $cache_manager->set_blocked_services(999, [888, 887]);
        $cache_manager->set_blocked_services(998, [886]);
        
        // Verify cache exists
        $this->assertNotFalse($cache_manager->get_blocked_doctors());
        $this->assertNotFalse($cache_manager->get_blocked_services(999));
        $this->assertNotFalse($cache_manager->get_blocked_services(998));
        
        // Invalidate all cache
        $result = $cache_manager->invalidate_all();
        $this->assertTrue($result, 'Should successfully invalidate all cache');
        
        // Verify cache was cleared
        $this->assertFalse($cache_manager->get_blocked_doctors(), 'Blocked doctors cache should be cleared');
        $this->assertFalse($cache_manager->get_blocked_services(999), 'Blocked services cache should be cleared');
        $this->assertFalse($cache_manager->get_blocked_services(998), 'Blocked services cache should be cleared');
    }

    /**
     * Test cache hash for change detection
     */
    public function test_cache_hash_management()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        // Set initial hash
        $initial_hash = 'test_hash_123';
        $result = $cache_manager->set_restrictions_hash($initial_hash);
        $this->assertTrue($result);
        
        // Get hash
        $cached_hash = $cache_manager->get_restrictions_hash();
        $this->assertEquals($initial_hash, $cached_hash);
        
        // Update hash
        $new_hash = 'test_hash_456';
        $cache_manager->set_restrictions_hash($new_hash);
        
        $updated_hash = $cache_manager->get_restrictions_hash();
        $this->assertEquals($new_hash, $updated_hash);
        $this->assertNotEquals($initial_hash, $updated_hash);
    }

    /**
     * Test cache miss behavior
     */
    public function test_cache_miss_behavior()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        // Test getting non-existent cache
        $non_existent_doctors = $cache_manager->get_blocked_doctors();
        $this->assertFalse($non_existent_doctors, 'Should return false for cache miss');
        
        $non_existent_services = $cache_manager->get_blocked_services(123);
        $this->assertFalse($non_existent_services, 'Should return false for cache miss');
        
        $non_existent_hash = $cache_manager->get_restrictions_hash();
        $this->assertFalse($non_existent_hash, 'Should return false for cache miss');
    }

    /**
     * Test cache key generation
     */
    public function test_cache_key_generation()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        // Test different doctor IDs generate different cache keys
        $doctor1_services = [888];
        $doctor2_services = [887];
        
        $cache_manager->set_blocked_services(999, $doctor1_services);
        $cache_manager->set_blocked_services(998, $doctor2_services);
        
        // Verify separate caches
        $cached_services_1 = $cache_manager->get_blocked_services(999);
        $cached_services_2 = $cache_manager->get_blocked_services(998);
        
        $this->assertEquals($doctor1_services, $cached_services_1);
        $this->assertEquals($doctor2_services, $cached_services_2);
        $this->assertNotEquals($cached_services_1, $cached_services_2);
    }

    /**
     * Test cache size limits and memory usage
     */
    public function test_cache_size_and_memory()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        // Test caching large dataset
        $large_doctor_list = range(1, 1000); // 1000 doctor IDs
        
        $result = $cache_manager->set_blocked_doctors($large_doctor_list);
        $this->assertTrue($result, 'Should handle large datasets');
        
        $cached_large_list = $cache_manager->get_blocked_doctors();
        $this->assertEquals($large_doctor_list, $cached_large_list, 'Large dataset should be cached correctly');
        $this->assertCount(1000, $cached_large_list, 'All items should be cached');
    }

    /**
     * Test cache with WordPress object cache compatibility
     */
    public function test_wordpress_object_cache_compatibility()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        // Test with WordPress wp_cache functions if available
        if (function_exists('wp_cache_set') && function_exists('wp_cache_get')) {
            $test_data = [999, 998];
            
            // Use WordPress object cache directly
            wp_cache_set('care_booking_test', $test_data, 'care_booking', 3600);
            $wp_cached_data = wp_cache_get('care_booking_test', 'care_booking');
            
            $this->assertEquals($test_data, $wp_cached_data, 'WordPress object cache should work with plugin data');
        } else {
            $this->markTestSkipped('WordPress object cache not available in test environment');
        }
    }

    /**
     * Test cache performance benchmarks
     */
    public function test_cache_performance()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        $test_data = range(1, 100);
        
        // Measure cache write performance
        $start_time = microtime(true);
        $cache_manager->set_blocked_doctors($test_data);
        $write_time = microtime(true) - $start_time;
        
        $this->assertLessThan(0.1, $write_time, 'Cache write should complete in under 100ms');
        
        // Measure cache read performance
        $start_time = microtime(true);
        $cached_data = $cache_manager->get_blocked_doctors();
        $read_time = microtime(true) - $start_time;
        
        $this->assertLessThan(0.05, $read_time, 'Cache read should complete in under 50ms');
        $this->assertEquals($test_data, $cached_data);
    }

    /**
     * Test cache invalidation on restriction changes
     */
    public function test_cache_invalidation_on_changes()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        // Set initial cache
        $cache_manager->set_blocked_doctors([999]);
        $cache_manager->set_blocked_services(999, [888]);
        
        // Verify cache exists
        $this->assertNotFalse($cache_manager->get_blocked_doctors());
        $this->assertNotFalse($cache_manager->get_blocked_services(999));
        
        // Simulate restriction change event
        do_action('care_booking_restriction_updated', 'doctor', 999);
        
        // Cache should be automatically invalidated
        $this->assertFalse($cache_manager->get_blocked_doctors(), 'Cache should be invalidated on restriction change');
    }

    /**
     * Test cache with concurrent access
     */
    public function test_concurrent_cache_access()
    {
        $cache_manager = new Care_Booking_Cache_Manager();
        
        // Simulate concurrent writes (in real scenario this would be multiple requests)
        $cache_manager->set_blocked_doctors([999]);
        $cache_manager->set_blocked_doctors([998]);
        $cache_manager->set_blocked_doctors([997]);
        
        // Last write should win
        $final_data = $cache_manager->get_blocked_doctors();
        $this->assertEquals([997], $final_data, 'Last cache write should be preserved');
    }
}