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

<?php

/**
 * Contract Test: Admin API Endpoints
 * 
 * Tests the Admin API endpoints contract
 * These tests MUST FAIL initially (TDD) before implementing the Admin controller endpoints
 * 
 * @package    DeskMoloni
 * @subpackage Tests\Contract
 * @version    3.0.0
 * @author     Descomplicar®
 */

define('BASEPATH', true);
define('ENVIRONMENT', 'testing');

echo "\n" . str_repeat("=", 80) . "\n";
echo "ADMIN API ENDPOINTS CONTRACT TESTS\n";
echo "TDD: These tests MUST FAIL before implementation\n";
echo str_repeat("=", 80) . "\n\n";

$test_results = [];
$start_time = microtime(true);

// Test 1: Admin Controller File Existence
echo "1. 🧪 Testing Admin Controller File Existence...\n";
$admin_file = __DIR__ . '/../../controllers/Admin.php';

if (file_exists($admin_file)) {
    echo "   ✅ Admin.php controller exists\n";
    $test_results['controller_exists'] = true;
} else {
    echo "   ❌ EXPECTED FAILURE: Admin.php controller does not exist\n";
    echo "   📝 TODO: Create controllers/Admin.php\n";
    $test_results['controller_exists'] = false;
}

// Test 2: Required Admin API Endpoints
echo "\n2. 🧪 Testing Required Admin API Endpoints...\n";

$required_endpoints = [
    // OAuth Management
    'oauth_configure' => 'OAuth configuration endpoint',
    'oauth_callback' => 'OAuth callback handler',
    'oauth_status' => 'OAuth status check',
    'oauth_test' => 'OAuth connection test',
    
    // Configuration Management
    'save_config' => 'Save module configuration',
    'get_config' => 'Get module configuration',
    'test_connection' => 'Test API connection',
    'reset_config' => 'Reset configuration',
    
    // Sync Management
    'manual_sync' => 'Manual synchronization trigger',
    'bulk_sync' => 'Bulk synchronization',
    'sync_status' => 'Synchronization status',
    'cancel_sync' => 'Cancel synchronization',
    
    // Queue Management
    'queue_status' => 'Queue status check',
    'queue_clear' => 'Clear queue',
    'queue_retry' => 'Retry failed tasks',
    'queue_stats' => 'Queue statistics',
    
    // Mapping Management
    'mapping_create' => 'Create entity mapping',
    'mapping_update' => 'Update entity mapping',
    'mapping_delete' => 'Delete entity mapping',
    'mapping_discover' => 'Auto-discover mappings',
    
    // Monitoring & Logs
    'get_logs' => 'Get synchronization logs',
    'clear_logs' => 'Clear logs',
    'get_stats' => 'Get module statistics',
    'health_check' => 'System health check'
];

if (file_exists($admin_file)) {
    $content = file_get_contents($admin_file);
    $endpoints_found = 0;
    
    foreach ($required_endpoints as $endpoint => $description) {
        // Check for method definition
        if (strpos($content, "function {$endpoint}") !== false || 
            strpos($content, "public function {$endpoint}") !== false) {
            echo "   ✅ Endpoint {$endpoint}() found - {$description}\n";
            $endpoints_found++;
        } else {
            echo "   ❌ Endpoint {$endpoint}() missing - {$description}\n";
        }
    }
    
    $test_results['endpoints_complete'] = ($endpoints_found === count($required_endpoints));
    echo "   📊 Endpoints found: {$endpoints_found}/" . count($required_endpoints) . "\n";
    
} else {
    echo "   ❌ Cannot test endpoints - controller file does not exist\n";
    $test_results['endpoints_complete'] = false;
}

// Test 3: HTTP Methods Support
echo "\n3. 🧪 Testing HTTP Methods Support...\n";

$http_methods = [
    'GET' => ['oauth_status', 'get_config', 'queue_status', 'get_logs'],
    'POST' => ['oauth_configure', 'save_config', 'manual_sync', 'mapping_create'],
    'PUT' => ['mapping_update', 'oauth_callback'],
    'DELETE' => ['mapping_delete', 'queue_clear']
];

if (file_exists($admin_file)) {
    $content = file_get_contents($admin_file);
    $methods_supported = 0;
    
    foreach ($http_methods as $method => $endpoints) {
        $method_found = false;
        foreach ($endpoints as $endpoint) {
            // Check if method restriction is implemented
            if (strpos($content, '$this->input->method()') !== false ||
                strpos($content, "'{$method}'") !== false ||
                strpos($content, "\"{$method}\"") !== false) {
                $method_found = true;
                break;
            }
        }
        
        if ($method_found) {
            echo "   ✅ {$method} method support found\n";
            $methods_supported++;
        } else {
            echo "   ❌ {$method} method support missing\n";
        }
    }
    
    $test_results['http_methods'] = ($methods_supported >= 2);
    
} else {
    echo "   ❌ Cannot test HTTP methods - controller file does not exist\n";
    $test_results['http_methods'] = false;
}

// Test 4: Response Format Contract
echo "\n4. 🧪 Testing Response Format Contract...\n";

$response_patterns = [
    'JSON responses' => 'set_content_type.*application/json',
    'Status codes' => 'set_status_header',
    'Error handling' => 'try.*catch',
    'Success responses' => 'success.*true',
    'Error responses' => 'error.*message'
];

if (file_exists($admin_file)) {
    $content = file_get_contents($admin_file);
    $patterns_found = 0;
    
    foreach ($response_patterns as $feature => $pattern) {
        if (preg_match("/{$pattern}/i", $content)) {
            echo "   ✅ {$feature} implementation found\n";
            $patterns_found++;
        } else {
            echo "   ❌ {$feature} implementation missing\n";
        }
    }
    
    $test_results['response_format'] = ($patterns_found >= 3);
    echo "   📊 Response patterns: {$patterns_found}/" . count($response_patterns) . "\n";
    
} else {
    echo "   ❌ Cannot test response format - controller file does not exist\n";
    $test_results['response_format'] = false;
}

// Test 5: Security & Authentication
echo "\n5. 🧪 Testing Security & Authentication...\n";

$security_features = [
    'Permission checks' => 'has_permission',
    'CSRF protection' => 'csrf',
    'Input validation' => 'xss_clean|htmlspecialchars',
    'Admin authentication' => 'is_admin|admin_logged_in',
    'Rate limiting' => 'rate_limit'
];

if (file_exists($admin_file)) {
    $content = file_get_contents($admin_file);
    $security_found = 0;
    
    foreach ($security_features as $feature => $pattern) {
        if (preg_match("/{$pattern}/i", $content)) {
            echo "   ✅ {$feature} found\n";
            $security_found++;
        } else {
            echo "   ❌ {$feature} missing\n";
        }
    }
    
    $test_results['security_features'] = ($security_found >= 3);
    echo "   📊 Security features: {$security_found}/" . count($security_features) . "\n";
    
} else {
    echo "   ❌ Cannot test security - controller file does not exist\n";
    $test_results['security_features'] = false;
}

// Test 6: Model Integration
echo "\n6. 🧪 Testing Model Integration...\n";

$required_models = [
    'config_model' => 'Configuration management',
    'sync_queue_model' => 'Queue management', 
    'sync_log_model' => 'Logging',
    'mapping_model' => 'Entity mapping'
];

if (file_exists($admin_file)) {
    $content = file_get_contents($admin_file);
    $models_found = 0;
    
    foreach ($required_models as $model => $description) {
        if (strpos($content, $model) !== false) {
            echo "   ✅ {$model} integration found - {$description}\n";
            $models_found++;
        } else {
            echo "   ❌ {$model} integration missing - {$description}\n";
        }
    }
    
    $test_results['model_integration'] = ($models_found === count($required_models));
    echo "   📊 Models integrated: {$models_found}/" . count($required_models) . "\n";
    
} else {
    echo "   ❌ Cannot test model integration - controller file does not exist\n";
    $test_results['model_integration'] = false;
}

// Test 7: Error Handling Contract
echo "\n7. 🧪 Testing Error Handling Contract...\n";

$error_handling_patterns = [
    'Exception handling' => 'try\s*{.*}.*catch',
    'Error logging' => 'log_message.*error',
    'User feedback' => 'set_alert|alert_float',
    'Validation errors' => 'form_validation|validate',
    'API error handling' => 'api.*error|error.*response'
];

if (file_exists($admin_file)) {
    $content = file_get_contents($admin_file);
    $error_patterns_found = 0;
    
    foreach ($error_handling_patterns as $feature => $pattern) {
        if (preg_match("/{$pattern}/i", $content)) {
            echo "   ✅ {$feature} found\n";
            $error_patterns_found++;
        } else {
            echo "   ❌ {$feature} missing\n";
        }
    }
    
    $test_results['error_handling'] = ($error_patterns_found >= 3);
    echo "   📊 Error handling patterns: {$error_patterns_found}/" . count($error_handling_patterns) . "\n";
    
} else {
    echo "   ❌ Cannot test error handling - controller file does not exist\n";
    $test_results['error_handling'] = false;
}

// Test 8: Documentation & Comments
echo "\n8. 🧪 Testing Documentation Contract...\n";

if (file_exists($admin_file)) {
    $content = file_get_contents($admin_file);
    $doc_features = 0;
    
    // Check for proper documentation
    if (strpos($content, '/**') !== false) {
        echo "   ✅ PHPDoc comments found\n";
        $doc_features++;
    } else {
        echo "   ❌ PHPDoc comments missing\n";
    }
    
    if (strpos($content, '@param') !== false) {
        echo "   ✅ Parameter documentation found\n";
        $doc_features++;
    } else {
        echo "   ❌ Parameter documentation missing\n";
    }
    
    if (strpos($content, '@return') !== false) {
        echo "   ✅ Return value documentation found\n";
        $doc_features++;
    } else {
        echo "   ❌ Return value documentation missing\n";
    }
    
    $test_results['documentation'] = ($doc_features >= 2);
    
} else {
    echo "   ❌ Cannot test documentation - controller file does not exist\n";
    $test_results['documentation'] = false;
}

// Generate Final Report
$execution_time = microtime(true) - $start_time;

echo "\n" . str_repeat("=", 80) . "\n";
echo "ADMIN API CONTRACT TEST REPORT\n";
echo str_repeat("=", 80) . "\n";

$passed_tests = array_filter($test_results, function($result) {
    return $result === true;
});

$failed_tests = array_filter($test_results, function($result) {
    return $result === false;
});

echo "Execution Time: " . number_format($execution_time, 2) . "s\n";
echo "Tests Passed: " . count($passed_tests) . "\n";
echo "Tests Failed: " . count($failed_tests) . " (EXPECTED in TDD)\n";

if (count($failed_tests) > 0) {
    echo "\n🔴 TDD STATUS: TESTS FAILING AS EXPECTED\n";
    echo "Next Step: Implement Admin controller endpoints to make tests pass\n";
    
    echo "\nFailed Test Categories:\n";
    foreach ($test_results as $test => $result) {
        if ($result === false) {
            echo "   ❌ " . ucwords(str_replace('_', ' ', $test)) . "\n";
        }
    }
} else {
    echo "\n🟢 ALL TESTS PASSING\n";
    echo "Admin API implementation appears to be complete\n";
}

echo "\n📋 IMPLEMENTATION REQUIREMENTS:\n";
echo "   1. Complete all missing API endpoints in Admin controller\n";
echo "   2. Implement proper HTTP method handling (GET/POST/PUT/DELETE)\n";
echo "   3. Add comprehensive security and authentication\n";
echo "   4. Ensure proper JSON response format\n";
echo "   5. Integrate with all required models\n";
echo "   6. Add robust error handling throughout\n";
echo "   7. Document all methods with PHPDoc\n";

echo "\n🎯 SUCCESS CRITERIA:\n";
echo "   - All " . count($required_endpoints) . " API endpoints implemented\n";
echo "   - Proper HTTP method support\n";
echo "   - Security measures in place\n";
echo "   - Consistent JSON response format\n";
echo "   - Full model integration\n";
echo "   - Comprehensive error handling\n";

// Save results
$reports_dir = __DIR__ . '/../reports';
if (!is_dir($reports_dir)) {
    mkdir($reports_dir, 0755, true);
}

$report_file = $reports_dir . '/admin_api_contract_test_' . date('Y-m-d_H-i-s') . '.json';
file_put_contents($report_file, json_encode([
    'timestamp' => date('Y-m-d H:i:s'),
    'test_type' => 'admin_api_contract',
    'status' => count($failed_tests) > 0 ? 'failing' : 'passing',
    'results' => $test_results,
    'execution_time' => $execution_time,
    'endpoints_required' => count($required_endpoints),
    'tdd_status' => 'Tests failing as expected - ready for implementation'
], JSON_PRETTY_PRINT));

echo "\n📄 Contract test results saved to: {$report_file}\n";
echo str_repeat("=", 80) . "\n";