<?php
/**
 * API de prueba para configuraciones (sin autenticación)
 */

require_once '../config/config.php';

// Simular autenticación para pruebas
session_start();
$_SESSION['admin_logged_in'] = true;
$_SESSION['admin_username'] = 'test_admin';

header('Content-Type: application/json; charset=utf-8');
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS');
header('Access-Control-Allow-Headers: Content-Type');

$method = $_SERVER['REQUEST_METHOD'];
$action = $_GET['action'] ?? '';

try {
    // Respuesta simple para test de conectividad
    if ($action === 'ping') {
        echo json_encode([
            'success' => true,
            'message' => 'API funcionando correctamente',
            'timestamp' => date('Y-m-d H:i:s'),
            'method' => $method
        ]);
        exit;
    }
    
    switch ($method) {
        case 'GET':
            switch ($action) {
                case 'status':
                    // Estado general del sistema
                    $allConfigs = getAllConfigsFromDB();
                    $whatsappValidation = validateWhatsAppConfigFromDB();
                    
                    echo json_encode([
                        'success' => true,
                        'data' => [
                            'total_configs' => count($allConfigs),
                            'whatsapp_configured' => $whatsappValidation['valid'],
                            'database_migrated' => !empty($allConfigs),
                            'installation_completed' => isInstallationCompleted(),
                            'server_time' => date('Y-m-d H:i:s')
                        ]
                    ]);
                    break;
                    
                case 'all':
                    // Obtener todas las configuraciones
                    $configs = getAllConfigsFromDB();
                    echo json_encode([
                        'success' => true,
                        'data' => $configs
                    ]);
                    break;
                    
                case 'whatsapp':
                    // Obtener configuración de WhatsApp
                    $whatsappConfig = getWhatsAppConfigFromDB();
                    echo json_encode([
                        'success' => true,
                        'data' => $whatsappConfig
                    ]);
                    break;
                    
                case 'test_db':
                    // Test de conexión a BD
                    try {
                        $pdo = createDbConnection();
                        $tableExists = $pdo->query("SHOW TABLES LIKE 'system_config'")->rowCount() > 0;
                        
                        echo json_encode([
                            'success' => true,
                            'data' => [
                                'db_connected' => true,
                                'table_exists' => $tableExists,
                                'config_count' => $tableExists ? $pdo->query("SELECT COUNT(*) FROM system_config")->fetchColumn() : 0
                            ]
                        ]);
                    } catch (Exception $e) {
                        echo json_encode([
                            'success' => false,
                            'error' => 'Error de BD: ' . $e->getMessage()
                        ]);
                    }
                    break;
                    
                default:
                    throw new Exception('Acción GET no reconocida: ' . $action);
            }
            break;
            
        case 'POST':
            $input = json_decode(file_get_contents('php://input'), true);
            
            switch ($action) {
                case 'save_test':
                    // Guardar configuración de prueba
                    $key = 'api_test_' . time();
                    $value = 'Test desde API - ' . date('Y-m-d H:i:s');
                    
                    $result = saveConfigToDB($key, $value, 'Prueba desde API');
                    
                    echo json_encode([
                        'success' => $result,
                        'message' => $result ? 'Configuración guardada correctamente' : 'Error guardando configuración',
                        'data' => [
                            'key' => $key,
                            'value' => $value
                        ]
                    ]);
                    break;
                    
                case 'save_whatsapp_test':
                    // Guardar config de WhatsApp de prueba
                    $testConfig = [
                        'token' => 'test_token_' . time(),
                        'phone_number_id' => '123456789',
                        'webhook_verify_token' => 'webhook_' . time()
                    ];
                    
                    $result = saveWhatsAppConfigToDB($testConfig);
                    
                    echo json_encode([
                        'success' => $result,
                        'message' => $result ? 'WhatsApp config guardada' : 'Error guardando WhatsApp config',
                        'data' => $testConfig
                    ]);
                    break;
                    
                default:
                    throw new Exception('Acción POST no reconocida: ' . $action);
            }
            break;
            
        default:
            throw new Exception('Método HTTP no permitido: ' . $method);
    }
} catch (Exception $e) {
    http_response_code(500);
    echo json_encode([
        'success' => false,
        'error' => $e->getMessage(),
        'trace' => $e->getTraceAsString()
    ]);
}
?>