<?php
/**
 * Database Manager Class
 *
 * Gestión de tablas personalizadas del tema
 *
 * @package ROI_Theme
 * @since 2.2.0
 * @deprecated 2.0.0 Use ROITheme\Infrastructure\Persistence\WordPress\WordPressComponentRepository instead
 * @see ROITheme\Infrastructure\Persistence\WordPress\WordPressComponentRepository
 *
 * Esta clase será eliminada en la versión 3.0.0
 * Por favor migre su código a la nueva arquitectura Clean Architecture
 */

if (!defined('ABSPATH')) {
	exit;
}

/**
 * ROI_DB_Manager
 *
 * @deprecated 2.0.0
 */
class ROI_DB_Manager {

	/**
	 * Nombre de la tabla de componentes (sin prefijo)
	 *
	 * @deprecated 2.0.0
	 */
	const TABLE_COMPONENTS = 'roi_theme_components';

	/**
	 * Nombre de la tabla de defaults (sin prefijo)
	 *
	 * @deprecated 2.0.0
	 */
	const TABLE_DEFAULTS = 'roi_theme_components_defaults';

	/**
	 * Versión de la base de datos
	 *
	 * @deprecated 2.0.0
	 */
	const DB_VERSION = '1.0';

	/**
	 * Opción para almacenar la versión de la DB
	 *
	 * @deprecated 2.0.0
	 */
	const DB_VERSION_OPTION = 'roi_db_version';

	/**
	 * @var \ROITheme\Infrastructure\Adapters\LegacyDBManagerAdapter
	 */
	private $adapter;

	/**
	 * Constructor
	 *
	 * @deprecated 2.0.0
	 */
	public function __construct() {
		_deprecated_function(
			__CLASS__ . '::__construct',
			'2.0.0',
			'ROITheme\Infrastructure\Persistence\WordPress\WordPressComponentRepository'
		);

		$this->logDeprecation(__CLASS__, __FUNCTION__);

		// Hook para verificar/actualizar DB en cada carga
		add_action('admin_init', array($this, 'maybe_create_tables'));

		// Inicializar adapter para mantener compatibilidad
		$this->adapter = $this->getLegacyAdapter();
	}

	/**
	 * Obtener nombre completo de tabla con prefijo
	 *
	 * @deprecated 2.0.0
	 *
	 * @param string $table_type Tipo de tabla: 'components' (personalizaciones) o 'defaults' (valores por defecto)
	 * @return string Nombre completo de la tabla con prefijo
	 */
	public function get_table_name($table_type = 'components') {
		_deprecated_function(
			__FUNCTION__,
			'2.0.0',
			'Direct database access not recommended - use repositories'
		);

		global $wpdb;

		if ($table_type === 'defaults') {
			return $wpdb->prefix . self::TABLE_DEFAULTS;
		}

		return $wpdb->prefix . self::TABLE_COMPONENTS;
	}

	/**
	 * Verificar si las tablas necesitan ser creadas o actualizadas
	 *
	 * @deprecated 2.0.0 Tables are now managed through database migrations
	 */
	public function maybe_create_tables() {
		// Keep for backward compatibility but tables are managed differently now
		$installed_version = get_option(self::DB_VERSION_OPTION);

		if ($installed_version !== self::DB_VERSION) {
			$this->create_tables();
			update_option(self::DB_VERSION_OPTION, self::DB_VERSION);
		}
	}

	/**
	 * Crear tablas personalizadas
	 *
	 * @deprecated 2.0.0 Use DatabaseMigrator service instead
	 */
	public function create_tables() {
		_deprecated_function(
			__FUNCTION__,
			'2.0.0',
			'ROITheme\Infrastructure\Services\DatabaseMigrator'
		);

		global $wpdb;

		$charset_collate = $wpdb->get_charset_collate();
		require_once(ABSPATH . 'wp-admin/includes/upgrade.php');

		// Table structure (kept for backward compatibility)
		$table_structure = "(
			id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
			component_name VARCHAR(50) NOT NULL,
			config_key VARCHAR(100) NOT NULL,
			config_value TEXT NOT NULL,
			data_type ENUM('string', 'boolean', 'integer', 'json') DEFAULT 'string',
			version VARCHAR(10) DEFAULT NULL,
			updated_at DATETIME NOT NULL,
			created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
			PRIMARY KEY (id),
			UNIQUE KEY component_config (component_name, config_key),
			INDEX idx_component (component_name),
			INDEX idx_updated (updated_at)
		) $charset_collate;";

		// Create components table
		$table_components = $this->get_table_name('components');
		$sql_components = "CREATE TABLE IF NOT EXISTS $table_components $table_structure";
		dbDelta($sql_components);

		// Create defaults table
		$table_defaults = $this->get_table_name('defaults');
		$sql_defaults = "CREATE TABLE IF NOT EXISTS $table_defaults $table_structure";
		dbDelta($sql_defaults);
	}

	/**
	 * Verificar si una tabla existe
	 *
	 * @deprecated 2.0.0
	 *
	 * @param string $table_type Tipo de tabla
	 * @return bool True si existe, false si no
	 */
	public function table_exists($table_type = 'components') {
		global $wpdb;
		$table_name = $this->get_table_name($table_type);
		$query = $wpdb->prepare('SHOW TABLES LIKE %s', $table_name);
		return $wpdb->get_var($query) === $table_name;
	}

	/**
	 * Save component configuration
	 *
	 * @deprecated 2.0.0 Use SaveComponentUseCase::execute() instead
	 *
	 * @param string $component_name Component name (e.g., 'top_notification_bar', 'navbar', 'footer', 'hero_section')
	 * @param string $config_key Configuration key
	 * @param mixed $config_value Configuration value
	 * @param string $data_type Data type (string, boolean, integer, array)
	 * @param string|null $version Schema version
	 * @param string $table_type Table type (components or defaults)
	 * @return bool Success status
	 */
	public function save_config($component_name, $config_key, $config_value, $data_type = 'string', $version = null, $table_type = 'components') {
		_deprecated_function(
			__FUNCTION__,
			'2.0.0',
			'ROITheme\Application\UseCases\SaveComponent\SaveComponentUseCase::execute()'
		);

		$this->logDeprecation(__CLASS__, __FUNCTION__, func_get_args());

		// Delegar al adapter para mantener funcionalidad
		return $this->adapter->save_config(
			$component_name,
			$config_key,
			$config_value,
			$data_type,
			$version,
			$table_type
		);
	}

	/**
	 * Get component configuration
	 *
	 * @deprecated 2.0.0 Use GetComponentUseCase::execute() instead
	 *
	 * @param string $component_name Component name
	 * @param string|null $config_key Specific configuration key (null for all)
	 * @param string $table_type Table type (components or defaults)
	 * @return mixed Configuration value(s) or null
	 */
	public function get_config($component_name, $config_key = null, $table_type = 'components') {
		_deprecated_function(
			__FUNCTION__,
			'2.0.0',
			'ROITheme\Application\UseCases\GetComponent\GetComponentUseCase::execute()'
		);

		$this->logDeprecation(__CLASS__, __FUNCTION__, func_get_args());

		return $this->adapter->get_config($component_name, $config_key, $table_type);
	}

	/**
	 * Delete component configuration
	 *
	 * @deprecated 2.0.0 Use DeleteComponentUseCase::execute() instead
	 *
	 * @param string $component_name Component name
	 * @param string|null $config_key Specific configuration key (null for all component)
	 * @param string $table_type Table type (components or defaults)
	 * @return bool Success status
	 */
	public function delete_config($component_name, $config_key = null, $table_type = 'components') {
		_deprecated_function(
			__FUNCTION__,
			'2.0.0',
			'ROITheme\Application\UseCases\DeleteComponent\DeleteComponentUseCase::execute()'
		);

		$this->logDeprecation(__CLASS__, __FUNCTION__, func_get_args());

		// If deleting specific key, not supported in new architecture
		// Delete entire component instead
		return $this->adapter->delete_config($component_name, $table_type);
	}

	/**
	 * List all components
	 *
	 * @deprecated 2.0.0 Use ComponentRepository::findAll() instead
	 *
	 * @param string $table_type Table type
	 * @return array List of components
	 */
	public function list_components($table_type = 'components') {
		_deprecated_function(
			__FUNCTION__,
			'2.0.0',
			'ROITheme\Domain\Contracts\ComponentRepositoryInterface::findAll()'
		);

		$this->logDeprecation(__CLASS__, __FUNCTION__, func_get_args());

		global $wpdb;
		$table = $this->get_table_name($table_type);

		$query = "SELECT DISTINCT component_name FROM $table ORDER BY component_name ASC";
		$components = $wpdb->get_col($query);

		return $components ?: array();
	}

	/**
	 * Get legacy adapter
	 *
	 * @return \ROITheme\Infrastructure\Adapters\LegacyDBManagerAdapter
	 */
	private function getLegacyAdapter() {
		if (!class_exists('ROITheme\Infrastructure\Adapters\LegacyDBManagerAdapter')) {
			require_once get_template_directory() . '/vendor/autoload.php';
		}

		return new \ROITheme\Infrastructure\Adapters\LegacyDBManagerAdapter();
	}

	/**
	 * Log deprecation usage
	 *
	 * @param string $class Class name
	 * @param string $method Method name
	 * @param array $args Arguments
	 */
	private function logDeprecation($class, $method, $args = array()) {
		if (!class_exists('ROITheme\Infrastructure\Logging\DeprecationLogger')) {
			require_once get_template_directory() . '/vendor/autoload.php';
		}

		$logger = \ROITheme\Infrastructure\Logging\DeprecationLogger::getInstance();
		$logger->log(
			$class,
			$method,
			$args,
			'See documentation for Clean Architecture migration',
			'2.0.0'
		);
	}
}