<?php
declare(strict_types=1);

namespace WebCalendar\WP\Bridge;

defined( 'ABSPATH' ) || exit;

use WebCalendar\Core\Domain\Repository\ConfigRepositoryInterface;

/**
 * WordPress implementation of the ConfigRepositoryInterface.
 */
class WpConfigRepository implements ConfigRepositoryInterface {

	/**
	 * Option name prefix.
	 */
	const OPTION_PREFIX = 'webcal_config_';

	/**
	 * Get a configuration value.
	 *
	 * @param string $key Configuration key.
	 * @return string|null
	 */
	public function get( string $key ): ?string {
		$value = get_option( self::OPTION_PREFIX . $key, null );
		return is_scalar( $value ) ? (string) $value : null;
	}

	/**
	 * Get all configuration values.
	 *
	 * @return array<string, string>
	 */
	public function getAll(): array {
		global $wpdb;
		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
		$results = $wpdb->get_results(
			$wpdb->prepare(
				"SELECT option_name, option_value FROM $wpdb->options WHERE option_name LIKE %s",
				self::OPTION_PREFIX . '%'
			)
		);

		$config = [];
		foreach ( $results as $row ) {
			if ( ! is_object( $row ) || ! isset( $row->option_name ) || ! isset( $row->option_value ) ) {
				continue;
			}
			$key            = str_replace( self::OPTION_PREFIX, '', (string) $row->option_name );
			$config[ $key ] = is_scalar( $row->option_value ) ? (string) $row->option_value : '';
		}

		return $config;
	}

	/**
	 * Set a configuration value.
	 *
	 * @param string $key Configuration key.
	 * @param string $value Configuration value.
	 */
	public function set( string $key, string $value ): void {
		update_option( self::OPTION_PREFIX . $key, $value );
	}

	/**
	 * Delete a configuration value.
	 *
	 * @param string $key Configuration key.
	 */
	public function delete( string $key ): void {
		delete_option( self::OPTION_PREFIX . $key );
	}
}