<?php
/** Retained attendance facts for shared Free privacy; no paid execution. */
namespace Abientot\Repositories;
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}
final class AttendanceRepository {
	public function present(): bool {
		$present = OptionalStoreSchema::present(
			new ResourceCapacityRepository(),
			'abientot_agenda_schema_version',
			'1',
			array(
				'attendance' => array(
					'appointment_id' => 'bigint unsigned',
					'state'          => 'varchar(20)',
					'revision'       => 'bigint unsigned',
					'arrived_at'     => 'datetime',
					'actor_user_id'  => 'bigint unsigned',
					'updated_at'     => 'datetime'
				)
			),
			array( 'attendance' => array( array( 'appointment_id' ) ) )
		);
		if ( ! $present ) {
			return false;
		}
		global $wpdb;
		$table  = $wpdb->prefix . 'abientot_attendance';
		$engine = $wpdb->get_var( $wpdb->prepare( 'SELECT ENGINE FROM information_schema.TABLES WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME=%s', $table ) );
		if ( $wpdb->last_error || strtoupper( (string) $engine ) !== 'INNODB' ) {
			throw new \RuntimeException( 'Attendance storage must support transactional erasure.' );
		}
		return true;
	}
}