<?php
/**
 * Daily counters shown on the Dashboard. Kept separately from the activity log so the Dashboard
 * still has numbers when logging is off.
 *
 * @package AjSec
 */

namespace AjSec;

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

/**
 * Daily counters.
 */
final class Stats {

	const OPTION = 'ajsec_stats';

	/**
	 * Counter keys.
	 *
	 * @return string[]
	 */
	public static function keys() {
		return array( 'lockouts', 'failed_logins', 'waf_blocks', 'rate_limited', 'xmlrpc_blocked' );
	}

	/**
	 * Today's counters (site time zone).
	 *
	 * @return array
	 */
	public static function today() {
		$today = current_time( 'Y-m-d' );
		$saved = get_option( self::OPTION, array() );
		if ( ! is_array( $saved ) || ! isset( $saved['day'] ) || $saved['day'] !== $today ) {
			$saved = array( 'day' => $today );
		}
		foreach ( self::keys() as $key ) {
			$saved[ $key ] = isset( $saved[ $key ] ) ? (int) $saved[ $key ] : 0;
		}
		return $saved;
	}

	/**
	 * Increment a counter.
	 *
	 * @param string $key Counter key.
	 */
	public static function bump( $key ) {
		if ( ! in_array( $key, self::keys(), true ) ) {
			return;
		}
		$stats         = self::today();
		$stats[ $key ] = $stats[ $key ] + 1;
		update_option( self::OPTION, $stats, false );
	}
}