<?php

namespace app\net\parsers;


/**
 * 无线读卡器报文解析器（长度56）
 */
class WirelessReaderParser implements PacketParserInterface
{
    public function supports(string $hexString): bool
    {
        return strlen($hexString) === 56;
    }

    public function parse(string $hexString): array
    {
        $pattern = '/^5A(.{12})(.{26})(.{12})(.{2})A5$/';
        if (preg_match($pattern, $hexString, $matches)) {
            return [
                'hexType' => 2,
                'isMatched' => true,
                'gateway' => $matches[1],
                'card' => $matches[2],
                'reader' => $matches[3],
                'batteryLevel' => (hexdec($matches[4]) + 200) / 100,
            ];
        }
        return ['isMatched' => false];
    }
}