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/home/yanggyein/yanggyein/yanggyein/app/Repositories/NvrRepository.php

<?php

namespace App\Repositories;

use App\Nvr;
use Illuminate\Support\Str;

class NvrRepository implements NvrRepositoryInterface
{
    /*  NVR 리스트 */
    public function all()
    {
        return Nvr::all();
    }

/* 농가 상세 페이지에 표기될  NVR 정보 */
    public function showFarmNvrInfo($farm)
    {
        $nvrs = Nvr::where('farm_id', $farm->id)->get();
        $maces = array();
        foreach ($nvrs as $key => $ddns) {
            if (!empty($ddns)) {
                $macTemp = '';
                $ddns = $ddns->ddns;
                $ddns = strtoupper($ddns);
                for ($i = 0; $i <= strlen($ddns); $i += 2) {
                    $tmpstr = substr($ddns, $i, 2);
                    $macTemp = $macTemp . ':' . $tmpstr;
                }
                $macTemp = substr($macTemp, 1);
                $macTemp = substr($macTemp, 0, -1);
                $maces[$key] = $macTemp;
                $nvrs[$key]['mac'] = $maces[$key];
            }
        }

return $nvrs;
    }

/* DDNS 대문자 :  MAC 주소로 변경 (xx:xx:xx:xx:xx) */
    public function changeToMac($ddns)
    {
        $macTemp = '';
        $ddns = strtoupper($ddns);
        for ($i = 0; $i <= strlen($ddns); $i += 2) {
            $tmpstr = substr($ddns, $i, 2);
            $macTemp = $macTemp . ':' . $tmpstr;
        }
        $macTemp = substr($macTemp, 1);
        $macTemp = substr($macTemp, 0, -1);
        $macTemp;

return $macTemp;
    }

/* MAC 주소를 DDNS 로 변경 (소문자) */
    public function changeToDdns($mac)
    {
        $macTemp = str_replace(':', '', $mac);
        $mac = Str::lower($macTemp);
        return $mac;
    }
}