<?php

/*
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 */

namespace app\common\library;
// include 'Nanodicom/nanodicom.php';
// use app\common\library\nanodicom\Nanodicom;

require dirname(__FILE__).'/nanodicom/Nanodicom.php';
use Nanodicom;
use app\common\library\DicomPaserTag;
use think\Exception;

class DicomPaser {
    public static function paser($filePath = '') { 

        if(empty($filePath)) {

            throw new Exception("The filePath $filePath is empty or null");
        }

        if(!file_exists($filePath)) {
            throw new Exception("The filePath $filePath not exist");
        }

        if(!is_file($filePath)) {
            throw new Exception("The filePath $filePath not file");
        }

        $dicom = Nanodicom::factory($filePath);
        if(! $dicom->is_dicom()) {
            throw new Exception("The filePath $filePath not dcm file");
        }

        $a = $dicom->get(0x0010, 0x0010, 'N/A');
        return self::formatDataSet($dicom);
    }

    public static function formatDataSet($dicom) {
        $DICOM_TAG = DicomPaserTag::DICOM_TAG;
        $dataSet = [];
        foreach ($DICOM_TAG as $Tag) {
            $dataSet[$Tag['field']] = $dicom->get($Tag['group'], $Tag['element'], $Tag['default']);
        }
        return $dataSet;
    }
}