<?php

namespace App\Services\Pacs;

use App\Services\StudyRouter\DicomTagIdentifiers;
use Carbon\Carbon;
use Illuminate\Support\Str;

final class DicomUtils
{
    public static function dateToCarbon(?string $datePart, string $timezone = 'UTC'): ?Carbon
    {
        if ($datePart === null) {
            return null;
        }

        return Carbon::createFromFormat('Ymd', $datePart, $timezone);
    }

    public static function dateTimeToCarbon(?string $datePart, ?string $timePart, string $timezone = 'UTC'): ?Carbon
    {
        if (blank($datePart) || blank($timePart)) {
            return null;
        }

        return Carbon::createFromFormat('YmdHis', $datePart . Str::before($timePart, '.'), $timezone);
    }

    public static function getDicomTagDescription(DicomTagIdentifiers $tag): string
    {
        return match ($tag) {
            DicomTagIdentifiers::PatientName => "Patient's Name",
            DicomTagIdentifiers::PatientID => 'Patient ID',
            DicomTagIdentifiers::PatientBirthDate => "Patient's Birth Date",
            DicomTagIdentifiers::PatientSex => "Patient's Sex",
            DicomTagIdentifiers::StudyInstanceUID => 'Study Instance UID',
            DicomTagIdentifiers::SeriesInstanceUID => 'Series Instance UID',
            DicomTagIdentifiers::StudyID => 'Study ID',
            DicomTagIdentifiers::SeriesNumber => 'Series Number',
            DicomTagIdentifiers::InstanceNumber => 'Instance Number',
            DicomTagIdentifiers::SOPClassUID => 'SOP Class UID',
            DicomTagIdentifiers::SOPInstanceUID => 'SOP Instance UID',
            DicomTagIdentifiers::StudyDate => 'Study Date',
            DicomTagIdentifiers::StudyTime => 'Study Time',
            DicomTagIdentifiers::AccessionNumber => 'Accession Number',
            DicomTagIdentifiers::Modality => 'Modality',
            DicomTagIdentifiers::Manufacturer => 'Manufacturer',
            DicomTagIdentifiers::InstitutionName => 'Institution Name',
            DicomTagIdentifiers::ReferringPhysicianName => "Referring Physician's Name",
            DicomTagIdentifiers::StationName => 'Station Name',
            DicomTagIdentifiers::SeriesDescription => 'Series Description',
            DicomTagIdentifiers::ManufacturerModelName => "Manufacturer's Model Name",
            DicomTagIdentifiers::PatientAge => "Patient's Age",
            DicomTagIdentifiers::PatientWeight => "Patient's Weight",
            DicomTagIdentifiers::BodyPartExamined => 'Body Part Examined',
            DicomTagIdentifiers::ProtocolName => 'Protocol Name',
            DicomTagIdentifiers::SoftwareVersions => 'Software Versions',
            DicomTagIdentifiers::AcquisitionDate => 'Acquisition Date',
            DicomTagIdentifiers::AcquisitionTime => 'Acquisition Time',
            DicomTagIdentifiers::ContentDate => 'Content Date',
            DicomTagIdentifiers::ContentTime => 'Content Time',
            DicomTagIdentifiers::AcquisitionDeviceProcessingDescription => 'Acquisition Device Processing Description',
            DicomTagIdentifiers::InstitutionAddress => 'Institution Address',
            DicomTagIdentifiers::StudyDescription => 'Study Description',
            DicomTagIdentifiers::OperatorsName => "Operator's Name",
            DicomTagIdentifiers::Private10 => 'Private Tag 10',
            DicomTagIdentifiers::IW_Private => 'IW Private Tag',
            DicomTagIdentifiers::ImageType => 'Image Type',
            DicomTagIdentifiers::PatientOrientation => 'Patient Orientation',
            DicomTagIdentifiers::ImagePositionPatient => 'Image Position (Patient)',
            DicomTagIdentifiers::ImageOrientationPatient => 'Image Orientation (Patient)',
            DicomTagIdentifiers::FrameOfReferenceUID => 'Frame of Reference UID',
            DicomTagIdentifiers::PositionReferenceIndicator => 'Position Reference Indicator',
            DicomTagIdentifiers::SliceLocation => 'Slice Location',
            DicomTagIdentifiers::SamplesPerPixel => 'Samples per Pixel',
            DicomTagIdentifiers::PhotometricInterpretation => 'Photometric Interpretation',
            DicomTagIdentifiers::Rows => 'Rows',
            DicomTagIdentifiers::Columns => 'Columns',
            DicomTagIdentifiers::PixelSpacing => 'Pixel Spacing',
            DicomTagIdentifiers::BitsAllocated => 'Bits Allocated',
            DicomTagIdentifiers::BitsStored => 'Bits Stored',
            DicomTagIdentifiers::HighBit => 'High Bit',
            DicomTagIdentifiers::PixelRepresentation => 'Pixel Representation',
            DicomTagIdentifiers::WindowCenter => 'Window Center',
            DicomTagIdentifiers::WindowWidth => 'Window Width',
            DicomTagIdentifiers::RescaleIntercept => 'Rescale Intercept',
            DicomTagIdentifiers::RescaleSlope => 'Rescale Slope',
        };
    }
}