<?php
declare(strict_types=1);

namespace Wavelog\QSLManager;

use DateTime;
use DateTimeZone;
use DomainException;

class QSO
{
	private string $qsoID;
	private string $qsoDateTime;
	private string $duration;
	private string $de;
	private string $profilename;
	private string $dx;
	private string $mode;
	private string $submode;
	private ?string $band;
	private string $bandRX;
	private string $frequency;
	private string $frequencyRX;
	private string $rstR;
	private string $srx;
	private string $srxstring;
	private string $rstS;
	private string $stx;
	private string $stxstring;
	private string $propagationMode;
	private string $satelliteMode;
	private string $satelliteName;
	private string $name;
	private string $qth;
	private string $email;
	private string $address;
	private string $deGridsquare;
	private string $deIOTA;
	private string $deSig;
	private string $deSigInfo;
	private string $deIOTAIslandID;
	private string $deSOTAReference;
	private string $deWWFFReference;
	/** Awards */
	private string $cqzone;
	private string $ituzone;
	private string $state;
	private string $dxcc;
	private string $dxccid;
	private string $iota;
	private string $continent;
	private string $region;
	private string $county;
	/** @var string[] */
	private string $deVUCCGridsquares;
	private string $dxGridsquare;
	private string $dxSig;
	private string $dxSigInfo;
	private string $dxDARCDOK;
	private string $dxSOTAReference;
	private string $dxPOTAReference;
	private string $dxWWFFReference;
	/** @var string[] */
	private string $dxVUCCGridsquares;
	private string $QSLMsg;
	private ?DateTime $QSLReceivedDate;
	private string $QSLReceived;
	private string $QSLReceivedVia;
	private ?DateTime $QSLSentDate;
	private string $QSLSent;
	private string $QSLSentVia;
	private string $QSLVia;
	private ?DateTime $end;
	/** QSL **/
	private string $qsl;
	private string $lotw;
	private string $eqsl;
	private string $clublog;
	private string $qrz;
	private string $dcl;
	/** Lotw callsign info **/
	private string $callsign;
	private string $lastupload;
	private string $lotw_hint;
	private string $operator;
	private string $comment;
	private string $contest;
	/** Orbit type **/
	private string $orbit;

	private string $stationpower;
	private ?string $distance;
	private string $antennaazimuth;
	private string $antennaelevation;

	private string $measurement_base;

	/** ADIF 3.15 Cols **/
	private string $cnty_alt;
	private string $my_cnty_alt;
	private string $my_darc_dok;
	private ?DateTime $dcl_qslrdate;
	private string $dcl_qsl_rcvd;
	private ?DateTime $dcl_qslsdate;
	private string $dcl_qsl_sent;
	private string $morse_key_info;
	private string $morse_key_type;
	private string $qslmsg_rcvd;

	private string $last_modified;

	private $CI;

	/**
	 * @param array $data Does no validation, it's assumed to be a row from the database in array format
	 */
	public function __construct(array $data)
	{
		$requiredKeys = [
			'COL_PRIMARY_KEY',
			'COL_ADDRESS',
			'COL_BAND',
			'COL_BAND_RX',
			'COL_CALL',
			'COL_EMAIL',
			'COL_GRIDSQUARE',
			'COL_IOTA',
			'COL_MODE',
			'COL_MY_GRIDSQUARE',
			'COL_MY_IOTA',
			'COL_MY_SIG',
			'COL_MY_SIG_INFO',
			'COL_NAME',
			'COL_PROP_MODE',
			'COL_QSLMSG',
			'COL_QSLRDATE',
			'COL_QSLSDATE',
			'COL_QSL_RCVD',
			'COL_QSL_RCVD_VIA',
			'COL_QSL_SENT',
			'COL_QSL_SENT_VIA',
			'COL_QSL_VIA',
			'COL_RST_RCVD',
			'COL_RST_SENT',
			'COL_SAT_MODE',
			'COL_SAT_NAME',
			'COL_SIG',
			'COL_SIG_INFO',
			'COL_STATION_CALLSIGN',
			'COL_TIME_ON',
			'COL_DARC_DOK',
			'COL_MY_IOTA_ISLAND_ID',
			'COL_MY_SOTA_REF',
			'COL_MY_VUCC_GRIDS',
			'COL_SOTA_REF',
			'COL_POTA_REF',
			'COL_WWFF_REF',
			'COL_SUBMODE',
			'COL_VUCC_GRIDS',
			'COL_CQZ',
			'COL_STATE',
			'COL_COUNTRY',
			'COL_IOTA',
			'COL_OPERATOR',
			'COL_COMMENT',
			'last_modified',
		];

		foreach ($requiredKeys as $requiredKey) {
			if (!array_key_exists($requiredKey, $data)) {
				throw new DomainException("Required key $requiredKey does not exist");
			}
		}

		$this->qsoID = $data['COL_PRIMARY_KEY'];

		$this->CI =& get_instance();
		// Get Date format
		if($this->CI->session->userdata('user_date_format')) {
			// If Logged in and session exists
			$custom_date_format = $this->CI->session->userdata('user_date_format');
		} else {
			// Get Default date format from /config/wavelog.php
			$custom_date_format = $this->CI->config->item('qso_date_format');
		}
		$this->qsoDateTime = date($custom_date_format . " H:i", strtotime($data['COL_TIME_ON'] ?? '1970-01-01 00:00:00'));

		$this->de = $data['station_callsign'];
		$this->dx = $data['COL_CALL'];
		$this->continent = $data['COL_CONT'] ?? '';
		$this->region = $this->getRegionString(strtoupper($data['COL_REGION'] ?? ''));

		$this->mode = $data['COL_MODE'] ?? '';
		$this->submode = $data['COL_SUBMODE'] ?? '';
		$this->band = $data['COL_BAND'];
		$this->bandRX = $data['COL_BAND_RX'] ?? '';
		$this->frequency = $data['COL_FREQ'] ?? '';
		$this->frequencyRX = $data['COL_FREQ_RX'] ?? '';
		$this->rstR = $data['COL_RST_RCVD'] ?? '';
		$this->rstS = $data['COL_RST_SENT'] ?? '';
		$this->srx = $data['COL_SRX'] ?? '';
		$this->srxstring = $data['COL_SRX_STRING'] ?? '';
		$this->stx = $data['COL_STX'] ?? '';
		$this->stxstring = $data['COL_STX_STRING'] ?? '';
		$this->propagationMode = $data['COL_PROP_MODE'] ?? '';
		$this->satelliteMode = $data['COL_SAT_MODE'] != '' ? (strlen($data['COL_SAT_MODE']) == 2 ? (strtoupper($data['COL_SAT_MODE'][0]).'/'.strtoupper($data['COL_SAT_MODE'][1])) : strtoupper($data['COL_SAT_MODE'])) : '';
		$this->satelliteName = $data['COL_SAT_NAME'] != '' ? (isset($data['orbit']) && $data['orbit'] != '' ? $data['COL_SAT_NAME']." (".$data['orbit'].") " : $data['COL_SAT_NAME']) : '';

		$this->name = $data['COL_NAME'] ?? '';
		$this->qth = $data['COL_QTH'] ?? '';
		$this->email = $data['COL_EMAIL'] ?? '';
		$this->address = $data['COL_ADDRESS'] ?? '';

		$this->deGridsquare = $data['station_gridsquare'] ?? '';
		$this->deIOTA = $data['station_iota'] ?? '';
		$this->deSig = $data['station_sig'] ?? '';
		$this->deSigInfo = $data['station_sig_info'] ?? '';
		$this->deIOTAIslandID = $data['COL_MY_IOTA_ISLAND_ID'] ?? '';
		$this->deSOTAReference = $data['station_sota'] ?? '';
		$this->deWWFFReference = $data['station_wwff'] ?? '';

		$this->deVUCCGridsquares = $data['COL_MY_VUCC_GRIDS'] ?? '';

		$this->dxGridsquare = $data['COL_GRIDSQUARE'] ?? '';
		$this->dxSig = $data['COL_SIG'] ?? '';
		$this->dxSigInfo = $data['COL_SIG_INFO'] ?? '';
		$this->dxDARCDOK = $data['COL_DARC_DOK'] ?? '';

		$this->dxSOTAReference = $data['COL_SOTA_REF'] ?? '';
		$this->dxPOTAReference = $data['COL_POTA_REF'] ?? '';
		$this->dxWWFFReference = $data['COL_WWFF_REF'] ?? '';

		$this->dxVUCCGridsquares = $data['COL_VUCC_GRIDS'] ?? '';

		$this->QSLMsg = $data['COL_QSLMSG'] ?? '';

		$this->QSLReceivedDate = ($data['COL_QSLRDATE'] === null) ? null : DateTime::createFromFormat("Y-m-d H:i:s", $data['COL_QSLRDATE'], new DateTimeZone('UTC'));
		$this->QSLReceived = ($data['COL_QSL_RCVD'] === null) ? '' : $data['COL_QSL_RCVD'];
		$this->QSLReceivedVia = ($data['COL_QSL_RCVD_VIA'] === null) ? '' : $data['COL_QSL_RCVD_VIA'];
		$this->QSLSentDate = ($data['COL_QSLSDATE'] === null) ? null : DateTime::createFromFormat("Y-m-d H:i:s", $data['COL_QSLSDATE'], new DateTimeZone('UTC'));
		$this->QSLSent = ($data['COL_QSL_SENT'] === null) ? '' : $data['COL_QSL_SENT'];
		$this->QSLSentVia = ($data['COL_QSL_SENT_VIA'] === null) ? '' : $data['COL_QSL_SENT_VIA'];
		$this->QSLVia = ($data['COL_QSL_VIA'] === null) ? '' : $data['COL_QSL_VIA'];

		$this->cnty_alt = $data['COL_CNTY_ALT'] ?? '';
		$this->my_cnty_alt = $data['COL_MY_CNTY_ALT'] ?? '';
		$this->my_darc_dok = $data['COL_MY_DARC_DOK'] ?? '';
		$this->dcl_qsl_rcvd = $data['COL_DCL_QSL_RCVD'] ?? '';
		$this->dcl_qslrdate = ($data['COL_DCL_QSLRDATE'] === null) ? null : DateTime::createFromFormat("Y-m-d H:i:s", $data['COL_DCL_QSLRDATE'], new DateTimeZone('UTC'));
		$this->dcl_qsl_sent = $data['COL_DCL_QSL_SENT'] ?? '';
		$this->dcl_qslsdate = ($data['COL_DCL_QSLSDATE'] === null) ? null : DateTime::createFromFormat("Y-m-d H:i:s", $data['COL_DCL_QSLSDATE'], new DateTimeZone('UTC'));
		$this->morse_key_info = $data['COL_KEY_INFO'] ?? '';
		$this->morse_key_type = $data['COL_MORSE_KEY_TYPE'] ?? '';
		$this->qslmsg_rcvd = $data['COL_QSLMSG_RCVD'] ?? '';

		$this->qsl = $this->getQslString($data, $custom_date_format);
		$this->lotw = $this->getLotwString($data, $custom_date_format);
		$this->eqsl = $this->getEqslString($data, $custom_date_format);
		$this->clublog = $this->getClublogString($data, $custom_date_format);
		$this->qrz = $this->getQrzString($data, $custom_date_format);
		$this->dcl = $this->getDclString($data, $custom_date_format);

		$this->cqzone = $data['COL_CQZ'] === null ? '' : $this->getCqLink($data['COL_CQZ']);
		$this->ituzone = $data['COL_ITUZ'] === null ? '' : $this->getItuLink($data['COL_ITUZ']);
		$this->state = ($data['COL_STATE'] === null) ? '' :$data['COL_STATE'];
		$this->county = ($data['COL_CNTY'] === null) ? '' :$data['COL_CNTY'];
		if ($data['adif'] == '0') {
			$this->dxcc = '<a href="javascript:spawnLookupModal('.$data['COL_DXCC'].',\'dxcc\');">'.$data['dxccname'].'</a>';
		} else {
			$this->dxcc = (($data['dxccname'] ?? null) === null) ? '- NONE -' : '<a href="javascript:spawnLookupModal('.$data['COL_DXCC'].',\'dxcc\');">'.ucwords(strtolower($data['dxccname']), "- (/").'</a>';
		}
		$this->dxccid = $data['adif'] ?? '0';
		$this->iota = ($data['COL_IOTA'] === null) ? '' : $this->getIotaLink($data['COL_IOTA']);
		if (array_key_exists('end', $data)) {
			$this->end = ($data['end'] === null) ? null : DateTime::createFromFormat("Y-m-d", $data['end'], new DateTimeZone('UTC'));
		} else {
			$this->end = null;
		}
		$this->callsign = (($data['callsign'] ?? null) === null) ? '' : $data['callsign'];
		$this->lastupload = (($data['lastupload'] ?? null) === null) ? '' : date($custom_date_format . " H:i", strtotime($data['lastupload'] ?? null));
		$this->lotw_hint = $this->getLotwHint($data['lastupload'] ?? null);
		$this->operator = ($data['COL_OPERATOR'] === null) ? '' :$data['COL_OPERATOR'];

		$this->comment = $data['COL_COMMENT'] ?? '';

		$this->orbit = $data['orbit'] ?? '';

		$this->contest = $data['contestname'] ?? '';

		$this->profilename = $data['station_profile_name'] ?? '';

		$this->stationpower = $data['COL_TX_PWR'] ?? '';
		$this->distance = $data['COL_DISTANCE'];
		$this->antennaazimuth = $data['COL_ANT_AZ'] ?? '';
		$this->antennaelevation = $data['COL_ANT_EL'] ?? '';

		$this->last_modified = date($custom_date_format . " H:i:s", strtotime($data['qso_last_modified'] ?? ''));

		if ($this->CI->session->userdata('user_measurement_base') == NULL) {
			$measurement_base = $this->CI->config->item('measurement_base');
		} else {
			$measurement_base = $this->CI->session->userdata('user_measurement_base');
		}

		$this->measurement_base = $measurement_base;

		$this->duration = $this->calculateDuration($data['COL_TIME_ON'], $data['COL_TIME_OFF']);

	}

	function calculateDuration($start, $end) {
		if ($start == null || $end == null) {
			return '';
		}
		$start = new DateTime($start);
		$end = new DateTime($end);
		$interval = $end->diff($start);
		return $interval->format('%H:%I:%S');
	}
	/**
	 * @return string
	 */
	function getContinentLink(): string
	{
		if ($this->continent == '') return '';

		$validContinents = ['AF', 'EU', 'AS', 'SA', 'NA', 'OC', 'AN'];

		if (in_array($this->continent, $validContinents, true)) {
			return '<a href="javascript:spawnLookupModal(\''.strtolower($this->continent).'\',\'continent\');">'.$this->continent.'</a>';
		}
		return '<span class="bg-danger">Invalid continent</span> ' . $this->continent;
	}

	/**
	 * @return string
	 */
	function getCqLink($cqz): string
	{
		if ($cqz > '0' && $cqz <= '40') {
			return '<a href="javascript:spawnLookupModal('.$cqz.',\'cq\');">'.$cqz.'</a>';
		}
		return $cqz;
	}

	/**
	 * @return string
	 */
	function getItuLink($ituz): string
	{
		if ($ituz > '0' && $ituz <= '90') {
			return '<a href="javascript:spawnLookupModal('.$ituz.',\'itu\');">'.$ituz.'</a>';
		}
		return $ituz;
	}

	/**
	 * @return string
	 */
	function getRegionString($region): string
	{
		switch($region) {
			case 'AI':
				return 'African Italy ('.$region.')';
				break;
			case 'BI':
				return 'Bear Island ('.$region.')';
				break;
			case 'ET':
				return 'European Turkey ('.$region.')';
				break;
			case 'IV':
				return 'ITU Vienna ('.$region.')';
				break;
			case 'KO':
				return 'Kosovo ('.$region.')';
				break;
			case 'SY':
				return 'Sicily ('.$region.')';
				break;
			case 'SI':
				return 'Shetland Islands ('.$region.')';
				break;
			default:
				return ($region ?? '');
				break;
			}
	}

	/**
	 * @return string
	 */
	function getLotwHint($lastupload): string
	{
		$lotw_hint = '';
		if ($lastupload !== null) {
			$diff = time();
			$diff = (time() - strtotime($lastupload)) / 86400;
			if ($diff > 365) {
				$lotw_hint = ' lotw_info_red';
			} elseif ($diff > 30) {
				$lotw_hint = ' lotw_info_orange';
			} elseif ($diff > 7) {
				$lotw_hint = ' lotw_info_yellow';
			}
		}
		return $lotw_hint;
	}

	/**
	 * @return string
	 */
	function getQSLString($data, $custom_date_format): string
	{
		$qslstring = '<span ';

		if ($data['COL_QSL_SENT'] != "N") {
			switch ($data['COL_QSL_SENT']) {
			case "Y":
				$qslstring .= "class=\"qsl-green\" data-bs-toggle=\"tooltip\" title=\"".__("Sent");
				break;
			case "Q":
				$qslstring .= "class=\"qsl-yellow\" data-bs-toggle=\"tooltip\" title=\"".__("Queued");
				break;
			case "R":
				$qslstring .= "class=\"qsl-yellow\" data-bs-toggle=\"tooltip\" title=\"".__("Requested");
				break;
			case "I":
				$qslstring .= "class=\"qsl-grey\" data-bs-toggle=\"tooltip\" title=\"".__("Invalid (Ignore)");
				break;
			default:
			$qslstring .= "class=\"qsl-red";
				break;
			}
			if ($data['COL_QSLSDATE'] != null) {
				$timestamp = strtotime($data['COL_QSLSDATE']);
				$qslstring .= " "  .($timestamp != '' ? date($custom_date_format, $timestamp) : '');
			}
		} else {
			$qslstring .= "class=\"qsl-red";
		}

		if ($data['COL_QSL_SENT_VIA'] != "") {
			switch ($data['COL_QSL_SENT_VIA']) {
				case "B":
					$qslstring .= " (" . __("Bureau") . ")";
					break;
				case "D":
				$qslstring .= " (".__("Direct").")";
					break;
				case "M":
				$qslstring .= " (".__("Via").": ".($data['COL_QSL_VIA'] !="" ? $data['COL_QSL_VIA']:"n/a").")";
					break;
				case "E":
				$qslstring .= " (".__("Electronic").")";
					break;
			}
		}

			$qslstring .= '">&#9650;</span><span ';

			if ($data['COL_QSL_RCVD'] != "N") {
				switch ($data['COL_QSL_RCVD']) {
					case "Y":
						$qslstring .= "class=\"qsl-green\" data-bs-toggle=\"tooltip\" title=\"".__("Received");
					break;
					case "Q":
						$qslstring .= "class=\"qsl-yellow\" data-bs-toggle=\"tooltip\" title=\"".__("Queued");
					break;
					case "R":
						$qslstring .= "class=\"qsl-yellow\" data-bs-toggle=\"tooltip\" title=\"".__("Requested");
					break;
					case "I":
						$qslstring .= "class=\"qsl-grey\" data-bs-toggle=\"tooltip\" title=\"".__("Invalid (Ignore)");
					break;
					default:
					$qslstring .= "class=\"qsl-red";
					break;
				}
				if ($data['COL_QSLRDATE'] != null) {
					$timestamp = strtotime($data['COL_QSLRDATE']);
					$qslstring .= " "  .($timestamp != '' ? date($custom_date_format, $timestamp) : '');
				}
			} else {
			$qslstring .= "class=\"qsl-red"; }
			if ($data['COL_QSL_RCVD_VIA'] != "") {
				switch ($data['COL_QSL_RCVD_VIA']) {
					case "B":
					$qslstring .= " (".__("Bureau").")";
						break;
					case "D":
					$qslstring .= " (".__("Direct").")";
						break;
					case "M":
					$qslstring .= " (Manager)";
						break;
					case "E":
					$qslstring .= " (".__("Electronic").")";
						break;
				}
			}
			$qslstring .= '">&#9660;</span>';
			if ($data['qslcount'] ?? null != null) {
				$qslstring .= ' <a href="javascript:displayQsl('.$data['COL_PRIMARY_KEY'].');"><i class="fa fa-id-card"></i></a>';
			}
		return $qslstring;
	}

	/**
	 * @return string
	 */
	function getLotwString($data, $custom_date_format): string
	{
		$lotwstring = '<span ';

		$timestamp = '';
		if ($data['COL_LOTW_QSLSDATE'] != null) {
			$timestamp = date($custom_date_format, strtotime($data['COL_LOTW_QSLSDATE']));
		}
		if ($data['COL_LOTW_QSL_SENT'] == "Y") {
			$lotwstring .= "title=\"" . __("Sent");
			$lotwstring .= $timestamp != '' ? " ".$timestamp : '';
			$lotwstring .= "\" data-bs-toggle=\"tooltip\" class=\"lotw-green\"";
		} elseif ($data['COL_LOTW_QSL_SENT'] == "I") {
			$lotwstring .= "title=\"" . __("Invalid (Ignore)");
			$lotwstring .= $timestamp != '' ? " ".$timestamp : '';
			$lotwstring .= "\" data-bs-toggle=\"tooltip\" class=\"lotw-grey\"";
		} elseif ($data['COL_LOTW_QSL_SENT'] == "Q") {
			$lotwstring .= "title=\"" . __("Queued");
			$lotwstring .= $timestamp != '' ? " ".$timestamp : '';
			$lotwstring .= "\" data-bs-toggle=\"tooltip\" class=\"lotw-yellow\"";
		} elseif ($data['COL_LOTW_QSL_SENT'] == "R") {
			$lotwstring .= "title=\"" . __("Requested");
			$lotwstring .= $timestamp != '' ? " ".$timestamp : '';
			$lotwstring .= "\" data-bs-toggle=\"tooltip\" class=\"lotw-yellow\"";
		} else {
			$lotwstring .= "class=\"lotw-red\"";
		}

		$lotwstring .= '>&#9650;</span>';
		$lotwstring .= '<span ';

		$timestamp = '';
		if ($data['COL_LOTW_QSLRDATE'] != null) {
			$timestamp = date($custom_date_format, strtotime($data['COL_LOTW_QSLRDATE']));
		}
		if ($data['COL_LOTW_QSL_RCVD'] == "Y") {
			$lotwstring .= "title=\"". __("Received");
			$lotwstring .= $timestamp != '' ? " ".$timestamp : '';
			$lotwstring .= "\" data-bs-toggle=\"tooltip\" class=\"lotw-green\"";
		} elseif ($data['COL_LOTW_QSL_RCVD'] == "I") {
			$lotwstring .= "title=\"" . __("Invalid (Ignore)");
			$lotwstring .= $timestamp != '' ? " ".$timestamp : '';
			$lotwstring .= "\" data-bs-toggle=\"tooltip\" class=\"lotw-grey\"";
		} elseif ($data['COL_LOTW_QSL_RCVD'] == "R") {
			$lotwstring .= "title=\"" . __("Requested");
			$lotwstring .= $timestamp != '' ? " ".$timestamp : '';
			$lotwstring .= "\" data-bs-toggle=\"tooltip\" class=\"lotw-yellow\"";
		} else {
			$lotwstring .= "class=\"lotw-red\"";
		}

		$lotwstring .= '>&#9660;</span>';

		return $lotwstring;
	}

	/**
	 * @return string
	 */
	function getClublogString($data, $custom_date_format): string {
		$clublogstring = '<span ';

		if ($data['COL_CLUBLOG_QSO_UPLOAD_STATUS'] == "Y") {
			$clublogstring .= "title=\"".__("Sent");

			if ($data['COL_CLUBLOG_QSO_UPLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_CLUBLOG_QSO_UPLOAD_DATE']);
				$clublogstring .=  " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
			}

			$clublogstring .= "\" data-bs-toggle=\"tooltip\"";
		} elseif ($data['COL_CLUBLOG_QSO_UPLOAD_STATUS'] == "I") {
			$clublogstring .= "title=\"".__("Invalid (Ignore)");

			if ($data['COL_CLUBLOG_QSO_UPLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_CLUBLOG_QSO_UPLOAD_DATE']);
				$clublogstring .= " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
			}
			$clublogstring .= "\" data-bs-toggle=\"tooltip\"";
		} elseif ($data['COL_CLUBLOG_QSO_UPLOAD_STATUS'] == "Q") {
			$clublogstring .= "title=\"".__("Queued");

			if ($data['COL_CLUBLOG_QSO_UPLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_CLUBLOG_QSO_UPLOAD_DATE']);
				$clublogstring .= " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
			}
			$clublogstring .= "\" data-bs-toggle=\"tooltip\"";
		} elseif ($data['COL_CLUBLOG_QSO_UPLOAD_STATUS'] == "M") {
			$clublogstring .= "title=\"".__("Modified");

			if ($data['COL_CLUBLOG_QSO_UPLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_CLUBLOG_QSO_UPLOAD_DATE']);
				$clublogstring .=  "<br />(".__("last sent")." ".($timestamp!=''?date($custom_date_format, $timestamp):'').")";
			}

			$clublogstring .= "\" data-bs-toggle=\"tooltip\" data-bs-html=\"true\"";
		}

		$clublogstring .= ' class="clublog-';
		if ($data['COL_CLUBLOG_QSO_UPLOAD_STATUS'] =='Y') {
			$clublogstring .= 'green';
		} elseif ($data['COL_CLUBLOG_QSO_UPLOAD_STATUS'] == 'I') {
			$clublogstring .= 'grey';
		} elseif ($data['COL_CLUBLOG_QSO_UPLOAD_STATUS'] == 'Q') {
			$clublogstring .= 'yellow';
		} elseif ($data['COL_CLUBLOG_QSO_UPLOAD_STATUS'] == 'M') {
			$clublogstring .= 'yellow';
		} else {
			$clublogstring .= 'red';
		}
		$clublogstring .= '">&#9650;</span><span ';

		if ($data['COL_CLUBLOG_QSO_DOWNLOAD_STATUS'] == "Y") {
			$clublogstring .= "title=\"".__("Received");

			if ($data['COL_CLUBLOG_QSO_DOWNLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_CLUBLOG_QSO_DOWNLOAD_DATE']);
				$clublogstring .= " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
			}
			$clublogstring .= "\" data-bs-toggle=\"tooltip\"";
		} elseif ($data['COL_CLUBLOG_QSO_DOWNLOAD_STATUS'] == "I") {
			$clublogstring .= "title=\"".__("Invalid (Ignore)");

			if ($data['COL_CLUBLOG_QSO_DOWNLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_CLUBLOG_QSO_DOWNLOAD_DATE']);
				$clublogstring .= " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
			}
			$clublogstring .= "\" data-bs-toggle=\"tooltip\"";
		}

		$clublogstring .= ' class="clublog-';
		if ($data['COL_CLUBLOG_QSO_DOWNLOAD_STATUS'] =='Y') {
			$clublogstring .= 'green';
		} elseif ($data['COL_CLUBLOG_QSO_DOWNLOAD_STATUS'] == 'I') {
			$clublogstring .= 'grey';
		} else {
			$clublogstring .= 'red';
		}
		$clublogstring .= '">&#9660;</span>';

		return $clublogstring;
	}

	/**
	 * @return string
	 */
	function getDclString($data, $custom_date_format): string {
		$dclstring = '<span ';

		if ($data['COL_DCL_QSL_SENT'] != "N") {
			switch ($data['COL_DCL_QSL_SENT']) {
			case "Y":
				$dclstring .= "class=\"qrz-green\" data-bs-toggle=\"tooltip\" title=\"".__("Sent");
				break;
			case "Q":
				$dclstring .= "class=\"qrz-yellow\" data-bs-toggle=\"tooltip\" title=\"".__("Queued");
				break;
			case "R":
				$dclstring .= "class=\"qrz-yellow\" data-bs-toggle=\"tooltip\" title=\"".__("Requested");
				break;
			case "I":
				$dclstring .= "class=\"qrz-grey\" data-bs-toggle=\"tooltip\" title=\"".__("Invalid (Ignore)");
				break;
			default:
			$dclstring .= "class=\"qrz-red";
				break;
			}
			if ($data['COL_DCL_QSLSDATE'] != null) {
				$timestamp = strtotime($data['COL_DCL_QSLSDATE']);
				$dclstring .= " "  .($timestamp != '' ? date($custom_date_format, $timestamp) : '');
			}
		} else {
			$dclstring .= "class=\"qrz-red";
		}
			$dclstring .= '">&#9650;</span><span ';

			if ($data['COL_DCL_QSL_RCVD'] != "N") {
				switch ($data['COL_DCL_QSL_RCVD']) {
					case "Y":
						$dclstring .= "class=\"qrz-green\" data-bs-toggle=\"tooltip\" title=\"".__("Received");
					break;
					case "Q":
						$dclstring .= "class=\"qrz-yellow\" data-bs-toggle=\"tooltip\" title=\"".__("Queued");
					break;
					case "R":
						$dclstring .= "class=\"qrz-yellow\" data-bs-toggle=\"tooltip\" title=\"".__("Requested");
					break;
					case "I":
						$dclstring .= "class=\"qrz-grey\" data-bs-toggle=\"tooltip\" title=\"".__("Invalid (Ignore)");
					break;
					default:
					$dclstring .= "class=\"qrz-red";
					break;
				}
				if ($data['COL_DCL_QSLRDATE'] != null) {
					$timestamp = strtotime($data['COL_DCL_QSLRDATE']);
					$dclstring .= " "  .($timestamp != '' ? date($custom_date_format, $timestamp) : '');
				}
			} else {
				$dclstring .= "class=\"qrz-red";
			}
			$dclstring .= '">&#9660;</span>';
		return $dclstring;
	}

	function getQrzString($data, $custom_date_format): string {
		$qrzstring = '<span ';

		if ($data['COL_QRZCOM_QSO_UPLOAD_STATUS'] == "Y") {
			$qrzstring .= "title=\"".__("Sent");

			if ($data['COL_QRZCOM_QSO_UPLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_QRZCOM_QSO_UPLOAD_DATE']);
				$qrzstring .=  " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
			}

			$qrzstring .= "\" data-bs-toggle=\"tooltip\"";
		} elseif ($data['COL_QRZCOM_QSO_UPLOAD_STATUS'] == "I") {
			$qrzstring .= "title=\"".__("Invalid (Ignore)");

			if ($data['COL_QRZCOM_QSO_UPLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_QRZCOM_QSO_UPLOAD_DATE']);
				$qrzstring .= " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
			}
			$qrzstring .= "\" data-bs-toggle=\"tooltip\"";
		} elseif ($data['COL_QRZCOM_QSO_UPLOAD_STATUS'] == "Q") {
			$qrzstring .= "title=\"".__("Queued");

			if ($data['COL_QRZCOM_QSO_UPLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_QRZCOM_QSO_UPLOAD_DATE']);
				$qrzstring .= " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
			}
			$qrzstring .= "\" data-bs-toggle=\"tooltip\"";
		} elseif ($data['COL_QRZCOM_QSO_UPLOAD_STATUS'] == "M") {
			$qrzstring .= "title=\"".__("Modified");

			if ($data['COL_QRZCOM_QSO_UPLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_QRZCOM_QSO_UPLOAD_DATE']);
				$qrzstring .=  "<br />(".__("last sent")." ".($timestamp!=''?date($custom_date_format, $timestamp):'').")";
			}

			$qrzstring .= "\" data-bs-toggle=\"tooltip\" data-bs-html=\"true\"";
		}

		$qrzstring .= ' class="qrz-';
		if ($data['COL_QRZCOM_QSO_UPLOAD_STATUS'] =='Y') {
			$qrzstring .= 'green';
		} elseif ($data['COL_QRZCOM_QSO_UPLOAD_STATUS'] == 'I') {
			$qrzstring .= 'grey';
		} elseif ($data['COL_QRZCOM_QSO_UPLOAD_STATUS'] == 'Q') {
			$qrzstring .= 'yellow';
		} elseif ($data['COL_QRZCOM_QSO_UPLOAD_STATUS'] == 'M') {
			$qrzstring .= 'yellow';
		} else {
			$qrzstring .= 'red';
		}
		$qrzstring .= '">&#9650;</span><span ';

		if ($data['COL_QRZCOM_QSO_DOWNLOAD_STATUS'] == "Y") {
			$qrzstring .= "title=\"".__("Received");

			if ($data['COL_QRZCOM_QSO_DOWNLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_QRZCOM_QSO_DOWNLOAD_DATE']);
				$qrzstring .= " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
			}
			$qrzstring .= "\" data-bs-toggle=\"tooltip\"";
		} elseif ($data['COL_QRZCOM_QSO_DOWNLOAD_STATUS'] == "I") {
			$qrzstring .= "title=\"".__("Invalid (Ignore)");

			if ($data['COL_QRZCOM_QSO_DOWNLOAD_DATE'] != null) {
				$timestamp = strtotime($data['COL_QRZCOM_QSO_DOWNLOAD_DATE']);
				$qrzstring .= " ".($timestamp!=''?date($custom_date_format, $timestamp):'');
			}
			$qrzstring .= "\" data-bs-toggle=\"tooltip\"";
		}

		$qrzstring .= ' class="qrz-';
		if ($data['COL_QRZCOM_QSO_DOWNLOAD_STATUS'] =='Y') {
			$qrzstring .= 'green';
		} elseif ($data['COL_QRZCOM_QSO_DOWNLOAD_STATUS'] == 'I') {
			$qrzstring .= 'grey';
		} else {
			$qrzstring .= 'red';
		}
		$qrzstring .= '">&#9660;</span>';

		return $qrzstring;
	}

	function getEqslString($data, $custom_date_format): string
	{
		$eqslstring = '<span ';

		$timestamp = '';
		if ($data['COL_EQSL_QSLSDATE'] != null) {
			$timestamp = date($custom_date_format, strtotime($data['COL_EQSL_QSLSDATE']));
		}
		if ($data['COL_EQSL_QSL_SENT'] == "Y") {
			$eqslstring .= "title=\"" . __("Sent");
			$eqslstring .= $timestamp != '' ? " ".$timestamp : '';
			$eqslstring .= "\" data-bs-toggle=\"tooltip\" class=\"eqsl-green\"";
		} elseif ($data['COL_EQSL_QSL_SENT'] == "I") {
			$eqslstring .= "title=\"" . __("Invalid (Ignore)");
			$eqslstring .= $timestamp != '' ? " ".$timestamp : '';
			$eqslstring .= "\" data-bs-toggle=\"tooltip\" class=\"eqsl-grey\"";
		} elseif ($data['COL_EQSL_QSL_SENT'] == "Q") {
			$eqslstring .= "title=\"" . __("Queued");
			$eqslstring .= $timestamp != '' ? " ".$timestamp : '';
			$eqslstring .= "\" data-bs-toggle=\"tooltip\" class=\"eqsl-yellow\"";
		} elseif ($data['COL_EQSL_QSL_SENT'] == "R") {
			$eqslstring .= "title=\"" . __("Requested");
			$eqslstring .= $timestamp != '' ? " ".$timestamp : '';
			$eqslstring .= "\" data-bs-toggle=\"tooltip\" class=\"eqsl-yellow\"";
		} else {
			$eqslstring .= "class=\"eqsl-red\"";
		}

		$eqslstring .= '>&#9650;</span>';

		$eqslstring .= '<a ';

		$timestamp = '';
		if ($data['COL_EQSL_QSLRDATE'] != null) {
			$timestamp = date($custom_date_format, strtotime($data['COL_EQSL_QSLRDATE']));
		}
		if ($data['COL_EQSL_QSL_RCVD'] == "Y") {
			$eqslstring .= "title=\"". __("Received");
			$eqslstring .= $timestamp != '' ? " ".$timestamp : '';
			$eqslstring .= "\" data-bs-toggle=\"tooltip\" class=\"eqsl-green\" ";
			$eqslstring .= "href=\"".site_url("eqsl/image/".$data['COL_PRIMARY_KEY'])."\"  data-fancybox=\"images\" data-width=\"528\" data-height=\"336\"";
		} elseif ($data['COL_EQSL_QSL_RCVD'] == "I") {
			$eqslstring .= "title=\"" . __("Invalid (Ignore)");
			$eqslstring .= $timestamp != '' ? " ".$timestamp : '';
			$eqslstring .= "\" data-bs-toggle=\"tooltip\" class=\"eqsl-grey\"";
		} elseif ($data['COL_EQSL_QSL_RCVD'] == "R") {
			$eqslstring .= "title=\"" . __("Requested");
			$eqslstring .= $timestamp != '' ? " ".$timestamp : '';
			$eqslstring .= "\" data-bs-toggle=\"tooltip\" class=\"eqsl-yellow\"";
		} else {
			$eqslstring .= "class=\"eqsl-red\"";
		}

		$eqslstring .= '>&#9660;</a>';

		return $eqslstring;
	}

	/**
	 * @return string
	 */
	public function getQsoID(): string
	{
		return $this->qsoID;
	}

	/**
	 * @return DateTime
	 */
	public function getQsoDateTime(): string
	{
		return $this->qsoDateTime;
	}

	/**
	 * @return string
	 */
	public function getDe(): string
	{
		return $this->de;
	}

	/**
	 * @return string
	 */
	public function getDx(): string
	{
		return $this->dx;
	}

	/**
	 * @return string
	 */
	public function getMode(): string
	{
		return $this->mode;
	}

	/**
	 * @return string
	 */
	public function getSubmode(): string
	{
		return $this->submode;
	}

	/**
	 * @return string
	 */
	public function getRstR(): string
	{
		$returnstring = '';
		if ($this->srx != '' || $this->srxstring != '') {
			$returnstring = '<span data-bs-toggle="tooltip" title="'. $this->contest .'" class="badge text-bg-light">';

			if ($this->srx != '') {
				$returnstring .= sprintf("%03d", $this->srx);
			}

			if ($this->srxstring != '') {
				$returnstring .= $this->srxstring;
			}

			$returnstring .= '</span>';
		}

		return $this->rstR . $returnstring;
	}

	/**
	 * @return string
	 */
	public function getRstS(): string
	{
		$returnstring = '';
		if ($this->stx != '' || $this->stxstring != '') {
			$returnstring = '<span data-bs-toggle="tooltip" title="'. $this->contest .'" class="badge text-bg-light">';

			if ($this->stx != '') {
				$returnstring .= sprintf("%03d", $this->stx);
			}

			if ($this->stxstring != '') {
				$returnstring .= $this->stxstring;
			}

			$returnstring .= '</span>';
		}

		return $this->rstS . $returnstring;
	}

	/**
	 * @return string
	 */
	public function getPropagationMode(): string
	{
		return $this->propagationMode;
	}

	/**
	 * @return string
	 */
	public function getSatelliteMode(): string
	{
		return $this->satelliteMode;
	}

	/**
	 * @return string
	 */
	public function getSatelliteName(): string
	{
		return $this->satelliteName;
	}

	/**
	 * @return string
	 */
	public function getName(): string
	{
		return $this->name;
	}

	/**
	 * @return string
	 */
	public function getEmail(): string
	{
		return $this->email;
	}

	/**
	 * @return string
	 */
	public function getAddress(): string
	{
		return $this->address;
	}

	/**
	 * @return string
	 */
	public function getDeGridsquare(): string
	{
		return $this->deGridsquare;
	}

	/**
	 * @return string
	 */
	public function getDeIOTA(): string
	{
		return $this->deIOTA;
	}

	/**
	 * @return string
	 */
	public function getDeSig(): string
	{
		return $this->deSig;
	}

	/**
	 * @return string
	 */
	public function getDeSigInfo(): string
	{
		return $this->deSigInfo;
	}

	/**
	 * @return string
	 */
	public function getDeIOTAIslandID(): string
	{
		return $this->deIOTAIslandID;
	}

	/**
	 * @return string
	 */
	public function getDeSOTAReference(): string
	{
		return $this->deSOTAReference;
	}

	/**
	 * @return string[]
	 */
	public function getDeVUCCGridsquares(): string
	{
		return $this->deVUCCGridsquares;
	}

	/**
	 * @return string
	 */
	public function getDxGridsquare(): string
	{
		$returnstring = '';
		if ($this->dxVUCCGridsquares !== '') {
			$returnstring = '<span id="dxgrid">' . $this->dxVUCCGridsquares . '</span> ' . $this->getQrbLink($this->deGridsquare, $this->dxVUCCGridsquares, $this->dxGridsquare);
		} else if ($this->dxGridsquare !== '') {
			$returnstring = '<span id="dxgrid">' . $this->dxGridsquare . '</span> ' . $this->getQrbLink($this->deGridsquare, $this->dxVUCCGridsquares, $this->dxGridsquare);
		}
		return $returnstring;
	}

	/**
	 * @return string
	 */
	public function getDxSig(): string
	{
		return $this->dxSig;
	}

	/**
	 * @return string
	 */
	public function getDxSigInfo(): string
	{
		return $this->dxSigInfo;
	}

	/**
	 * @return string
	 */
	public function getDxSOTAReference(): string
	{
		return $this->dxSOTAReference;
	}

	/**
	 * @return string
	 */
	public function getDxPOTAReference(): string
	{
		return $this->dxPOTAReference;
	}

	/**
	 * @return string
	 */
	public function getWWFFReference(): string
	{
		return $this->dxWWFFReference;
	}

	/**
	 * @return string[]
	 */
	public function getDxVUCCGridsquares(): string
	{
		return $this->dxVUCCGridsquares;
	}

	/**
	 * @return string
	 */
	public function getQSLMsg(): string
	{
		return $this->QSLMsg;
	}

	/**
	 * @return ?DateTime
	 */
	public function getQSLReceivedDate(): ?DateTime
	{
		return $this->QSLReceivedDate;
	}

	/**
	 * @return string
	 */
	public function getQSLReceived(): string
	{
		return $this->QSLReceived;
	}

	/**
	 * @return string
	 */
	public function getQSLReceivedVia(): string
	{
		return $this->QSLReceivedVia;
	}

	/**
	 * @return ?DateTime
	 */
	public function getQSLSentDate(): ?DateTime
	{
		return $this->QSLSentDate;
	}

	/**
	 * @return string
	 */
	public function getQSLSent(): string
	{
		return $this->QSLSent;
	}

	/**
	 * @return string
	 */
	public function getQSLSentVia(): string
	{
		return $this->QSLSentVia;
	}

	/**
	 * @return string
	 */
	public function getqsl(): string
	{
		return $this->qsl;
	}

	/**
	 * @return string
	 */
	public function getlotw(): string
	{
		return $this->lotw;
	}

	/**
	 * @return string
	 */
	public function getclublog(): string
	{
		return $this->clublog;
	}

	/**
	 * @return string
	 */
	public function getdcl(): string
	{
		return $this->dcl;
	}

	/**
	 * @return string
	 */
	public function getqrz(): string
	{
		return $this->qrz;
	}

	/**
	 * @return string
	 */
	public function geteqsl(): string
	{
		return $this->eqsl;
	}

	/**
	 * @return string
	 */
	public function getQSLVia(): string
	{
		return $this->QSLVia;
	}

	public function getQSLMsgRcvd(): string
	{
		return $this->qslmsg_rcvd;;
	}

	public function getDXCC(): string
	{
		return '<span id="dxcc">' . $this->dxcc . '</span>';
	}

	public function getDXCCId(): string
	{
		return $this->dxccid;
	}

	public function getCqzone(): string
	{
		return '<span id="cqzone">' . $this->cqzone . '</span>';
	}

	public function getItuzone(): string
	{
		return '<span id="ituzone">' . $this->ituzone . '</span>';
	}

	public function getState(): string
	{
		return '<span id="state">' . $this->state . '</span>';
	}

	public function getIOTA(): string
	{
		return '<span id="iota">' . $this->iota . '</span>';
	}

	public function getOperator(): string
	{
		return '<span id="operator">' . $this->operator . '</span>';
	}

	public function toArray(): array
	{
		return [
			'qsoID' => $this->qsoID,
			'qsoDateTime' => $this->qsoDateTime,
			'de' => $this->de,
			'dx' => $this->getDx(),
			'mode' => $this->getFormattedMode(),
			'rstS' => $this->getRstS(),
			'rstR' => $this->getRstR(),
			'band' => $this->getFormattedBand(),
			'deRefs' => $this->getFormattedDeRefs(),
			'qslVia' => $this->QSLVia,
			'qsl' => $this->getqsl(),
			'lotw' => $this->getlotw(),
			'eqsl' => $this->geteqsl(),
			'clublog' => $this->getclublog(),
			'qrz' => $this->getqrz(),
			'dcl' => $this->getdcl(),
			'qslMessage' => $this->getQSLMsg(),
			'qslMessageR' => $this->getQSLMsgRcvd(),
			'name' => $this->getName(),
			'dxcc' => $this->getDXCC(),
			'dxccid' => $this->getDXCCId(),
			'state' => $this->getState(),
			'pota' => $this->getFormattedPota(),
			'operator' => $this->getOperator(),
			'cqzone' => $this->getCqzone(),
			'ituzone' => $this->getItuzone(),
			'iota' => $this->getIOTA(),
			'end' => $this->end === null ? null : $this->end->format("Y-m-d"),
			'callsign' => $this->callsign,
			'lastupload' => $this->lastupload,
			'lotw_hint' => $this->lotw_hint,
			'comment' => $this->comment,
			'orbit' => $this->orbit,
			'propagation' => $this->getPropagationMode(),
			'contest' => $this->contest,
			'gridsquare' => $this->getDxGridsquare(),
			'sota' => $this->getFormattedSotaLink(),
			'dok' => $this->getFormattedDok(),
			'wwff' => $this->getFormattedWwff(),
			'sig' => $this->getFormattedSig(),
			'sig_info' => $this->dxSigInfo,
			'continent' => $this->getContinentLink(),
			'profilename' => $this->profilename,
			'stationpower' => empty($this->stationpower) ? null : $this->stationpower.' W',
			'distance' => $this->getFormattedDistance(),
			'region' => $this->region,
			'antennaelevation' => $this->antennaelevation == null ? null : $this->antennaelevation.'°',
			'antennaazimuth' => $this->antennaazimuth == null ? null : $this->antennaazimuth.'°',
			'county' => $this->county,
			'qth' => $this->qth,
			'frequency' => $this->getFormattedFrequency(),
			'last_modified' => $this->last_modified,
			'duration' => $this->duration
		];
	}

	private function getFormattedDistance(): string
	{
		if ($this->distance === null) return '';

		$distanceValue = floatval($this->distance); // Convert string to float

		switch ($this->measurement_base) {
			case 'M':
				$unit = "mi";
				break;
			case 'K':
				$unit = "km";
				break;
			case 'N':
				$unit = "nmi";
				break;
			default:
				$unit = "km";
		}

		if ($unit == 'mi') {
			$distanceValue = round($distanceValue * 0.621371, 1);
		}
		if ($unit == 'nmi') {
			$distanceValue = round($distanceValue * 0.539957, 1);
		}

		return $distanceValue . ' ' . $unit;
	}

	private function getFormattedMyDok(): string
	{
		$dokstring = '';
		if (preg_match('/^[A-Y]\d{2}$/', $this->MY_DARC_DOK)) {
			$dokstring = '<a href="https://www.darc.de/' .  $this->MY_DARC_DOK . '" target="_blank">' . $this->MY_DARC_DOK . '</a>';
		} else if (preg_match('/^DV[ABCDEFGHIKLMNOPQRSTUVWXY]$/', $this->MY_DARC_DOK)) {
			$dokstring = '<a href="https://www.darc.de/der-club/distrikte/' . strtolower(substr($this->MY_DARC_DOK, 2, 1)) . '" target="_blank">' . $this->MY_DARC_DOK . '</a>';
		} else if (preg_match('/^Z\d{2}$/', $this->MY_DARC_DOK)) {
			$dokstring = '<a href="https://' . $this->MY_DARC_DOK . '.vfdb.org" target="_blank">' . $this->MY_DARC_DOK . '</a>';
		} else {
			$dokstring = $this->MY_DARC_DOK;
		}
		return $dokstring;
	}

	private function getFormattedDok(): string
	{
		$dokstring = '';
		if (preg_match('/^[A-Y]\d{2}$/', $this->dxDARCDOK)) {
			$dokstring = '<a href="https://www.darc.de/' .  $this->dxDARCDOK . '" target="_blank">' . $this->dxDARCDOK . '</a>';
		} else if (preg_match('/^DV[ABCDEFGHIKLMNOPQRSTUVWXY]$/', $this->dxDARCDOK)) {
			$dokstring = '<a href="https://www.darc.de/der-club/distrikte/' . strtolower(substr($this->dxDARCDOK, 2, 1)) . '" target="_blank">' . $this->dxDARCDOK . '</a>';
		} else if (preg_match('/^Z\d{2}$/', $this->dxDARCDOK)) {
			$dokstring = '<a href="https://' . $this->dxDARCDOK . '.vfdb.org" target="_blank">' . $this->dxDARCDOK . '</a>';
		} else {
			$dokstring = $this->dxDARCDOK;
		}
		if ($dokstring !== '') {
			$dokstring .= '<a href="javascript:spawnLookupModal(\''.$this->dxDARCDOK.'\',\'dok\');"> <i class="fas fa-globe"></a>';
		}

		return $dokstring;
	}

	private function getFormattedMode(): string
	{
		if ($this->submode !== '') {
			return $this->submode;
		} else {
			return $this->mode;
		}
	}

	private function getFormattedBand(): string
	{
		$label = "";
		if ($this->propagationMode !== '') {
			$label .= $this->propagationMode;
			if ($this->satelliteName !== '') {
				$label .= " " . $this->satelliteName;
				if ($this->satelliteMode !== '') {
					$label .= " " . $this->satelliteMode;
				}
			}
		}
		$label .= " " . $this->band;
		if ($this->bandRX !== '' && $this->band !== '') {
			$label .= "/" . $this->bandRX;
		}
		return trim($label);
	}

	private function getFormattedFrequency(): string
	{
		$label = '';
		if ($this->frequency) {
			$label .= $this->CI->frequency->qrg_conversion($this->frequency ?? 0);
		}

		if ($this->frequencyRX && $this->frequency) {
			// Only show RX frequency if it's different from TX
			if (!$this->CI->frequency->frequencies_are_equal($this->frequency, $this->frequencyRX)) {
				$converted_rx = $this->CI->frequency->qrg_conversion($this->frequencyRX);
				if ($converted_rx) {
					$label .= "/" . $converted_rx;
				}
			}
		}

		return trim($label);
	}

	private function getFormattedDeRefs(): string
	{
		$includedInRefs=[];
		$refs = [];
		if ($this->deVUCCGridsquares !== '') {
			$refs[] = $this->deVUCCGridsquares;
		} else {
			if ($this->deGridsquare !== '') {
				$refs[] = $this->deGridsquare;
			}
		}
		if ($this->deIOTA !== '') {
			if ($this->deIOTAIslandID !== '') {
				$refs[] = "IOTA:" . $this->deIOTA . "(" . $this->deIOTAIslandID . ")";
			} else {
				$refs[] = "IOTA:" . $this->deIOTA;
			}
		}
		if ($this->deSOTAReference !== '') {
			$refs[] = "SOTA:" . $this->deSOTAReference;
		}
		if ($this->deWWFFReference !== '') {
			$includedInRefs[] = "WWFF";
			$refs[] = "WWFF:" . $this->deWWFFReference;
		}
		if ($this->deSig !== '') {
			if (!in_array($this->deSig, $includedInRefs)) {
				$refs[] = $this->deSig . ":" . $this->deSigInfo;
			}
		}
		return trim(implode(" ", $refs));
	}

	private function getFormattedSotaLink() {
		return '<span id="dxsota"><a href="https://summits.sota.org.uk/summit/' . $this->dxSOTAReference . '" target="_blank">' . $this->dxSOTAReference . '</a></span>';
	}

	private function getFormattedSig(): string
	{
		if ($this->dxSig !== '') {
			return $this->dxSig . ":" . $this->dxSigInfo;
		}
		return '';
	}

	private function getFormattedWwff() {
		return '<a href="https://www.cqgma.org/zinfo.php?ref=' . $this->dxWWFFReference . '" target="_blank"><span id="dxwwff">'. $this->dxWWFFReference . '</span></a>';
	}

	private function getFormattedPota() {
		return '<a href="https://pota.app/#/park/' . $this->dxPOTAReference . '" target="_blank"><span id="dxpota">'. $this->dxPOTAReference . '</span></a>';
	}

	private function getFormattedQSLSent(): string
	{
		$showVia = false;
		$label = [];
		if ($this->QSLSent === "Y") {
			if ($this->QSLSentDate !== null) {
				$label[] = $this->QSLSentDate->format("Y-m-d");
			} else {
				$label[] = "Yes";
			}
			$showVia = true;
		} else if ($this->QSLSent === "N") {
			$label[] = "No";
		} else if ($this->QSLSent === "Q") {
			$label[] = "Queued";
			if ($this->QSLSentDate !== null) {
				$label[] = $this->QSLSentDate->format("Y-m-d");
			}
			$showVia = true;
		} else if ($this->QSLSent === "R") {
			$label[] = "Requested";
			if ($this->QSLSentDate !== null) {
				$label[] = $this->QSLSentDate->format("Y-m-d");
			}
			$showVia = true;
		}

		if ($showVia && $this->QSLSentVia !== '') {
			switch ($this->QSLSentVia) {
				case 'B':
					$label[] = "Bureau";
					break;
				case 'D':
					$label[] = "Direct";
					break;
				case 'E':
					$label[] = "Electronic";
					break;
				case 'M':
					$label[] = "Manager";
					break;
			}
		}

		return trim(implode(" ", $label));
	}

	private function getFormattedQSLReceived(): string
	{
		$showVia = false;
		$label = [];
		if ($this->QSLReceived === "Y") {
			if ($this->QSLReceivedDate !== null) {
				$label[] = $this->QSLReceivedDate->format("Y-m-d");
			} else {
				$label[] = "Yes";
			}
			$showVia = true;
		} else if ($this->QSLReceived === "N") {
			$label[] = "No";
		} else if ($this->QSLReceived === "Q") {
			$label[] = "Queued";
			if ($this->QSLReceivedDate !== null) {
				$label[] = $this->QSLReceivedDate->format("Y-m-d");
			}
			$showVia = true;
		} else if ($this->QSLReceived === "R") {
			$label[] = "Requested";
			if ($this->QSLReceivedDate !== null) {
				$label[] = $this->QSLReceivedDate->format("Y-m-d");
			}
			$showVia = true;
		}

		if ($showVia && $this->QSLReceivedVia !== '') {
			switch ($this->QSLReceivedVia) {
				case 'B':
					$label[] = "Bureau";
					break;
				case 'D':
					$label[] = "Direct";
					break;
				case 'E':
					$label[] = "Electronic";
					break;
				case 'M':
					$label[] = "Manager";
					break;
			}
		}

		return trim(implode(" ", $label));
	}

	private function getQrbLink($mygrid, $grid, $vucc) : string
	{
		if (!empty($grid)) {
			return '<a href="javascript:spawnQrbCalculator(\'' . $mygrid . '\',\'' . $grid . '\')"><i class="fas fa-globe"></i></a>';
		} else if (!empty($vucc)) {
			return '<a href="javascript:spawnQrbCalculator(\'' . $mygrid . '\',\'' . $vucc . '\')"><i class="fas fa-globe"></i></a>';
		}
		return '';
	}

	private function getIotaLink($iota) : string
	{
		if ($iota !== '') {
			return '<a href="javascript:spawnLookupModal(\''.$iota.'\',\'iota\');">'.$iota.'</a> <a href="https://www.iota-world.org/iotamaps/?grpref=' .$iota . '" target="_blank"><i class="fas fa-globe"></i></a>';
		}
		return '';
	}
}
