RNV Parser API for HomeAssistant, etc.

index.php

<?php
// ini_set('display_errors', 1);
// ini_set('display_startup_errors', 1);
// error_reporting(E_ALL);

function getHumanReadableTimespan($minutes) {
    $units = array(
      'day' => 1440,
      'hour' => 60,
      'minute' => 1,
    );
    $timespan = '';
    foreach ($units as $name => $divisor) {
      $quotient = floor($minutes / $divisor);
  
      if ($quotient > 0) {
        $timespan .= "$quotient $name";
        $timespan .= $quotient > 1 ? 's' : '';
        $timespan .= ' ';
        $minutes -= $quotient * $divisor;
      }
    }
    return trim($timespan);
}

$max = intval($_GET['max']) ?? 5;
$stop = $_GET['stop'] ?? "6032211";
$platforms = explode(',', $_GET['platforms']) ?? array();
$url = 'https://www.vrn.de/mngvrn/XSLT_DM_REQUEST?outputFormat=json&language=de&stateless=1&coordOutputFormat=WGS84[DD.ddddd]&coordOutputFormatTail=7&type_dm=stop&name_dm='.$stop.'&useRealtime=1&mode=direct&ptOptionsActive=1&deleteAssignedStops_dm=1&useProxFootSearch=0&mergeDep=1';
$jsonData = file_get_contents($url);
$data = json_decode($jsonData, true);
$departures = array();
$i = 0;
$now = new DateTime(array_values(array_filter($data['parameters'], function($v) { return $v['name'] == 'serverTime'; }))[0]['value']);
if (isset($_GET["meta"])) $departures["meta"] = [
    "datetime" => $now->format('Y-m-d H:i:s'),
    "stop" => $data['dm']['itdOdvAssignedStops']['nameWithPlace'],
    "url" => $url
];
foreach ($data['departureList'] as $departure) {
  if (isset($_GET['platforms']) && !in_array($departure['platform'], $platforms, true)) { continue; }
    $i += 1;
    if ($i > $max) break;
    $dateTime = $departure['dateTime'];
    $timestamp = mktime(0, 0, 0, $dateTime['month'], $dateTime['day'], $dateTime['year']);
    $date = new DateTime("@$timestamp");
    $date->setTime($dateTime['hour'], $dateTime['minute']);
    $formattedDateTime = $date->format('Y-m-d H:i:s');
    // $timeSpan = DateInterval::createFromDateString($departure['countdown'].' minutes'); // $now->diff($date, true); 
    $departures[$i] = [
        "time" => $formattedDateTime,
        "minutes" => $departure['countdown'],
        "timespan" => getHumanReadableTimespan(intval($departure['countdown'])), // $timeSpan->format('%a day, %h hour, %i minutes, %ss'),
        "line" => $departure['servingLine']['number'],
        "from" => $departure['servingLine']['directionFrom'],
        "to" => $departure['servingLine']['direction'],
        "platform" => $departure['platform'],
    ];
}
header("Content-Type: application/json");
echo json_encode($departures, JSON_PRETTY_PRINT);
?>