OpenStreetBrowser/bin/tag2link-converter

#!/usr/bin/php
<?php
$tag2link = array();

$files = array('data/tag2link-wikidata.json', 'data/tag2link-sophox.json');
foreach ($files as $file) {
  $data = json_decode(file_get_contents($file), true);

  foreach ($data['results']['bindings'] as $entry) {
    $key = substr($entry['OSM_key']['value'], 4);
    $link = $entry['formatter_URL']['value'];

    if (array_key_exists($key, $tag2link)) {
      // avoid duplicates
      $duplicates = array_filter($tag2link[$key]['formatter'], function ($e) use ($link) {
        return $e['link'] === $link;
      });

      if (sizeof($duplicates)) {
        if (array_key_exists('operatorLabel', $entry)) {
          foreach ($duplicates as $i => $d) {
            $tag2link[$key]['formatter'][$i]['operator'] = $entry['operatorLabel']['value'];
          }
        }

        continue;
      }
    }
    else {
      $tag2link[$key] = array(
        'label' => $entry['itemLabel']['value'],
        'formatter' => array(),
      );
    }
    
    $formatter = array(
      'link' => $link,
    );

    if (array_key_exists('operatorLabel', $entry)) {
      $formatter['operator'] = $entry['operatorLabel']['value'];
      print "{$formatter['operator']}\n";
    }
    else if (preg_match("/^https?:\/\/([^\/]*)(\/.*|)$/", $link, $m)) {
      $formatter['operator'] = $m[1];
    }

    $tag2link[$key]['formatter'][] = $formatter;
  }
}

file_put_contents('dist/tag2link.json', json_encode($tag2link, JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE));