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<?php
// ---
// --- Listening to blockchain.info to get the last block
// ---
// ---
// --- La config globale
// ---
require_once '../../global/inc/config.php';
// ---
// --- External dependances
// ---
require TOPISTO_PATH.'/ressources/vendor/autoload.php';
$width       = 840;
$height      = 104;
$final_hash  = 'default';
$nb_max      = 6;
$numprev     = 0;
$img = imagecreatetruecolor($width, $height*$nb_max);
$gris = imagecolorallocate($img, 180, 180, 180);
$noir = imagecolorallocate($img, 0, 0, 0);
$tr = imagecolorallocate($img, 220, 220, 220);
imagecolortransparent($img, $tr);
imagefilledrectangle($img, 0, 0, $width, $height*$nb_max, $tr);
$handle = fopen(DATA_PATH.'/hashes2hashes/liste.txt', 'r');
if ($handle) {
  while (($nb_max > 0)&&(($hash = fgets($handle, 4096)) !== false)) {
    $hash = preg_replace('~[[:cntrl:]]~', '', $hash);
    $split = explode(' ', $hash);
    $numero = intval($split[0]);
    $hash   = $split[1];
    if ($final_hash == 'default') $final_hash = $hash;
    if (($numprev != 0) && ($numprev != ($numero - 1))) {
      imagefilledrectangle($img, 0, $height*$nb_max, $width, $height*($nb_max-1), $gris);
      imagerectangle($img, 0, $height*$nb_max, $width, $height*($nb_max-1), $noir);
      echo $nb_max.' '.($numprev+1).' manquant !'.PHP_EOL;
      $nb_max -= 1;
    }
    $numprev = $numero;
    $nb_max -= 1;
    echo $nb_max.' '.$numero.' '.$hash.PHP_EOL;
    $hash = DATA_PATH.'/hashes/'.$hash.'.png';
    if (file_exists($hash))
    {
      $src_img = imagecreatefrompng($hash);
      if ($src_img) 
      {
        if (FALSE === imagecopy($img, $src_img, 0, $height*$nb_max, 0, 0, $width, $height))
          echo "Erreur : problème de copie image".PHP_EOL;
      } else echo "Erreur: ".$hash." ne semble pas être une image PNG".PHP_EOL;
    } else echo "Erreur: ".$hash." n'a pas été trouvé".PHP_EOL;
  }
  fclose($handle);
} else echo "Erreur: fopen('".DATA_PATH."/hashes2hashes/liste.txt') a échoué".PHP_EOL;
imagepng($img, DATA_PATH.'/hashes2hashes/'.$final_hash.'.png');
imagedestroy($img);
?>