<?php

function microtime_float() {
   list($usec, $sec) = explode(" ", microtime());
   return ((float)$usec + (float)$sec);
}

function getAdultComics() {
   $adultlist = COMICSDIR . "/adultcomics.json";
   $adultcomics = array();
   if ( file_exists($adultlist) ) {
      $adultcomics = json_decode(file_get_contents($adultlist), true);
   }
   return $adultcomics;
}

function safeFileName($file = "") {
   $to_remove = array("<", ">", "#", "\"", "/", "\\", "*", "?", "|");
   return str_replace($to_remove, '', $file);
}

function makeThumb($item = "") {
   if ( $item == "" ) { return false; }
   $prefix = (substr(getcwd(), -4) == "ajax") ? "../" : "";
   if ( is_dir($item) ) {
      $isfolder = true;
      $folder = $item;
      $files = array();
      if ( $fh = opendir($folder) ) {
         while ( false !== ($entry = readdir($fh)) ) {
            if ( is_file($item . "/" . $entry) ) {
               $files[] = $entry;
            }
         }
         closedir($fh);
         natsort($files);
      }
      if ( count($files) == 0 ) { return false; }
      reset($files);
      $comic = $folder . "/" . current($files);
      $outfile = $prefix . THUMBSDIR . substr($folder, strlen(COMICSDIR)) . "_oem";
   } elseif ( is_file($item) ) {
      $isfolder = false;
      $file = $item;
      $comic = $file;
      $targetdir = $prefix . THUMBSDIR . substr(dirname($file), strlen(COMICSDIR)) . "/";
      if ( !is_dir($targetdir) ) {
         mkdir($targetdir, 0755, true);
      }
      $outfile = $targetdir . substr(basename($file), 0, -4) . "_oem";
   } else {
      return false;
   }
   if ( substr($comic, -3) == "cbz" ) {
      $zip = new ZipArchive();
      $opened = $zip->open($comic);
      if ( !$opened ) { return false; }
      $lowest = "~";
      $imgdata = null;
      for ( $i=0; $i<$zip->numFiles; $i++ ) {
         $imgname = basename($zip->getNameIndex($i));
         $parts = pathinfo($imgname);
         if ( isset($parts['extension']) ) {
            $imgext = strtolower($parts['extension']);
            if ( (strcmp($lowest, $imgname) > 0) && in_array($imgext, VALIDIMAGETYPES) ) {
               $lowest = $imgname;
               $imgdata = $zip->getFromIndex($i);
            }
         }
      }
      $zip->close();
      if ( is_null($imgdata) ) return false;
      $didwrite = file_put_contents($outfile, $imgdata);
      if ( !$didwrite ) return false;
   } elseif ( substr($comic, -3) == "cbr" ) {
      $rar_file = rar_open($comic);
      if ( $rar_file === false ) { return false; }
      $entries = rar_list($rar_file);
      $lowest = "~";
      foreach ( $entries as $entry ) {
         $imgname = $entry->getName();
         $parts = pathinfo($imgname);
         if ( isset($parts['extension']) ) {
            $imgext = strtolower($parts['extension']);
            if ( (strcmp($lowest, $imgname) > 0) && in_array($imgext, VALIDIMAGETYPES) ) {
               $lowest = $imgname;
               $didwrite = $entry->extract(false, $outfile);
               if ( !$didwrite ) { return false; }
            }
         }
      }
      rar_close($rar_file);
   } else {
      return false;
   }
   $input = new Imagick($outfile);
   $input->setImageFormat("jpg");
   $width = $input->getImageWidth();
   $height = $input->getImageHeight();
   $scale = 300 / $width;
   $newx = 300;
   $newy = intval($height * $scale);
   if ( $newy > 450 ) {
      $newy = 450;
      $scale = $height / 450;
      $newx = intval($width / $scale);
   }
   $thumb = substr($outfile, 0, -4) . ".jpg";
   $thumb = str_replace("#", "", $thumb);
   $input->resizeImage($newx, $newy, Imagick::FILTER_SINC, 1);
   $written = file_put_contents($thumb, $input->getImageBlob());
   unlink($outfile);
   return (($written === false) ? false : true);
}

// vim: set ai et ts=3 sw=3: