<?php

require dirname(__FILE__) . "/../variables.php";
require dirname(__FILE__) . "/../header.php";

function sendResponse($data) {
   header('Content-Type: application/json');
   echo json_encode($data);
   exit();
}

$dbbooks = array();
$parsedbooks = array();
$data = array();

$cli = ( php_sapi_name() != "cli" ) ? false : true;

if ( !$cli ) {
   $validated = require_login(NOREDIRECT);
   if ( !$validated ) {
      $data["validated"] = false;
      $data["admin"] = false;
      $data["new"] = 0;
      $data["purged"] = 0;
      $data["total"] = 0;
      sendResponse($data);
   }
}

$count_total = 0;
$count_new = 0;
$count_purged = 0;

function walkBooks($path = BOOKDIR) {
   global $globaldbh, $parsedbooks, $count_new, $count_total;
   $contents = glob($path . "/*");
   foreach ( $contents as $item ) {
      if ( is_dir($item) ) {
         walkBooks($item);
      } else {
         $dbpath = ($path == BOOKDIR ) ? "/" : substr($path, strlen(BOOKDIR));
         $dbfile = basename($item);
         $dbmtime = date("Y-m-d H:i:s", filemtime($item));
         $parsedbooks[] = $dbpath . (($path == BOOKDIR) ? "" : "/") . $dbfile;
         $query = "INSERT INTO books (path, filename, mtime) VALUES(:path, :filename, :mtime)";
         $sth = $globaldbh->prepare($query);
         $sth->bindValue(":path", $dbpath, PDO::PARAM_STR);
         $sth->bindValue(":filename", $dbfile, PDO::PARAM_STR);
         $sth->bindValue(":mtime", $dbmtime, PDO::PARAM_STR);
         try {
            $sth->execute();
            $count_new++;
         } catch (PDOException $e) {
         }
         $count_total++;
      }
   }
}

walkBooks();
$query = "SELECT id, path, filename FROM books ORDER BY path, filename";
$sth = $globaldbh->prepare($query);
$sth->execute();
while ( $row = $sth->fetch(PDO::FETCH_ASSOC) ) {
   $dbbook = $row['path'] . (($row['path'] != "/") ? "/" : "") . $row['filename'];
   $dbbooks[] = $dbbook;
}
$query = "DELETE FROM books WHERE CONCAT(path, filename)=:target OR CONCAT(path, '/', filename)=:target";
$sth = $globaldbh->prepare($query);
foreach ( $dbbooks as $dbbook ) {
   if ( !is_file(BOOKDIR . $dbbook) ) {
      $sth->bindValue(":target", $dbbook, PDO::PARAM_STR);
      $sth->execute();
      $count_purged++;
   }
}

if ( $cli ) {
   echo "New Books: {$count_new}\n";
   echo "Purged Books: {$count_purged}\n";
   echo "Total Books: {$count_total}\n";
} else {
   $data["new"] = $count_new;
   $data["purged"] = $count_purged;
   $data["total"] = $count_total;
   sendResponse($data);
}

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