<?php

if (!defined('PHPWG_ROOT_PATH')) die('Hacking attempt!');

define("QUOTES_NONE",   FALSE);
define("QUOTES_LAZY",   1);
define("QUOTES_SINGLE", 2);
define("QUOTES_SAFE",   4);

final class greyDragonCore {

  // singleton instance 
  private static $instance;
  private static $version;
  private $themeConfig;
  private $themeConfigMin;

  public static function Instance($ver = '') {
    if (!self::$instance):
      self::$instance = new self($ver);
    endif;
    return self::$instance; 
  }

  private function __construct($ver = ''){
    self::loadConfig($ver);
  }

  private function getDefaults() {

    return array(
      // General Settings
      "p_logo_path"        => array("value" => null,     "quotes" => QUOTES_NONE),
      "p_favicon_path"     => array("value" => null,     "quotes" => QUOTES_NONE),
      "p_apple_path"       => array("value" => null,     "quotes" => QUOTES_NONE),
      "p_header"           => array("value" => null,     "quotes" => QUOTES_LAZY),
      "p_footer"           => array("value" => null,     "quotes" => QUOTES_LAZY),
      "p_colorpack"        => array("value" => null,     "quotes" => QUOTES_NONE),
    
      // Advanced Options - General
      "p_main_menu"        => array("value" => "closed", "quotes" => QUOTES_NONE), // static, closed, opened, top, header-bottom, header-top, disabled
      "p_animated_menu"    => array("value" => "off",    "quotes" => QUOTES_NONE),

      "p_lowertext"        => array("value" => "off",    "quotes" => QUOTES_NONE),
      "p_credits"          => array("value" => "off",    "quotes" => QUOTES_NONE),
      "p_nogenerator"      => array("value" => "off",    "quotes" => QUOTES_NONE),
      "p_hideabout"        => array("value" => "off",    "quotes" => QUOTES_NONE),
      "p_adminemail"       => array("value" => "off",    "quotes" => QUOTES_NONE),
      "p_nocounter"        => array("value" => "off",    "quotes" => QUOTES_NONE),

      // Advanced Options - Photo Page 
      "p_pict_tab_default" => array("value" => "desc",   "quotes" => QUOTES_NONE),
      "p_pict_tab_anim"    => array("value" => "off",    "quotes" => QUOTES_NONE),

      // Advanced Options - Root Page 
      "p_rootpage"         => array("value" => "off",    "quotes" => QUOTES_NONE),
      "p_rootpage_desc"    => array("value" => null,     "quotes" => QUOTES_SAFE | QUOTES_LAZY),
      "p_rootpage_src"     => array("value" => "slider", "quotes" => QUOTES_NONE),
      "p_rootpage_id"      => array("value" => 1,        "quotes" => QUOTES_NONE),
      "p_rootpage_mode"    => array("value" => "fade",   "quotes" => QUOTES_NONE),
      "p_rootpage_delay"   => array("value" => 10,       "quotes" => QUOTES_NONE),
      "p_rootpage_elastic" => array("value" => "off",    "quotes" => QUOTES_NONE),
      "p_rootpage_navarr"  => array("value" => "off",    "quotes" => QUOTES_NONE),
      "p_rootpage_navctr"  => array("value" => "off",    "quotes" => QUOTES_NONE),

      'p_customcss'        => array("value" => null,     "quotes" => (QUOTES_LAZY | QUOTES_SINGLE)),
      'p_debug'            => array("value" => "off",    "quotes" => FALSE)
    );
  }

  private function loadConfig($ver = '') {
    global $conf;
    $this->themeConfigMin = unserialize($conf['greydragon']);
    $this->themeConfigMin["version"] = $ver;

    $this->themeConfig = $this->validateDefault($this->themeConfigMin);
  }

  private function validateDefault($config) {
    $theme_default_settings = $this->getDefaults();

    foreach ($theme_default_settings as $key => $value):
      if ($value["value"]):
        if (array_key_exists($key, $config)):
        else:
          $config[$key] = $value["value"];
        endif;
      endif;
    endforeach;

    // Populate some system settings

    $url_root = get_root_url();
    $config['U_SITE_ADMIN'] = $url_root . 'admin.php?page=';

    return $config;
  }

  public function initEvents() {
    // add_event_handler('get_admin_plugin_menu_links', array(&$this, 'pluginAdminMenu') );
  }

  public function loadCSS() {
    // parent::loadCSS();
    // GPCCore::addUI('gpcCSS');
  }

  public function getConfig($isFull = TRUE) {
    if ($isFull):
      return $this->themeConfig;
    else:
      return $this->themeConfigMin;
    endif;
  }

  public function setSetting($name, $value) {
    $this->themeConfig[$name] = $value;
  }

  public function saveSettingFromPOST($name) {
    $theme_default_settings = $this->getDefaults();

    $isFound  = FALSE;
    $isStored = FALSE;

    if (array_key_exists($name, $theme_default_settings)):
      $setting    = $theme_default_settings[$name];
      $default    = $setting["value"];
      $quotes     = $setting["quotes"];

      if (isset($_POST[$name]) and !empty($_POST[$name])):
        $isFound = TRUE;
        $value   = $_POST[$name];

        if ($value != $default):
          $isStored = TRUE;

          if ($quotes):
            if (($quotes & QUOTES_LAZY) == QUOTES_LAZY):
              $value = str_replace('\"', '"', $value);
              $value = str_replace("\'", "'", $value);
            endif;
            if (($quotes & QUOTES_SINGLE) == QUOTES_SINGLE):
              $value = str_replace("'", '"', $value);
            endif;
            if (($quotes & QUOTES_SAFE) == QUOTES_SAFE):
              $value = str_replace("'", '&apos;', $value);
              $value = str_replace('"', '&quot;', $value);
            endif;

            $value = str_replace("\'", "';", $value);
          endif;
        endif;
      endif;

      if ($isFound):
        $this->themeConfig[$name] = $value;
        if ($isStored):
          $this->themeConfigMin[$name] = $value;
        endif;
      endif;
    endif;

    // Config cleanup
    if ((!$isStored) && (array_key_exists($name, $this->themeConfigMin))):
      unset($this->themeConfigMin[$name]);
    endif;
    if ((!$isFound) && (array_key_exists($name, $this->themeConfig))):
      unset($this->themeConfig[$name]);
    endif;    
   
  }

  public function saveSettingsFromPost(){
    $theme_default_settings = $this->getDefaults();

    if ((isset($_POST["p_reset"])) && ($_POST["p_reset"] == "on")):
      // Reset theme settings
      conf_update_param('greydragon', pwg_db_real_escape_string(serialize(array())));
      load_conf_from_db();
      $this->loadConfig();
    else:
      foreach ($theme_default_settings as $key => $value):
        $this->saveSettingFromPOST($key);
      endforeach;
    endif;
  }

  public function hasSettingFromPost($name) {
    return (isset($_POST[$name]));
  }  

  public function getSettingFromPost($name) {
    if (isset($_POST[$name])):
      return $_POST[$name];
    else:
      return FALSE;
    endif;
  }

  public function hasOption($name, $isGlobal = FALSE) {
    global $conf;

    if ($isGlobal):
      return (array_key_exists($name, $conf) && isset($conf[$name]) && ($conf[$name]));
    else:
      return (array_key_exists($name, $this->themeConfig));
    endif;
  }

  public function getOption($name, $isGlobal = FALSE) {
    global $conf;

    if ($isGlobal):
      if (array_key_exists($name, $conf)):
        return $conf[$name];
      else:
        return FALSE;
      endif;
    else:
      if (array_key_exists($name, $this->themeConfig)):
        return $this->themeConfig[$name];
      else:
        return FALSE;
      endif;
    endif;
  }

  public function prepareHomePage($prefix, $pageId) {

    $r_desc    = $this->getOption('p_rootpage_desc');
    $r_scr     = $this->getOption('p_rootpage_src');
    $r_mode    = $this->getOption('p_rootpage_mode');
    $r_id      = $this->getOption('p_rootpage_id');
    $r_delay   = $this->getOption('p_rootpage_delay');
    $r_elastic = ($this->getOption('p_rootpage_elastic') == "on")? 'true' : 'false';
    $r_navarr  = ($this->getOption('p_rootpage_navarr') == "on")? 'true' : 'false';
    $r_navctr  = ($this->getOption('p_rootpage_navctr') == "on")? 'true' : 'false';

    $content = '<!-- GD Auto generated. Do not modify -->
<style type="text/css">
  .titrePage { display: none; }
  .content { max-width: 95%; margin: 1em 0 1em 4% !important; }
</style>
<div id="gdHomeContent">';
    if ($r_desc):
      $content .= '
  <div class="gdHomeQuote">' . $r_desc . '</div>';
    endif;
    $content .= '
  <div class="gdHomePagePhoto">
    <a href="index.php?/categories">
      <div style="width: 800px; min-height: 500px; display: inline-block; overflow: hidden;">
';

      if ($r_scr == "photo"):
        $content .= '[photo id=' . $r_id . ' size=M html=yes link=no]';
      elseif ($r_scr == "random"):
        $content .= '[random album=' . $r_id . ' size=M html=yes link=no]';
      else:
        $content .= '[slider album=' . $r_id . ' nb_images=10 random=yes size=M speed=' . $r_delay . ' title=no effect=' . $r_mode . ' arrows=' . $r_navarr . ' control=' . $r_navctr . ' elastic=' . $r_elastic . ']';
      endif;
      $content .= '      
      </div>
    </a>
  </div>
</div>';

    // <div class="gdHomeLinks">
    //   <a href="index.php?/categories">Gallery</a>&nbsp;&#9679;&nbsp;<a href="index.php?/contact">Contact</a>
    //  </div>

    $query = 'UPDATE ' . $prefix . 'additionalpages '
           . 'SET content = "' . pwg_db_real_escape_string($content) . '" '
           . ' , standalone = FALSE '
           . 'WHERE (id = ' . $pageId . ') AND (content <> "' . pwg_db_real_escape_string($content) . '");';
    pwg_query($query);
    return (pwg_db_changes() > 0);
  }

  public function getHeader() {
    $content = "";
    if ($this->hasOption('p_logo_path')):
      $content .= '<a title="Home" id="g-logo" href="' . PHPWG_ROOT_PATH . '"><img alt="Home" src="' . PHPWG_ROOT_PATH . $this->getOption('p_logo_path') . '"></a>';
    endif;
    if ($this->hasOption('p_header')):
      $content .= '<a title="Home" id="g-header-text" href="' . PHPWG_ROOT_PATH . '">' . $this->getOption('p_header') . '</a>';
    elseif ($this->hasOption('page_banner', TRUE)):
      $content .= '<a title="Home" id="g-header-text" href="' . PHPWG_ROOT_PATH . '">' . $this->getOption('page_banner', TRUE) . '</a>';
    endif;                                                                                                              

    return $content;
  }

  public function getHead($content) {

    if ($favicon_name = $this->getOption('p_favicon_path')):
      $search = '#<link rel="shortcut icon".*?favicon.ico">#';
      $replacement = '<link rel="shortcut icon" type="image/x-icon" href="' . PHPWG_ROOT_PATH . $favicon_name . '">';
      $content = preg_replace($search, $replacement, $content);
    endif;

    if ($this->getOption('p_nogenerator') == "on"):
      $search = '#<meta name="generator" .*see piwigo.org">#';
      $replacement = '';
      $content = preg_replace($search, $replacement, $content);
    endif;

    return $content;
  }

}

?>