*  @copyright  2007-2011 PrestaShop SA
*  @version  Release: $Revision: 6594 $
*  @license    http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/
if (!defined('_CAN_LOAD_FILES_'))
	exit;
define('BLOCKTAGS_MAX_LEVEL', 3);
class BlockTags extends Module
{
	function __construct()
	{
		$this->name = 'blocktags';
		$this->tab = 'front_office_features';
		$this->version = 1.0;
		$this->author = 'PrestaShop';
		$this->need_instance = 0;
		parent::__construct();
		
		$this->displayName = $this->l('Tags block');
		$this->description = $this->l('Adds a block containing a tag cloud.');
	}
	function install()
	{
		if (parent::install() == false 
				OR $this->registerHook('leftColumn') == false
				OR $this->registerHook('header') == false
				OR Configuration::updateValue('BLOCKTAGS_NBR', 10) == false)
			return false;
		return true;
	}
	public function getContent()
	{
		$output = '
'.$this->displayName.'
';
		if (Tools::isSubmit('submitBlockTags'))
		{
			if (!$tagsNbr = Tools::getValue('tagsNbr') OR empty($tagsNbr))
				$output .= ''.$this->l('Please fill in the "tags displayed" field.').'
';
			elseif ((int)($tagsNbr) == 0)
				$output .= ''.$this->l('Invalid number.').'
';
			else
			{
				Configuration::updateValue('BLOCKTAGS_NBR', (int)($tagsNbr));
				$output .= '
'.$this->l('Settings updated').'
 ';
			}
		}
		return $output.$this->displayForm();
	}
	public function displayForm()
	{
		$output = '
		';
		return $output;
	}
	/**
	* Returns module content for left column
	*
	* @param array $params Parameters
	* @return string Content
	*
	* @todo Links on tags (dedicated page or search ?)
	*/
	function hookLeftColumn($params)
	{
		global $smarty;
		$tags = Tag::getMainTags((int)($params['cookie']->id_lang), (int)(Configuration::get('BLOCKTAGS_NBR')));
		if (!sizeof($tags))
			return false;
		foreach ($tags AS &$tag)
			$tag['class'] = 'tag_level'.($tag['times'] > BLOCKTAGS_MAX_LEVEL ? BLOCKTAGS_MAX_LEVEL : $tag['times']);
		$smarty->assign('tags', $tags);
		
		return $this->display(__FILE__, 'blocktags.tpl');
	}
	function hookRightColumn($params)
	{
		return $this->hookLeftColumn($params);
	}
	
	function hookHeader($params)
	{
		Tools::addCSS(($this->_path).'blocktags.css', 'all');
	}
}