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<?php

/* --------------------------------------------------------------
   InfoBoxRepositoryDeleter.php 2016-08-26
   Gambio GmbH
   http://www.gambio.de
   Copyright (c) 2016 Gambio GmbH
   Released under the GNU General Public License (Version 2)
   [http://www.gnu.org/licenses/gpl-2.0.html]
   --------------------------------------------------------------
*/

/**
 * Class InfoBoxRepositoryDeleter
 *
 * @category   System
 * @package    InfoBox
 * @subpackage Repositories
 */
class InfoBoxRepositoryDeleter implements InfoBoxRepositoryDeleterInterface
{
    /**
     * Database connection
     *
     * @var CI_DB_query_builder
     */
    protected $db;
    
    /**
     * Name of the table for the info box messages entries.
     *
     * @var string
     */
    protected $infoBoxTable = 'infobox_messages';
    
    /**
     * Name of the table for the info box description entries.
     *
     * @var string
     */
    protected $infoBoxTableDescription = 'infobox_messages_description';
    
    /**
     * Name of the ID column.
     *
     * @var string
     */
    protected $id_column = 'infobox_messages_id';
    
    /**
     * Portal notifications source-type.
     * @var string
     */
    protected $portalSourceType = 'portal_info'; 


    /**
     * InfoBoxDeleter constructor.
     *
     * @param CI_DB_query_builder $db Database connection.
     */
    public function __construct(CI_DB_query_builder $db)
    {
        $this->db = $db;
    }
    
    
    /**
     * Deletes messages by source.
     *
     * @param StringType $source Source.
     *
     * @NOTE Find a better solution to delete the rows.
     */
    public function deleteBySource(StringType $source)
    {
        if($source->asString() === $this->portalSourceType) 
        {
            $this->db->update($this->infoBoxTable, ['status' => 'deleted'], ['source' => $source->asString()]); 
        }
        else 
        {
            $query = 'DELETE FROM ' . $this->infoBoxTable . ' , ' . $this->infoBoxTableDescription . ' USING '
                     . $this->infoBoxTable . ',' . $this->infoBoxTableDescription . ' WHERE ' . $this->infoBoxTable . '.'
                     . 'source = "' . $source->asString() . '"' . ' AND ' . $this->infoBoxTable . '.' . $this->id_column
                     . ' = ' . $this->infoBoxTableDescription . '.' . $this->id_column;
            
            $this->db->query($query);       
        }
    }
    
    
    /**
     * Deletes a message by ID.
     *
     * @param IdType $id Message ID.
     */
    public function deleteById(IdType $id)
    {
        $tables = array($this->infoBoxTable, $this->infoBoxTableDescription);
        $where  = array($this->id_column => $id->asInt());
        
        $source = $this->db->get($this->infoBoxTable)->row()->source; 
        
        if($source === $this->portalSourceType) 
        {
            $this->db->update($this->infoBoxTable, ['status' => 'deleted'], $where); 
        }
        else 
        {
            $this->db->delete($tables, $where);
        }
    }
    
    
    /**
     * Deletes a message based  on its identifier
     *
     * @param StringType $identifier Message identifier
     *
     * @todo Find a better solution to delete the rows.
     */
    public function deleteByIdentifier(StringType $identifier)
    {
        $where = ['identifier' => $identifier->asString()];         
        $source = $this->db->get($this->infoBoxTable, $where)->row()->source;
        
        if($source === $this->portalSourceType)
        {
            $this->db->update($this->infoBoxTable, ['status' => 'deleted'], $where);
        }
        else
        {
            $query = 'DELETE FROM ' . $this->infoBoxTable . ' , ' . $this->infoBoxTableDescription . ' USING '
                     . $this->infoBoxTable . ',' . $this->infoBoxTableDescription . ' WHERE ' . $this->infoBoxTable . '.'
                     . 'identifier  = "' . $identifier->asString() . '"' . ' AND ' . $this->infoBoxTable . '.'
                     . $this->id_column . ' = ' . $this->infoBoxTableDescription . '.' . $this->id_column;
            
            $this->db->query($query);
        }
    }
}