<?php

require_once(dirname(__FILE__) . '/rcube_kolab_contacts.php');

/**
 * Kolab address book
 * 
 * Sample plugin to add a new address book source with data from Kolab storage
 *
 * This is work-in-progress for the Roundcube+Kolab integration.
 * The library part is to be moved into a separate PEAR package or plugin
 * that this and other Kolab-related plugins will depend on.
 *
 * @author Thomas Bruederli <roundcube@gmail.com>
 * 
 */
class kolab_addressbook extends rcube_plugin
{
    private $kolab;
    private $folders;
    private $sources;

    /**
     * Required startup method of a Roundcube plugin
     */
    public function init()
    {
        // load local config
        $this->load_config();
        
        $this->add_hook('addressbooks_list', array($this, 'address_sources'));
        $this->add_hook('addressbook_get', array($this, 'get_address_book'));
        $this->add_hook('imap_init', array($this, 'imap_init'));

        // extend include path to load bundled Horde classes
        $include_path = $this->home . '/lib' . PATH_SEPARATOR . ini_get('include_path');
        set_include_path($include_path);
    }

    /**
     * Handler for the addressbooks_list hook.
     *
     * This will add all instances of available Kolab-based address books
     * to the list of address sources of Roundcube.
     *
     * @param array Hash array with hook parameters
     * @return array Hash array with modified hook parameters
     */
    public function address_sources($p)
    {
        // setup Kolab backend
        rcube_kolab::setup();

        // get all folders that have "contact" type
        $this->kolab = Kolab_List::singleton();
        $this->folders = $this->kolab->getByType('contact');

        if (PEAR::isError($this->folders)) {
            raise_error(array(
              'code' => 600, 'type' => 'php',
              'file' => __FILE__, 'line' => __LINE__,
              'message' => "Failed to list contact folders from Kolab server:" . $this->folders->getMessage()),
            true, false);
        }
        else {
            foreach ($this->folders as $c_folder) {
                // create instance of rcube_contacts
                $abook_id = strtolower(asciiwords(strtr($c_folder->name, '/', '-')));
                $abook = new rcube_kolab_contacts($c_folder->name);
                $this->sources[$abook_id] = $abook;
                
                // register this address source
                $p['sources'][$abook_id] = array(
                    'id' => $abook_id,
                    'name' => $c_folder->name,
                    'readonly' => $abook->readonly,
                    'groups' => $abook->groups,
                );
            }
        }

        return $p;
    }
 
 
    /**
     * Getter for the rcube_addressbook instance
     */
    public function get_address_book($p)
    {
        if ($this->sources[$p['id']]) {
            $p['instance'] = $this->sources[$p['id']];
        }
        
        return $p;
    }
 
 
    /**
     * Make sure the X-Kolab-Type headers are also fetched when listing messages
     */
    function imap_init($p)
    {
        $p['fetch_headers'] = strtoupper('X-Kolab-Type');
        return $p;
    }
}