<?php

/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */

/**
 * FedoraClient is a PHP class to interact with web services
 *
 * PHP version 5
 *
 * Copyright (C) 2010-2013  Remi Collet
 * http://github.com/remicollet/rpmphp.
 *
 * Inspired from python-fedora
 *
 * FedoraClient is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FedoraClient is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * See <http://www.gnu.org/licenses/>
 *
 * @category  Main
 * @package   FedoraClient
 *
 * @author    Remi Collet <remi@fedoraproject.org>
 * @author    Johan Cwiklinski <johan@x-tnd.be>
 * @copyright 2010-2013 Remi Collet
 * @license   http://www.gnu.org/licenses/lgpl-2.1.txt LGPL License 2.1 or (at your option) any later version
 * @link      http://github.com/remicollet/rpmphp/
 * @since     The begining of times.
 */

class FedoraPkgdb extends FedoraClient
{
    private $_version = 0;

    function __construct (array $options=array())
    {
        if (isset($options['server']) && ($options['server'])) {
            $server = $options['server'];
        } else {
            $server = 'admin.fedoraproject.org';
        }
        parent::__construct("http://$server/api/", $options);

        $rep = $this->cache->get(__METHOD__, $this->url);
        if ($rep!==false) {
            $this->logDebug(2, __METHOD__."() get from cache");
        } else {
            $rep  =$this->sendRequest('version');
            $this->cache->save($rep, __METHOD__, $this->url);
            $this->logDebug(2, __METHOD__."() save to cache"
            );
        }

        if (isset($rep['version'])) {
            /* Pkgdb2 */
            $this->_version = $rep['version'];
        } else {
            /* Pkgdb */
            $this->setUrl("https://$server/pkgdb/");
        }
    }

    function getVersion()
    {
        return $this->_version;
    }

    function getBranches($refresh=false)
    {
        $rep = ($refresh ? false : $this->cache->get(__METHOD__, $this->url));
        if ($rep) {
            $this->logDebug(2, __METHOD__."() get from cache");
        } else {
            $rep  =$this->sendRequest('collections');
            $this->cache->save($rep, __METHOD__, $this->url);
            $this->logDebug(2, __METHOD__."() save to cache");
        }

        $branches = array();
        if (isset($rep['collections'])) {
            if ($this->_version > 0) {
                foreach ($rep['collections'] as $coll) {
                    if (isset($coll['branchname'])) { /* pkgdb version 2 */
                        $branches[$coll['branchname']] = $coll;
                    }
                }
            } else {
                foreach ($rep['collections'] as $coll) {
                    if (isset($coll[0]['branchname'])) { /* pkgdb version 1 */
                        $branches[$coll[0]['branchname']] = $coll[0];
                    }
                }
            }
        }
        return $branches;
    }

    function getPackageURL($name)
    {
        return $this->url.'acls/name/'.$name;
    }

    function getPackageInfo($name, $refresh=false)
    {
        if ($this->_version > 0) {
            $url='package/acl/get/'.urlencode($name);
            $rep = ($refresh ? false : $this->cache->get(__METHOD__, $this->url.$url));
            if ($rep) {
                $this->logDebug(2, __METHOD__."($name) get from cache");
            } else {
                $rep  =$this->sendRequest($url);
                $this->cache->save($rep, __METHOD__, $this->url.$url);
                $this->logDebug(2, __METHOD__."($name) save to cache");
            }
            $this->logDebug(8, print_r($rep, true));
            return false;
        }

        $url='acls/name/'.urlencode($name);
        $rep = ($refresh ? false : $this->cache->get(__METHOD__, $this->url.$url));
        if ($rep) {
            $this->logDebug(2, __METHOD__."($name) get from cache");
        } else {
            $rep  =$this->sendRequest($url);
            $this->cache->save($rep, __METHOD__, $this->url.$url);
            $this->logDebug(2, __METHOD__."($name) save to cache");
        }

        if (isset($rep['status']) && !$rep['status']) {
            $this->logDebug(1, __METHOD__."($name) ".$rep['message']);
            return false;
        }
        $this->logDebug(8, print_r($rep, true));
        $branches = array();
        foreach ($rep['packageListings'] as $pack) {
            $branches[$pack['collection']['branchname']] = $pack;
        }
        $this->logDebug(7, print_r($branches, true));
        return $branches;
    }

    function getBranch($name, $refresh=false)
    {
        if ($this->_version > 0) {
            $url='collections/'.urlencode($name).'/';
            $rep = ($refresh ? false : $this->cache->get(__METHOD__, $this->url.$url));
            if ($rep) {
                $this->logDebug(2, __METHOD__."($name) get from cache");
            } else {
                $rep  =$this->sendRequest($url);
                $this->cache->save($rep, __METHOD__, $this->url.$url);
                $this->logDebug(2, __METHOD__."($name) save to cache");
            }
            return (isset($rep['collections'][0]) ? $rep['collections'][0] : array());
        } 
        $branches = $this->getBranches($refresh);

        if (isset($branches[$name])) {
            return $branches[$name];
        }
        return false;
    }

    function getCritPath($refresh=false)
    {
        if ($this->_version > 0) {
            $url="critpath";
            $rep = ($refresh ? false : $this->cache->get(__METHOD__, $this->url));
            if ($rep) {
                $this->logDebug(2, __METHOD__."() get from cache");
            } else {
                $rep  =$this->sendRequest($url);
                $this->cache->save($rep, __METHOD__, $this->url);
                $this->logDebug(2, __METHOD__."() save to cache");
            }
            return (isset($rep['pkgs']) ? $rep['pkgs'] : NULL);
        }

        $url="lists/critpath";
        $rep = ($refresh ? false : $this->cache->get(__METHOD__, $this->url));
        if ($rep) {
            $this->logDebug(2, __METHOD__."() get from cache");
        } else {
            $rep  =$this->sendRequest($url);
            $this->cache->save($rep, __METHOD__, $this->url);
            $this->logDebug(2, __METHOD__."() save to cache"
            );
        }
        return (isset($rep['pkgs']) ? $rep['pkgs'] : NULL);
    }
}