votes.php

<?php 
/* 
Copyright 2008 Daniel Lombraña González, David P. Anderson, Francisco Fernández de Vega

This file is part of Jarifa.

Jarifa is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Jarifa 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 Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with Jarifa.  If not, see <http://www.gnu.org/licenses/>.
*/

require_once("inc/poll.inc");
require_once("inc/identica.inc");

$poll = new poll();

// First, create the hash of the password for attaching BOINC projects

$passwd_hash = md5($poll->conf->projects->password."\n");

if ($_GET['auth']==$passwd_hash)
{
    
    $two_projects = array();
    
    // Attach to clients only the two most voted projects (in case of a draft with several projects, choose one random)
    $projects = $poll->get_projects($order="votes");
    
    // Save stats in stats_poll table
    
    $poll->save_stats();
    
    // Rank of votes, zero position has the highest number of votes and last position the lowest one.
    $votes = $poll->get_votes();
    
    if (count($votes)>1) // If there are more than two different scores of votes
    {
        for ($i=0;$i<2;$i++)
            {
                $clause = "votes=".$votes[$i]->votes;
                $candidate_projects= $poll->get_projects("name",$clause);
                // If there are more than one project with the same number of votes, we choose one of them randomly
                shuffle($candidate_projects);
                $two_projects[] = $candidate_projects[0];
            }
    }
    else 
    {
        $clause = "votes=".$votes[0]->votes;
        $candidate_projects = $poll->get_projects("name",$clause);
        // If there are more than one project with the same number of votes, we choose one of them randomly
        shuffle($candidate_projects);
        $two_projects[] = $candidate_projects[0];
        $two_projects[] = $candidate_projects[1];
    }
    
    // Enable the two most voted projects
    
    // First, dettach all the projects
    $projects = $poll->get_projects();
    $poll->disable_projects($projects);
    // Then attach only the two most voted
    $poll->enable_projects($two_projects);
    
    // If identica is enabled, post the two most voted projects to Identi.ca
    if ($poll->conf->xpath("/conf/identica"))
    {
        $Identica = new identica($poll->conf->account_manager->language);
        $Identica->update_status(gettext("We are now collaborating with the following research projects: #").strtolower(str_replace("@","at",$two_projects[0]->name)).gettext(" and #").strtolower(str_replace("@","at",$two_projects[1]->name)));
    
    }
    
    // Reset the number of votes that each project has received, and allow users to vote again
    $poll->reset_votes();
}
else
{
    // Print an error explaining the problem
    printf(gettext("Password mismatch"));
}

?>