<?php

// NOTE: the core client fetches download.php?xml=1 every so often;
// don't break this!!!

require_once("docutil.php");
require_once("versions.inc");
require_once("../html/inc/translation.inc");

$client_info = $_SERVER['HTTP_USER_AGENT'];

function latest_version($p) {
    foreach ($p['versions'] as $i=>$v) {
        if (!$dev && is_dev($v)) continue;
        return $v;
    }
    foreach ($p['versions'] as $i=>$v) {
        return $v;
    }
}

// show a download link as a button or table row
//
function download_link($pname, $button=false) {
    global $platforms;
    global $url_base;
    $p = $platforms[$pname];
    $v = latest_version($p);
    $file = $v['file'];
    $long_name = $p['name'];
    $num = $v['num'];
    $path = "dl/$file";
    $url = $url_base.$file;
    $dlink = "<a href=\"$url\">$file</a>";
    $s = number_format(filesize($path)/1000000, 2);

    if ($button) {
        echo "
            <table cellpadding=10><tr><td class=heading>
            <a href=\"$url\"><font size=4><u>".tra("Download BOINC")."</u></font></a>
            <br>".
            sprintf(tra("%s for %s (%s MB)"), $num, $long_name, $s )."
            </td></tr> </table>
        ";
        if ($pname == 'linux'||$pname == 'linuxx64') {
            show_linux_info();
        }
    } else {
        echo "<tr>
            <td class=rowlineleft>$long_name</td>
            <td class=rowline> $num</td>
            <td class=rowlineright><a href=$url>Download</a> ($s MB)</td>
            </tr>
        ";
    }
}

$apps = array(
    array('classic.jpg', 180, 143),
    array('cpdn_200.jpg', 200, 147),
    array('eah_200.png', 200, 150),
    array('rosetta_at_home.jpg', 200, 150),
    array('qah.200x150.png', 200, 150),
);

function show_pictures() {
    global $apps;
    shuffle($apps);
    $a0 = $apps[0];
    $a1 = $apps[1];
    $f0 = $a0[0];
    $f1 = $a1[0];
    echo "
        <div style=\"max-height: 300px\">
        <img src=\"images/mgrwork.png\" alt=\"BOINC manager\"><br>
        <div style=\"position:relative; top:-80px; left:30px\">
            <img src=\"images/$f0\" alt=\"BOINC project\"><br>
        </div>
        <div style=\"position:relative; top:-160px; left:70px\">
            <img src=\"images/$f1\" alt=\"BOINC project\"><br>
        </div>
        </div>
    ";
}

function show_download($pname) {
    echo "
        <table cellpadding=10><tr><td valign=top>
        ".tra("BOINC is a program that lets you donate your idle computer time to science projects like SETI@home, Climateprediction.net, Rosetta@home, World Community Grid, and many others. <p> After installing BOINC on your computer, you can connect it to as many of these projects as you like.")
        ."<p>"
        .tra("You may run this software on a computer only if you own the computer or have the permission of its owner.").
        "<p>"
    ;
    if ($_GET['foo']) $pname = null;
    if ($pname) {
        download_link($pname, true);
    } else {
        list_start();
        list_heading_array(array(
            'Computer type',
            'Current version ',
            'Size'
        ));
        download_link('win');
        download_link('winx64');
        download_link('mac');
        download_link('linux');
        download_link('linuxx64');
        download_link('linuxcompat');
        end_table();
    }
    echo "
        <p>
        <b>"
        .sprintf(
            tra("Note: if your computer is equipped with an NVIDIA Graphics Processing Unit (GPU), you may be able to %suse it to compute faster%s"),
                "<a href=cuda.php>", ".</a>"
        )
        ."</b>
        <br><br>
        <center>
        <a href=\"wiki/System_requirements\"><span class=nobr>".tra("System requirements")."</span></a>
        | <a href=\"wiki/Release_Notes\"><span class=nobr>".tra("Release notes")."</span></a>
        | <a href=\"wiki/BOINC_Help\"><span class=nobr>".tra("Help")."</span></a>
        | <a href=download_all.php><span class=nobr>".tra("All versions")."</span></a>
        | <a href=\"trac/wiki/VersionHistory\">Version history</a>
        </center>
        </td><td valign=top>
    ";
    show_pictures();
    echo "
        </td>
        </tr></table>
    ";
}

if ($_GET['xml']) {
    $args = strstr($_SERVER['REQUEST_URI'], '?');
    Header("Location: download_all.php$args");
    exit();
}

page_head(tra("BOINC: compute for science"));

if ($_GET['all_platforms']) {
    show_download(null);
} else if (strstr($client_info, 'Windows')) {
    if (strstr($client_info, 'Win64')||strstr($client_info, 'WOW64')) {
        show_download('winx64');
    } else {
        show_download('win');
    }
} else if (strstr($client_info, 'Mac')) {
    show_download('mac');
} else if (strstr($client_info, 'Linux')) {
    if (strstr($client_info, 'x86_64')) {
        show_download('linuxx64');
    } else {
        show_download('linux');
    }
} else {
    show_download(null);
}

page_tail(true);

?>
