#!/usr/local/bin/php -q
<?php /* vim: set noet ts=2 sw=2 ft=php: : */

// Build complete file with all notes
define("BUILD_COMPLETE_FILE", TRUE);

if ($argc != 2 && $argc != 3) {
    die("usage: $argv[0] directory [since]");
}

$token = getenv("TOKEN");
if (!$token) {
    die("you have to set the TOKEN environment variable");
}
$token = rawurlencode($token);

$root = $argv[1];
if (substr($root,-1) != '/') {
    $root = "$root/";
}
$since = ($argc == 3 ? $argv[2] : "");

$SSL_fopen = false;
if(in_array('https', stream_get_wrappers())) {
    $SSL_fopen = true;
}

/* get user notes */
if($SSL_fopen) {
    $ctx = stream_context_create([
        'ssl' => [
            'ciphers' => 'DEFAULT:!DH',
        ],
    ]);
    $fp = @fopen(
        "https://master.php.net/fetch/user-notes.php?token=$token".($since?"&since=$since":""),
        "r",
        false,
        $ctx
    );
} else {
    $url = escapeshellarg("https://master.php.net/fetch/user-notes.php?token=$token".($since?"&since=$since":""));
    $fp = popen("curl -s $url",'r');
}

if (!$fp) {
    exit(1);
}

$count = 0;

if (BUILD_COMPLETE_FILE) {
    $bz = popen("bzip2 -9 -c > $root/all.bz2", "w");
}

while (!feof($fp)) {
    $line = chop(fgets($fp,8096));

    if (!strstr($line,"|")) {
        continue; # skip invalid lines
    }

    list($id,$sect,$rate,$ts,$user,$note,$up,$down) = explode("|",$line);

    $hash = substr(md5($sect),0,16);
    @mkdir($root.substr($hash,0,2),0755);

    $file = $root.substr($hash,0,2)."/$hash";
    if ($since && !$restarted[$file]++) {
        unlink($file);
    }

    $mtime = @filemtime($file);
    if (!($nf = @fopen($file,"a"))) {
        echo "unable to open $notes file $hash\n";
        continue;
    }
    if (strlen($note) == 0) {
        echo "note id $note is broken";
    } else {
        $note = gzuncompress(base64_decode($note)) or die ("$id failed\n");
        fputs($nf, "$id|$sect|$rate|$ts|$user|" . base64_encode($note) . "|$up|$down\n");
        if (BUILD_COMPLETE_FILE) {
            fputs($bz, "$id|$sect|$rate|$ts|$user|" . base64_encode($note) . "|$up|$down\n");
        }
        fclose($nf);
    }

    touch($file, $mtime < $ts ? $ts : $mtime);
    $count++;
}

if (BUILD_COMPLETE_FILE) {
    pclose($bz);
}

exit($count ? 0 : 1);