#!/usr/bin/perl
# This code was forked from the LiveJournal project owned and operated
# by Live Journal, Inc. The code has been modified and expanded by 
# Dreamwidth Studios, LLC. These files were originally licensed under
# the terms of the license supplied by Live Journal, Inc, which can
# currently be found at:
#
# http://code.livejournal.org/trac/livejournal/browser/trunk/LICENSE-LiveJournal.txt
#
# In accordance with the original license, this code and all its
# modifications are provided under the GNU General Public License. 
# A copy of that license can be found in the LICENSE file included as
# part of this distribution.

use strict;
BEGIN {
    require "$ENV{LJHOME}/cgi-bin/ljlib.pl";
}

use LJ::Worker::Gearman;
use Storable;

gearman_decl("load_usertags" => \&load_usertags);
gearman_work();

sub load_usertags {
    my $job = shift;
    my $uid = $job->arg;

    my $u = LJ::load_userid($uid)
        or return "ERR:nouser";

    my $ret = sub {
        $u->do("SELECT RELEASE_LOCK(?)", undef, "loadtags:$u->{userid}");
        return Storable::nfreeze(shift);
    };

    my $rv = $u->do("SELECT GET_LOCK(?, 10)", undef, "loadtags:$u->{userid}");
    return "ERR:nolock" unless $rv;

    my $val = LJ::MemCache::get([ $u->{userid}, "tags:$u->{userid}" ]);
    return $ret->($val) if $val;

    my $res = LJ::Tags::get_usertagsmulti({ no_gearman => 1 }, $u);
    return $ret->($res->{$u->id} || {});
}
