#!/usr/bin/perl
################################################################################
# Mandriva Online                                                              # 
#                                                                              #
# Copyright (C) 2003-2006 Mandriva                                             #
#                                                                              #
# Daouda Lo                                                                    #
# Thierry Vignaud <tvignaud at mandriva dot com>                               #
#                                                                              #
# This program is free software; you can redistribute it and/or modify         #
# it under the terms of the GNU General Public License Version 2 as            #
# published by the Free Software Foundation.                                   #
#                                                                              #
# This program 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 General Public License for more details.                                 #
#                                                                              #
# You should have received a copy of the GNU General Public License            #
# along with this program; if not, write to the Free Software                  #
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.   #
################################################################################

use strict;
use POSIX ":sys_wait_h";
use lib qw(/usr/lib/libDrakX);
use standalone; # for explanations
use common;
use run_program;
use feature 'state';

BEGIN { unshift @::textdomains, 'mdkonline' }

use mygtk2 qw(gtknew); #- do not import gtkadd which conflicts with ugtk2 version
use ugtk2 qw(:all);
use lib qw(/usr/lib/libDrakX/drakfirsttime);
use mdkonline;
use Gtk2::Notify '-init', 'mdkapplet';

# POSIX unmasks the sigprocmask properly
my $sigset = POSIX::SigSet->new;
my $action = POSIX::SigAction->new('restart_applet',
                                   $sigset,
                                   &POSIX::SA_NODEFER);
POSIX::sigaction(&POSIX::SIGHUP, $action);

if (!find { $_ eq '--auto-update' } @ARGV) {
    if (my $pid = mdkonline::is_running('mdkapplet')) {
        die "mdkapplet already running ($pid)\n";
    }
}


ugtk2::add_icon_path("/usr/share/mdkonline/pixmaps/");
my $online_site = "http://www.mandrivalinux.com/";
my ($menu, $timeout, $network_timeout, $state_global);

my $localdir = "$ENV{HOME}/.MdkOnline";
my $localfile = "$localdir/mdkonline";

my $release = mdkonline::get_release();


my %config = getVarsFromSh('/etc/sysconfig/mdkapplet');
$config{UPDATE_FREQUENCY} ||= 3*60*60; # default to 3hours
$config{FIRST_CHECK_DELAY} ||= 5 * 60 * 1000; # default to 5 minutes


#compatibility
mkdir_p($localdir) if !-d $localdir;
-e "$ENV{HOME}/.mdkonline" and system("mv", "$ENV{HOME}/.mdkonline", $localfile);

my %state = (
	     delayed => {
		      colour => [ 'busy' ],
		      changes => [ 'busy', 'critical', 'disconnected' ],
		      menu => [ 'check' ],
 		      do_not_use_bubble => 1,
		      tt => [
                    #-PO: here %s will be replaced by the local time (eg: "Will check updates at 14:03:50"
                    N("Will check updates at %s", POSIX::strftime("%T", localtime(time() + $config{FIRST_CHECK_DELAY}/1000)))
                ],
		     },
    
	     okay => {
		      colour => [ 'okay' ],
		      changes => [ 'busy', 'critical', 'disconnected' ],
		      menu => [ 'check' ],
 		      do_not_use_bubble => 1,
		      tt => [ N_("Your system is up-to-date") ]
		     },
 	     critical => {
		      colour => [ 'noconf' ],
		      changes => [ 'okay', 'busy', 'critical', 'disconnected' ],
		      menu => [ 'check' ],
		      tt => [ N_("Service configuration problem. Please check logs and send mail to support\@mandrivaonline.com") ]
		     },
	     busy => {
		      colour => [ 'busy' ], 
		      changes => [ 'okay', 'critical', 'error', 'disconnected' ],
		      menu => [],
 		      do_not_use_bubble => 1,
		      tt => [ N_("Please wait, finding available packages...") ]
		     },
	     updates => {
		      colour => [ 'error' ],
		      changes => [ 'okay' ],
		      menu => [ 'update', 'check' ],
		      tt => [ N_("New updates are available for your system") ]
		     },
	     disconnected => {
		      colour => [ 'disconnect' ],
		      changes => [ 'okay', 'busy', 'critical', 'error' ],
		      menu => [ 'confNetwork' ],
		      tt => [ N_("Network is down. Please configure your network") ]
		     },
	     disabled => {
		      colour => [ 'disabled' ],
		      changes => [ 'okay', 'busy', 'critical', 'error' ],
		      menu => [],
		      tt => [ N_("Service is not activated. Please click on \"Online Website\"") ]
		     },
          locked => {
		      colour => [ 'noconf' ],
		      changes => [ 'okay', 'busy', 'critical', 'disconnected' ],
		      menu => [ 'check' ],
                tt => [ N_("urpmi database locked") ],
          },
	     notsupported => {
		      colour => [ 'disabled' ],
		      changes => [ 'okay', 'busy', 'critical', 'error' ],
		      menu => [],
		      tt => [ N_("Release not supported (too old release, or development release)") ]
		     },
          no_update_medium => {
		      colour => [ 'noconf' ],
		      changes => [ 'okay', 'busy', 'critical', 'disconnected' ],
		      menu => [ 'check' ],
                tt => [ N_("No medium found. You must add some media through 'Software Media Manager'.") ],
          },
          no_enabled_medium => {
		      colour => [ 'noconf' ],
		      changes => [ 'okay', 'busy', 'critical', 'disconnected' ],
		      menu => [ 'check' ],
                tt => [ N("You already have at least one update medium configured, but
all of them are currently disabled. You should run the Software
Media Manager to enable at least one (check it in the \"%s\"
column).

Then, restart \"%s\".", N("Enabled"), 'mdkapplet') ],
          },
	    );

my %comm_codes = (
    locked => {
        code => 2,
        status => 'locked',
        log => N_("urpmi database locked") . ", skipping updating urpmi database",
    },
    error_updating => {
        code => 3,
        status => 'critical',
        log => N_("Error updating media"),
    },
    no_update_medium => {
        code => 4,
        status => 'no_update_medium',
        log => "no update media configured",
    },
    no_enabled_medium => {
        code => 5,
        status => 'no_enabled_medium',
        log => "all update media are disabled",
    },
    updates => {
        code => 6,
        status => 'updates',
        log => N_("Checking... Updates are available\n") . "\n",
    },
    uptodate => {
        code => 7,
        status => 'okay',
        log => N_("Packages are up to date") . "\n",
    },
    db_not_open => {
        code => 8,
        status => 'critical',
        log => N_("Failed to open urpmi database") . "\n",
    },
);

my %actions = (
	       'update' => { name => N("Install updates"), launch => sub { installUpdates() } },
	       'check' => { name => N("Check Updates"), launch => \&checkUpdates },
	       'confNetwork' => { name => N("Configure Network"), launch => sub { configNetwork() } },
	      );

my $icon = Gtk2::StatusIcon->new;
#$icon->shape_combine_mask($img, 0, 0);
$icon->signal_connect(popup_menu => sub {
                          my ($_icon, $button, $time) = @_;
                          $menu and $menu->popup(undef, undef, undef, undef, $button, $time);
                      });
$icon->signal_connect(activate => sub {
                          my %actions = (
                              no_update_medium => sub { fork_exec('/usr/sbin/edit-urpm-sources.pl') },
                              no_enabled_medium => sub { fork_exec('/usr/sbin/edit-urpm-sources.pl') },
                              updates => \&installUpdates,
                          );
                          $actions{$state_global}->() if ref $actions{$state_global};
			  });
my ($opt) = @ARGV;
if ($opt eq '--force' || $opt eq '-f') { setAutoStart('TRUE') }

shouldStart() or die "$localfile should be set to TRUE: please use --force or -f option to launch applet\n";

go2State('delayed');
gtkflush();

Glib::Timeout->add($config{FIRST_CHECK_DELAY}, sub {
                       # schedule future checks:
                       setup_cyclic_check();
                       # perform a test after initial delay:
                       checkNetwork();
                       checkUpdates();
                       0;
                   });


$SIG{USR1} = 'IGNORE';
$SIG{USR2} = 'IGNORE';
$SIG{CHLD} = \&harvester;

run_program::raw({ detach => 1 }, 'ionice', '-p', $$, '-n7');
Gtk2->main;

ugtk2::exit(0);

my ($mdv_update_pid, $checker_pid);

# Signal management 
sub harvester {
    my ($_signame, $_clean) = @_;
    my ($childpid, @pids);
    my $mdvupdate_returned;
    do {
        $childpid = waitpid(-1, &WNOHANG);
        if ($mdv_update_pid && $mdv_update_pid == $childpid) {
            undef $mdv_update_pid;
            $mdvupdate_returned = 1;
        } elsif ($checker_pid && $checker_pid == $childpid) {
            undef $checker_pid;
            my $status = $? >> 8;
            my ($state) = grep { $_->{code} eq $status } values %comm_codes;
            if ($state) {
                logIt($state->{log});
                go2State($state->{status});
            }
        }
        push @pids, $childpid;
    } while $childpid > 0;
    Glib::Timeout->add(200, sub { silentCheck(); 0 }) if $mdvupdate_returned;
    return @pids;
}

sub fork_exec {
    my $pid = run_program::raw({ detach => 1 }, @_);
    return $pid;
}


sub configNetwork() { logIt(N_("Launching drakconnect\n")); fork_exec("/usr/sbin/drakconnect") }

sub restart_applet() {
    logIt(N_("Mandriva Online seems to be reinstalled, reloading applet ...."));
    exec($0, '--auto-update');
}

sub installUpdates() {
    my $binfile = $0;
    return if $mdv_update_pid;
    my $oldmd5 = $release <= 10.2 ? mdkonline::md5file($binfile) : common::md5file($binfile);
    logIt(N_("Launching MandrivaUpdate\n"));
    $mdv_update_pid = fork_exec('MandrivaUpdate', '--no-media-update', '--no-confirmation', '--no-splash');
    my $newmd5 = $release <= 10.2 ? mdkonline::md5file($binfile) : common::md5file($binfile);
    restart_applet() if $newmd5 ne $oldmd5;
    silentCheck(); gtkflush();
}

sub silentCheck() {
    return if $mdv_update_pid || $checker_pid;
    logIt(N_("Computing new updates...\n"));
    logIt(N_("Connecting to") . "  ...\n"); # i18n bug to fix in cooker
    my $w = $::main_window ? $::main_window->window : undef;
    gtkset_mousecursor_wait($w);
    gtkflush(); go2State('busy'); gtkflush();
    gtkset_mousecursor_normal($w);

    # are there any updates ?

    $checker_pid = fork();
    if (defined $checker_pid) {
        return if $checker_pid; # parent

        # immediate exit, else forked gtk+ object destructors will badly catch up parent applet
        my $_safe = before_leaving { POSIX::_exit(0) };

        # be nice with other processes:
        setpriority(0, $$, 7);  # 0 is PRIO_PROCESS

        my $exit = sub {
            my ($state) = @_;
            POSIX::_exit($comm_codes{$state}{code});
        };
        my $will_not_update_media;
        require urpm;
        require urpm::lock;
        # so that get_inactive_backport_media() doesn't vivify $urpm->{media}:
        require Rpmdrake::open_db;
        my $urpm = Rpmdrake::open_db::fast_open_urpmi_db();
        {
            local $urpm->{fatal} = sub {
                print "Fatal: @_\n";
                $will_not_update_media = 1;
            };
            local $urpm->{error} = $urpm->{fatal};

            urpm::lock::urpmi_db($urpm, 'exclusive', 1);
        }
        $exit->('locked') if $will_not_update_media;

        if (!run_program::raw({ sensitive_arguments => 1 }, 'urpmi.update', '--update')) {
            $exit->('error_updating') if $will_not_update_media;
        }

        # update inactive backport media:
        my @inactive_backport_media = Rpmdrake::open_db::get_inactive_backport_media($urpm);
        logIt("updating inactive backport media " . join(', ', @inactive_backport_media)) if @inactive_backport_media;
        run_program::run('urpmi.update', $_) foreach @inactive_backport_media;
        
        require urpm::select;
        require urpm::media;
        urpm::media::configure($urpm, update => 1);
        my @update_medias = grep { $_->{update} } @{$urpm->{media}};
        if (!@update_medias) {
            $exit->('no_update_medium');
        } elsif (!any { ! $_->{ignore} } @update_medias) {
            $exit->('no_enabled_medium');
        }

        if (my $db = urpm::db_open_or_die($urpm)) {
            my $requested = {};
            my $state = {};
            my $need_restart = urpm::select::resolve_dependencies(
                $urpm, $state, $requested,
                callback_choices => sub { 0 },
                priority_upgrade => $urpm->{options}{'priority-upgrade'},
                auto_select => 1,
            );
            my @requested_strict = map { scalar $_->fullname } @{$urpm->{depslist}}[keys %{$state->{selected}}];

            if ($need_restart || @requested_strict) { # FIXME: log first found pkgs?
                $exit->('updates');
            } else {
                $exit->('uptodate');
            }
        } else {
            $exit->('db_not_open');
        }
        $exit->('updates');
    } else {
        logIt("cannot fork: %s", "update checker ($!)");
        go2State('critical');
    }
}

sub okState() { logIt(N_("System is up-to-date\n")); go2State('okay') }


sub setup_cyclic_check() {
    $network_timeout = Glib::Timeout->add(2000, sub { checkNetwork(); 1 });
    $timeout = Glib::Timeout->add($config{UPDATE_FREQUENCY}*1000, sub {
           checkUpdates();
           1;
       });
}

sub getTime() {
    my $d = localtime();
    $d =~ s/\s+/_/g;
    $d;
}

sub setLastTime() {
    my $date = getTime();
    setVar($localfile, 'LASTCHECK', $date);
}

sub checkNetwork() {
    return if $checker_pid;
    require network::tools;
    if (!network::tools::has_network_connection()) {
        # do not notify if already done:
        return if member($state_global, qw(disconnected));
	logIt(N_("Checking Network: seems disabled\n"));
	go2State('disconnected');
    } elsif (member($state_global, qw(disconnected))) {
	silentCheck(); #- state has changed, update
    }
}

sub checkUpdates() {
    member($state_global, qw(disconnected)) or silentCheck();
}

sub go2State {
    my $state = shift;
    $menu->destroy if $menu;
    $menu = setState($state);
    $state_global = $state;
}

sub shouldStart() {
    my %p = getVarsFromSh($localfile);
    to_bool($p{AUTOSTART} ne 'FALSE');
}

sub setState {
    my ($state) = @_;
    my $checkme;
    state $previous_state;
    my $arr = $state{$state}{menu};
    my $tmp = gtkcreate_pixbuf($state{$state}{colour}[0]);
    $icon->set_from_pixbuf($tmp);
    $icon->set_tooltip(formatAlaTeX(translate($state{$state}{tt}[0])));
    my @invisible_states = qw(delayed okay);
    $icon->set_visible(!member($state, @invisible_states));

    # do not show icon while checking if previously hidden:
    $icon->set_visible(0) if $state eq 'busy' && member($previous_state, @invisible_states);

    $previous_state = $state;

    gtkflush(); # so that bubbles are displayed on right icon

    if ($state{$state}{tt}[0] && $icon->isa('Gtk2::StatusIcon') && !$state{$state}{do_not_use_bubble}) {
        my $bubble = Gtk2::Notify->new_with_status_icon(N("Warning"), formatAlaTeX(translate($state{$state}{tt}[0])) . "\n",
                                                        '/usr/share/icons/mdkonline.png', $icon);
        $bubble->add_action('clicked', N("Install updates"), \&installUpdates) if $state eq 'updates';
        $bubble->set_timeout(5000);
        eval { $bubble->show };
    }

    my $menu = Gtk2::Menu->new;
    foreach (@$arr) { 
	$menu->append(gtksignal_connect(gtkshow(Gtk2::MenuItem->new_with_label($actions{$_}{name})), activate => $actions{$_}{launch}));
    }
    $menu->append(gtkshow(Gtk2::SeparatorMenuItem->new));
    $menu->append(gtksignal_connect(gtkshow(Gtk2::MenuItem->new_with_label(N("About..."))), activate => sub {
                                        my $ver = 1; # automatically set from spec file
                                        my $url = $online_site;
                                        $url =~ s/^https:/http:/;
                                        my $w = gtknew('AboutDialog', name => N("Mandriva Online %s", $ver),
                                                       copyright => N("Copyright (C) %s by Mandriva", '2001-2008'),
                                                       license => join('', cat_('/usr/share/common-licenses/GPL')),
                                                       icon => '/usr/share/icons/mini/mdkonline.png',
                                                       comments => N("Mandriva Online gives access to Mandriva web services."),
                                                       website => $url,
                                                       website_label => N("Online WebSite"),
                                                       authors => 'Thierry Vignaud <vignaud@mandriva.com>',
                                                       artists => 'Hélène Durosini',
                                                       translator_credits =>
                                                         #-PO: put here name(s) and email(s) of translator(s) (eg: "John Smith <jsmith@nowhere.com>")
                                                         N("_: Translator(s) name(s) & email(s)\n"),
                                                       transient_for => $::main_window, modal => 1, position_policy => 'center-on-parent',
                                                   );

                                        $w->show_all;
                                        $w->run;
                                        return 1;

                                    }));
    $menu->append(gtksignal_connect(gtkset_active($checkme = Gtk2::CheckMenuItem->new_with_label(N("Always launch on startup")), shouldStart()), toggled => sub { setAutoStart(uc(bool2text($checkme->get_active))) }));
    $checkme->show;
    $menu->append(gtksignal_connect(gtkshow(Gtk2::MenuItem->new_with_label(N("Quit"))), activate => sub { mainQuit() }));
    $menu;

}
sub logIt {
    my $log = shift;
    log::explanations($log);
}

sub setVar {
    my ($file, $var, $st) = @_;
    my %s = getVarsFromSh($file);
    $s{$var} = $st;
    setVarsInSh($file, \%s);
}

sub setAutoStart {
    my $state = shift;
    my $date = getTime();
    if (-f $localfile) {
	setVar($localfile, 'AUTOSTART', $state);
    } else { output_p $localfile, 
	       qq(AUTOSTART=$state
LASTCHECK=$date
);
	 }
}

sub mainQuit() {
#    setAutoStart('FALSE');
    Glib::Source->remove($timeout) if $timeout;
    Glib::Source->remove($network_timeout) if $network_timeout;
    Gtk2->main_quit;
}