package SrvMngr::Controller::Datetime;

#----------------------------------------------------------------------
# heading     : System
# description : Date and time
# navigation  : 4000 400

# routes : end
#------------------------------

use strict;
use warnings;
use Mojo::Base 'Mojolicious::Controller';

use Locale::gettext;
use SrvMngr::I18N;
use SrvMngr qw(theme_list init_session);

use esmith::FormMagick;
use esmith::util;

our $cdb = esmith::ConfigDB->open() || die "Couldn't open config db";

sub main {
    my $c = shift;
    $c->app->log->info($c->log_req);

    my %dat_datas = ();
    my $title = $c->l('dat_FORM_TITLE');
    my $modul = $c->l('dat_INITIAL_DESC');


    $dat_datas{ntpstatus} = 'disabled';

    my $rec = $cdb->get('ntpd');
    if ($rec) {
        $dat_datas{'ntpserver'} = $rec->prop('NTPServer') || '';
        if ( $rec->prop('status') eq 'enabled' ) {
    	    $dat_datas{ntpstatus} = 'enabled'
    		unless ($rec->prop('SyncToHWClockSupported') || 'yes') eq 'yes' and $dat_datas{ntpserver} =~ m#^\s*$#;
	}
    }

    ($dat_datas{weekday}, $dat_datas{monthname}, 
	$dat_datas{month}, $dat_datas{day}, $dat_datas{year},
	$dat_datas{hour}, $dat_datas{minute}, $dat_datas{second},
	$dat_datas{ampm}) = split /\|/, 
                      `/bin/date '+%A|%B|%-m|%-d|%Y|%-I|%M|%S|%p'`;

    # get rid of trailing carriage return on last field
    chop ($dat_datas{ampm});

    $dat_datas{'now_string'} = esmith::FormMagick->gen_locale_date_string();

    $c->stash( title => $title, modul => $modul, dat_datas => \%dat_datas );
    $c->render('datetime');
};


sub do_update {

    my $c = shift;

    my %dat_datas = ();
    my $title = $c->l('dat_FORM_TITLE');
    my $modul = $c->l('dat_INITIAL_DESC');
    my $result;
    my $success;

    my $old_ntpstatus = $c->param('Old_ntpstatus');
    $dat_datas{ntpstatus} = $c->param('Ntpstatus');


    if ( $dat_datas{ntpstatus} ne $old_ntpstatus) {

        if ( $dat_datas{ntpstatus} eq 'disabled' ) {
    	    ($dat_datas{weekday},
    	    $dat_datas{monthname},
    	    $dat_datas{month},
	    $dat_datas{day},
    	    $dat_datas{year},
    	    $dat_datas{hour},
	    $dat_datas{minute},
    	    $dat_datas{second},
    	    $dat_datas{ampm}) = split /\|/, 
                      `/bin/date '+%A|%B|%-m|%-d|%Y|%-I|%M|%S|%p'`;

	    # get rid of trailing carriage return on last field
	    chop ($dat_datas{ampm});

	} else {

	    $dat_datas{ntpserver} = ($cdb->get_prop('ntpd','NTPServer')) || '';
	}

	$dat_datas{now_string} = esmith::FormMagick->gen_locale_date_string();
	
	$c->stash( title => $title, modul => $modul, dat_datas => \%dat_datas );
	return $c->render('datetime');
    }

    if ( $dat_datas{ntpstatus} eq 'enabled' ) {

    # update ntpserver

        $dat_datas{ntpserver} = $c->param('Ntpserver') || '';

        if ( $dat_datas{ntpserver} eq "pool.ntp.org" ) {
            $result .= $c->l('dat_INVALID_NTP_ADDR');
        } elsif ( $dat_datas{ntpserver} =~ /^([a-zA-Z0-9\.\-]+)$/ ) {
            $dat_datas{ntpserver} = $1;
#        } elsif ( $dat_datas{ntpserver} =~ /^\s*$/ ) {
#            $dat_datas{ntpserver} = "";
        } else {
            $result .= $c->l('dat_INVALID_NTP_ADDR');
        }

	if ( ! $result ) {
	    $success = update_ntpserver( $c, $dat_datas{ntpserver} );
	}

    } else {

    # set Locale time & clean ntpserver

	    #my $servername = ($c->param('ServerName') || 'WS');
	if ( ! $result ) {
	    $result = validate_change_datetime( $c );
	    if ( $result eq 'OK' ) {
		$success = $c->l('dat_UPDATING_CLOCK');
		$result = '';
		disable_ntp();
		$success .= '<br>'. $c->l('dat_SERVER_DISABLED_DESC');
	    }
	}
    }


    if ( $result ) {
	$c->stash( error => $result );
	$c->stash( title => $title, modul => $modul, dat_datas => \%dat_datas );
	return $c->render('datetime');
    }
    #$result = $c->l('dat_SUCCESS');

    my $message = "'Datetime' update DONE";
    $c->app->log->info($message);
    $c->flash( success => $success );

    $c->redirect_to('/datetime');
};


sub validate_change_datetime {

    my $c = shift;

    #--------------------------------------------------
    # Untaint parameters and check for validity
    #--------------------------------------------------

    my $timezone = $c->param ('Timezone');
    if ($timezone =~ /^([\w\-]+\/?[\w\-+]*)$/) {
        $timezone = $1;
    } else {
        $timezone = "US/Eastern";
    }

    my $month = $c->param ('Month');

    if ($month =~ /^(\d{1,2})$/) {
        $month = $1;
    } else {
        $month = "1";
    }
    if (($month < 1) || ($month > 12)) {
        return $c->l('dat_INVALID_MONTH')." $month. ". $c->l('dat_MONTH_BETWEEN_1_AND_12');
    }

    my $day = $c->param ('Day');

    if ($day =~ /^(\d{1,2})$/) {
        $day = $1;
    } else {
        $day = "1";
    }
    if (($day < 1) || ($day > 31)) {
	return $c->l('dat_INVALID_DAY')." $day. ". $c->l('dat_BETWEEN_1_AND_31');
    }

    my $year = $c->param ('Year');
    if ($year =~ /^(\d{4})$/) {
        $year = $1;
    } else {
        $year = "2000";
    }

    if (($year < 1900) || ($year > 2200)) {
	return $c->l('dat_INVALID_YEAR')." $year. ". $c->l('dat_FOUR_DIGIT_YEAR');
    }

    my $hour = $c->param ('Hour');
    if ($hour =~ /^(\d{1,2})$/) {
        $hour = $1;
    } else {
        $hour = "12";
    }
    if (($hour < 1) || ($hour > 12)) {
	return $c->l('dat_INVALID_HOUR')." $hour. ". $c->l('dat_BETWEEN_1_AND_12');
    }

    my $minute = $c->param ('Minute');
    if ($minute =~ /^(\d{1,2})$/) {
        $minute = $1;
    } else {
        $minute = "0";
    }

    if (($minute < 0) || ($minute > 59)) {
        return $c->l('datINVALID_MINUTE')." $minute. ".$c->l('dat_BETWEEN_0_AND_59');
    }
    
    my $second = $c->param ('Second');
    if ($second =~ /^(\d{1,2})$/) {
        $second = $1;
    } else {
        $second = "0";
    }

    if (($second < 0) || ($second > 59)) {
	return $c->l('dat_INVALID_SECOND')." $second. ". $c->l('dat_BETWEEN_0_AND_59');
    }

    my $ampm = $c->param ('Ampm');
    if ($ampm =~ /^(AM|PM)$/) {
        $ampm = $1;
    } else {
        $ampm = "AM";
    }

    # convert to 24 hour time

    $hour = $hour % 12;
    if ($ampm eq "PM") {
        $hour = $hour + 12;
    }

    #--------------------------------------------------
    # Store time zone in configuration database
    #--------------------------------------------------

    my $conf = esmith::ConfigDB->open();
    my $old = $conf->get('UnsavedChanges')->value;
    my $rec = $conf->get('TimeZone');
    unless ($rec) {
        $rec = $conf->new_record('TimeZone',undef);
    }
    $rec->set_value($timezone);
    $conf->get('UnsavedChanges')->set_value($old);

    #--------------------------------------------------
    # Signal event to change time zone, system time
    # and hardware clock
    #--------------------------------------------------

    my $newdate = sprintf "%02d%02d%02d%02d%04d.%02d",
            $month, $day, $hour, $minute, $year, $second;

    esmith::util::backgroundCommand(2, 
        "/sbin/e-smith/signal-event","timezone-update",$newdate);

    return 'OK';
}


sub update_ntpserver {

    my $c = shift;
    my $ntpserver = shift;
    
    my $msg;
        #------------------------------------------------------------
        # Looks good; go ahead and change the parameters.
        #------------------------------------------------------------

    my $old = $cdb->get('UnsavedChanges')->value;
    my $rec = $cdb->get('ntpd');
    if ($rec) {
        $rec->set_prop('status','enabled');
        $rec->set_prop('NTPServer',$ntpserver);
    } else {
        $rec = $cdb->new_record( 'ntpd',
            { type=>'service', status=>'enabled', SyncToHWClockSupported => 'yes', NTPServer=>$ntpserver } );
    }
    $cdb->get('UnsavedChanges')->set_value($old);

    $msg = $c->l('dat_SETTINGS_CHANGED');

    if ( $ntpserver =~ /^\s*$/ ) {
        $rec->set_prop('status', ($rec->prop('SyncToHWClockSupported') || 'yes') eq 'yes' ? 'enabled' : 'disabled');
        $rec->set_prop('NTPServer', '');
        $msg = $c->l('dat_INVALID_NTP_SERVER') if ($rec->prop('SyncToHWClockSupported') || 'yes') ne 'yes';
    }

    esmith::util::backgroundCommand( 2, "/sbin/e-smith/signal-event", "timeserver-update" );

    return $msg;
}


sub disable_ntp {

    # make sure that the parameters are set for disabled

    my $old = $cdb->get('UnsavedChanges')->value;
    my $rec = $cdb->get('ntpd');

    if ($rec) {
        $rec->set_prop('status', ($rec->prop('SyncToHWClockSupported') || 'yes') eq 'yes' ? 'enabled' : 'disabled');
        $rec->set_prop('NTPServer','');
    } else {
        $rec = $cdb->new_record('ntpd', 
            {type=>'service', status=>'enabled', SyncToHWClockSupported => 'yes', NTPServer=>''});
    }
    
    $cdb->get('UnsavedChanges')->set_value($old);

}


sub getTimezone {

    #--------------------------------------------------
    # Figure out time zone by looking first looking at
    # the configuration database value of TimeZone.
    # If that is not defined, try and get it from /etc/localtime.
    # If that doesn't work, default to US/Eastern.
    #--------------------------------------------------

    my $localtime;
    my $timezonedefault = "US/Eastern";

    if (defined $cdb->get('TimeZone')) {
         $timezonedefault = $cdb->get('TimeZone')->value;
    } else {
        if (defined ($localtime = readlink '/etc/localtime')) {
            my $pos = index $localtime, 'zoneinfo/';
            if ( $pos > -1 ) {
                 $timezonedefault = substr $localtime, ($pos + 9);
            }
        }
    }
    return $timezonedefault;
}


sub getZone_list {

    my $c = shift;

    #--------------------------------------------------
    # Get a sorted list of time zones
    #--------------------------------------------------

    $ENV{BASH_ENV} = '';
    if (! open (ZONES, "cd /usr/share/zoneinfo; /usr/bin/find . -type f -or -type l | /bin/grep '^./[A-Z]' |"))
    {
        warn ( $c->l('COULD_NOT_OPEN_TZ_FILE').$!.'.' );
        return undef;
    }
    my $zone;    
    my @zones = ();

    while (defined ($zone = <ZONES>))
    {
        chop ($zone);
        $zone =~ s/^.\///;
        push @zones, $zone;
    }
    close ZONES;
    my @zt = sort @zones;
    return \@zt;
}


sub getMonth_list {

    my $c = shift;
    return  [[ $c->l('dat_JANUARY') => '1'],
            [ $c->l('dat_FEBRUARY') => '2'],
            [ $c->l('dat_MARCH') => '3'],
            [ $c->l('dat_APRIL') => '4'],
            [ $c->l('dat_MAY') => '5'],
            [ $c->l('dat_JUNE') => '6'],
            [ $c->l('dat_JULY') => '7'],
            [ $c->l('dat_AUGUST') => '8'],
            [ $c->l('dat_SEPTEMBER') => '9'],
            [ $c->l('dat_OCTOBER') => '10'],
            [ $c->l('dat_NOVEMBER') => '11'],
            [ $c->l('dat_DECEMBER') => '12']];
}


1;