# =========================================================================r
#
# ZoneMinder Trendnet TV-IP400(W) IP Control Protocol Module, $Date: $, $Revision: $
# Copyright (C) 2008 Peter Hulst, Philip Coombes
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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.
#
# ==========================================================================
#
# This module contains the implementation of the Trendnet TV-IP400(W) IP camera control
# protocol. More information can be found on www.sfpeter.com. 
# With questions, suggestions or comments feel free to email me at phulst@sbcglobal.net.
# Special thanks to Armando Oritz warpkat@nointegrity.org for helping troubleshoot 
# some issues with the code. 
#
package ZoneMinder::Control::TVIP400;

use 5.006;
use strict;
use warnings;

require ZoneMinder::Base;
require ZoneMinder::Control;

our @ISA = qw(ZoneMinder::Control);

our $VERSION = $ZoneMinder::Base::VERSION;

# ==========================================================================
#
# Trendnet TV-IP400W Control Protocol
#
# ==========================================================================

use ZoneMinder::Debug qw(:all);
use ZoneMinder::Config qw(:all);

use Time::HiRes qw( usleep );

sub new
{
    my $class = shift;
    my $id = shift;
    my $self = ZoneMinder::Control->new( $id );
    bless( $self, $class );
    srand( time() );
    return $self;
}

our $AUTOLOAD;

sub AUTOLOAD
{
    my $self = shift;
    my $class = ref($self) || croak( "$self not object" );
    my $name = $AUTOLOAD;
    $name =~ s/.*://;
    if ( exists($self->{$name}) )
    {
        return( $self->{$name} );
    }
    Fatal( "Can't access $name member of object of class $class" );
}

sub open
{
    my $self = shift;

    $self->loadMonitor();

    use LWP::UserAgent;
    $self->{ua} = LWP::UserAgent->new;
    $self->{ua}->agent( "ZoneMinder Control Agent/".ZM_VERSION );

    $self->{state} = 'open';
}

sub close
{
    my $self = shift;
    $self->{state} = 'closed';
}

sub printMsg
{
    my $self = shift;
    my $msg = shift;
    my $msg_len = length($msg);

    Debug( $msg."[".$msg_len."]" );
}

sub sendCmd
{
    my $self = shift;
    my $cmd = shift;

    my $result = undef;

    printMsg( $cmd, "Tx" );

    my $req = HTTP::Request->new( POST=>"http://".$self->{Monitor}->{ControlAddress}."/PANTILTCONTROL.CGI" );
    $req->content($cmd);
    my $res = $self->{ua}->request($req);

    if ( $res->is_success )
    {
        $result = !undef;
    }
    else
    {
        Error( "Error check failed: '".$res->status_line()."'" );
    }

    return( $result );
}

sub move
{
    my $self = shift;
    my $dir = shift;
    my $panSteps = shift;
    my $tiltSteps = shift;

    my $cmd = "PanSingleMoveDegree=$panSteps&TiltSingleMoveDegree=$tiltSteps&PanTiltSingleMove=$dir";
    $self->sendCmd( $cmd );
}

sub moveRelUpLeft
{
    my $self = shift;
    Debug( "Move Up Left" );
    $self->move( 0, 1, 1 );
}

sub moveRelUp
{
    my $self = shift;
    Debug( "Move Up" );
    $self->move( 1, 1, 1 );
}

sub moveRelUpRight
{
    my $self = shift;
    Debug( "Move Up" );
    $self->move( 2, 1, 1 );
}

sub moveRelLeft
{
    my $self = shift;
    Debug( "Move Left" );
    $self->move( 3, 1, 1 );
}

sub moveRelRight
{
    my $self = shift;
    Debug( "Move Right" );
    $self->move( 5, 1, 1 );
}

sub moveRelDownLeft
{
    my $self = shift;
    Debug( "Move Down" );
    $self->move( 6, 1, 1 );
}

sub moveRelDown
{
    my $self = shift;
    Debug( "Move Down" );
    $self->move( 7, 1, 1 );
}

sub moveRelDownRight
{
    my $self = shift;
    Debug( "Move Down" );
    $self->move( 8, 1, 1 );
}

# moves the camera to center on the point that the user clicked on in the video image. 
# This isn't extremely accurate but good enough for most purposes 
sub moveMap
{
    # if the camera moves too much or too little, try increasing or decreasing this value
    my $f = 11;

    my $self = shift;
    my $params = shift;
    my $xcoord = $self->getParam( $params, 'xcoord' );
    my $ycoord = $self->getParam( $params, 'ycoord' );

    my $hor = $xcoord * 100 / $self->{Monitor}->{Width};
    my $ver = $ycoord * 100 / $self->{Monitor}->{Height};
   
    my $direction;
    my $horSteps;
    my $verSteps;
    if ($hor < 50 && $ver < 50) {
        # up left
        $horSteps = (50 - $hor) / $f;
        $verSteps = (50 - $ver) / $f;
        $direction = 0;
    } elsif ($hor >= 50 && $ver < 50) {
        # up right
        $horSteps = ($hor - 50) / $f;
        $verSteps = (50 - $ver) / $f;
        $direction = 2;
    } elsif ($hor < 50 && $ver >= 50) {
        # down left
        $horSteps = (50 - $hor) / $f;
        $verSteps = ($ver - 50) / $f;
        $direction = 6;
    } elsif ($hor >= 50 && $ver >= 50) {
        # down right
        $horSteps = ($hor - 50) / $f;
        $verSteps = ($ver - 50) / $f;
        $direction = 8;
    }
    my $v = int($verSteps + .5);
    my $h = int($horSteps + .5);
    Debug( "Move Map to $xcoord,$ycoord, hor=$h, ver=$v with direction $direction" );
    $self->move( $direction, $h, $v );
}

# this clear function works, but should probably be disabled because 
# it isn't possible to set presets yet. 
sub presetClear
{
    my $self = shift;
    my $params = shift;
    my $preset = $self->getParam( $params, 'preset' );
    Debug( "Clear Preset $preset" );
    my $cmd = "ClearPosition=$preset";
    $self->sendCmd( $cmd );
}

# not working yet
sub presetSet
{
    my $self = shift;
    my $params = shift;
    my $preset = $self->getParam( $params, 'preset' );
    Debug( "Set Preset $preset" );
    # TODO need to first get current position $horPos and $verPos
    #my $cmd = "PanTiltHorizontal=$horPos&PanTiltVertical=$verPos&SetName=$preset&SetPosition=$preset";
    #$self->sendCmd( $cmd );
}

sub presetGoto
{
    my $self = shift;
    my $params = shift;
    my $preset = $self->getParam( $params, 'preset' );
    Debug( "Goto Preset $preset" );
    my $cmd = "PanTiltPresetPositionMove=$preset";
    $self->sendCmd( $cmd );
}

sub presetHome
{
    my $self = shift;
    Debug( "Home Preset" );
    my $cmd = "PanTiltSingleMove=4";
    $self->sendCmd( $cmd );
}

1;
__END__
# Below is stub documentation for your module. You'd better edit it!

=head1 NAME

ZoneMinder::Database - Perl extension for blah blah blah

=head1 SYNOPSIS

  use ZoneMinder::Database;
  blah blah blah

=head1 DESCRIPTION

Stub documentation for ZoneMinder, created by h2xs. It looks like the
author of the extension was negligent enough to leave the stub
unedited.

Blah blah blah.

=head2 EXPORT

None by default.



=head1 SEE ALSO

Mention other useful documentation such as the documentation of
related modules or operating system documentation (such as man pages
in UNIX), or any relevant external documentation such as RFCs or
standards.

If you have a mailing list set up for your module, mention it here.

If you have a web site set up for your module, mention it here.

=head1 AUTHOR

Philip Coombes, E<lt>philip.coombes@zoneminder.comE<gt>

=head1 COPYRIGHT AND LICENSE

Copyright (C) 2005 by Philip Coombes

This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.8.3 or,
at your option, any later version of Perl 5 you may have available.


=cut