#!/usr/bin/env perl

use strict;
use warnings;

{
    package Server;
    use POE qw/Component::Server::HTTP/;
    use base qw/Class::Accessor::Fast/;

    use Win32::OLE;

    sub new {
        my $self = shift->SUPER::new( @_ > 1 ? {@_} : $_[0] );
    }

    sub run {
        my $self = shift;

        POE::Session->create(
            object_states => [
                $self => [qw/_start/],
            ],
        );
        POE::Kernel->run;
    }

    sub _start {
        my ($self, $kernel) = @_[OBJECT, KERNEL];

        $kernel->alias_set('main');
        POE::Component::Server::HTTP->new(
            Port           => $self->{port},
            ContentHandler => {
                '/key/' => \&handle_key,
                '/'     => \&handle_root,
            },
        );
    }

    sub handle_root {
        my ($req, $res) = @_;
        $res->code(200);

        open my $fh, '<', 'psp.swf';
        my $swf = do { local $/; <$fh> };
        close $fh;

        $res->content_type('application/x-shockwave-flash');
        $res->content($swf);
        return 200;
    }

    sub handle_key {
        my ($req, $res) = @_;
        $res->code(200);

        my $app = Win32::OLE->GetActiveObject('PowerPoint.Application');
        unless (defined $app) {
            $app = Win32::OLE->new('PowerPoint.Application')
                or die Win32::OLE->LastError;
        }

        my ($key) = $req->uri =~ m!key/(\d+)!;
        my $view = $app->ActivePresentation->SlideShowSettings->Run->View or die Win32::OLE->LastError;

        if ($key eq '37') {
            $view->Previous;
        }
        elsif ($key eq '38') {
        }
        elsif ($key eq '39') {
            $view->Next;
        }
        elsif ($key eq '40') {
        }

        $res->code(200);
        $res->content( $view->CurrentShowPosition );
    }
}

my $server = new Server->new( port => 80 );
$server->run;