#!/usr/bin/perl

use strict;
use warnings;

use POE;
use LWP::Simple;
use File::Copy;
use Net::SMTP;
use POSIX qw(strftime);

$|++;

my $smtp = Net::SMTP->new('localhost');
my $host = qx { hostname --short };

my $lb;
if ($host eq 'www0') {
        $lb = '10.0.0.1';
} else {
        $lb = '10.0.1.1';
}

POE::Session->create(
                inline_states => {
                        _start          => \&start,
                        check           => \&check,
                        get_pic         => \&get_pic,
                        move_pic        => \&move_pic,
                        mail            => \&mail,
                        _stop           => \&stop,
                },
);

$poe_kernel->run;
exit 0;

sub start {
        my $kernel = $_[KERNEL];

        $kernel->yield('check');
}

sub check {
        my $kernel = $_[KERNEL];

        my $servermon = qx { nc -w 2 $lb 5000};

        if ($servermon eq $host) {;
                print "Check\n";
                $kernel->delay(move_pic => 30);
                $kernel->delay(get_pic => 10);
        } else {
                $kernel->delay(check => 120);
        }
}
sub get_pic {

        my ($kernel, $heap)  = @_[KERNEL, HEAP];

        print "get_pic\n";

        my $image_link   = 'http://webcam/hugesize.jpg';
        my $temp_filename = '30sec.jpg';
        my $filename = 'current.jpg';

        unless (mirror($image_link,$temp_filename)) {
                print "Sending mail\n";
                $kernel->yield('mail');
        }

        move($temp_filename,$filename);

        $kernel->yield('check');
}

sub move_pic {
        my ($kernel, $heap)  = @_[KERNEL, HEAP];

        print "move_pic\n";

        my $old_filename  = 'current.jpg';
        my $new_filename  = time.'.jpg';

        if (-f $old_filename) {
                copy($old_filename,$new_filename);
        }

        $kernel->yield('check');
}

sub mail {
        my ($kernel, $heap)  = @_[KERNEL, HEAP];

        my $failTime = strftime "%H:%M:%S", localtime;
        my $todayDate = strftime "%m/%d/%y", localtime;


        $smtp->mail('wwwlb\@localhost');
        $smtp->to('me\@locahost');
        $smtp->data();


        $smtp->datasend("To: me\@localhost\n");
        $smtp->datasend("From: www0\@localhost\n");
        $smtp->datasend("Subject: WebCam Died...");
        $smtp->datasend("\n\n");


        $smtp->datasend("Webcam failed will retry in one minute.");
        $smtp->datasend("\n\nDate: ".$todayDate."\nTime: ".$failTime."
+\n\n");
        $smtp->dataend();
        $smtp->quit;

        $kernel->yield(get_pic => 60);
}

sub stop {
        print "That's All\n";
}
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