#!/usr/bin/perl
# 
# This is the master daemon that manages all periodically run processes on Striker dashboards and Anvil! 
# nodes.
# 
use strict;
use warnings;
use AN::Tools;

my $THIS_FILE           =  ($0 =~ /^.*\/(.*)$/)[0];
my $running_directory   =  ($0 =~ /^(.*?)\/$THIS_FILE$/)[0];
if (($running_directory =~ /^\./) && ($ENV{PWD}))
{
	$running_directory =~ s/^\./$ENV{PWD}/;
}

my $an = AN::Tools->new();
$an->Log->level(2);

$an->Storage->read_config({file => "/etc/striker/striker.conf"});

# Turn off buffering so that the pinwheel will display while waiting for the SSH call(s) to complete.
$| = 1;

report_network($an);

exit(0);

#############################################################################################################
# Functions                                                                                                 #
#############################################################################################################

# This reports the current network interface states, tracked by the MAC address.
sub report_network
{
	my ($an) = @_;
	
	# Write out the data in json format.
	my $network_json =  "{\"networks\":[\n";
	my $network_xml  =  "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
	   $network_xml  .= "<network>\n";
	   
	my $directory = $an->data->{path}{sysfs}{network_interfaces};
	local(*DIRECTORY);
	$an->Log->entry({source => $THIS_FILE, line => __LINE__, level => 3, key => "log_0018", variables => { directory => $directory }});
	opendir(DIRECTORY, $directory);
	while(my $file = readdir(DIRECTORY))
	{
		next if $file eq ".";
		next if $file eq "..";
		next if $file eq "lo";
		my $full_path = "$directory/$file";
		$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { full_path => $full_path }});
		if (-d $full_path)
		{
			# Pull out the data I want.
			my $interface   = $file;
			my $mac_address = $an->Storage->read_file({file => $full_path."/address"});
			my $link_state  = $an->Storage->read_file({file => $full_path."/carrier"});
			my $mtu         = $an->Storage->read_file({file => $full_path."/mtu"});
			my $duplex      = $an->Storage->read_file({file => $full_path."/duplex"});	# full or half?
			my $operational = $an->Storage->read_file({file => $full_path."/operstate"});	# up or down
			my $speed       = $link_state ? $an->Storage->read_file({file => $full_path."/speed"}) : 0;	# Mbps (ie: 1000 = Gbps), gives a very high number for unplugged link
			if ($speed > 100000)
			{
				# This is probably 0 now... Though someday >100 Gbps will be reasonable and 
				# we'll need to change this.
				$speed = 0;
			}
			$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 
				interface   => $interface, 
				mac_address => $mac_address, 
				link_state  => $link_state, 
				mtu         => $mtu, 
				duplex      => $duplex,
				operational => $operational,
				speed       => $speed,
			}});
			
			$network_json .= "	{ \"name\":\"$interface\", \"mac\":\"$mac_address\", \"link\":\"$link_state\", \"duplex\":\"$duplex\", \"state\":\"$operational\", \"speed\":\"$speed\" },\n";
			$network_xml .= "	<interface name=\"$interface\" mac=\"$mac_address\" link=\"$link_state\" duplex=\"$duplex\" state=\"$operational\" speed=\"$speed\" />\n";
		}
	}
	closedir(DIRECTORY);
	$network_json =~ s/,$//s;
	$network_json .= "]}\n";
	$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { network_json => $network_json }});
	
	$network_xml .= "</network>\n";
	$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { network_xml => $network_xml }});
	
	### TODO: Set the 'status/network.xml' and 'status/network.json' names into 'striker.conf'
	# Write the JSON file.
	my $output_json = $an->data->{path}{directories}{html}."/status/network.json";
	$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { output_xml => $output_json }});
	$an->Storage->write_file({
		file      => $output_json, 
		body      => $network_json, 
		overwrite => 1,
		mode      => "0644", 
		user      => "apache", 
		group     => "apache"
	});
	# Write the XML file.
	my $output_xml = $an->data->{path}{directories}{html}."/status/network.xml";
	$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { output_xml => $output_xml }});
	$an->Storage->write_file({
		file      => $output_xml, 
		body      => $network_xml, 
		overwrite => 1,
		mode      => "0644", 
		user      => "apache", 
		group     => "apache"
	});
	
	return(0);
}