#!/usr/bin/perl
# 
# This prints JSON formated data reporting the status of an Anvil! system and it's member hosts.
# 

use strict;
use warnings;
use Anvil::Tools;
use Data::Dumper;
use JSON;

$| = 1;

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

my $anvil = Anvil::Tools->new();

$anvil->Get->switches;

$anvil->Database->connect;
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, secure => 0, key => "log_0132"});
if (not $anvil->data->{sys}{database}{connections})
{
	# No databases, exit.
	$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, 'print' => 1, priority => "err", key => "error_0003"});
	$anvil->nice_exit({exit_code => 1});
}

# Read in any CGI variables, if needed.
$anvil->Get->cgi();

$anvil->Database->get_hosts();
$anvil->Database->get_anvils();

print $anvil->Template->get({file => "shared.html", name => "json_headers", show_name => 0})."\n";

my $hash = {};
my $anvil_uuid = $anvil->data->{cgi}{anvil_uuid}{value};
if ((not $anvil_uuid) or (not exists $anvil->data->{anvils}{anvil_uuid}{$anvil_uuid}))
{
	$anvil->data->{anvil_status}{anvil_name} = "!!invalid!anvil_uuid!!";
}
else
{
	$anvil->data->{anvil_status}{anvil_name}        = $anvil->data->{anvils}{anvil_uuid}{$anvil_uuid}{anvil_name};
	$anvil->data->{anvil_status}{anvil_description} = $anvil->data->{anvils}{anvil_uuid}{$anvil_uuid}{anvil_description};
	$anvil->data->{anvil_status}{timestamp}         = time;
	
	my $node1_uuid   = $anvil->data->{anvils}{anvil_uuid}{$anvil_uuid}{anvil_node1_host_uuid};
	my $node2_uuid   = $anvil->data->{anvils}{anvil_uuid}{$anvil_uuid}{anvil_node2_host_uuid};
	my $node2_status = $anvil->data->{hosts}{host_uuid}{$node2_uuid}{host_status} eq "online" ? 1 : 0;
	
	$anvil->data->{anvil_status}{nodes}{node1}{host_name}   = $anvil->data->{hosts}{host_uuid}{$node1_uuid}{host_name};
	$anvil->data->{anvil_status}{nodes}{node1}{host_uuid}   = $node1_uuid;
	$anvil->data->{anvil_status}{nodes}{node1}{host_status} = $anvil->data->{hosts}{host_uuid}{$node1_uuid}{host_status} eq "online" ? 1 : 0;
	$anvil->data->{anvil_status}{nodes}{node2}{host_name}   = $anvil->data->{hosts}{host_uuid}{$node2_uuid}{host_name};
	$anvil->data->{anvil_status}{nodes}{node2}{host_uuid}   = $node2_uuid;
	$anvil->data->{anvil_status}{nodes}{node2}{host_status} = $anvil->data->{hosts}{host_uuid}{$node2_uuid}{host_status} eq "online" ? 1 : 0;
	
	$hash->{timestamp} = time;
	$hash->{nodes}     = [];
	push @{$hash->{nodes}}, { on => $anvil->data->{anvil_status}{nodes}{node1}{host_status} };
	push @{$hash->{nodes}}, { on => $anvil->data->{anvil_status}{nodes}{node2}{host_status} };
}

print JSON->new->utf8->encode($hash)."\n";