#!/usr/bin/env php
<?php
/**
 * Observium
 *
 *   This file is part of Observium.
 *
 * @package        observium
 * @subpackage     scripts
 * @copyright  (C) Adam Armstrong
 *
 */

chdir(dirname($argv[0]) . '/..');

$options = getopt("da");
if (isset($options['d'])) {
    array_shift($argv);
} // for compatibility
if (isset($options['a'])) {
    array_shift($argv);
} // for compatibility

include_once("includes/observium.inc.php");

//$config['rancid_version'] = '3.7.1'; // test

// Rancid version configured manually
$rancid_config_version = isset($config['rancid_version']) ? ltrim($config['rancid_version'], 'vV') : 0;
// Detect locally installed rancid version
if ($rancid_cmd = external_exec('which rancid-run')) {
    $rancid_cmd_version = explode(' ', external_exec($rancid_cmd . ' -V'))[1];
} else {
    // Dummy version for compare
    $rancid_cmd_version = 0;
}
$rancid_version = version_compare($rancid_cmd_version, $rancid_config_version, '>') ? $rancid_cmd_version : $rancid_config_version;
$rancid_version = $rancid_version ? trim_number($rancid_version) : '3'; // set default version to 3+
$rancid_version_major = explode('.', $rancid_version)[0];

// Set delimiter
$delimiter = $rancid_version_major < 3 ? ':' : ';';

$os_maps = [];
// Add user defined os maps first
if (is_array($config['rancid']['os_map'])) {
    foreach ($config['rancid']['os_map'] as $os => $name) {
        $os_maps[$os][] = [ 'name' => $name ];
    }
}

// OS maps from definitions
foreach ($config['os'] as $os => $entry) {
    if (!isset($entry['rancid'])) {
        continue;
    }

    $os_maps[$os] = $entry['rancid'];
}
print_debug_vars($os_maps, 1);

?>
# RANCID router.db autogenerated by <?php echo realpath($_SERVER['SCRIPT_FILENAME']) . PHP_EOL; ?>
# RANCID version <?php echo $rancid_version . PHP_EOL; ?>
# Do not edit this file directly!

<?php

// Limit devices with rancid supported os
$where_array   = [];
if (!isset($options['a'])) {
    $where_array[] = generate_query_values($config['poller_id'], 'poller_id');
}
$where_array[] = generate_query_values(array_keys($os_maps), 'os');
$sql           = "SELECT `hostname`, `os`, `version`, `hardware`, `disabled`, `status` FROM `devices` " . generate_where_clause($where_array) . " ORDER BY `hostname`";
foreach (dbFetchRows($sql) as $device) {
    // blacklisted hosts
    if (isset($config['rancid_host_blacklist']) &&
        (in_array($device['hostname'], (array)$config['rancid_host_blacklist'], TRUE) ||
         in_array($device['ip'], (array)$config['rancid_host_blacklist'], TRUE))) {
        continue;
    }

    // Up for not disabled and available devices
    $rancid_status = ($device['disabled'] || !$device['status']) ? "down" : "up";
    //print_vars($device);

    // New defs
    foreach ($os_maps[$device['os']] as $rancid_map) {
        // Need check hardware for map
        if (isset($rancid_map['hardware']) &&
            !preg_match($rancid_map['hardware'], $device['hardware'])) {
            continue;
        }

        // Need check min os version
        if (isset($rancid_map['version_min']) &&
            version_compare($rancid_map['version_min'], $device['version'], '>')) {
            continue;
        }

        // Need check min rancid version
        if (isset($rancid_map['rancid_min']) &&
            version_compare(trim_number($rancid_map['rancid_min']), $rancid_version, '>')) {
            continue;
        }

        // All checks complete, write rancid entry and break loop
        echo($device['hostname'] . $delimiter . $rancid_map['name'] . $delimiter . $rancid_status . PHP_EOL);
        break;
    }
}

// EOF