<?php
/**
 * Observium
 *
 *   This file is part of Observium.
 *
 * @package        observium
 * @subpackage     web
 * @copyright  (C) 2006-2013 Adam Armstrong, (C) 2013-2023 Observium Limited
 *
 */

/**
 * Display FDB table.
 *
 * @param array $vars
 *
 * @return none
 *
 */
function print_fdbtable($vars)
{
    //r($vars);
    $entries = get_fdbtable_array($vars);

    if (!$entries['count']) {
        // There have been no entries returned. Print the warning.
        print_warning('<h4>No FDB entries found!</h4>');
        return;
    }

    $list = ['device' => FALSE, 'port' => FALSE];


    if (!isset($vars['device']) || is_array($vars['device']) || empty($vars['device']) || $vars['page'] === 'search') {
        $list['device'] = TRUE;
    }
    if (!isset($vars['port']) || is_array($vars['port']) || empty($vars['port']) || $vars['page'] === 'search') {
        $list['port'] = TRUE;
    }

    //r($list);

    $string = generate_box_open();

    $string .= '<table class="table  table-striped table-hover table-condensed">' . PHP_EOL;

    $cols = [
      'device'    => 'Device',
      'mac'       => ['MAC Address', 'style="width: 160px;"'],
      'status'    => ['Status', 'style="width: 100px;"'],
      'port'      => 'Port',
      'trunk'     => 'Trunk/Type',
      'vlan_id'   => 'VLAN ID',
      'vlan_name' => 'VLAN NAME',
      'changed'   => ['Changed', 'style="width: 100px;"']
    ];

    if (!$list['device']) {
        unset($cols['device']);
    }
    if (!$list['port']) {
        unset($cols['port']);
    }

    if (!$short) {
        $string .= get_table_header($cols, $vars); // Currently, sorting is not available
    }

    //print_vars($entries['entries']);
    foreach ($entries['entries'] as $entry) {
        if ($entry['deleted']) {
            $port = [];

            $string .= '  <tr class="ignore">' . PHP_EOL;
        } else {
            $port = get_port_by_id_cache($entry['port_id']);

            $string .= '  <tr>' . PHP_EOL;
        }
        if ($list['device']) {
            $dev    = device_by_id_cache($entry['device_id']);
            $string .= '    <td class="entity" style="white-space: nowrap;">' . generate_device_link($dev) . '</td>' . PHP_EOL;
        }
        $string .= '    <td>' . generate_popup_link('mac', format_mac($entry['mac_address'])) . '</td>' . PHP_EOL;
        $string .= '    <td>' . $entry['fdb_status'] . '</td>' . PHP_EOL;
        if ($list['port']) {
            $string .= '    <td class="entity">' . generate_port_link_short($port) . ' ' . $port_error . '</td>' . PHP_EOL;
        }
        $string .= '    <td><span class="label">' . ($port['ifType'] === 'l2vlan' && empty($port['ifTrunk']) ? $port['human_type'] : $port['ifTrunk']) . '</span></td>' . PHP_EOL;
        $string .= '    <td>' . ($entry['vlan_vlan'] ? 'Vlan' . $entry['vlan_vlan'] : '') . '</td>' . PHP_EOL;
        $string .= '    <td>' . $entry['vlan_name'] . '</td>' . PHP_EOL;
        $string .= '    <td>' . generate_tooltip_link(NULL, format_uptime((get_time() - $entry['fdb_last_change']), 'short-2') . ' ago', format_unixtime($entry['fdb_last_change'])) . '</td>' . PHP_EOL;
        $string .= '  </tr>' . PHP_EOL;
    }

    $string .= '  </tbody>' . PHP_EOL;
    $string .= '</table>';

    $string .= generate_box_close();

    // Print pagination header
    if ($entries['pagination_html']) {
        $string = $entries['pagination_html'] . $string . $entries['pagination_html'];
    }

    // Print FDB table
    echo $string;
}

/**
 * Fetch FDB table array
 *
 * @param array $vars
 *
 * @return array
 *
 */
function get_fdbtable_array($vars)
{

    $array = [];

    // With pagination? (display page numbers in header)
    $array['pagination'] = (isset($vars['pagination']) && $vars['pagination']);
    pagination($vars, 0, TRUE); // Get default pagesize/pageno
    $array['pageno']   = $vars['pageno'];
    $array['pagesize'] = $vars['pagesize'];
    $start             = $array['pagesize'] * $array['pageno'] - $array['pagesize'];
    $pagesize          = $array['pagesize'];

    $params     = [];
    $where      = ' WHERE 1 ';
    $join_ports = FALSE;
    if (!isset($vars['deleted'])) {
        // Do not show deleted entries by default
        $vars['deleted'] = 0;
    }

    foreach ($vars as $var => $value) {

        // Skip empty variables (and array with empty first entry) when building query
        if ($value == '' || (is_array($value) && count($value) == 1 && $value[0] == '')) {
            continue;
        }

        switch ($var) {
            case 'device':
            case 'device_id':
                $where .= generate_query_values_and($value, 'F.device_id');
                break;
            case 'port':
            case 'port_id':
                $where .= generate_query_values_and($value, 'F.port_id');
                break;
            case 'interface':
            case 'port_name':
                $where      .= generate_query_values_and($value, 'I.ifDescr', 'LIKE%');
                $join_ports = TRUE;
                break;
            case 'trunk':
                if (get_var_true($value)) {
                    $where      .= " AND (`I`.`ifTrunk` IS NOT NULL AND `I`.`ifTrunk` != '')";
                    $join_ports = TRUE;
                } elseif (in_array($value, ['none', 'no', '0'])) {
                    $where      .= " AND (`I`.`ifTrunk` IS NULL OR `I`.`ifTrunk` = '')";
                    $join_ports = TRUE;
                }
                break;
            case 'vlan_id':
                $where .= generate_query_values_and($value, 'F.vlan_id');
                break;
            case 'vlan_name':
                $where .= generate_query_values_and($value, 'V.vlan_name');
                break;
            case 'address':
                if (str_contains_array($value, ['*', '?'])) {
                    $like = 'LIKE';
                } else {
                    $like = '%LIKE%';
                }
                $where .= generate_query_values_and(str_replace([':', ' ', '-', '.', '0x'], '', $value), 'F.mac_address', $like);
                break;
            case 'deleted':
                $where    .= ' AND `deleted` = ?';
                $params[] = $value;
        }
    }

    $sort_order = get_sort_order($vars);

    if (isset($vars['sort'])) {
        switch ($vars['sort']) {
            case "vlan_id":
                //$sort = " ORDER BY `V`.`vlan_vlan`";
                $sort = generate_query_sort('V.vlan_vlan', $sort_order);
                break;

            case "vlan_name":
                //$sort = " ORDER BY `V`.`vlan_name`";
                $sort = generate_query_sort('V.vlan_name', $sort_order);
                break;

            case "port":
                //$sort       = " ORDER BY `I`.`port_label`";
                $sort = generate_query_sort('I.port_label', $sort_order);
                $join_ports = TRUE;
                break;

            case "changed":
                //$sort = " ORDER BY `F`.`fdb_last_change`";
                $sort = generate_query_sort('F.fdb_last_change', $sort_order);
                break;

            case "mac":
            default:
                //$sort = " ORDER BY `mac_address`";
                $sort = generate_query_sort('mac_address', $sort_order);
        }
    }

    // Show FDB tables only for permitted ports
    $query_permitted = generate_query_permitted(['device', 'port'], ['device_table' => 'F', 'port_table' => 'F', 'port_null' => TRUE]);

    $query = 'FROM `vlans_fdb` AS F ';
    $query .= 'LEFT JOIN `vlans` as V ON F.`vlan_id` = V.`vlan_vlan` AND F.`device_id` = V.`device_id` ';
    if ($join_ports) {
        $query .= 'LEFT JOIN `ports` AS I ON I.`port_id` = F.`port_id` ';
    }
    $query       .= $where . $query_permitted;
    $query_count = 'SELECT COUNT(*) ' . $query;
    $query       = 'SELECT F.*, V.`vlan_vlan`, V.`vlan_name` ' . $query;
    $query       .= $sort;
    $query       .= " LIMIT $start,$pagesize";

    //r($query);
    //r($params);

    // Query addresses
    //$array['entries'] = dbFetchRows($query, $params, TRUE);
    $array['entries'] = dbFetchRows($query, $params);

    if ($array['pagination']) {
        // Query address count
        $array['count']           = dbFetchCell($query_count, $params);
        $array['pagination_html'] = pagination($vars, $array['count']);
    } else {
        $array['count'] = safe_count($array['entries']);
    }

    return $array;
}

// EOF