<?php

// Pandora FMS - http://pandorafms.com
// ==================================================
// Copyright (c) 2005-2023 Pandora FMS
// Please see http://pandorafms.org for full contribution list
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; version 2
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
global $config;

enterprise_include_once('include/functions_policies.php');
require_once $config['homedir'].'/include/functions_users.php';

$searchAgents = check_acl($config['id_user'], 0, 'AR');

$selectNameUp = '';
$selectNameDown = '';
$selectDescriptionUp = '';
$selectDescriptionDown = '';
$selectOsUp = '';
$selectOsDown = '';
$selectIntervalUp = '';
$selectIntervalDown = '';
$selectGroupUp = '';
$selectGroupDown = '';
$selectLastContactUp = '';
$selectLastContactDown = '';

switch ($sortField) {
    case 'name':
        switch ($sort) {
            case 'up':
                $selectNameUp = $selected;
                $order = [
                    'field' => 'nombre',
                    'order' => 'ASC',
                ];
            break;

            case 'down':
                $selectNameDown = $selected;
                $order = [
                    'field' => 'nombre',
                    'order' => 'DESC',
                ];
            break;
        }
    break;

    case 'comentarios':
        switch ($sort) {
            case 'up':
                $selectDescriptionUp = $selected;
                $order = [
                    'field' => 'comentarios',
                    'order' => 'ASC',
                ];
            break;

            case 'down':
                $selectDescriptionDown = $selected;
                $order = [
                    'field' => 'comentarios',
                    'order' => 'DESC',
                ];
            break;
        }
    break;

    case 'os':
        switch ($sort) {
            case 'up':
                $selectOsUp = $selected;
                $order = [
                    'field' => 'id_os',
                    'order' => 'ASC',
                ];
            break;

            case 'down':
                $selectOsDown = $selected;
                $order = [
                    'field' => 'id_os',
                    'order' => 'DESC',
                ];
            break;
        }
    break;

    case 'interval':
        switch ($sort) {
            case 'up':
                $selectIntervalUp = $selected;
                $order = [
                    'field' => 'intervalo',
                    'order' => 'ASC',
                ];
            break;

            case 'down':
                $selectIntervalDown = $selected;
                $order = [
                    'field' => 'intervalo',
                    'order' => 'DESC',
                ];
            break;
        }
    break;

    case 'group':
        switch ($sort) {
            case 'up':
                $selectGroupUp = $selected;
                $order = [
                    'field' => 'id_grupo',
                    'order' => 'ASC',
                ];
            break;

            case 'down':
                $selectGroupDown = $selected;
                $order = [
                    'field' => 'id_grupo',
                    'order' => 'DESC',
                ];
            break;
        }
    break;

    case 'last_contact':
        switch ($sort) {
            case 'up':
                $selectLastContactUp = $selected;
                $order = [
                    'field' => 'ultimo_contacto',
                    'order' => 'ASC',
                ];
            break;

            case 'down':
                $selectLastContactDown = $selected;
                $order = [
                    'field' => 'ultimo_contacto',
                    'order' => 'DESC',
                ];
            break;
        }
    break;

    default:
        $selectNameUp = $selected;
        $selectNameDown = '';
        $selectDescriptionUp = '';
        $selectDescriptionDown = '';
        $selectOsUp = '';
        $selectOsDown = '';
        $selectIntervalUp = '';
        $selectIntervalDown = '';
        $selectGroupUp = '';
        $selectGroupDown = '';
        $selectLastContactUp = '';
        $selectLastContactDown = '';
        $order = [
            'field' => 'nombre',
            'order' => 'ASC',
        ];
    break;
}

$totalAgents = 0;

$agents = false;
if ($searchAgents) {
    $userGroups = users_get_groups($config['id_user'], 'AR', false);
    $id_userGroups = array_keys($userGroups);

    $has_secondary = enterprise_hook('agents_is_using_secondary_groups');

    $sql = "SELECT DISTINCT taddress_agent.id_agent FROM taddress
		INNER JOIN taddress_agent ON
		taddress.id_a = taddress_agent.id_a
		WHERE taddress.ip LIKE '%$stringSearchSQL%'";

        $id = db_get_all_rows_sql($sql);
    if ($id != '') {
        $aux = $id[0]['id_agent'];
        $search_sql = " t1.nombre LIKE '%%cd ".$stringSearchSQL."%%' OR
            t2.nombre LIKE '%%".$stringSearchSQL."%%' OR
            t1.alias LIKE '%%".$stringSearchSQL."%%' OR
            t1.comentarios LIKE '%%".$stringSearchSQL."%%' OR
            t1.id_agente = $aux";

        $idCount = count($id);

        if ($idCount >= 2) {
            for ($i = 1; $i < $idCount; $i++) {
                $aux = $id[$i]['id_agent'];
                $search_sql .= " OR t1.id_agente = $aux";
            }
        }
    } else {
        $search_sql = " t1.nombre LIKE '%%".$stringSearchSQL."%%' OR
            t2.nombre LIKE '%%".$stringSearchSQL."%%' OR
            t1.direccion LIKE '%%".$stringSearchSQL."%%' OR
            t1.comentarios LIKE '%%".$stringSearchSQL."%%' OR
            t1.alias LIKE '%%".$stringSearchSQL."%%'";
    }

    if ($has_secondary === true) {
        $search_sql .= " OR (tasg.id_group IS NOT NULL AND
            tasg.id_group IN (SELECT id_grupo FROM tgrupo WHERE nombre LIKE '%%".$stringSearchSQL."%%'))";
    }

    $sql = "
        FROM tagente t1 LEFT JOIN tagent_secondary_group tasg
            ON t1.id_agente = tasg.id_agent
			INNER JOIN tgrupo t2
				ON t2.id_grupo = t1.id_grupo
		WHERE (
				1 = (
					SELECT is_admin
					FROM tusuario
					WHERE id_user = '".$config['id_user']."'
				)
				OR (
                    t1.id_grupo IN (".implode(',', $id_userGroups).')
                    OR tasg.id_group IN ('.implode(',', $id_userGroups).")
                )
                OR 0 IN (
					SELECT id_grupo
					FROM tusuario_perfil
					WHERE id_usuario = '".$config['id_user']."'
						AND id_perfil IN (
							SELECT id_perfil
							FROM tperfil WHERE agent_view = 1
						)
					)
			)
			AND (
				".$search_sql.'
			)
    ';

    $select = 'SELECT DISTINCT(t1.id_agente), t1.ultimo_contacto, t1.nombre, t1.comentarios, t1.id_os, t1.intervalo, t1.id_grupo, t1.disabled, t1.alias, t1.quiet';
    if ($only_count) {
        $limit = ' ORDER BY '.$order['field'].' '.$order['order'].' LIMIT '.$config['block_size'].' OFFSET 0';
    } else {
        $limit = ' ORDER BY '.$order['field'].' '.$order['order'].' LIMIT '.$config['block_size'].' OFFSET '.get_parameter('offset', 0);
    }

    $query = $select.$sql;

    $query .= $limit;

    $agents = db_process_sql($query);
    if (empty($agents)) {
        $agents = [];
    }

    $count_agents_main = 0;
    if ($only_count) {
        $count_agents_main = count($agents);
    }

    if ($agents !== false) {
        $totalAgents = db_get_value_sql(
            'SELECT COUNT(DISTINCT id_agente) AS agent_count '.$sql
        );
    }
}