<?php

/**
 * ---------------------------------------------------------------------
 *
 * GLPI - Gestionnaire Libre de Parc Informatique
 *
 * http://glpi-project.org
 *
 * @copyright 2015-2023 Teclib' and contributors.
 * @copyright 2003-2014 by the INDEPNET Development Team.
 * @licence   https://www.gnu.org/licenses/gpl-3.0.html
 *
 * ---------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GLPI.
 *
 * 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * ---------------------------------------------------------------------
 */

namespace Glpi;

use Ajax;
use CommonDBTM;
use CronTask;
use DBConnection;
use Document;
use Glpi\Application\View\TemplateRenderer;
use Html;
use Infocom;
use Session;
use Toolbox;

/**
 * Event Class
 **/
class Event extends CommonDBTM
{
    public static $rightname = 'logs';



    public static function getTypeName($nb = 0)
    {
        return _n('Log', 'Logs', $nb);
    }


    public function prepareInputForAdd($input)
    {
        global $CFG_GLPI;

        if (isset($input['level']) && ($input['level'] <= $CFG_GLPI["event_loglevel"])) {
            return $input;
        }
        return false;
    }

    public function post_addItem()
    {
       //only log in file, important events (connections and critical events; TODO : we need to add a general option to filter this in 9.1)
        if (isset($this->fields['level']) && $this->fields['level'] <= 3) {
            $message_type = "";
            if (isset($this->fields['type']) && $this->fields['type'] != 'system') {
                $message_type = "[" . $this->fields['type'] . " " . $this->fields['id'] . "] ";
            }

            $full_message = "[" . $this->fields['service'] . "] " .
                         $message_type .
                         $this->fields['level'] . ": " .
                         $this->fields['message'] . "\n";

            Toolbox::logInFile("event", $full_message);
        }
    }


    /**
     * Log an event.
     *
     * Log the event $event on the glpi_event table with all the others args, if
     * $level is above or equal to setting from configuration.
     *
     * @param $items_id
     * @param $type
     * @param $level
     * @param $service
     * @param $event
     **/
    public static function log($items_id, $type, $level, $service, $event)
    {
        global $DB;

        $input = ['items_id' => intval($items_id),
            'type'     => $DB->escape($type),
            'date'     => $_SESSION["glpi_currenttime"],
            'service'  => $DB->escape($service),
            'level'    => intval($level),
            'message'  => $DB->escape($event)
        ];
        $tmp = new self();
        return $tmp->add($input);
    }


    /**
     * Clean old event - Call by cron
     *
     * @param $day integer
     *
     * @return integer number of events deleted
     **/
    public static function cleanOld($day)
    {
        global $DB;

        $secs = $day * DAY_TIMESTAMP;

        $DB->delete(
            'glpi_events',
            [
                new \QueryExpression("UNIX_TIMESTAMP(date) < UNIX_TIMESTAMP()-$secs")
            ]
        );
        return $DB->affectedRows();
    }


    /**
     * Return arrays for function showEvent et lastEvent
     **/
    public static function logArray()
    {

        static $logItemtype = [];
        static $logService  = [];

        if (count($logItemtype)) {
            return [$logItemtype, $logService];
        }

        $logItemtype = ['system'      => __('System'),
            'devices'     => _n('Component', 'Components', Session::getPluralNumber()),
            'planning'    => __('Planning'),
            'reservation' => _n('Reservation', 'Reservations', Session::getPluralNumber()),
            'dropdown'    => _n('Dropdown', 'Dropdowns', Session::getPluralNumber()),
            'rules'       => _n('Rule', 'Rules', Session::getPluralNumber())
        ];

        $logService = ['inventory'    => _n('Asset', 'Assets', Session::getPluralNumber()),
            'tracking'     => _n('Ticket', 'Tickets', Session::getPluralNumber()),
            'maintain'     => __('Assistance'),
            'planning'     => __('Planning'),
            'tools'        => __('Tools'),
            'financial'    => __('Management'),
            'login'        => _n('Connection', 'Connections', 1),
            'setup'        => __('Setup'),
            'security'     => __('Security'),
            'reservation'  => _n('Reservation', 'Reservations', Session::getPluralNumber()),
            'cron'         => CronTask::getTypeName(Session::getPluralNumber()),
            'document'     => Document::getTypeName(Session::getPluralNumber()),
            'notification' => _n('Notification', 'Notifications', Session::getPluralNumber()),
            'plugin'       => _n('Plugin', 'Plugins', Session::getPluralNumber())
        ];

        return [$logItemtype, $logService];
    }


    /**
     * @param $type
     * @param $items_id
     **/
    public static function displayItemLogID($type, $items_id)
    {
        global $CFG_GLPI;

        // If ID less than or equal to 0 (or Entity with ID less than 0 since Root Entity is 0)
        if ($items_id < 0 || ($type !== \Entity::class && $items_id == 0)) {
            echo "&nbsp;";//$item;
        } else {
            switch ($type) {
                case "rules":
                    echo "<a href=\"" . $CFG_GLPI["root_doc"] . "/front/rule.generic.form.php?id=" .
                     $items_id . "\">" . $items_id . "</a>";
                    break;

                case "infocom":
                    $rand = mt_rand();
                    echo " <a href='#' data-bs-toggle='modal' data-bs-target='#infocom$rand'>$items_id</a>";
                    Ajax::createIframeModalWindow(
                        'infocom' . $rand,
                        Infocom::getFormURLWithID($items_id),
                        ['dialog_class' => 'modal-xl']
                    );
                    break;

                case "devices":
                    echo $items_id;
                    break;

                case "reservationitem":
                    echo "<a href=\"" . $CFG_GLPI["root_doc"] . "/front/reservation.php?reservationitems_id=" .
                     $items_id . "\">" . $items_id . "</a>";
                    break;

                default:
                    $type = getSingular($type);
                    $url  = '';
                    if ($item = getItemForItemtype($type)) {
                        $url  =  $item->getFormURLWithID($items_id);
                    }
                    if (!empty($url)) {
                        echo "<a href=\"" . $url . "\">" . $items_id . "</a>";
                    } else {
                        echo $items_id;
                    }
                    break;
            }
        }
    }


    /**
     * Print a nice tab for last event from inventory section
     *
     * Print a great tab to present lasts events occurred on glpi
     *
     * @param string $user  name user to search on message (default '')
     * @param bool $display if false, return html
     **/
    public static function showForUser(string $user = "", bool $display = true)
    {
        global $DB, $CFG_GLPI;

       // Show events from $result in table form
        list($logItemtype, $logService) = self::logArray();

       // define default sorting
        $usersearch = "";
        if (!empty($user)) {
            $usersearch = $user . " ";
        }

       // Query Database
        $iterator = $DB->request([
            'FROM'   => 'glpi_events',
            'WHERE'  => ['message' => ['LIKE', $usersearch . '%']],
            'ORDER'  => 'date DESC',
            'LIMIT'  => (int)$_SESSION['glpilist_limit']
        ]);

       // Number of results
        $number = count($iterator);

       // No Events in database
        if ($number < 1) {
            $twig_params = [
                'class'        => 'table table-hover table-bordered',
                'header_rows'  => [
                    [__('No Event')]
                ],
                'rows'         => []
            ];
            $output = TemplateRenderer::getInstance()->render('components/table.html.twig', $twig_params);
            if ($display) {
                echo $output;
                return;
            } else {
                return $output;
            }
        }

        $twig_params = [
            'class'        => 'table table-hover table-striped table-bordered',
            'header_rows'  => [
                [
                    [
                        'colspan'   => 5,
                        'content'   => "<a href=\"" . $CFG_GLPI["root_doc"] . "/front/event.php\">" .
                     sprintf(__('Last %d events'), $_SESSION['glpilist_limit']) . "</a>"
                    ]
                ],
                [
                    __('Source'),
                    __('Id'),
                    _n('Date', 'Dates', 1),
                    [
                        'content'   => __('Service'),
                        'style'     => 'width: 10%'
                    ],
                    [
                        'content'   => __('Message'),
                        'style'     => 'width: 50%'
                    ],
                ]
            ],
            'rows'   => []
        ];

        foreach ($iterator as $data) {
            $items_id = $data['items_id'];
            $type     = $data['type'];
            $date     = $data['date'];
            $service  = $data['service'];
            $message  = $data['message'];

            $itemtype = "&nbsp;";
            if (isset($logItemtype[$type])) {
                $itemtype = $logItemtype[$type];
            } else {
                $type = getSingular($type);
                if ($item = getItemForItemtype($type)) {
                    $itemtype = $item->getTypeName(1);
                }
            }

           // Capture the 'echo' output of the function
            ob_start();
            self::displayItemLogID($type, $items_id);
            $item_log_id = ob_get_clean();

            $twig_params['rows'][] = [
                'class'  => 'tab_bg_2',
                'values' => [
                    $itemtype,
                    $item_log_id,
                    Html::convDateTime($date),
                    $logService[$service] ?? '',
                    $message
                ]
            ];
        }

        $output = TemplateRenderer::getInstance()->render('components/table.html.twig', $twig_params);
        if ($display) {
            echo $output;
            return;
        } else {
            return $output;
        }
    }


    /**
     * Print a nice tab for last event
     *
     * Print a great tab to present lasts events occurred on glpi
     *
     * @param string  $target  where to go when complete
     * @param string  $order   order by clause occurences (eg: ) (default 'DESC')
     * @param string  $sort    order by clause occurences (eg: date) (defaut 'date')
     * @param integer $start   (default 0)
     **/
    public static function showList($target, $order = 'DESC', $sort = 'date', $start = 0)
    {
        $DBread = DBConnection::getReadConnection();

       // Show events from $result in table form
        list($logItemtype, $logService) = self::logArray();

       // Columns of the Table
        $items = [
            "type"     => [__('Source'), ""],
            "items_id" => [__('ID'), ""],
            "date"     => [_n('Date', 'Dates', 1), ""],
            "service"  => [__('Service'), "width='8%'"],
            "level"    => [__('Level'), "width='8%'"],
            "message"  => [__('Message'), "width='50%'"]
        ];

       // define default sorting
        if (!isset($items[$sort])) {
            $sort = "date";
        }
        if ($order != "ASC") {
            $order = "DESC";
        }

       // Query Database
        $iterator = $DBread->request([
            'FROM'   => 'glpi_events',
            'ORDER'  => "$sort $order",
            'START'  => (int)$start,
            'LIMIT'  => (int)$_SESSION['glpilist_limit']
        ]);

        $events = [];
        foreach ($iterator as $data) {
            $itemtype_name = null;
            $itemtype_icon = CommonDBTM::getIcon();
            if (isset($logItemtype[$data['type']])) {
                $itemtype_name = $logItemtype[$data['type']];
            } else {
                // Converts lowercase plural string into corresponding classname
                $item = getItemForItemtype(getSingular($data['type']));
                if ($item !== false) {
                    $itemtype_name = $item->getTypeName();
                    $itemtype_icon = $item->getIcon();
                }
            }
            $data['itemtype_name'] = $itemtype_name;
            $data['itemtype_icon'] = $itemtype_icon;

            $events[] = $data;
        }

        // Number of results
        $numrows = countElementsInTable("glpi_events");

        TemplateRenderer::getInstance()->display('pages/admin/events_list.html.twig', [
            'count'     => $numrows,
            'order'     => $order,
            'sort'      => $sort,
            'start'     => $start,
            'target'    => $target,
            'events'    => $events,
            'itemtypes' => $logItemtype,
            'services'  => $logService,
        ]);
    }


    public static function getIcon()
    {
        return "ti ti-news";
    }
}
