pandorafms/pandora_console/include/lib/TacticalView/elements/Overview.php

<?php
/**
 * Overview element for tactical view.
 *
 * @category   General
 * @package    Pandora FMS
 * @subpackage TacticalView
 * @version    1.0.0
 * @license    See below
 *
 *    ______                 ___                    _______ _______ ________
 *   |   __ \.-----.--.--.--|  |.-----.----.-----. |    ___|   |   |     __|
 *  |    __/|  _  |     |  _  ||  _  |   _|  _  | |    ___|       |__     |
 * |___|   |___._|__|__|_____||_____|__| |___._| |___|   |__|_|__|_______|
 *
 * ============================================================================
 * Copyright (c) 2007-2023 Artica Soluciones Tecnologicas, http://www.artica.es
 * This code is NOT free software. This code is NOT licenced under GPL2 licence
 * You cannnot redistribute it without written permission of copyright holder.
 * ============================================================================
 */

use PandoraFMS\TacticalView\Element;

/**
 * Overview, this class contain all logic for this section.
 */
class Overview extends Element
{


    /**
     * Constructor
     */
    public function __construct()
    {
        global $config;
        parent::__construct();
        if (is_ajax() === true) {
            include_once $config['homedir'].'/include/functions_servers.php';
        }

        $this->title = __('General overview');
        $this->ajaxMethods = [
            'getLogSizeStatus',
            'getServerStatus',
        ];
        $this->interval = 300000;
        $this->refreshConfig = [
            'logSizeStatus' => [
                'id'     => 'status-log-size',
                'method' => 'getLogSizeStatus',
            ],
            'ServerStatus'  => [
                'id'     => 'status-servers',
                'method' => 'getServerStatus',
            ],
        ];
    }


    /**
     * Return the html log size status.
     *
     * @return string
     */
    public function getLogSizeStatus():string
    {
        $size = $this->valueMonitoring('console_log_size');
        $status = ($size[0]['datos'] < 1000) ? true : false;

        if ($status === true) {
            $image_status = html_print_image('images/status_check@svg.svg', true);
            $text = html_print_div(
                [
                    'content' => __('Everything’s OK!'),
                    'class'   => 'status-text',
                ],
                true
            );
        } else {
            $image_status = html_print_image('images/status_error@svg.svg', true);
            $text = html_print_div(
                [
                    'content' => __('Too size log size'),
                    'class'   => 'status-text',
                ],
                true
            );
        }

        $output = $image_status.$text;

        return html_print_div(
            [
                'content' => $output,
                'class'   => 'margin-top-5 flex_center',
                'id'      => 'status-log-size',
            ],
            true
        );

    }


    /**
     * Return the html Servers status.
     *
     * @return string
     */
    public function getServerStatus():string
    {
        $status = check_all_servers_up();

        if ($status === true) {
            $image_status = html_print_image('images/status_check@svg.svg', true);
            $text = html_print_div(
                [
                    'content' => __('Everything’s OK!'),
                    'class'   => 'status-text',
                ],
                true
            );
        } else {
            $image_status = html_print_image('images/status_error@svg.svg', true);
            $text = html_print_div(
                [
                    'content' => __('Something’s wrong'),
                    'class'   => 'status-text',
                ],
                true
            );
        }

        $output = $image_status.$text;

        return html_print_div(
            [
                'content' => $output,
                'class'   => 'flex_center margin-top-5',
                'id'      => 'status-servers',
            ],
            true
        );

    }


    /**
     * Returns the html of the used licenses.
     *
     * @return string
     */
    public function getLicenseUsageGraph():string
    {
        // TODO: show real data.
        $data = [
            'free_agents' => [
                'label' => __('Free agents'),
                'perc'  => 40,
                'color' => '#5C63A2',
            ],
            'agents_used' => [
                'label' => __('Agents used'),
                'perc'  => 60,
                'color' => '#1C4E6B',
            ],
        ];

        $bar = $this->printHorizontalBar($data);
        $output = html_print_div(
            [
                'content' => $bar,
                'style'   => 'margin: 0 auto;',
            ],
            true
        );

        return $output;
    }


    /**
     * Print horizontal bar divided by percentage.
     *
     * @param array $data Required [perc, color, label].
     *
     * @return string
     */
    private function printHorizontalBar(array $data):string
    {
        $output = '<div id="horizontalBar">';
        $output .= '<div class="labels">';
        foreach ($data as $key => $value) {
            $output .= html_print_div(
                [
                    'content' => '<div style="background: '.$value['color'].'"></div>'.$value['label'],
                    'class'   => 'label',
                ],
                true
            );
        }

        $output .= '</div>';
        $output .= '<div class="bar">';
        foreach ($data as $key => $value) {
            $output .= html_print_div(
                [
                    'content' => $value['perc'].' %',
                    'style'   => 'width: '.$value['perc'].'%; background-color: '.$value['color'].';',
                ],
                true
            );
        }

        $output .= '</div>';
        $output .= '
            <div class="marks">
            <div class="mark"><div class="line"></div><span class="number">0 %</span></div>
            <div class="mark"><div class="line"></div><span class="number">20 %</span></div>
            <div class="mark"><div class="line"></div><span class="number">40 %</span></div>
            <div class="mark"><div class="line"></div><span class="number">60 %</span></div>
            <div class="mark"><div class="line"></div><span class="number">80 %</span></div>
            <div class="mark"><div class="line"></div><span class="number">100 %</span></div>
            </div>';
        $output .= '</div>';

        return $output;
    }


    /**
     * Returns the html of a graph with the cpu load.
     *
     * @return string
     */
    public function getCPULoadGraph():string
    {
        $sql = 'SELECT
                utimestamp,
                DATE_FORMAT(FROM_UNIXTIME(utimestamp), "%Y-%m-%d %H:00:00") AS hour,
                COUNT(*) AS xml_proccessed
                FROM tagent_access
                WHERE FROM_UNIXTIME(utimestamp) >= NOW() - INTERVAL 24 HOUR
                GROUP BY hour
                ORDER BY hour;';

        $rows = db_process_sql($sql);
        $data_last24h = $this->valueMonitoring('CPU Load', (time() - 86400), time());
        $dates = [];
        $cpu_load = [];
        $total = 0;
        foreach ($data_last24h as $key => $raw_data) {
            $dates[] = date('H:m:s', $raw_data['utimestamp']);
            $cpu_load[] = $raw_data['datos'];
        }

        $options = [
            'labels'   => $dates,
            'legend'   => [ 'display' => false ],
            'tooltips' => [ 'display' => false ],
            'scales'   => [
                'y' => [
                    'grid'    => ['display' => false],
                    'ticks'   => ['display' => false],
                    'display' => false,
                ],
                'x' => [
                    'grid'    => ['display' => false],
                    'display' => false,
                ],
            ],
        ];

        $data = [
            [
                'backgroundColor'       => '#009D9E',
                'borderColor'           => '#009D9E',
                'pointBackgroundColor'  => '#009D9E',
                'pointHoverBorderColor' => '#009D9E',
                'data'                  => $cpu_load,
            ],
        ];

        $graph_area = html_print_div(
            [
                'content' => line_graph($data, $options),
                'class'   => 'margin-top-5 w100p h100p',
                'style'   => 'max-height: 50px;',
            ],
            true
        );

        $total = html_print_div(
            [
                'content' => $total,
                'class'   => 'text-xl',
            ],
            true
        );

        $output = $graph_area;

        return $output;
    }


}