<?php
/**
 * Widget Netflow Pandora FMS Console
 *
 * @category   Console Class
 * @package    Pandora FMS
 * @subpackage Widget Netflow
 * @version    1.0.0
 * @license    See below
 *
 *    ______                 ___                    _______ _______ ________
 *   |   __ \.-----.--.--.--|  |.-----.----.-----. |    ___|   |   |     __|
 *  |    __/|  _  |     |  _  ||  _  |   _|  _  | |    ___|       |__     |
 * |___|   |___._|__|__|_____||_____|__| |___._| |___|   |__|_|__|_______|
 *
 * ============================================================================
 * Copyright (c) 2005-2021 Artica Soluciones Tecnologicas
 * 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 for 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.
 * ============================================================================
 */
namespace PandoraFMS\Dashboard;

/**
 * Netflow.
 */
class Netflow extends Widget
{

    /**
     * Name widget.
     *
     * @var string
     */
    protected $name;

    /**
     * Title widget.
     *
     * @var string
     */
    protected $title;

    /**
     * Page widget;
     *
     * @var string
     */
    protected $page;

    /**
     * Class name widget.
     *
     * @var [type]
     */
    protected $className;

    /**
     * Values options for each widget.
     *
     * @var [type]
     */
    protected $values;

    /**
     * Configuration required.
     *
     * @var boolean
     */
    protected $configurationRequired;

    /**
     * Error load widget.
     *
     * @var boolean
     */
    protected $loadError;

    /**
     * Width.
     *
     * @var integer
     */
    protected $width;

    /**
     * Heigth.
     *
     * @var integer
     */
    protected $height;

    /**
     * Grid Width.
     *
     * @var integer
     */
    protected $gridWidth;


    /**
     * Construct.
     *
     * @param integer      $cellId      Cell ID.
     * @param integer      $dashboardId Dashboard ID.
     * @param integer      $widgetId    Widget ID.
     * @param integer|null $width       New width.
     * @param integer|null $height      New height.
     * @param integer|null $gridWidth   Grid width.
     */
    public function __construct(
        int $cellId,
        int $dashboardId=0,
        int $widgetId=0,
        ?int $width=0,
        ?int $height=0,
        ?int $gridWidth=0
    ) {
        global $config;

        // Includes.
        include_once $config['homedir'].'/include/functions_graph.php';
        include_once $config['homedir'].'/include/class/NetworkMap.class.php';
        // WARNING: Do not edit. This chunk must be in the constructor.
        parent::__construct(
            $cellId,
            $dashboardId,
            $widgetId
        );

        // Width.
        $this->width = $width;

        // Height.
        $this->height = $height;

        // Grid Width.
        $this->gridWidth = $gridWidth;

        // Options.
        $this->values = $this->getOptionsWidget();

        // Positions.
        $this->position = $this->getPositionWidget();

        // Page.
        $this->page = basename(__FILE__);

        // ClassName.
        $class = new \ReflectionClass($this);
        $this->className = $class->getShortName();

        // Title.
        $this->title = __('Netflow');

        // Name.
        if (empty($this->name) === true) {
            $this->name = 'netflow';
        }
    }


    /**
     * Generates inputs for form (specific).
     *
     * @return array Of inputs.
     *
     * @throws Exception On error.
     */
    public function getFormInputs(): array
    {
        $values = $this->values;

        // Retrieve global - common inputs.
        $inputs = parent::getFormInputs();

        // Default values.
        if (isset($values['quantity']) === false) {
            $values['quantity'] = 5;
        }

        // Default values.
        if (isset($values['period']) === false) {
            $values['period'] = SECONDS_1WEEK;
        }

        // Default values.
        if (isset($values['max_values']) === false) {
            $values['max_values'] = 10;
        }

        // Period.
        $inputs[] = [
            'label'     => __('Interval'),
            'arguments' => [
                'name'          => 'period',
                'type'          => 'interval',
                'value'         => $values['period'],
                'nothing'       => __('None'),
                'nothing_value' => 0,
                'style_icon'    => 'flex-grow: 0',
            ],
        ];
        $chart_types = netflow_get_chart_types();
        $chart_types['usage_map'] = __('Usage map');
        $inputs[] = [
            'label'     => __('Type graph'),
            'arguments' => [
                'name'     => 'chart_type',
                'type'     => 'select',
                'fields'   => $chart_types,
                'selected' => $values['chart_type'],
            ],
        ];

        $aggregate_list = [
            'srcip'   => __('Src Ip Address'),
            'dstip'   => __('Dst Ip Address'),
            'srcport' => __('Src Port'),
            'dstport' => __('Dst Port'),
        ];
        $inputs[] = [
            'label'     => __('Aggregated by'),
            'id'        => 'aggregated',
            'arguments' => [
                'name'     => 'aggregate',
                'type'     => 'select',
                'fields'   => $aggregate_list,
                'selected' => $values['aggregate'],
            ],
        ];

        $inputs[] = [
            'label'     => __('Data to show'),
            'id'        => 'data_to_show',
            'arguments' => [
                'name'     => 'action',
                'type'     => 'select',
                'fields'   => network_get_report_actions(),
                'selected' => $values['action'],
            ],
        ];

        $max_values = [
            '2'  => '2',
            '5'  => '5',
            '10' => '10',
            '15' => '15',
            '20' => '20',
            '25' => '25',
            '50' => '50',
        ];

        $inputs[] = [
            'label'     => __('Max values'),
            'arguments' => [
                'name'     => 'max_values',
                'type'     => 'select',
                'fields'   => $max_values,
                'selected' => $values['max_values'],
            ],
        ];

        return $inputs;
    }


    /**
     * Get Post for widget.
     *
     * @return array
     */
    public function getPost():array
    {
        // Retrieve global - common inputs.
        $values = parent::getPost();

        $values['period'] = \get_parameter('period', 0);
        $values['chart_type'] = \get_parameter('chart_type', '');
        $values['aggregate'] = \get_parameter('aggregate');
        $values['max_values'] = \get_parameter('max_values', 10);
        $values['action'] = \get_parameter('action', 'srcip');

        return $values;
    }


    /**
     * Draw widget.
     *
     * @return string
     */
    public function load()
    {
        ui_require_css_file('netflow_widget', 'include/styles/', true);
        global $config;

        $output = '';

        $size = parent::getSize();

        $start_date = (time() - $this->values['period']);
        $end_date = time();
        if ($this->values['chart_type'] === 'usage_map') {
            $map_data = netflow_build_map_data(
                $start_date,
                $end_date,
                $this->values['max_values'],
                ($this->values['action'] === 'talkers') ? 'srcip' : 'dstip'
            );
            $has_data = !empty($map_data['nodes']);

            if ($has_data === true) {
                $map_manager = new \NetworkMap($map_data);
                $map_manager->printMap();
            } else {
                ui_print_info_message(__('No data to show'));
            }
        } else {
            $netflowContainerClass = ($this->values['chart_type'] === 'netflow_data' || $this->values['chart_type'] === 'netflow_summary' || $this->values['chart_type'] === 'netflow_top_N') ? '' : 'white_box';
            $filter = [
                'aggregate'                   => $this->values['aggregate'],
                'netflow_monitoring_interval' => 300,
            ];

            $output .= html_print_input_hidden(
                'selected_style_theme',
                $config['style'],
                true
            );
            $style = 'width:100%; height: 100%; border: none;';
            if ($this->values['chart_type'] !== 'netflow_area') {
                $style .= ' width: 95%;';
            }

            if ($size['width'] > $size['height']) {
                $size['width'] = $size['height'];
            }

            // Draw the netflow chart.
            $output .= html_print_div(
                [
                    'class'   => $netflowContainerClass,
                    'style'   => $style,
                    'content' => netflow_draw_item(
                        $start_date,
                        $end_date,
                        12,
                        $this->values['chart_type'],
                        $filter,
                        $this->values['max_values'],
                        '',
                        'HTML',
                        0,
                        ($size['width'] - 50),
                        ($size['height'] - 20),
                    ),
                ],
                true
            );
        }

        return $output;

    }


    /**
     * Return aux javascript code for forms.
     *
     * @return string
     */
    public function getFormJS()
    {
        return '
            $(document).ready(function(){
                //Limit 1 week
                $("#period_select option").each(function(key, element){
                    if(element.value > 604800){
                        $(element).remove();
                    }
                })
                $("#period_manual option").each(function(key, element){
                    if(element.value > 604800){
                        $(element).remove();
                    }
                });
                $("#period_manual input").on("change", function(e){
                    if($("#hidden-period").val() > 604800) {
                        $(this).val(1);
                        $("#hidden-period").val(604800);
                        $("#period_manual select option").removeAttr("selected");
                        setTimeout(() => {
                            $("#period_default select option[value=\'604800\']").attr("selected", "selected");
                            $("#period_manual select option[value=\'604800\']").attr("selected", "selected");
                            $("#period_manual select").val(604800);
                        }, 500);
                    }
                });
                if($("#chart_type").val() === "usage_map") {
                    $("#data_to_show").show();
                    $("#aggregated").hide();
                } else {
                    $("#data_to_show").hide();
                    $("#aggregated").show();
                }
                $("#chart_type").on("change", function(e){
                    if(this.value === "usage_map") {
                        $("#data_to_show").show();
                        $("#aggregated").hide();
                    } else {
                        $("#data_to_show").hide();
                        $("#aggregated").show();
                    }
                });
            });
        ';
    }


    /**
     * Get description.
     *
     * @return string.
     */
    public static function getDescription()
    {
        return __('Netflow');
    }


    /**
     * Get Name.
     *
     * @return string.
     */
    public static function getName()
    {
        return 'netflow';
    }


    /**
     * Get size Modal Configuration.
     *
     * @return array
     */
    public function getSizeModalConfiguration(): array
    {
        $size = [
            'width'  => 400,
            'height' => 530,
        ];

        return $size;
    }


}