<?php
/**
 * Observium
 *
 *   This file is part of Observium.
 *
 * @package        observium
 * @subpackage     web
 * @copyright  (C) Adam Armstrong
 *
 */

$link_array = ['page' => 'device', 'device' => $device['device_id'], 'tab' => 'apps'];

$navbar          = [];
$navbar['brand'] = "Applications";
$navbar['class'] = "navbar-narrow";

// Group all apps by app_type in an array
$device_app_types = [];
foreach (dbFetchRows("SELECT * FROM `applications` WHERE `device_id` = ?", [$device['device_id']]) as $app) {
    $device_app_types[$app['app_type']][] = $app;
}

// Iterate through each app type and its apps
foreach ($device_app_types as $type_key => $type_data) {
    foreach ($type_data as $app) {
        // Set default app and instance if none given (ie. when user first visits the device's app tab)
        if (!$vars['app']) {
            $vars['app'] = $app['app_type'];
        }

        if ($vars['app'] == $app['app_type'] && !isset($vars['instance'])) {
            $vars['instance'] = $app['app_id'];
        }


        $url = generate_url(['page' => 'device', 'device' => $device['device_id'], 'tab' => 'apps', 'app' => $app['app_type']]);

        // Check if an app name was inserted into mysql->observium.applications.app_name
        $name = !empty($app['app_name']) ? $app['app_name'] : nicecase($app['app_type']);

        // Determine if this is a named instance of app_type
        if (!empty($app['app_instance'])) {
            $instance = " (" . $app['app_instance'] . ")";
        }

        // If there is only one instance of the current app type, simply include it as a standard nav link
        if (count($device_app_types[$type_key]) == 1) {
            // If the current page is the app type that's being displayed, highlight the nav link
            if ($vars['app'] == $app['app_type']) {
                $navbar['options'][$app['app_type']]['class'] = "active";
            }
            $navbar['options'][$app['app_type']]['text'] = $name;
            $navbar['options'][$app['app_type']]['url']  = $url;

            // Detect and add application icon
            $icon  = $app['app_type'];
            $image = $config['html_dir'] . '/images/apps/' . $icon . '.png';
            if (!is_file($image)) {
                [$icon] = explode('-', str_replace('_', '-', $app['app_type']));
                $image = $config['html_dir'] . '/images/apps/' . $icon . '.png';
                if ($icon !== $app['app_type'] && is_file($image)) {
                    // 'postfix_qshape' -> 'postfix'
                    // 'exim-mailqueue' -> 'exim'
                } else {
                    $icon = 'apps'; // Generic
                }
            }
            $navbar['options'][$app['app_type']]['image'] = 'images/apps/' . $icon . '.png';
            if (is_file($config['html_dir'] . '/images/apps/' . $icon . '_2x.png')) {
                // HiDPI icon
                $navbar['options'][$app['app_type']]['image_2x'] = 'images/apps/' . $icon . '_2x.png';
            }
        }

        // If there is more than one instance of the current app type we need to determine how to render the navbar
        // FIXME -- no icons
        else {
            // If the current app type and instance is the one being displayed, highlight the navbar root link and show which app/instance
            if ($vars['app'] == $app['app_type'] && $vars['instance'] == $app['app_id']) {
                $navbar['options'][$app['app_type']]['class'] = "active";
                $navbar['options'][$app['app_type']]['text']  = $name . $instance;
            } // If the current app type is not active then we need to simply add the root nav link to the bar as inactive
            else {
                if (!isset($navbar['options'][$app['app_type']]['text'])) {
                    $navbar['options'][$app['app_type']]['text'] = $name;
                }
            }

            // Add all instances of the app type under the submenu for the app type
            $navbar['options'][$app['app_type']]['suboptions'][$app['app_id']]['text'] = $name . $instance;
            $navbar['options'][$app['app_type']]['suboptions'][$app['app_id']]['url']  = generate_url(['page' => 'device', 'device' => $device['device_id'], 'tab' => 'apps', 'app' => $app['app_type'], 'instance' => $app['app_id']]);
        }
    }
}
print_navbar($navbar);
unset($navbar, $name, $url, $device_app_types);

$where_array = [$device['device_id'], $vars['app']];
if ($vars['instance']) {
    $where         = " AND `app_id` = ?";
    $where_array[] = $vars['instance'];
}

$app = dbFetchRow("SELECT * FROM `applications` WHERE `device_id` = ? AND `app_type` = ?" . $where, $where_array);

$app_filename = $config['html_dir'] . '/pages/device/apps/' . $vars['app'] . '.inc.php';
if (is_file($app_filename)) {
    // Include app code to output data
    include($app_filename);

    // If an $app_sections array has been returned, build a menu
    if (isset($app_sections) && is_array($app_sections)) {
        $navbar['brand'] = nicecase($vars['app']);
        $navbar['class'] = "navbar-narrow";

        foreach ($app_sections as $app_section => $text) {
            // Set the chosen app to be this one if it's not already set.
            if (!$vars['app_section']) {
                $vars['app_section'] = $app_section;
            }
            if ($vars['app_section'] == $app_section) {
                $navbar['options'][$app_section]['class'] = "active";
            }

            $navbar['options'][$app_section]['url']  = generate_url($vars, ['app_section' => $app_section]);
            $navbar['options'][$app_section]['text'] = $text;
        }
        print_navbar($navbar);
        unset($navbar);
    } else {
        // It appears this app doesn't have multiple sections. We set app_section to default here.
        $vars['app_section'] = 'default';
    }

    // If a matching app_section array exists within app_graphs, print the graphs.
    if (isset($app_graphs[$vars['app_section']]) && is_array($app_graphs[$vars['app_section']])) {
        echo generate_box_open();

        echo '<table class="table table-striped table-hover  table-condensed">';

        foreach ($app_graphs[$vars['app_section']] as $key => $text) {
            $graph_type          = $key;
            $graph_array['to']   = get_time();
            $graph_array['id']   = $app['app_id'];
            $graph_array['type'] = "application_" . $key;
            echo '<tr><td>';
            echo '<h3>', $text, '</h4>';

            print_graph_row($graph_array);

            echo '</td></tr>';
        }
        echo '</table>';

        generate_box_close();
    }
}

register_html_title("Apps");

// EOF