knowledge-space.php

<?php

/*
Plugin Name: Knowledge Space
Description: This plugin adds a knowledge space to the website via a shortcode.
Version: 1.0
Author: Matthias Konitzny
*/

$GLOBALS['build'] = 'debug';

function ks_add_graph($atts = []): string
{
    $space_id = get_space_id_from_atts($atts);
    $div = '<div id="3d-graph"></div>'; // The id "3d-graph" indicates, that the javascript associated with this should automatically be executed
    $plugin_dir = plugin_dir_url(__FILE__);
    //$dataset = $plugin_dir.'datasets/miserables.json';
    $variables = "<script> 
                  var plugin_path = '$plugin_dir';
                  var space_id = '$space_id';
                  </script>";

    $script_path = $plugin_dir . 'build' . DIRECTORY_SEPARATOR . $GLOBALS['build'] . DIRECTORY_SEPARATOR . 'graph.js';
    $script = "<script src='$script_path'></script>";
    //wp_enqueue_script('kg-script', $script_path);

    return $div . $variables . $script;
}

function ks_add_editor($atts = [])
{
    ks_add_editor_dependencies();

    $space_id = get_space_id_from_atts($atts);
    $plugin_dir = plugin_dir_url(__FILE__);
    echo "<script> 
        var plugin_path = '$plugin_dir';
        var space_id = '$space_id';
        </script>";

    require_once(__DIR__ . '/editor/editor.php');
}

function ks_add_editor_dependencies()
{
    $script_path = 'build' . DIRECTORY_SEPARATOR . $GLOBALS['build'] . DIRECTORY_SEPARATOR . 'graph.js';

    wp_enqueue_script('jquery');
    wp_enqueue_script("ks-editor-js", plugins_url($script_path, __FILE__), array(), false);

    $style_file_version = date("ymd-Gis", filemtime(plugin_dir_path(__FILE__) . "editor/css/editor.css"));
    wp_enqueue_style("ks-editor-css", plugins_url("editor/css/editor.css", __FILE__), array(), $style_file_version);
}

function kg_load_css()
{
    $plugin_dir = plugin_dir_url(__FILE__);
    wp_enqueue_style('kg-style', $plugin_dir . 'kg-style.css');
}

function escape_space_id($id)
{
    return str_replace(
        "\\",
        "-",
        str_replace(
            "/",
            "-",
            str_replace(" ", "-", $id)
        )
    );
}

function get_space_id_from_atts($atts) {
    if ($atts != "" && array_key_exists("space", $atts)) {
        return escape_space_id($atts["space"]);
    } else {
        return "space";
    }
}

add_action('wp_enqueue_scripts', 'kg_load_css');
add_shortcode('knowledge-space', 'ks_add_graph');
add_shortcode('knowledge-space-editor', 'ks_add_editor');