jhosagid-plugin.php

<?php
/**
 * @package JhosagidPlugin
 */
/*
Plugin Name: Jhosagid Plugin
Plugin URI: http://jhosagid.dev
Description: This is my first attempt on writing a custom Plugin for this amazing tutorial series.
Version: 1.0.0
Authot URI: http://jhosagid.com
License: GPL    v2 or later
Text Domain: jhosagid-plugin
*/

/*
  
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 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be userl,
but WITHOUT'ANY'MMRRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License fbr more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
copyright 2005—2015 Automattic, Inc.

*/

defined( 'ABSPATH' ) or die( 'Hey, you can/t access this file, yuo silly human!');

class JhosagidPlugin
{
    // Public

    // Protected
    // can be accessed only within the class itself or extensions of that class

    // Private
    // can be accesssed only within the class itself

    // Static

    function __construct(){
        // $this->create_post_type();
        $this->print_stuff();
        $this->print_stuff_private();
    }

    function register() {
        add_action( 'admin_enqueue_scripts', array( $this, 'enqueue' ) );
    }

    protected function create_post_type() {
        add_action( 'init', array($this, 'custom_post_type') );
    }
    
    function activate() {
        // generate a CPT
        $this->custom_post_type();
        // flush rewrite rules
        flush_rewrite_rules(); 
    }

    function deactivate() {
        // flush rewrite rules
        flush_rewrite_rules();
    }

    function custom_post_type(){
        register_post_type( 'book', ['public' => true, 'label' => 'Books'] );
    }

    function print_stuff() {
        var_dump(['test']);
    }

    private function print_stuff_private() {
        echo 'Test';
    }

    function enqueue(){
        // enqueue all our scripts
        wp_enqueue_style( 'mypluginstyle', plugins_url( '/assets/mystyle.css', __FILE__ ) );
        wp_enqueue_script( 'mypluginscript', plugins_url( '/assets/myscript.js', __FILE__ ) );
    } 
    
} 

class SecondClass extends JhosagidPlugin
{
    function register_post_type() {
        $this->create_post_type();
    }
}

$secondClass = new SecondClass();
$secondClass->register_post_type();

if ( class_exists( 'JhosagidPlugin' ) ) {
    //instance
    $jhosagidPlugin = new JhosagidPlugin();
    $jhosagidPlugin->register();
}

// activate
register_activation_hook( __FILE__, array( $jhosagidPlugin, 'activate') );
 
// deactivate
register_deactivation_hook( __FILE__, array( $jhosagidPlugin, 'deactivate') );