I am new to plug-in development and have ran into a bit of a speed bump.

So here are my criteria, I am pretty much struggling to tick off any of them:

I wish to create a custom post type ‘website’ – This bit I can do!

I require only three fields, two of which are custom meta fields (title, website_url & website_source_code) – The extra fields, I believe are being created!

I require an admin menu tab which will link to the list of websites – Doesn’t show when using the extended code below.

I require all forms of editing to be removed, however, still be able to click into each entry and view its contents (without being able to edit or update) – I think this is where the meta_cap features comes in, don’t know how to apply it though.

Here is the full code I am using to declare my custom post type:

// Create Custom Post Type
protected function create_post_type() {
    add_action('init', array($this, 'custom_post_type'));
    add_action('admin_init', array($this, 'custom_post_type_caps'));
}

// Register Websites Custom Post Type
function custom_post_type() {
    /*$labels = array( 
        'name'                  => __( 'Websites', 'website' ),
        'singular_name'         => __( 'Website', 'website' ),
        'add_new'               => __( 'Add New', 'website' ),
        'add_new_item'          => __( 'Add New Website', 'website' ),
        'edit_item'             => __( 'Edit Website', 'website' ),
        'new_item'              => __( 'New Website', 'website' ),
        'view_item'             => __( 'View Website', 'website' ),
        'search_items'          => __( 'Search Websites', 'website' ),
        'not_found'             => __( 'No websites found', 'website' ),
        'not_found_in_trash'    => __( 'No websites found in Trash', 'website' ),
        'parent_item_colon'     => __( 'Parent Website:', 'website' ),
        'menu_name'             => __( 'Websites', 'website' ),
    );*/

    $args = array( 
        //'labels'                  => $labels,
        'label'                     => 'Websites',
        //'hierarchical'                => true,
        'description'               => 'List of websites',
        'supports'                  => array( 'title', 'website_url', 'website_source_code'),
        'public'                    => true,
        //'show_ui'                 => true,
        'show_in_menu'              => true,
        'menu_icon'                 => 'dashicons-admin-site-alt3',
        //'show_in_nav_menus'           => true,
        //'publicly_queryable'      => true,
        //'exclude_from_search'     => false,
        //'has_archive'             => true,
        //'query_var'                   => true,
        //'can_export'              => true,
        'rewrite'                   => false,
        'capabilities'              => array(
            'create_posts'              => false,
            'edit_post'                 => 'edit_website',
            'edit_posts'                => false,
            'edit_others_posts'         => false,
            'publish_posts'             => false,
            'read_post'                 => 'read_website',
            'read_private_posts'        => false,
            'delete_post'               => 'delete_website'
        ),
        'map_meta_cap' => true
    );

    register_post_type('website', $args);
    //register_post_type('website', ['public' => true, 'label' => 'Websites']);
}

function custom_post_type_caps() {
    // gets the administrator role
    $admins = get_role('administrator');

    $admins->add_cap('edit_website');
    $admins->add_cap('read_website');
    $admins->add_cap('delete_website');
}

A lot of things are commented out as I know that it works, the posts are created and can be accessed in a wp_query loop. I am just unable to get any other of the requirements on the list above ticked off so was attempting to dumb the code down a bit in the hopes I had just overcomplicated it.

If I use this line:

register_post_type('website', ['public' => true, 'label' => 'Websites']);

The post type is created and a menu tab appears in the admin left hand menu. But then I am unable to add any other criteria from the list above.

I have read and appreciate there are numerous other similar posts, but none are quite like this one, the combination of requirements are unique.