<?php
namespace Rafgrid;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Editable post type discovery.
 */
class Post_Types {

	/**
	 * Types hidden from the switcher even if public.
	 *
	 * @var string[]
	 */
	private static $never = array(
		'attachment',
		'revision',
		'nav_menu_item',
		'custom_css',
		'customize_changeset',
		'oembed_cache',
		'user_request',
		'wp_block',
		'wp_template',
		'wp_template_part',
		'wp_global_styles',
		'wp_navigation',
		'wp_font_family',
		'wp_font_face',
		'scheduled-action',
		'shop_order_placehold',
	);

	/**
	 * Get editable types for the UI.
	 *
	 * @return array slug => label
	 */
	public static function editable() {
		$out   = array();
		$types = get_post_types( array(), 'objects' );
		foreach ( $types as $slug => $obj ) {
			if ( in_array( $slug, self::$never, true ) ) {
				continue;
			}
			if ( str_starts_with( $slug, 'e_' ) || str_starts_with( $slug, 'elementor' ) ) {
				continue;
			}
			// Show public types + shop types + any type with UI.
			$is_candidate = ( ! empty( $obj->public ) || ! empty( $obj->show_ui ) );
			if ( ! $is_candidate ) {
				continue;
			}
			if ( 'product_variation' === $slug ) {
				continue; // Variations are edited inside the product row expansion, not as a sheet.
			}
			$out[ $slug ] = $obj->labels->singular_name ? $obj->labels->singular_name . ' (' . $slug . ')' : $slug;
		}
		// Most useful first.
		$order = array( 'product', 'post', 'page', 'shop_order', 'shop_coupon' );
		uksort(
			$out,
			function ( $a, $b ) use ( $order ) {
				$pa = array_search( $a, $order, true );
				$pb = array_search( $b, $order, true );
				$pa = false === $pa ? 99 : $pa;
				$pb = false === $pb ? 99 : $pb;
				if ( $pa === $pb ) {
					return strcmp( $a, $b );
				}
				return $pa < $pb ? -1 : 1;
			}
		);
		return $out;
	}
}