<?php

declare(strict_types=1);

namespace LIT\MCP\Integrations\Divi\Pages;

use RuntimeException;

/**
 * Marks an entry as a Divi 5 builder layout, like the Visual Builder's own save does
 * (Divi 5.2.1 SyncToServerController.php:382-387: _et_pb_use_divi_5 = "on", legacy
 * _et_pb_use_builder = "on", and _et_pb_show_page_creation = "off" so the builder does not show
 * its page creation flow on the first open). Ruling S11: update_post_meta() returns false for
 * an unchanged value too, so success is checked by reading the flags back. Used by DiviSaver
 * (inside FollowUp) and the Divi content creation.
 */
final class DiviFlags
{
    public const FLAGS = [
        '_et_pb_use_divi_5' => 'on',
        '_et_pb_use_builder' => 'on',
        '_et_pb_show_page_creation' => 'off',
    ];

    /** @throws RuntimeException When a flag does not read back as set. */
    public static function set(int $postId): void
    {
        foreach (self::FLAGS as $key => $value) {
            update_post_meta($postId, $key, $value);
        }

        foreach (self::FLAGS as $key => $value) {
            if (get_post_meta($postId, $key, true) !== $value) {
                throw new RuntimeException(sprintf('Divi flag %s of post %d is not "%s".', $key, $postId, $value));
            }
        }
    }
}