<?php

declare(strict_types=1);

namespace LIT\MCP\Tests\Unit\Integrations\Divi\Pages;

use Brain\Monkey\Functions;
use LIT\MCP\Integrations\Divi\Pages\DiviFlags;
use LIT\MCP\Tests\Unit\TestCase;
use RuntimeException;

final class DiviFlagsTest extends TestCase
{
    public function testSetsBothFlagsAndAcceptsAnUnchangedValue(): void
    {
        $written = [];
        // update_post_meta() is false when the value is already "on" – no failure (ruling S11).
        Functions\when('update_post_meta')->alias(static function (int $id, string $key, string $value) use (&$written): bool {
            $written[] = "$id:$key=$value";

            return false;
        });
        Functions\when('get_post_meta')->alias(
            static fn (int $id, string $key): string => $key === '_et_pb_show_page_creation' ? 'off' : 'on'
        );

        DiviFlags::set(7);

        // Like Divi's own save (SyncToServerController.php:382-387), incl. the page creation flow flag.
        self::assertSame(
            ['7:_et_pb_use_divi_5=on', '7:_et_pb_use_builder=on', '7:_et_pb_show_page_creation=off'],
            $written
        );
    }

    public function testThrowsWhenAFlagDoesNotReadBack(): void
    {
        Functions\when('update_post_meta')->justReturn(true);
        Functions\when('get_post_meta')->alias(
            static fn (int $id, string $key): string => $key === '_et_pb_use_builder' ? 'off' : 'on'
        );

        $this->expectException(RuntimeException::class);
        $this->expectExceptionMessage('_et_pb_use_builder');
        DiviFlags::set(7);
    }

    public function testThrowsWhenThePageCreationFlagDoesNotReadBack(): void
    {
        Functions\when('update_post_meta')->justReturn(true);
        Functions\when('get_post_meta')->justReturn('on');

        $this->expectException(RuntimeException::class);
        $this->expectExceptionMessage('_et_pb_show_page_creation');
        DiviFlags::set(7);
    }
}