<?php

declare(strict_types=1);

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

use Brain\Monkey\Functions;
use LIT\MCP\Integrations\Divi\Pages\DiviPages;
use LIT\MCP\Integrations\Divi\Release\DiviAdapters;
use LIT\MCP\Integrations\Divi\Release\DiviAreas;
use LIT\MCP\Tests\Unit\TestCase;
use RuntimeException;
use WP_Post;

final class DiviPagesTest 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'
        );

        DiviPages::setFlags(7);

        // Like Divi's own save (SyncToServerController::update, Mirror vb-sync-flags), incl. the page creation 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');
        DiviPages::setFlags(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');
        DiviPages::setFlags(7);
    }

    public function testIsTheRegisteredPagesAdapterWithTheFlagMirror(): void
    {
        $manifest = DiviPages::manifest();

        self::assertContains(DiviPages::class, DiviAdapters::CLASSES);
        self::assertSame(DiviAreas::PAGES, $manifest->area);
        self::assertSame(['vb-sync-flags'], array_map(static fn ($mirror): string => $mirror->id, $manifest->mirrors));
        self::assertSame('SyncToServerController::update()', $manifest->mirrors[0]->label());
    }

    public function testUsesBuilderReadsDivisFlag(): void
    {
        Functions\when('get_post_meta')->alias(
            static fn (int $id, string $key): string => $id === 7 && $key === '_et_pb_use_builder' ? 'on' : ''
        );

        self::assertTrue(DiviPages::usesBuilder(7));
        self::assertFalse(DiviPages::usesBuilder(8));
    }

    public function testBuilderUrlOpensTheVisualBuilder(): void
    {
        Functions\when('get_permalink')->justReturn('https://k.de/start/');
        Functions\when('add_query_arg')->alias(
            static fn (string $key, string $value, string $url): string => $url . '?' . $key . '=' . $value
        );

        self::assertSame('https://k.de/start/?et_fb=1', DiviPages::builderUrl(new WP_Post(['ID' => 7])));
    }

    public function testClearPageCssRemovesThePagesStaticFiles(): void
    {
        \ET_Core_PageResource::$removed = [];

        DiviPages::clearPageCss(7);

        self::assertSame([[7, 'all', true]], \ET_Core_PageResource::$removed);
    }

    /**
     * Own process (Brain Monkey's FunctionStub eval's a real global function the first time a name is
     * stubbed – function_exists() would report it as permanently defined for the rest of the run
     * otherwise, breaking WpLinkTargetsTest's "without Divi" case).
     *
     * @runInSeparateProcess
     */
    public function testIsLinkableFollowsDivisPublicPostTypes(): void
    {
        Functions\when('et_builder_get_public_post_types')->justReturn(['page' => 'Seiten', 'post' => 'Beiträge']);

        self::assertTrue(DiviPages::isLinkable('page'));
        self::assertFalse(DiviPages::isLinkable('product'));
    }
}