<?php

declare(strict_types=1);

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

use LIT\MCP\Integrations\Divi\BlockTree\Block;
use LIT\MCP\Integrations\Divi\BlockTree\GlobalInstance;
use LIT\MCP\Integrations\Divi\BlockTree\LibraryContent;
use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
use LIT\MCP\Integrations\Divi\BlockTree\Parser;
use LIT\MCP\Integrations\Divi\BlockTree\Serializer;
use LIT\MCP\Tests\Support\DiviFixtures;
use PHPUnit\Framework\TestCase;

final class LibraryContentTest extends TestCase
{
    /** @return array<string, array{string, string}> */
    public static function savedNodes(): array
    {
        return [
            'section' => ['s1', 'library--library-abschnitt.html'],
            'row' => ['s1.r0', 'library--library-zeile.html'],
            'module' => ['s1.r0.c0.m0', 'library--library-modul.html'],
        ];
    }

    /**
     * The builder's "add to library" wraps the node in divi/placeholder (F4); the fixtures only
     * differ by the CRLF of the form upload (finding 9).
     *
     * @dataProvider savedNodes
     */
    public function testWrapMatchesTheBuilderEntry(string $id, string $file): void
    {
        $index = NodeIndex::build((new Parser())->parse(DiviFixtures::markup('stage3/page--globale-instanzen.html')));

        self::assertSame(
            str_replace("\r\n", "\n", DiviFixtures::markup('stage3/' . $file)),
            LibraryContent::wrap($index->find($id))
        );
    }

    public function testLoadUnifiesLineBreaksAndRootsSkipThePlaceholder(): void
    {
        $document = LibraryContent::load(new Parser(), DiviFixtures::markup('stage3/library--layout-ganze-seite.html'));

        self::assertStringNotContainsString("\r", Serializer::document($document));
        self::assertSame(
            ['divi/section', 'divi/section', 'divi/section'],
            array_map(static fn (Block $block): string => $block->name(), LibraryContent::roots($document))
        );
        self::assertSame(
            ['divi/text'],
            array_map(
                static fn (Block $block): string => $block->name(),
                LibraryContent::roots((new Parser())->parse('<!-- wp:divi/text /-->'))
            )
        );
    }

    public function testContainsGlobal(): void
    {
        $index = NodeIndex::build((new Parser())->parse(DiviFixtures::markup('stage3/page--globale-instanzen.html')));

        self::assertTrue(LibraryContent::containsGlobal($index->find('s0')));
        self::assertFalse(LibraryContent::containsGlobal($index->find('s1')));
    }

    public function testShapeViolations(): void
    {
        $section = Block::create('divi/section');
        $row = Block::create('divi/row');
        $instance = GlobalInstance::of(Block::create('divi/text'), 9);
        $withInstance = Block::create('divi/section', [], [Block::create('divi/row', [], [
            Block::create('divi/column', [], [$instance]),
        ])]);

        self::assertNull(LibraryContent::shapeViolation([$section], [$section], 'section', false));
        self::assertStringContainsString(
            'nicht leer',
            (string) LibraryContent::shapeViolation([$section], [], 'section', false)
        );
        self::assertStringContainsString(
            'genau ein divi/section',
            (string) LibraryContent::shapeViolation([$section], [$section, $section], 'section', false)
        );
        self::assertStringContainsString(
            'genau ein divi/section',
            (string) LibraryContent::shapeViolation([$section], [$row], null, false)
        );
        self::assertNull(LibraryContent::shapeViolation([$section, $section], [$section], 'layout', false));
        self::assertStringContainsString(
            'nur Abschnitte',
            (string) LibraryContent::shapeViolation([$section, $section], [$section, $row], 'layout', false)
        );
        self::assertNull(LibraryContent::shapeViolation([$section], [$withInstance], 'section', false));
        self::assertStringContainsString(
            'keine globalen Module',
            (string) LibraryContent::shapeViolation([$section], [$withInstance], 'section', true)
        );
    }
}