<?php

declare(strict_types=1);

/*
 * This file is part of the league/commonmark package.
 *
 * (c) Colin O'Dell <colinodell@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace League\CommonMark\Tests\Unit\Parser;

use League\CommonMark\Environment\Environment;
use League\CommonMark\Extension\CommonMark\Node\Inline\Link;
use League\CommonMark\Extension\CommonMark\Parser\Inline\CloseBracketParser;
use League\CommonMark\Extension\CommonMark\Parser\Inline\OpenBracketParser;
use League\CommonMark\Node\Block\Paragraph;
use League\CommonMark\Node\Inline\Text;
use League\CommonMark\Parser\Inline\InlineParserMatch;
use League\CommonMark\Parser\InlineParserEngine;
use League\CommonMark\Reference\ReferenceMap;
use League\CommonMark\Tests\Unit\Parser\Inline\FakeInlineParser;
use PHPUnit\Framework\TestCase;

final class InlineParserEngineTest extends TestCase
{
    public function testParseWithDefaultPriorityOrder(): void
    {
        $colorParser      = new FakeInlineParser(InlineParserMatch::string('brown'));
        $adjectiveParser  = new FakeInlineParser(InlineParserMatch::oneOf('quick', 'brown', 'lazy'));
        $fiveLetterParser = new FakeInlineParser(InlineParserMatch::regex('\b\w{5}\b'));

        $environment = new Environment();
        $environment->addInlineParser($colorParser);
        $environment->addInlineParser($adjectiveParser);
        $environment->addInlineParser($fiveLetterParser);

        $engine    = new InlineParserEngine($environment, new ReferenceMap());
        $paragraph = new Paragraph();
        $engine->parse('The quick brown fox jumps over the lazy dog', $paragraph);

        $this->assertSame(['brown'], $colorParser->getMatches());
        $this->assertSame(['quick', 'lazy'], $adjectiveParser->getMatches());
        $this->assertSame(['jumps'], $fiveLetterParser->getMatches());
    }

    public function testParseWithDifferentPriorityOrder(): void
    {
        $colorParser      = new FakeInlineParser(InlineParserMatch::string('brown'));
        $adjectiveParser  = new FakeInlineParser(InlineParserMatch::oneOf('quick', 'brown', 'lazy'));
        $fiveLetterParser = new FakeInlineParser(InlineParserMatch::regex('\b\w{5}\b'));

        $environment = new Environment();
        $environment->addInlineParser($colorParser, 100);
        $environment->addInlineParser($adjectiveParser, -100);
        $environment->addInlineParser($fiveLetterParser);

        $engine    = new InlineParserEngine($environment, new ReferenceMap());
        $paragraph = new Paragraph();
        $engine->parse('The quick brown fox jumps over the lazy dog', $paragraph);

        $this->assertSame(['brown'], $colorParser->getMatches());
        $this->assertSame(['lazy'], $adjectiveParser->getMatches());
        $this->assertSame(['quick', 'jumps'], $fiveLetterParser->getMatches());
    }

    public function testParseWithNoInlineParsers(): void
    {
        $environment = new Environment();
        $engine      = new InlineParserEngine($environment, new ReferenceMap());
        $paragraph   = new Paragraph();
        $engine->parse('The quick brown fox jumps over the lazy dog', $paragraph);

        $this->assertCount(1, $paragraph->children());
        $child = $paragraph->firstChild();
        $this->assertTrue($child instanceof Text);
        $this->assertSame('The quick brown fox jumps over the lazy dog', $child->getLiteral());
    }

    /**
     * @see https://github.com/thephpleague/commonmark/issues/951
     *
     * @runInSeparateProcess to avoid polluting the global environment
     */
    public function testMultibyteDetectionRegressionFromIssue951(): void
    {
        \mb_internal_encoding('iso-8859-1'); // @phpstan-ignore-line

        $environment = new Environment();
        $environment->addInlineParser(new CloseBracketParser(), 30);
        $environment->addInlineParser(new OpenBracketParser(), 20);

        $engine    = new InlineParserEngine($environment, new ReferenceMap());
        $paragraph = new Paragraph();
        $engine->parse('AAA ÀÀ [label](https://url)', $paragraph);

        $this->assertCount(2, $paragraph->children());

        $text = $paragraph->firstChild();
        $this->assertTrue($text instanceof Text);
        $this->assertSame('AAA ÀÀ ', $text->getLiteral());

        $link = $paragraph->lastChild();
        $this->assertTrue($link instanceof Link);
        $this->assertSame('label', $link->firstChild()->getLiteral());
        $this->assertSame('https://url', $link->getUrl());
    }
}