<?php

namespace League\CommonMark\Extension\SmartPunct;

use League\CommonMark\Delimiter\Delimiter;
use League\CommonMark\Parser\Inline\InlineParserInterface;
use League\CommonMark\Parser\Inline\InlineParserMatch;
use League\CommonMark\Parser\InlineParserContext;
use League\CommonMark\Util\RegexHelper;

final class QuoteParser implements InlineParserInterface
{
    public const DOUBLE_QUOTES = [Quote::DOUBLE_QUOTE, Quote::DOUBLE_QUOTE_OPENER, Quote::DOUBLE_QUOTE_CLOSER];
    public const SINGLE_QUOTES = [Quote::SINGLE_QUOTE, Quote::SINGLE_QUOTE_OPENER, Quote::SINGLE_QUOTE_CLOSER];

    public function getMatchDefinition(): InlineParserMatch
    {
        return InlineParserMatch::oneOf(...\array_merge(self::DOUBLE_QUOTES, self::SINGLE_QUOTES));
    }

    /**
     * Normalizes any quote characters found and manually adds them to the delimiter stack
     */
    public function parse(InlineParserContext $inlineContext): bool
    {
        $char   = $inlineContext->getFullMatch();
        $cursor = $inlineContext->getCursor();

        $normalizedCharacter = $this->getNormalizedQuoteCharacter($char);

        $charBefore = $cursor->peek(-1);
        if ($charBefore === null) {
            $charBefore = "\n";
        }

        $cursor->advance();

        $charAfter = $cursor->getCurrentCharacter();
        if ($charAfter === null) {
            $charAfter = "\n";
        }

        [$leftFlanking, $rightFlanking] = $this->determineFlanking($charBefore, $charAfter);
        $canOpen                        = $leftFlanking && ! $rightFlanking;
        $canClose                       = $rightFlanking;

        $node = new Quote($normalizedCharacter, ['delim' => true]);
        $inlineContext->getContainer()->appendChild($node);

        // Add entry to stack to this opener
        $inlineContext->getDelimiterStack()->push(new Delimiter($normalizedCharacter, 1, $node, $canOpen, $canClose));

        return true;
    }

    private function getNormalizedQuoteCharacter(string $character): string
    {
        if (\in_array($character, self::DOUBLE_QUOTES, true)) {
            return Quote::DOUBLE_QUOTE;
        }

        if (\in_array($character, self::SINGLE_QUOTES, true)) {
            return Quote::SINGLE_QUOTE;
        }

        return $character;
    }

    /**
     * @return bool[]
     */
    private function determineFlanking(string $charBefore, string $charAfter): array
    {
        $afterIsWhitespace   = \preg_match('/\pZ|\s/u', $charAfter);
        $afterIsPunctuation  = \preg_match(RegexHelper::REGEX_PUNCTUATION, $charAfter);
        $beforeIsWhitespace  = \preg_match('/\pZ|\s/u', $charBefore);
        $beforeIsPunctuation = \preg_match(RegexHelper::REGEX_PUNCTUATION, $charBefore);

        $leftFlanking = ! $afterIsWhitespace &&
            ! ($afterIsPunctuation &&
                ! $beforeIsWhitespace &&
                ! $beforeIsPunctuation);

        $rightFlanking = ! $beforeIsWhitespace &&
            ! ($beforeIsPunctuation &&
                ! $afterIsWhitespace &&
                ! $afterIsPunctuation);

        return [$leftFlanking, $rightFlanking];
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODc5Nzc2NzEwMTQ2MjkxMyA3OTkzODM3ODE3MjE2NzY0IDUxMjk2NTAxOTA1NzIyOTY=