<?php

namespace League\HTMLToMarkdown\Converter;

use League\HTMLToMarkdown\Configuration;
use League\HTMLToMarkdown\ConfigurationAwareInterface;
use League\HTMLToMarkdown\ElementInterface;

class LinkConverter implements ConverterInterface, ConfigurationAwareInterface
{
    /** @var Configuration */
    protected $config;

    public function setConfig(Configuration $config): void
    {
        $this->config = $config;
    }

    public function convert(ElementInterface $element): string
    {
        $href  = $element->getAttribute('href');
        $title = $element->getAttribute('title');
        $text  = \trim($element->getValue(), "\t\n\r\0\x0B");

        if ($title !== '') {
            $markdown = '[' . $text . '](' . $href . ' "' . $title . '")';
        } elseif ($href === $text && $this->isValidAutolink($href)) {
            $markdown = '<' . $href . '>';
        } elseif ($href === 'mailto:' . $text && $this->isValidEmail($text)) {
            $markdown = '<' . $text . '>';
        } else {
            if (\stristr($href, ' ')) {
                $href = '<' . $href . '>';
            }

            $markdown = '[' . $text . '](' . $href . ')';
        }

        if (! $href) {
            if ($this->shouldStrip()) {
                $markdown = $text;
            } else {
                $markdown = \html_entity_decode($element->getChildrenAsString());
            }
        }

        return $markdown;
    }

    /**
     * @return string[]
     */
    public function getSupportedTags(): array
    {
        return ['a'];
    }

    private function isValidAutolink(string $href): bool
    {
        $useAutolinks = $this->config->getOption('use_autolinks');

        return $useAutolinks && (\preg_match('/^[A-Za-z][A-Za-z0-9.+-]{1,31}:[^<>\x00-\x20]*/i', $href) === 1);
    }

    private function isValidEmail(string $email): bool
    {
        // Email validation is messy business, but this should cover most cases
        return \filter_var($email, FILTER_VALIDATE_EMAIL) !== false;
    }

    private function shouldStrip(): bool
    {
        return \boolval($this->config->getOption('strip_placeholder_links') ?? false);
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTQ1MDAxMzQ0OTgyOTQyNSA3OTE0MzI4MDU1NTY1OTk1IDY0MzYxNjI0MDY1Njk3MA==