<?php

/*
 * 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\Extension\Autolink;

use League\CommonMark\CommonMarkConverter;
use League\CommonMark\Environment;
use League\CommonMark\Extension\Autolink\AutolinkExtension;
use PHPUnit\Framework\TestCase;

final class UrlAutolinkProcessorTest extends TestCase
{
    /**
     * @param string $input
     * @param string $expected
     *
     * @dataProvider dataProviderForAutolinkTests
     */
    public function testUrlAutolinks($input, $expected)
    {
        $environment = Environment::createCommonMarkEnvironment();
        $environment->addExtension(new AutolinkExtension());

        $converter = new CommonMarkConverter([], $environment);

        $this->assertEquals($expected, trim($converter->convertToHtml($input)));
    }

    public function dataProviderForAutolinkTests()
    {
        // Basic examples
        yield ['You can search on http://google.com for stuff.', '<p>You can search on <a href="http://google.com">http://google.com</a> for stuff.</p>'];
        yield ['https://google.com', '<p><a href="https://google.com">https://google.com</a></p>'];
        yield ['ftp://example.com', '<p><a href="ftp://example.com">ftp://example.com</a></p>'];
        yield ['www.google.com', '<p><a href="http://www.google.com">www.google.com</a></p>'];
        yield [' http://leadingwhitespace.example.com', '<p><a href="http://leadingwhitespace.example.com">http://leadingwhitespace.example.com</a></p>'];
        yield ['http://trailingwhitespace.example.com ', '<p><a href="http://trailingwhitespace.example.com">http://trailingwhitespace.example.com</a></p>'];
        yield ['- https://example.com/list-item', "<ul>\n<li>\n<a href=\"https://example.com/list-item\">https://example.com/list-item</a>\n</li>\n</ul>"];

        // Tests of "incomplete" URLs
        yield ['google.com is missing www and/or a protocol', '<p>google.com is missing www and/or a protocol</p>'];
        yield ['http:/google.com is missing a slash', '<p>http:/google.com is missing a slash</p>'];
        yield ['javascript:alert(0); doesn\'t match the supported protocols', '<p>javascript:alert(0); doesn\'t match the supported protocols</p>'];

        // Tests involving trailing characters
        yield ['Maybe you\'re interested in https://www.google.com/search?q=php+commonmark!', '<p>Maybe you\'re interested in <a href="https://www.google.com/search?q=php+commonmark">https://www.google.com/search?q=php+commonmark</a>!</p>'];
        yield ['Or perhaps you\'re looking for my personal website https://www.colinodell.com...?', '<p>Or perhaps you\'re looking for my personal website <a href="https://www.colinodell.com">https://www.colinodell.com</a>...?</p>'];
        yield ['Check https://www.stackoverflow.com: they have all the answers', '<p>Check <a href="https://www.stackoverflow.com">https://www.stackoverflow.com</a>: they have all the answers</p>'];
        yield ['- https://example.com/list-item-with-trailing-colon:', "<ul>\n<li>\n<a href=\"https://example.com/list-item-with-trailing-colon\">https://example.com/list-item-with-trailing-colon</a>:</li>\n</ul>"];
        yield ['Visit www.commonmark.org.', '<p>Visit <a href="http://www.commonmark.org">www.commonmark.org</a>.</p>'];
        yield ['Visit www.commonmark.org/a.b.', '<p>Visit <a href="http://www.commonmark.org/a.b">www.commonmark.org/a.b</a>.</p>'];

        // Tests involving parentheses
        yield ['www.google.com/search?q=Markup+(business)', '<p><a href="http://www.google.com/search?q=Markup+(business)">www.google.com/search?q=Markup+(business)</a></p>'];
        yield ['www.google.com/search?q=Markup+(business)))', '<p><a href="http://www.google.com/search?q=Markup+(business)">www.google.com/search?q=Markup+(business)</a>))</p>'];
        yield ['(www.google.com/search?q=Markup+(business))', '<p>(<a href="http://www.google.com/search?q=Markup+(business)">www.google.com/search?q=Markup+(business)</a>)</p>'];
        yield ['(www.google.com/search?q=Markup+(business)', '<p>(<a href="http://www.google.com/search?q=Markup+(business)">www.google.com/search?q=Markup+(business)</a></p>'];
        yield ['www.google.com/search?q=(business))+ok', '<p><a href="http://www.google.com/search?q=(business))+ok">www.google.com/search?q=(business))+ok</a></p>'];
        yield ['(https://www.example.com/test).', '<p>(<a href="https://www.example.com/test">https://www.example.com/test</a>).</p>'];

        // Tests involving semi-colon endings
        yield ['www.google.com/search?q=commonmark&hl=en', '<p><a href="http://www.google.com/search?q=commonmark&amp;hl=en">www.google.com/search?q=commonmark&amp;hl=en</a></p>'];
        yield ['www.google.com/search?q=commonmark&hl;', '<p><a href="http://www.google.com/search?q=commonmark">www.google.com/search?q=commonmark</a>&amp;hl;</p>'];

        // Test that < immediately terminates an autolink
        yield ['www.commonmark.org/he<lp', '<p><a href="http://www.commonmark.org/he">www.commonmark.org/he</a>&lt;lp</p>'];

        // Regression: two links with one underscore each
        yield ["https://eventum.example.net/history.php?iss_id=107092\nhttps://gitlab.example.net/group/project/merge_requests/39#note_150630", "<p><a href=\"https://eventum.example.net/history.php?iss_id=107092\">https://eventum.example.net/history.php?iss_id=107092</a>\n<a href=\"https://gitlab.example.net/group/project/merge_requests/39#note_150630\">https://gitlab.example.net/group/project/merge_requests/39#note_150630</a></p>"];

        // Regression: CommonMark autolinks should not be double-linked
        yield ['<https://www.google.com>', '<p><a href="https://www.google.com">https://www.google.com</a></p>'];
    }
}
