<?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\Functional\Extension\HeadingPermalink;

use League\CommonMark\CommonMarkConverter;
use League\CommonMark\Environment;
use League\CommonMark\Extension\HeadingPermalink\HeadingPermalinkExtension;
use League\CommonMark\Extension\HeadingPermalink\HeadingPermalinkRenderer;
use PHPUnit\Framework\TestCase;

final class HeadingPermalinkExtensionTest extends TestCase
{
    /**
     * @param string $input
     * @param string $expected
     *
     * @dataProvider dataProviderForTestHeadingPermalinksWithDefaultOptions
     */
    public function testHeadingPermalinksWithDefaultOptions(string $input, string $expected)
    {
        $environment = Environment::createCommonMarkEnvironment();
        $environment->addExtension(new HeadingPermalinkExtension());

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

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

    public function dataProviderForTestHeadingPermalinksWithDefaultOptions()
    {
        yield ['# Hello World!', sprintf('<h1><a id="user-content-hello-world" href="#hello-world" name="hello-world" class="heading-permalink" aria-hidden="true" title="Permalink">%s</a>Hello World!</h1>', HeadingPermalinkRenderer::DEFAULT_INNER_CONTENTS)];
        yield ['# Hello *World*', sprintf('<h1><a id="user-content-hello-world" href="#hello-world" name="hello-world" class="heading-permalink" aria-hidden="true" title="Permalink">%s</a>Hello <em>World</em></h1>', HeadingPermalinkRenderer::DEFAULT_INNER_CONTENTS)];
        yield ["Test\n----", sprintf('<h2><a id="user-content-test" href="#test" name="test" class="heading-permalink" aria-hidden="true" title="Permalink">%s</a>Test</h2>', HeadingPermalinkRenderer::DEFAULT_INNER_CONTENTS)];
    }

    /**
     * @param string $input
     * @param string $expected
     *
     * @dataProvider dataProviderForTestHeadingPermalinksWithCustomOptions
     */
    public function testHeadingPermalinksWithCustomOptions(string $input, string $expected)
    {
        $environment = Environment::createCommonMarkEnvironment();
        $environment->addExtension(new HeadingPermalinkExtension());

        $config = [
            'heading_permalink' => [
                'html_class'     => 'custom-class',
                'id_prefix'      => 'custom-prefix',
                'inner_contents' => '<span>custom</span>',
                'insert'         => 'after',
                'title'          => 'Link',
            ],
        ];

        $converter = new CommonMarkConverter($config, $environment);

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

    public function dataProviderForTestHeadingPermalinksWithCustomOptions()
    {
        yield ['# Hello World!', '<h1>Hello World!<a id="custom-prefix-hello-world" href="#hello-world" name="hello-world" class="custom-class" aria-hidden="true" title="Link"><span>custom</span></a></h1>'];
        yield ['# Hello *World*', '<h1>Hello <em>World</em><a id="custom-prefix-hello-world" href="#hello-world" name="hello-world" class="custom-class" aria-hidden="true" title="Link"><span>custom</span></a></h1>'];
        yield ["Test\n----", '<h2>Test<a id="custom-prefix-test" href="#test" name="test" class="custom-class" aria-hidden="true" title="Link"><span>custom</span></a></h2>'];
    }

    public function testHeadingPermalinksWithEmptyIdPrefix()
    {
        $environment = Environment::createCommonMarkEnvironment();
        $environment->addExtension(new HeadingPermalinkExtension());

        $config = [
            'heading_permalink' => [
                'id_prefix' => '',
            ],
        ];

        $converter = new CommonMarkConverter($config, $environment);

        $input = '# Hello World!';
        $expected = sprintf('<h1><a id="hello-world" href="#hello-world" name="hello-world" class="heading-permalink" aria-hidden="true" title="Permalink">%s</a>Hello World!</h1>', HeadingPermalinkRenderer::DEFAULT_INNER_CONTENTS);

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

    public function testHeadingPermalinksWithInvalidInsertConfigurationValue()
    {
        $this->expectException(\RuntimeException::class);

        $environment = Environment::createCommonMarkEnvironment();
        $environment->addExtension(new HeadingPermalinkExtension());

        $config = [
            'heading_permalink' => [
                'insert' => 'invalid value here',
            ],
        ];

        $converter = new CommonMarkConverter($config, $environment);
        $converter->convertToHtml('# This will fail');
    }
}
