<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpFoundation\Tests;

use PHPUnit\Framework\TestCase;
use Symfony\Component\HttpFoundation\AcceptHeader;
use Symfony\Component\HttpFoundation\AcceptHeaderItem;

class AcceptHeaderTest extends TestCase
{
    public function testFirst()
    {
        $header = AcceptHeader::fromString('text/plain; q=0.5, text/html, text/x-dvi; q=0.8, text/x-c');
        $this->assertSame('text/html', $header->first()->getValue());
    }

    /**
     * @dataProvider provideFromStringData
     */
    public function testFromString($string, array $items)
    {
        $header = AcceptHeader::fromString($string);
        $parsed = array_values($header->all());
        // reset index since the fixtures don't have them set
        foreach ($parsed as $item) {
            $item->setIndex(0);
        }
        $this->assertEquals($items, $parsed);
    }

    public function provideFromStringData()
    {
        return [
            ['', []],
            ['gzip', [new AcceptHeaderItem('gzip')]],
            ['gzip,deflate,sdch', [new AcceptHeaderItem('gzip'), new AcceptHeaderItem('deflate'), new AcceptHeaderItem('sdch')]],
            ["gzip, deflate\t,sdch", [new AcceptHeaderItem('gzip'), new AcceptHeaderItem('deflate'), new AcceptHeaderItem('sdch')]],
            ['"this;should,not=matter"', [new AcceptHeaderItem('this;should,not=matter')]],
        ];
    }

    /**
     * @dataProvider provideToStringData
     */
    public function testToString(array $items, $string)
    {
        $header = new AcceptHeader($items);
        $this->assertEquals($string, (string) $header);
    }

    public function provideToStringData()
    {
        return [
            [[], ''],
            [[new AcceptHeaderItem('gzip')], 'gzip'],
            [[new AcceptHeaderItem('gzip'), new AcceptHeaderItem('deflate'), new AcceptHeaderItem('sdch')], 'gzip,deflate,sdch'],
            [[new AcceptHeaderItem('this;should,not=matter')], 'this;should,not=matter'],
        ];
    }

    /**
     * @dataProvider provideFilterData
     */
    public function testFilter($string, $filter, array $values)
    {
        $header = AcceptHeader::fromString($string)->filter($filter);
        $this->assertEquals($values, array_keys($header->all()));
    }

    public function provideFilterData()
    {
        return [
            ['fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4', '/fr.*/', ['fr-FR', 'fr']],
        ];
    }

    /**
     * @dataProvider provideSortingData
     */
    public function testSorting($string, array $values)
    {
        $header = AcceptHeader::fromString($string);
        $this->assertEquals($values, array_keys($header->all()));
    }

    public function provideSortingData()
    {
        return [
            'quality has priority' => ['*;q=0.3,ISO-8859-1,utf-8;q=0.7',  ['ISO-8859-1', 'utf-8', '*']],
            'order matters when q is equal' => ['*;q=0.3,ISO-8859-1;q=0.7,utf-8;q=0.7',  ['ISO-8859-1', 'utf-8', '*']],
            'order matters when q is equal2' => ['*;q=0.3,utf-8;q=0.7,ISO-8859-1;q=0.7',  ['utf-8', 'ISO-8859-1', '*']],
        ];
    }
}