<?php

namespace Sabre\HTTP;

class URLUtilTest extends \PHPUnit_Framework_TestCase{

    function testEncodePath() {

        $str = '';
        for ($i = 0;$i < 128;$i++) $str .= chr($i);

        $newStr = URLUtil::encodePath($str);

        $this->assertEquals(
            '%00%01%02%03%04%05%06%07%08%09%0a%0b%0c%0d%0e%0f' .
            '%10%11%12%13%14%15%16%17%18%19%1a%1b%1c%1d%1e%1f' .
            '%20%21%22%23%24%25%26%27()%2a%2b%2c-./' .
            '0123456789:%3b%3c%3d%3e%3f' .
            '@ABCDEFGHIJKLMNO' .
            'PQRSTUVWXYZ%5b%5c%5d%5e_' .
            '%60abcdefghijklmno' .
            'pqrstuvwxyz%7b%7c%7d~%7f',
            $newStr);

        $this->assertEquals($str, URLUtil::decodePath($newStr));

    }

    function testEncodePathSegment() {

        $str = '';
        for ($i = 0;$i < 128;$i++) $str .= chr($i);

        $newStr = URLUtil::encodePathSegment($str);

        // Note: almost exactly the same as the last test, with the
        // exception of the encoding of / (ascii code 2f)
        $this->assertEquals(
            '%00%01%02%03%04%05%06%07%08%09%0a%0b%0c%0d%0e%0f' .
            '%10%11%12%13%14%15%16%17%18%19%1a%1b%1c%1d%1e%1f' .
            '%20%21%22%23%24%25%26%27()%2a%2b%2c-.%2f' .
            '0123456789:%3b%3c%3d%3e%3f' .
            '@ABCDEFGHIJKLMNO' .
            'PQRSTUVWXYZ%5b%5c%5d%5e_' .
            '%60abcdefghijklmno' .
            'pqrstuvwxyz%7b%7c%7d~%7f',
            $newStr);

        $this->assertEquals($str, URLUtil::decodePathSegment($newStr));

    }

    function testDecode() {

        $str = 'Hello%20Test+Test2.txt';
        $newStr = URLUtil::decodePath($str);
        $this->assertEquals('Hello Test+Test2.txt', $newStr);

    }

    /**
     * @depends testDecode
     */
    function testDecodeUmlaut() {

        $str = 'Hello%C3%BC.txt';
        $newStr = URLUtil::decodePath($str);
        $this->assertEquals("Hello\xC3\xBC.txt", $newStr);

    }

    /**
     * @depends testDecodeUmlaut
     */
    function testDecodeUmlautLatin1() {

        $str = 'Hello%FC.txt';
        $newStr = URLUtil::decodePath($str);
        $this->assertEquals("Hello\xC3\xBC.txt", $newStr);

    }

    /**
     * This testcase was sent by a bug reporter
     *
     * @depends testDecode
     */
    function testDecodeAccentsWindows7() {

        $str = '/webdav/%C3%A0fo%C3%B3';
        $newStr = URLUtil::decodePath($str);
        $this->assertEquals(strtolower($str), URLUtil::encodePath($newStr));

    }

    function testSplitPath() {

        $strings = [

            // input                    // expected result
            '/foo/bar'                 => ['/foo','bar'],
            '/foo/bar/'                => ['/foo','bar'],
            'foo/bar/'                 => ['foo','bar'],
            'foo/bar'                  => ['foo','bar'],
            'foo/bar/baz'              => ['foo/bar','baz'],
            'foo/bar/baz/'             => ['foo/bar','baz'],
            'foo'                      => ['','foo'],
            'foo/'                     => ['','foo'],
            '/foo/'                    => ['','foo'],
            '/foo'                     => ['','foo'],
            ''                         => [null,null],

            // UTF-8
            "/\xC3\xA0fo\xC3\xB3/bar"  => ["/\xC3\xA0fo\xC3\xB3",'bar'],
            "/\xC3\xA0foo/b\xC3\xBCr/" => ["/\xC3\xA0foo","b\xC3\xBCr"],
            "foo/\xC3\xA0\xC3\xBCr"    => ["foo","\xC3\xA0\xC3\xBCr"],

        ];

        foreach ($strings as $input => $expected) {

            $output = URLUtil::splitPath($input);
            $this->assertEquals($expected, $output, 'The expected output for \'' . $input . '\' was incorrect');


        }

    }

    /**
     * @dataProvider resolveData
     */
    function testResolve($base, $update, $expected) {

        $this->assertEquals(
            $expected,
            URLUtil::resolve($base, $update)
        );

    }

    function resolveData() {

        return [
            [
                'http://example.org/foo/baz',
                '/bar',
                'http://example.org/bar',
            ],
            [
                'https://example.org/foo',
                '//example.net/',
                'https://example.net/',
            ],
            [
                'https://example.org/foo',
                '?a=b',
                'https://example.org/foo?a=b',
            ],
            [
                '//example.org/foo',
                '?a=b',
                '//example.org/foo?a=b',
            ],
            // Ports and fragments
            [
                'https://example.org:81/foo#hey',
                '?a=b#c=d',
                'https://example.org:81/foo?a=b#c=d',
            ],
            // Relative.. in-directory paths
            [
                'http://example.org/foo/bar',
                'bar2',
                'http://example.org/foo/bar2',
            ],
            // Now the base path ended with a slash
            [
                'http://example.org/foo/bar/',
                'bar2/bar3',
                'http://example.org/foo/bar/bar2/bar3',
            ],
        ];

    }

}
