<?php

namespace Guzzle\Tests\Http;

use Guzzle\Http\QueryString;
use Guzzle\Http\Url;

/**
 * @covers Guzzle\Http\Url
 */
class UrlTest extends \Guzzle\Tests\GuzzleTestCase {

    public function testEmptyUrl() {
        $url = Url::factory('');
        $this->assertEquals('', (string) $url);
    }

    public function testPortIsDeterminedFromScheme() {
        $this->assertEquals(80, Url::factory('http://www.test.com/')->getPort());
        $this->assertEquals(443, Url::factory('https://www.test.com/')->getPort());
        $this->assertEquals(null, Url::factory('ftp://www.test.com/')->getPort());
        $this->assertEquals(8192, Url::factory('http://www.test.com:8192/')->getPort());
    }

    public function testCloneCreatesNewInternalObjects() {
        $u1 = Url::factory('http://www.test.com/');
        $u2 = clone $u1;
        $this->assertNotSame($u1->getQuery(), $u2->getQuery());
    }

    public function testValidatesUrlPartsInFactory() {
        $url = Url::factory('/index.php');
        $this->assertEquals('/index.php', (string) $url);
        $this->assertFalse($url->isAbsolute());

        $url = 'http://michael:test@test.com:80/path/123?q=abc#test';
        $u = Url::factory($url);
        $this->assertEquals('http://michael:test@test.com/path/123?q=abc#test', (string) $u);
        $this->assertTrue($u->isAbsolute());
    }

    public function testAllowsFalsyUrlParts() {
        $url = Url::factory('http://0:50/0?0#0');
        $this->assertSame('0', $url->getHost());
        $this->assertEquals(50, $url->getPort());
        $this->assertSame('/0', $url->getPath());
        $this->assertEquals('0', (string) $url->getQuery());
        $this->assertSame('0', $url->getFragment());
        $this->assertEquals('http://0:50/0?0#0', (string) $url);

        $url = Url::factory('');
        $this->assertSame('', (string) $url);

        $url = Url::factory('0');
        $this->assertSame('0', (string) $url);
    }

    public function testBuildsRelativeUrlsWithFalsyParts() {
        $url = Url::buildUrl(array(
                    'host' => '0',
                    'path' => '0',
        ));

        $this->assertSame('//0/0', $url);

        $url = Url::buildUrl(array(
                    'path' => '0',
        ));
        $this->assertSame('0', $url);
    }

    public function testUrlStoresParts() {
        $url = Url::factory('http://test:pass@www.test.com:8081/path/path2/?a=1&b=2#fragment');
        $this->assertEquals('http', $url->getScheme());
        $this->assertEquals('test', $url->getUsername());
        $this->assertEquals('pass', $url->getPassword());
        $this->assertEquals('www.test.com', $url->getHost());
        $this->assertEquals(8081, $url->getPort());
        $this->assertEquals('/path/path2/', $url->getPath());
        $this->assertEquals('fragment', $url->getFragment());
        $this->assertEquals('a=1&b=2', (string) $url->getQuery());

        $this->assertEquals(array(
            'fragment' => 'fragment',
            'host' => 'www.test.com',
            'pass' => 'pass',
            'path' => '/path/path2/',
            'port' => 8081,
            'query' => 'a=1&b=2',
            'scheme' => 'http',
            'user' => 'test'
                ), $url->getParts());
    }

    public function testHandlesPathsCorrectly() {
        $url = Url::factory('http://www.test.com');
        $this->assertEquals('', $url->getPath());
        $url->setPath('test');
        $this->assertEquals('test', $url->getPath());

        $url->setPath('/test/123/abc');
        $this->assertEquals(array('test', '123', 'abc'), $url->getPathSegments());

        $parts = parse_url('http://www.test.com/test');
        $parts['path'] = '';
        $this->assertEquals('http://www.test.com', Url::buildUrl($parts));
        $parts['path'] = 'test';
        $this->assertEquals('http://www.test.com/test', Url::buildUrl($parts));
    }

    public function testAddsQueryStringIfPresent() {
        $this->assertEquals('?foo=bar', Url::buildUrl(array(
                    'query' => 'foo=bar'
        )));
    }

    public function testAddsToPath() {
        // Does nothing here
        $this->assertEquals('http://e.com/base?a=1', (string) Url::factory('http://e.com/base?a=1')->addPath(false));
        $this->assertEquals('http://e.com/base?a=1', (string) Url::factory('http://e.com/base?a=1')->addPath(null));
        $this->assertEquals('http://e.com/base?a=1', (string) Url::factory('http://e.com/base?a=1')->addPath(array()));
        $this->assertEquals('http://e.com/base?a=1', (string) Url::factory('http://e.com/base?a=1')->addPath(new \stdClass()));
        $this->assertEquals('http://e.com/base?a=1', (string) Url::factory('http://e.com/base?a=1')->addPath(''));
        $this->assertEquals('http://e.com/base?a=1', (string) Url::factory('http://e.com/base?a=1')->addPath('/'));
        $this->assertEquals('http://e.com/baz/foo', (string) Url::factory('http://e.com/baz/')->addPath('foo'));
        $this->assertEquals('http://e.com/base/relative?a=1', (string) Url::factory('http://e.com/base?a=1')->addPath('relative'));
        $this->assertEquals('http://e.com/base/relative?a=1', (string) Url::factory('http://e.com/base?a=1')->addPath('/relative'));
        $this->assertEquals('http://e.com/base/0', (string) Url::factory('http://e.com/base')->addPath('0'));
        $this->assertEquals('http://e.com/base/0/1', (string) Url::factory('http://e.com/base')->addPath('0')->addPath('1'));
    }

    /**
     * URL combination data provider
     *
     * @return array
     */
    public function urlCombineDataProvider() {
        return array(
            array('http://www.example.com/', 'http://www.example.com/', 'http://www.example.com/'),
            array('http://www.example.com/path', '/absolute', 'http://www.example.com/absolute'),
            array('http://www.example.com/path', '/absolute?q=2', 'http://www.example.com/absolute?q=2'),
            array('http://www.example.com/path', 'more', 'http://www.example.com/path/more'),
            array('http://www.example.com/path', 'more?q=1', 'http://www.example.com/path/more?q=1'),
            array('http://www.example.com/', '?q=1', 'http://www.example.com/?q=1'),
            array('http://www.example.com/path', 'http://test.com', 'http://test.com'),
            array('http://www.example.com:8080/path', 'http://test.com', 'http://test.com'),
            array('http://www.example.com:8080/path', '?q=2#abc', 'http://www.example.com:8080/path?q=2#abc'),
            array('http://u:a@www.example.com/path', 'test', 'http://u:a@www.example.com/path/test'),
            array('http://www.example.com/path', 'http://u:a@www.example.com/', 'http://u:a@www.example.com/'),
            array('/path?q=2', 'http://www.test.com/', 'http://www.test.com/path?q=2'),
            array('http://api.flickr.com/services/', 'http://www.flickr.com/services/oauth/access_token', 'http://www.flickr.com/services/oauth/access_token'),
            array('http://www.example.com/?foo=bar', 'some/path', 'http://www.example.com/some/path?foo=bar'),
            array('http://www.example.com/?foo=bar', 'some/path?boo=moo', 'http://www.example.com/some/path?boo=moo&foo=bar'),
            array('http://www.example.com/some/', 'path?foo=bar&foo=baz', 'http://www.example.com/some/path?foo=bar&foo=baz'),
        );
    }

    /**
     * @dataProvider urlCombineDataProvider
     */
    public function testCombinesUrls($a, $b, $c) {
        $this->assertEquals($c, (string) Url::factory($a)->combine($b));
    }

    public function testHasGettersAndSetters() {
        $url = Url::factory('http://www.test.com/');
        $this->assertEquals('example.com', $url->setHost('example.com')->getHost());
        $this->assertEquals('8080', $url->setPort(8080)->getPort());
        $this->assertEquals('/foo/bar', $url->setPath(array('foo', 'bar'))->getPath());
        $this->assertEquals('a', $url->setPassword('a')->getPassword());
        $this->assertEquals('b', $url->setUsername('b')->getUsername());
        $this->assertEquals('abc', $url->setFragment('abc')->getFragment());
        $this->assertEquals('https', $url->setScheme('https')->getScheme());
        $this->assertEquals('a=123', (string) $url->setQuery('a=123')->getQuery());
        $this->assertEquals('https://b:a@example.com:8080/foo/bar?a=123#abc', (string) $url);
        $this->assertEquals('b=boo', (string) $url->setQuery(new QueryString(array(
                    'b' => 'boo'
                )))->getQuery());
        $this->assertEquals('https://b:a@example.com:8080/foo/bar?b=boo#abc', (string) $url);
    }

    public function testSetQueryAcceptsArray() {
        $url = Url::factory('http://www.test.com');
        $url->setQuery(array('a' => 'b'));
        $this->assertEquals('http://www.test.com?a=b', (string) $url);
    }

    public function urlProvider() {
        return array(
            array('/foo/..', '/'),
            array('//foo//..', '/'),
            array('/foo/../..', '/'),
            array('/foo/../.', '/'),
            array('/./foo/..', '/'),
            array('/./foo', '/foo'),
            array('/./foo/', '/foo/'),
            array('/./foo/bar/baz/pho/../..', '/foo/bar'),
            array('*', '*'),
            array('/foo', '/foo'),
            array('/abc/123/../foo/', '/abc/foo/'),
            array('/a/b/c/./../../g', '/a/g'),
            array('/b/c/./../../g', '/g'),
            array('/b/c/./../../g', '/g'),
            array('/c/./../../g', '/g'),
            array('/./../../g', '/g'),
        );
    }

    /**
     * @dataProvider urlProvider
     */
    public function testNormalizesPaths($path, $result) {
        $url = Url::factory('http://www.example.com/');
        $url->setPath($path)->normalizePath();
        $this->assertEquals($result, $url->getPath());
    }

    public function testSettingHostWithPortModifiesPort() {
        $url = Url::factory('http://www.example.com');
        $url->setHost('foo:8983');
        $this->assertEquals('foo', $url->getHost());
        $this->assertEquals(8983, $url->getPort());
    }

    /**
     * @expectedException \Guzzle\Common\Exception\InvalidArgumentException
     */
    public function testValidatesUrlCanBeParsed() {
        Url::factory('foo:////');
    }

    public function testConvertsSpecialCharsInPathWhenCastingToString() {
        $url = Url::factory('http://foo.com/baz bar?a=b');
        $url->addPath('?');
        $this->assertEquals('http://foo.com/baz%20bar/%3F?a=b', (string) $url);
    }

    /**
     * @link http://tools.ietf.org/html/rfc3986#section-5.4.1
     */
    public function rfc3986UrlProvider() {
        $result = array(
            array('g', 'http://a/b/c/g'),
            array('./g', 'http://a/b/c/g'),
            array('g/', 'http://a/b/c/g/'),
            array('/g', 'http://a/g'),
            array('?y', 'http://a/b/c/d;p?y'),
            array('g?y', 'http://a/b/c/g?y'),
            array('#s', 'http://a/b/c/d;p?q#s'),
            array('g#s', 'http://a/b/c/g#s'),
            array('g?y#s', 'http://a/b/c/g?y#s'),
            array(';x', 'http://a/b/c/;x'),
            array('g;x', 'http://a/b/c/g;x'),
            array('g;x?y#s', 'http://a/b/c/g;x?y#s'),
            array('', 'http://a/b/c/d;p?q'),
            array('.', 'http://a/b/c'),
            array('./', 'http://a/b/c/'),
            array('..', 'http://a/b'),
            array('../', 'http://a/b/'),
            array('../g', 'http://a/b/g'),
            array('../..', 'http://a/'),
            array('../../', 'http://a/'),
            array('../../g', 'http://a/g')
        );

        // This support was added in PHP 5.4.7: https://bugs.php.net/bug.php?id=62844
        if (version_compare(PHP_VERSION, '5.4.7', '>=')) {
            $result[] = array('//g', 'http://g');
        }

        return $result;
    }

    /**
     * @dataProvider rfc3986UrlProvider
     */
    public function testCombinesUrlsUsingRfc3986($relative, $result) {
        $a = Url::factory('http://a/b/c/d;p?q');
        $b = Url::factory($relative);
        $this->assertEquals($result, trim((string) $a->combine($b, true), '='));
    }

}
