<?php declare(strict_types=1);

/*
 *     This file is part of sikofitt/user-agent
 *
 *     Copyleft (C) 2017  http://sikofitt.com sikofitt@gmail.com
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace Sikofitt\Tests;

use PHPUnit\Framework\TestCase;
use Sikofitt\UserAgent\UserAgent;

class UserAgentTest extends TestCase
{
    private $zts;
    private $arch;

    public function setUp(): void
    {
        $this->zts = (bool)PHP_ZTS ? '-zts' : '';
        $this->arch = 9223372036854775807 === PHP_INT_MAX ? 'x86_64' : 'i386';

        parent::setUp();
    }

    public function testExtendUserAgent(): void
    {
        $userAgent = new class extends UserAgent {
            protected static $format = 'PHP/%d.%d.%d (%d)';
            protected static $params = [
                PHP_MAJOR_VERSION,
                PHP_MINOR_VERSION,
                PHP_RELEASE_VERSION,
                PHP_VERSION_ID,
            ];
        };

        $expected = sprintf(
            'PHP/%d.%d.%d (%d)',
            PHP_MAJOR_VERSION,
            PHP_MINOR_VERSION,
            PHP_RELEASE_VERSION,
            PHP_VERSION_ID
        );
        $actual = $userAgent::create();
        $this->assertSame($expected, $actual);
    }

    public function testFailure(): void
    {
        $userAgent = new class extends UserAgent {
            protected static $format = '';
            protected static $params = [];
        };

        $this->assertNotSame(UserAgent::create(), $userAgent::create());
        $this->assertNotSame(UserAgent::create(), '');
    }

    public function testDefaultUserAgent(): void
    {
        $format = 'PHP/%d.%d%s-%d (%s; %s %s) PHP/%s%s; %s (%s)';
        $params = [
          PHP_MAJOR_VERSION,
          PHP_MINOR_VERSION,
          $this->zts,
          PHP_VERSION_ID,
          'sikofitt/user-agent',
          PHP_OS_FAMILY,
          $this->arch,
          PHP_VERSION,
          $this->zts,
          $this->getGuzzleVersionString(),
          'https://packagist.org/sikofitt/user-agent',
        ];
        $expected = sprintf($format, ...$params);

        $userAgent = UserAgent::create();
        $this->assertSame($expected, $userAgent);
    }

    private function getGuzzleVersionString(): string
    {
        /** @noinspection ClassConstantCanBeUsedInspection */
        if (class_exists('GuzzleHttp\Client')) {
            /** @noinspection PhpUnnecessaryFullyQualifiedNameInspection */
            $guzzleClient = new \GuzzleHttp\Client();
            $guzzleHeaders = $guzzleClient->getConfig('headers');
            $guzzleUserAgent = $guzzleHeaders['User-Agent'];
            return trim(explode('php', strtolower($guzzleUserAgent))[0]);
        }

        return '';
    }
}