<?php declare(strict_types=1);

/*
 * Copyright (c) 2018  https://sikofitt.com sikofitt@sikofitt.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\GenerateMac\Tests;

use PHPUnit\Framework\TestCase;
use Sikofitt\GenerateMac\Command\GenerateMacCommand;
use Symfony\Component\Console\Application;
use Symfony\Component\Console\Exception\InvalidArgumentException;
use Symfony\Component\Console\Tester\CommandTester;

class GenerateMacCommandTest extends TestCase
{
    private const REGEX = '/^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$/';

    /**
     * @var CommandTester
     */
    private $commandTester;

    public function setUp(): void
    {
        $application = new Application();
        $application->add(new GenerateMacCommand());
        $application->setDefaultCommand('generate-mac', true);

        $this->commandTester = new CommandTester(new GenerateMacCommand());

        parent::setUp(); // TODO: Change the autogenerated stub
    }

    public function testCommand(): void
    {
        $this->commandTester->execute([]);
        $display = $this->commandTester->getDisplay();
        $this->assertStringContainsString('// Generated 1 mac addresses', $display);
        $this->assertSame(0, $this->commandTester->getStatusCode());
        $this->expectException(\RuntimeException::class);
        $this->commandTester->execute(['--count' => -1]);
    }

    public function testJson(): void
    {
        $this->commandTester->execute(['--output' => 'json']);
        $this->assertJson($this->commandTester->getDisplay());
        $this->assertSame(0, $this->commandTester->getStatusCode());
    }

    public function testPlain(): void
    {
        $this->commandTester->execute(['--output' => 'plain', '--count' => 1]);
        $this->assertMatchesRegularExpression(self::REGEX, $this->commandTester->getDisplay());
        $this->assertSame(0, $this->commandTester->getStatusCode());
    }

    public function testInvalidSeparator(): void
    {
        $this->expectException(InvalidArgumentException::class);
        $this->commandTester->execute(['--separator' => 'invalid']);
    }

    public function testSeparators(): void
    {
        $this->commandTester->execute(['--separator' => 'colon', '--output' => 'plain']);
        $output = $this->commandTester->getDisplay();
        $this->assertNotFalse(strpos($output, ':'));
        $this->commandTester->execute(['--separator' => 'none', '--output' => 'plain']);

        $output = $this->commandTester->getDisplay(true);
        // 13 because it adds a new line with SymfonyStyle::writeLn();
        $this->assertSame(13, \strlen($output));
        // just to make sure trim it.
        $this->assertSame(12, \strlen(trim($output)));

        $this->commandTester->execute(['--separator' => 'dash', '--output' => 'plain']);
        $output = $this->commandTester->getDisplay();
        $this->assertNotFalse(strpos($output, '-'));
    }
}