<?php declare(strict_types=1);
/*
 * This file is part of sebastian/cli-parser.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\CliParser;

use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\Small;
use PHPUnit\Framework\Attributes\TestDox;
use PHPUnit\Framework\TestCase;

#[CoversClass(AmbiguousOptionException::class)]
#[CoversClass(OptionDoesNotAllowArgumentException::class)]
#[CoversClass(Parser::class)]
#[CoversClass(RequiredOptionArgumentMissingException::class)]
#[CoversClass(UnknownOptionException::class)]
#[Small]
final class ParserTest extends TestCase
{
    public function testParsesShortOptionsWithOptionalValues(): void
    {
        $this->assertSame(
            [
                [
                    [
                        'f',
                        null,
                    ],
                ],
                [
                    'myArgument',
                ],
            ],
            (new Parser)->parse(
                [
                    'command',
                    'myArgument',
                    '-f',
                ],
                'f::',
            ),
        );
    }

    public function testParsesLongOptionsWithValues(): void
    {
        $this->assertSame(
            [
                [
                    ['--exec', null],
                    ['--conf', 'config.xml'],
                    ['--optn', null],
                    ['--optn', 'content-of-o'],
                ],
                [
                    'parameter-0',
                    'parameter-1',
                    'parameter-2',
                    'parameter-n',
                ],
            ],
            (new Parser)->parse(
                [
                    'command',
                    'parameter-0',
                    '--exec',
                    'parameter-1',
                    '--conf',
                    'config.xml',
                    '--optn',
                    'parameter-2',
                    '--optn=content-of-o',
                    'parameter-n',
                ],
                '',
                ['exec', 'conf=', 'optn=='],
            ),
        );
    }

    public function testParsesShortOptionsWithValues(): void
    {
        $this->assertSame(
            [
                [
                    ['x', null],
                    ['c', 'config.xml'],
                    ['o', null],
                    ['o', 'content-of-o'],
                ],
                [
                    'parameter-0',
                    'parameter-1',
                    'parameter-2',
                    'parameter-n',
                ],
            ],
            (new Parser)->parse(
                [
                    'command',
                    'parameter-0',
                    '-x',
                    'parameter-1',
                    '-c',
                    'config.xml',
                    '-o',
                    'parameter-2',
                    '-ocontent-of-o',
                    'parameter-n',
                ],
                'xc:o::',
            ),
        );
    }

    public function testParsesLongOptionsAfterArguments(): void
    {
        $this->assertSame(
            [
                [
                    [
                        '--colors',
                        null,
                    ],
                ],
                [
                    'myArgument',
                ],
            ],
            (new Parser)->parse(
                [
                    'command',
                    'myArgument',
                    '--colors',
                ],
                '',
                ['colors=='],
            ),
        );
    }

    public function testParsesShortOptionsAfterArguments(): void
    {
        $this->assertSame(
            [
                [
                    [
                        'v',
                        null,
                    ],
                ],
                [
                    'myArgument',
                ],
            ],
            (new Parser)->parse(
                [
                    'command',
                    'myArgument',
                    '-v',
                ],
                'v',
            ),
        );
    }

    public function testReturnsEmptyResultWhenNoOptionsAreConfiguredAndNoOptionsArePassed(): void
    {
        $this->assertSame(
            [
                [],
                [],
            ],
            (new Parser)->parse(
                [],
                '',
            ),
        );
    }

    #[TestDox('Returns list of non-options after --')]
    public function testReturnsListOfNonOptions(): void
    {
        $this->assertSame(
            [
                [
                    [
                        '--foo',
                        null,
                    ],
                ],
                ['bar'],
            ],
            (new Parser)->parse(
                [
                    '--foo',
                    '--',
                    'bar',
                ],
                '',
                [
                    'foo',
                ],
            ),
        );
    }

    public function testRaisesAnExceptionForUnknownLongOption(): void
    {
        $this->expectException(UnknownOptionException::class);
        $this->expectExceptionMessage('Unknown option "--foo". Most similar options are --colors');

        (new Parser)->parse(
            [
                'command',
                '--foo',
            ],
            '',
            ['colors'],
        );
    }

    public function testRaisesAnExceptionForUnknownLongOptionMultipleAlternatives(): void
    {
        $this->expectException(UnknownOptionException::class);
        $this->expectExceptionMessage('Unknown option "--foo". Most similar options are --colors, --exec, --help, --config, --column');

        (new Parser)->parse(
            [
                'command',
                '--foo',
            ],
            '',
            ['colors', 'columns', 'verbose', 'help', 'version', 'output', 'config', 'exec'],
        );
    }

    public function testRaisesAnExceptionForUnknownShortOption(): void
    {
        $this->expectException(UnknownOptionException::class);
        $this->expectExceptionMessage('Unknown option "-v"');

        (new Parser)->parse(
            [
                'command',
                'myArgument',
                '-v',
            ],
            '',
        );
    }

    public function testRaisesAnExceptionWhenRequiredArgumentForLongOptionIsMissing(): void
    {
        $this->expectException(RequiredOptionArgumentMissingException::class);
        $this->expectExceptionMessage('Required argument for option "--foo" is missing');

        (new Parser)->parse(
            [
                'command',
                '--foo',
            ],
            '',
            ['foo='],
        );
    }

    public function testRaisesAnExceptionWhenRequiredArgumentForShortOptionIsMissing(): void
    {
        $this->expectException(RequiredOptionArgumentMissingException::class);
        $this->expectExceptionMessage('Required argument for option "-f" is missing');

        (new Parser)->parse(
            [
                'command',
                'myArgument',
                '-f',
            ],
            'f:',
        );
    }

    public function testRaisesAnExceptionWhenLongOptionIsAmbiguous(): void
    {
        $this->expectException(AmbiguousOptionException::class);
        $this->expectExceptionMessage('Option "--col" is ambiguous. Similar options are: --colors, --columns');

        (new Parser)->parse(
            [
                'command',
                '--col',
            ],
            '',
            ['columns', 'colors'],
        );
    }

    public function testRaisesAnExceptionWhenAnArgumentIsGivenForLongOptionThatDoesNotAllowAnArgument(): void
    {
        $this->expectException(OptionDoesNotAllowArgumentException::class);
        $this->expectExceptionMessage('Option "--foo" does not allow an argument');

        (new Parser)->parse(
            [
                'command',
                '--foo=bar',
            ],
            '',
            ['foo'],
        );
    }
}
