<?php

/*
 * Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
 * SPDX-License-Identifier: MIT
 */

declare(strict_types=1);

namespace Respect\Validation\Rules;

use DateTimeImmutable;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\Attributes\Group;
use PHPUnit\Framework\Attributes\Test;
use Respect\Validation\Exceptions\InvalidRuleConstructorException;
use Respect\Validation\Test\Rules\Stub;
use Respect\Validation\Test\RuleTestCase;
use Respect\Validation\Validatable;
use Respect\Validation\Validator;

use function array_map;
use function iterator_to_array;

#[Group('rule')]
#[CoversClass(DateTimeDiff::class)]
final class DateTimeDiffTest extends RuleTestCase
{
    #[Test]
    public function isShouldThrowAnExceptionWhenTypeIsNotValid(): void
    {
        $this->expectException(InvalidRuleConstructorException::class);
        $this->expectExceptionMessageMatches('/"invalid" is not a valid type of age \(Available: .+\)/');

        // @phpstan-ignore-next-line
        new DateTimeDiff('invalid', Stub::daze());
    }

    #[Test]
    #[DataProvider('providerForSiblingSuitableRules')]
    public function isShouldAcceptRulesThatCanBeAddedAsNextSibling(Validatable $rule): void
    {
        $this->expectNotToPerformAssertions();

        new DateTimeDiff('years', $rule);
    }

    #[Test]
    #[DataProvider('providerForSiblingUnsuitableRules')]
    public function isShouldNotAcceptRulesThatCanBeAddedAsNextSibling(Validatable $rule): void
    {
        $this->expectException(InvalidRuleConstructorException::class);
        $this->expectExceptionMessage('DateTimeDiff must contain exactly one rule');

        new DateTimeDiff('years', $rule);
    }

    /** @return array<array{Validatable}> */
    public static function providerForSiblingSuitableRules(): array
    {
        return [
            'single' => [Stub::daze()],
            'single in validator' => [Validator::create(Stub::daze())],
            'single wrapped by "Not"' => [new Not(Stub::daze())],
            'validator wrapping not, wrapping single' => [Validator::create(new Not(Stub::daze()))],
            'not wrapping validator, wrapping single' => [new Not(Validator::create(Stub::daze()))],
        ];
    }

    /** @return array<array{Validatable}> */
    public static function providerForSiblingUnsuitableRules(): array
    {
        return [
            'double wrapped by validator' => [Validator::create(Stub::daze(), Stub::daze())],
            'double wrapped by validator, wrapped by "Not"' => [new Not(Validator::create(Stub::daze(), Stub::daze()))],
        ];
    }

    /** @return array<string|int, array{DateTimeDiff, mixed}> */
    public static function providerForValidInput(): array
    {
        return [
            'years + DateTime' => [new DateTimeDiff('years', Stub::pass(1)), new DateTimeImmutable()],
            'years + string' => [new DateTimeDiff('years', Stub::pass(1)), '2020-01-01'],
            'years + string + format' => [new DateTimeDiff('years', Stub::pass(1), 'Y-m-d'), '2020-01-01'],
            'years + string + format + now' => [
                new DateTimeDiff('years', Stub::pass(1), 'Y-m-d', new DateTimeImmutable()),
                '2020-01-01',
            ],
            'years + string + now' => [
                new DateTimeDiff('years', Stub::pass(1), null, new DateTimeImmutable()),
                '2020-01-01',
            ],
            'years + DateTime + now' => [
                new DateTimeDiff('years', Stub::pass(1), null, new DateTimeImmutable()),
                new DateTimeImmutable(),
            ],
            'months + DateTime' => [new DateTimeDiff('months', Stub::pass(1)), new DateTimeImmutable()],
            'days + DateTime' => [new DateTimeDiff('days', Stub::pass(1)), new DateTimeImmutable()],
            'hours + DateTime' => [new DateTimeDiff('hours', Stub::pass(1)), new DateTimeImmutable()],
            'minutes + DateTime' => [new DateTimeDiff('minutes', Stub::pass(1)), new DateTimeImmutable()],
            'seconds + DateTime' => [new DateTimeDiff('seconds', Stub::pass(1)), new DateTimeImmutable()],
            'microseconds + DateTime' => [new DateTimeDiff('microseconds', Stub::pass(1)), new DateTimeImmutable()],
        ];
    }

    /** @return array<string|int, array{DateTimeDiff, mixed}> */
    public static function providerForInvalidInput(): array
    {
        return [
            'valid date, with failing rule' => [
                new DateTimeDiff('years', Stub::fail(1)),
                new DateTimeImmutable(),
            ],
            'invalid date, with passing rule' => [
                new DateTimeDiff('years', Stub::pass(1), 'Y-m-d'),
                'invalid date',
            ],
            'invalid date, with failing rule' => [
                new DateTimeDiff('years', Stub::fail(1), 'Y-m-d'),
                'invalid date',
            ],
        ] + array_map(
            static fn (array $args): array => [new DateTimeDiff('years', Stub::fail(1)), new DateTimeImmutable()],
            iterator_to_array(self::providerForNonScalarValues())
        );
    }
}