<?php

declare(strict_types=1);

namespace App\Tests\Entity;

use App\Entity\StaffingRule;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\TestCase;
use Symfony\Component\Validator\Constraints\Callback;
use Symfony\Component\Validator\Validation;

class StaffingRuleTest extends TestCase
{
    public function testTheProductCodeIsNormalized(): void
    {
        $this->assertSame('DPWAST', (new StaffingRule())->setProductCode(' dpwast ')->getProductCode());
        $this->assertNull((new StaffingRule())->setProductCode('  ')->getProductCode());
    }

    #[DataProvider('combinations')]
    public function testTheCombinationIsValidated(StaffingRule $rule, array $expectedPaths): void
    {
        $violations = Validation::createValidator()->validate($rule, new Callback('validateCombination'));

        $paths = [];

        foreach ($violations as $violation) {
            $paths[] = $violation->getPropertyPath();
        }

        $this->assertSame($expectedPaths, $paths);
    }

    public static function combinations(): iterable
    {
        yield 'guides only' => [self::rule(2), []];
        yield 'both levels taken over, a guide each' => [self::rule(2, beginner: true, advanced: true, splitBeginner: true, splitAdvanced: true), []];
        yield 'one guide takes over one of two levels' => [self::rule(1, beginner: true, advanced: true, splitAdvanced: true), []];
        yield 'more levels taken over than guides' => [self::rule(1, beginner: true, advanced: true, splitBeginner: true, splitAdvanced: true), ['guides']];
        yield 'taking over a level that is off' => [self::rule(2, advanced: true, splitBeginner: true), ['splitBeginner']];
        yield 'guiding without a guide' => [self::rule(0, beginner: true, guiding: true), ['guiding']];
        yield 'courses without guides' => [self::rule(0, beginner: true), []];
    }

    private static function rule(
        int $guides,
        bool $beginner = false,
        bool $advanced = false,
        bool $splitBeginner = false,
        bool $splitAdvanced = false,
        bool $guiding = false,
    ): StaffingRule {
        return (new StaffingRule())
            ->setProductCode('DKIMP')
            ->setGuides($guides)
            ->setSkiBeginner($beginner)
            ->setSkiAdvanced($advanced)
            ->setSplitBeginner($splitBeginner)
            ->setSplitAdvanced($splitAdvanced)
            ->setGuiding($guiding)
        ;
    }
}