<?php

declare(strict_types=1);

namespace App\Tests\Service\Notification;

use App\Service\Notification\WorkingDayCalculator;
use App\Service\PublicHolidayServiceInterface;
use DateTimeImmutable;
use PHPUnit\Framework\TestCase;

/**
 * @internal
 */
final class WorkingDayCalculatorTest extends TestCase
{
    public function testWeekdayIsWorkingDay(): void
    {
        // Mardi 08/07/2025
        self::assertTrue($this->calculator()->isWorkingDay(new DateTimeImmutable('2025-07-08')));
    }

    public function testSaturdayAndSundayAreNotWorkingDays(): void
    {
        self::assertFalse($this->calculator()->isWorkingDay(new DateTimeImmutable('2025-07-12'))); // samedi
        self::assertFalse($this->calculator()->isWorkingDay(new DateTimeImmutable('2025-07-13'))); // dimanche
    }

    public function testPublicHolidayIsNotWorkingDay(): void
    {
        self::assertFalse($this->calculator()->isWorkingDay(new DateTimeImmutable('2025-07-14'))); // lundi férié
    }

    public function testNextWorkingDayFromWeekdayIsTomorrow(): void
    {
        // Mardi 08/07 -> Mercredi 09/07
        self::assertSame(
            '2025-07-09',
            $this->calculator()->nextWorkingDay(new DateTimeImmutable('2025-07-08'))->format('Y-m-d')
        );
    }

    public function testNextWorkingDayFromFridaySkipsWeekend(): void
    {
        // Vendredi 11/07 -> lundi 14/07 est férié -> mardi 15/07
        self::assertSame(
            '2025-07-15',
            $this->calculator()->nextWorkingDay(new DateTimeImmutable('2025-07-11'))->format('Y-m-d')
        );
    }

    private function calculator(): WorkingDayCalculator
    {
        $holidays = $this->createStub(PublicHolidayServiceInterface::class);
        $holidays->method('getHolidaysDayByYears')->willReturn([
            // Lundi 14/07/2025 férié
            '2025-07-14' => 'Fête nationale',
        ]);

        return new WorkingDayCalculator($holidays);
    }
}