<?php

declare(strict_types=1);

namespace App\Tests\Unit\Scolarite\Application\Command\TruncateSlotRecurrence;

use App\Administration\Domain\Model\SchoolClass\ClassId;
use App\Administration\Domain\Model\Subject\SubjectId;
use App\Administration\Domain\Model\User\UserId;
use App\Scolarite\Application\Command\TruncateSlotRecurrence\TruncateSlotRecurrenceCommand;
use App\Scolarite\Application\Command\TruncateSlotRecurrence\TruncateSlotRecurrenceHandler;
use App\Scolarite\Domain\Exception\DateExceptionInvalideException;
use App\Scolarite\Domain\Model\Schedule\DayOfWeek;
use App\Scolarite\Domain\Model\Schedule\ScheduleSlot;
use App\Scolarite\Domain\Model\Schedule\TimeSlot;
use App\Scolarite\Infrastructure\Persistence\InMemory\InMemoryScheduleSlotRepository;
use App\Shared\Domain\Clock;
use App\Shared\Domain\Tenant\TenantId;
use DateTimeImmutable;
use PHPUnit\Framework\Attributes\Test;
use PHPUnit\Framework\TestCase;

final class TruncateSlotRecurrenceHandlerTest extends TestCase
{
    private const string TENANT_ID = '550e8400-e29b-41d4-a716-446655440001';
    private const string CLASS_ID = '550e8400-e29b-41d4-a716-446655440020';
    private const string SUBJECT_ID = '550e8400-e29b-41d4-a716-446655440030';
    private const string TEACHER_ID = '550e8400-e29b-41d4-a716-446655440010';
    private const string UPDATER_ID = '550e8400-e29b-41d4-a716-446655440099';

    private InMemoryScheduleSlotRepository $slotRepository;
    private TruncateSlotRecurrenceHandler $handler;

    protected function setUp(): void
    {
        $this->slotRepository = new InMemoryScheduleSlotRepository();

        $clock = new class implements Clock {
            public function now(): DateTimeImmutable
            {
                return new DateTimeImmutable('2026-10-01 10:00:00');
            }
        };

        $this->handler = new TruncateSlotRecurrenceHandler(
            $this->slotRepository,
            $clock,
        );
    }

    #[Test]
    public function truncatesRecurrenceOneDayBeforeGivenDate(): void
    {
        $slot = $this->createAndSaveSlot(
            recurrenceStart: new DateTimeImmutable('2026-09-01'),
            recurrenceEnd: new DateTimeImmutable('2027-07-04'),
        );

        $command = new TruncateSlotRecurrenceCommand(
            tenantId: self::TENANT_ID,
            slotId: (string) $slot->id,
            fromDate: '2026-10-05',
            updatedBy: self::UPDATER_ID,
        );

        ($this->handler)($command);

        $tenantId = TenantId::fromString(self::TENANT_ID);
        $updated = $this->slotRepository->get($slot->id, $tenantId);
        self::assertSame('2026-10-04', $updated->recurrenceEnd->format('Y-m-d'));
    }

    #[Test]
    public function throwsWhenDateIsNotActiveForSlot(): void
    {
        $slot = $this->createAndSaveSlot(
            recurrenceStart: new DateTimeImmutable('2026-09-01'),
            recurrenceEnd: new DateTimeImmutable('2026-09-28'),
        );

        $command = new TruncateSlotRecurrenceCommand(
            tenantId: self::TENANT_ID,
            slotId: (string) $slot->id,
            fromDate: '2026-10-05',
            updatedBy: self::UPDATER_ID,
        );

        $this->expectException(DateExceptionInvalideException::class);
        ($this->handler)($command);
    }

    private function createAndSaveSlot(
        ?DateTimeImmutable $recurrenceStart = null,
        ?DateTimeImmutable $recurrenceEnd = null,
    ): ScheduleSlot {
        $slot = ScheduleSlot::creer(
            tenantId: TenantId::fromString(self::TENANT_ID),
            classId: ClassId::fromString(self::CLASS_ID),
            subjectId: SubjectId::fromString(self::SUBJECT_ID),
            teacherId: UserId::fromString(self::TEACHER_ID),
            dayOfWeek: DayOfWeek::MONDAY,
            timeSlot: new TimeSlot('08:00', '09:00'),
            room: null,
            isRecurring: true,
            now: new DateTimeImmutable('2026-09-01 10:00:00'),
            recurrenceStart: $recurrenceStart,
            recurrenceEnd: $recurrenceEnd,
        );

        $this->slotRepository->save($slot);

        return $slot;
    }
}