<?php

declare(strict_types=1);

namespace Tests\Unit\Domain\Models\ValueObjects\Stock;

use Domain\Models\ValueObjects\Actor\ActorId;
use Domain\Models\ValueObjects\Stock\StockAdjustment;

covers(StockAdjustment::class);

describe('stock adjustment', function (): void {
    $quantity         = 10;
    $zeroQuantity     = 0;
    $negativeQuantity = -5;
    $reason           = 'Inventory correction';

    it('creates a valid stock adjustment', function () use ($quantity, $reason): void {
        // GIVEN
        $actorId = ActorId::generate();

        // WHEN
        $adjustment = new StockAdjustment(
            $quantity,
            $reason,
            $actorId,
        );

        // THEN
        expect($adjustment)->toBeInstanceOf(StockAdjustment::class)
            ->and($adjustment->quantity)->toBe($quantity)
            ->and($adjustment->reason)->toBe($reason)
            ->and($adjustment->actorId)->toBe($actorId)
            ->and($adjustment->createdAt)->toBeNull();
    });

    it('creates a stock adjustment with an explicit createdAt date', function () use ($quantity, $reason): void {
        // GIVEN
        $actorId   = ActorId::generate();
        $createdAt = new \DateTimeImmutable('2026-06-15 12:00:00', new \DateTimeZone('UTC'));

        // WHEN
        $adjustment = new StockAdjustment(
            $quantity,
            $reason,
            $actorId,
            $createdAt,
        );

        // THEN
        expect($adjustment->createdAt)->toBe($createdAt);
    });

    it('rejects a quantity of zero', function () use ($zeroQuantity, $reason): void {
        // GIVEN
        $actorId = ActorId::generate();

        // WHEN
        $action = fn (): StockAdjustment => new StockAdjustment(
            $zeroQuantity,
            $reason,
            $actorId,
        );

        // THEN
        expect($action)->toThrow(\DomainException::class, 'Stock Amount should be more than 0.');
    });

    it('rejects a negative quantity', function () use ($negativeQuantity, $reason): void {
        // GIVEN
        $actorId = ActorId::generate();

        // WHEN
        $action = fn (): StockAdjustment => new StockAdjustment(
            $negativeQuantity,
            $reason,
            $actorId,
        );

        // THEN
        expect($action)->toThrow(\DomainException::class, 'Stock Amount should be more than 0.');
    });
});