<?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 {
    beforeEach(function (): void {
        $this->quantity         = 10;
        $this->zeroQuantity     = 0;
        $this->negativeQuantity = -5;
        $this->reason           = 'Inventory correction';
    });

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

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

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

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

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

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

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

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

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

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

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

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