<?php

declare(strict_types=1);

namespace Diffhead\PHP\DataEnrichmentKit\Tests\Service;

use Diffhead\PHP\DataEnrichmentKit\Interface\Serializer as SerializerInterface;
use Diffhead\PHP\DataEnrichmentKit\Object\Item;
use Diffhead\PHP\DataEnrichmentKit\Object\ItemsBag;
use Diffhead\PHP\DataEnrichmentKit\Object\Request;
use Diffhead\PHP\DataEnrichmentKit\Object\Target;
use Diffhead\PHP\DataEnrichmentKit\Service\Serializer;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\CoversMethod;
use PHPUnit\Framework\TestCase;

#[CoversClass(Serializer::class)]
#[CoversMethod(Serializer::class, 'toString')]
class SerializerTest extends TestCase
{
    public function testImplementsSerializerInterface(): void
    {
        $this->assertInstanceOf(SerializerInterface::class, new Serializer());
    }

    public function testToString(): void
    {
        $itemsBag = new ItemsBag();
        $itemsBag->push(new Item('key1', 'alias1'));
        $itemsBag->push(new Item('key2', 'alias2'));

        $target = new Target('entity', 'field');
        $request = new Request($itemsBag, $target);

        $serializer = new Serializer();
        $result = $serializer->toString($request);

        $this->assertEquals('key1+alias1,key2+alias2@entity,field', $result);
    }

    public function testToStringWithEmptyAlias(): void
    {
        $itemsBag = new ItemsBag();
        $itemsBag->push(new Item('key1'));
        $itemsBag->push(new Item('key2', 'alias2'));

        $target = new Target('entity', 'field');
        $request = new Request($itemsBag, $target);

        $serializer = new Serializer();
        $result = $serializer->toString($request);

        $this->assertEquals('key1,key2+alias2@entity,field', $result);
    }
}