<?php

declare(strict_types=1);

namespace Diffhead\PHP\DataEnrichmentKit\Tests;

use Diffhead\PHP\DataEnrichmentKit\Enricher;
use Diffhead\PHP\DataEnrichmentKit\Interface\Repository;
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\Enrichment;
use Diffhead\PHP\DataEnrichmentKit\Storage\Repositories;
use Diffhead\PHP\DataEnrichmentKit\Storage\Requests;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\TestCase;

#[CoversClass(Enricher::class)]
class EnricherTest extends TestCase
{
    public function testEnrich(): void
    {
        $posts = [
            [
                'user_id' => 1,
                'content' => 'Post by user 1'
            ],
            [
                'user_id' => 2,
                'content' => 'Post by user 2'
            ],
            [
                'user_id' => 3,
                'content' => 'Post by user 3'
            ],
        ];

        $enrichment = new Enrichment($this->getRepositories());
        $enricher = new Enricher($enrichment);

        $items = new ItemsBag();
        $items->push(new Item('*.user_id', 'user'));

        $target = new Target('user', 'id');

        $requests = new Requests([
            new Request($items, $target)
        ]);

        $enriched = $enricher->enrich($posts, $requests);

        $this->assertSame(
            [
                'user_id' => 1,
                'content' => 'Post by user 1',
                'user' => [
                    'id' => 1,
                    'name' => 'Blank.1',
                ],
            ],
            $enriched[0]
        );

        $this->assertSame(
            [
                'user_id' => 2,
                'content' => 'Post by user 2',
                'user' => [
                    'id' => 2,
                    'name' => 'Blank.2',
                ],
            ],
            $enriched[1]
        );

        $this->assertSame(
            [
                'user_id' => 3,
                'content' => 'Post by user 3',
                'user' => [
                    'id' => 3,
                    'name' => 'Blank.3',
                ],
            ],
            $enriched[2]
        );
    }

    private function getRepositories(): Repositories
    {
        return new Repositories([
            'user' => new EnricherTestUserRepository(),
        ]);
    }
}

class EnricherTestUserRepository implements Repository
{
    public function getByFieldValues(string $field, array $values): iterable
    {
        return [
            $this->getBlankWithId(1),
            $this->getBlankWithId(2),
            $this->getBlankWithId(3),
        ];
    }

    private function getBlankWithId(int $id): array
    {
        return [
            'id' => $id,
            'name' => sprintf('Blank.%d', $id)
        ];
    }
}