<?php

declare(strict_types=1);

namespace Diffhead\PHP\DataEnrichmentKit\Tests;

use Diffhead\PHP\DataEnrichmentKit\Builder;
use Diffhead\PHP\DataEnrichmentKit\Exception\TargetIsNull;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\CoversMethod;
use PHPUnit\Framework\TestCase;

#[CoversClass(Builder::class)]
#[CoversMethod(Builder::class, 'withTarget')]
#[CoversMethod(Builder::class, 'item')]
#[CoversMethod(Builder::class, 'target')]
#[CoversMethod(Builder::class, 'build')]
class BuilderTest extends TestCase
{
    public function testBuildingWithTarget(): void
    {
        $builder = Builder::withTarget('entity', 'field');

        $this->assertInstanceOf(Builder::class, $builder);
    }

    public function testItemsInsideTheRequest(): void
    {
        $builder = new Builder();
        $builder->item('key', 'alias');

        $request = $builder->target('entity', 'field')->build();

        $this->assertCount(1, $request->items()->getIterator());
        $this->assertEquals('key', $request->items()->getIterator()[0]->key());
        $this->assertEquals('alias', $request->items()->getIterator()[0]->alias());
    }

    public function testTargetInsideTheRequest(): void
    {
        $builder = new Builder();
        $builder->target('entity', 'field');

        $request = $builder->build();

        $this->assertEquals('entity', $request->target()->entity());
        $this->assertEquals('field', $request->target()->field());
    }

    public function testBuildThrowsExceptionWhenTargetIsNull(): void
    {
        $this->expectException(TargetIsNull::class);

        $builder = new Builder();
        $builder->build();
    }
}