<?php

namespace Tests\Unit\Element\UseCases;

use App\Element\CreateElementDto;
use App\Element\Element;
use App\Element\UseCases\UpdateElement\UpdateElementPdf;
use App\Element\UseCases\UpdateElement\UpdateElementPdfRequest;
use App\Exceptions\BadRequestException;
use App\Exceptions\NotFoundException;
use App\Set\Set as DomainSet;
use Tests\Fakes\FakeElementRepository;
use Tests\Fakes\FakeFileUploader;
use Tests\TestCase;

class UpdateElementPdfTest extends TestCase
{
    private FakeElementRepository $elementRepository;

    private FakeFileUploader $fileUploader;

    private UpdateElementPdf $useCase;

    protected function setUp(): void
    {
        $this->elementRepository = new FakeElementRepository();
        $this->fileUploader = new FakeFileUploader();
        $this->useCase = new UpdateElementPdf(
            $this->elementRepository,
            $this->fileUploader,
        );
    }

    /**
     * @return array{
     *     pdfContents: string,
     *     pdfOriginalName: string,
     *     pdfMimeType: string,
     *     pdfSizeBytes: int
     * }
     */
    private function pdfArgs(): array
    {
        return [
            'pdfContents' => 'binary-pdf-bytes',
            'pdfOriginalName' => 'baderech.pdf',
            'pdfMimeType' => 'application/pdf',
            'pdfSizeBytes' => 1024,
        ];
    }

    public function testUploadsPdfAndStoresPath(): void
    {
        $element = $this->createElement();

        $updatedElement = $this->useCase->execute(
            new UpdateElementPdfRequest(
                ...$this->pdfArgs(),
                id: $element->getId(),
            )
        );

        $this->assertSame(
            'element-pdfs/fake-baderech.pdf',
            $updatedElement->getPdfPath(),
        );
        $storedElement = $this->elementRepository->find($element->getId());
        $this->assertNotNull($storedElement);
        $this->assertSame(
            'element-pdfs/fake-baderech.pdf',
            $storedElement->getPdfPath(),
        );
        $this->assertSame(
            'element-pdfs',
            $this->fileUploader->uploads[0]['folder'],
        );
    }

    public function testNullIdThrowsBadRequest(): void
    {
        $this->expectException(BadRequestException::class);
        $this->expectExceptionMessage('id is required');

        $this->useCase->execute(
            new UpdateElementPdfRequest(
                ...$this->pdfArgs(),
                id: null,
            )
        );
    }

    public function testNullPdfThrowsBadRequest(): void
    {
        $this->expectException(BadRequestException::class);
        $this->expectExceptionMessage('pdf is required');

        $this->useCase->execute(
            new UpdateElementPdfRequest(
                id: 1,
                pdfContents: null,
                pdfOriginalName: null,
                pdfMimeType: null,
                pdfSizeBytes: null,
            )
        );
    }

    public function testDisallowedMimeThrowsBadRequest(): void
    {
        $this->expectException(BadRequestException::class);
        $this->expectExceptionMessage('pdf must be a pdf file');

        $this->useCase->execute(
            new UpdateElementPdfRequest(
                id: 1,
                pdfContents: 'not-a-pdf',
                pdfOriginalName: 'icon.png',
                pdfMimeType: 'image/png',
                pdfSizeBytes: 1024,
            )
        );
    }

    public function testOversizedPdfThrowsBadRequest(): void
    {
        $this->expectException(BadRequestException::class);
        $this->expectExceptionMessage('pdf must be 10MB or smaller');

        $this->useCase->execute(
            new UpdateElementPdfRequest(
                id: 1,
                pdfContents: 'big',
                pdfOriginalName: 'baderech.pdf',
                pdfMimeType: 'application/pdf',
                pdfSizeBytes: 11 * 1024 * 1024,
            )
        );
    }

    public function testMissingElementThrowsNotFound(): void
    {
        $this->expectException(NotFoundException::class);
        $this->expectExceptionMessage('Element not found');

        $this->useCase->execute(
            new UpdateElementPdfRequest(
                ...$this->pdfArgs(),
                id: 999,
            )
        );
    }

    private function createElement(): Element
    {
        $set = new DomainSet(
            id: 1,
            name: 'Baderech',
            description: 'Baderech description',
            iconImageUrl: '/assets/baderech-icon.png',
        );

        return $this->elementRepository->create(new CreateElementDto(
            set: $set,
            title: 'Original title',
            description: 'Original description',
            iconImageUrl: null,
            richText: '',
            pdfPath: null,
            youtubeUrl: null,
            parentElement: null,
        ));
    }
}