<?php

namespace Tests\Feature;

use App\Models\Document;
use App\Models\User;
use App\Services\DocumentPdfPreviewService;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Storage;
use Tests\TestCase;

class DocumentPreviewServiceTest extends TestCase
{
    use RefreshDatabase;

    protected DocumentPdfPreviewService $previewService;

    protected function setUp(): void
    {
        parent::setUp();
        $this->previewService = new DocumentPdfPreviewService();
        Storage::fake('local');
        Storage::fake('previews');
        config(['scout.driver' => 'null']);
    }

    public function test_可以检查文档是否支持_pdf_预览(): void
    {
        $user = User::factory()->create();

        $document = Document::factory()->create([
            'conversion_status' => 'completed',
            'file_path' => 'documents/test.pdf',
            'file_name' => 'test.pdf',
            'mime_type' => 'application/pdf',
            'uploaded_by' => $user->id,
        ]);

        Storage::disk('local')->put($document->file_path, '%PDF-1.4 test');

        $this->assertTrue($this->previewService->canPreview($document));

        $document2 = Document::factory()->create([
            'conversion_status' => 'pending',
            'file_path' => 'documents/pending.pdf',
            'file_name' => 'pending.pdf',
            'mime_type' => 'application/pdf',
            'uploaded_by' => $user->id,
        ]);

        Storage::disk('local')->put($document2->file_path, '%PDF-1.4 test');

        $this->assertFalse($this->previewService->canPreview($document2));
    }

    public function test_文档不存在时抛出异常(): void
    {
        $user = User::factory()->create();
        $document = Document::factory()->create([
            'conversion_status' => 'completed',
            'file_path' => 'documents/2024/01/01/nonexistent.pdf',
            'file_name' => 'nonexistent.pdf',
            'mime_type' => 'application/pdf',
            'uploaded_by' => $user->id,
        ]);

        $this->expectException(\RuntimeException::class);
        $this->expectExceptionMessage('文档尚未完成转换或原文件不存在');

        $this->previewService->getPreviewPath($document);
    }

    public function test_非_pdf_文件在缺少_libreoffice_时给出明确错误(): void
    {
        $user = User::factory()->create();
        $document = Document::factory()->create([
            'conversion_status' => 'completed',
            'file_path' => 'documents/test.docx',
            'file_name' => 'test.docx',
            'mime_type' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
            'uploaded_by' => $user->id,
        ]);

        Storage::disk('local')->put($document->file_path, 'fake-docx-content');

        $this->expectException(\RuntimeException::class);
        $this->expectExceptionMessage('LibreOffice');

        $this->previewService->getPreviewPath($document);
    }
}