<?php

namespace App\Jobs;

use App\Models\DocumentVersion;
use App\Services\KnowledgeBase\IngestionService;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Log;
use Throwable;

/**
 * ProcessUploadedDocumentJob
 *
 * Job utama untuk proses dokumen selepas upload.
 * Melaksanakan: extract PDF → chunk → embed → sync Qdrant
 *
 * Dihantar ke queue supaya upload tidak timeout.
 * Retry: 2 kali jika gagal, dengan 60s delay.
 */
class ProcessUploadedDocumentJob implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public int $tries = 2;
    public int $backoff = 60; // saat antara retry
    public int $timeout = 600; // 10 minit — PDF besar mungkin ambil masa

    public function __construct(
        private readonly int $documentVersionId
    ) {
        $this->onQueue(config('knowledgebase.queue.ingestion', 'default'));
    }

    public function handle(IngestionService $ingestionService): void
    {
        $version = DocumentVersion::with(['document.category'])->findOrFail($this->documentVersionId);

        Log::info("ProcessUploadedDocumentJob mula untuk version {$this->documentVersionId}");

        $ingestionService->processDocumentVersion($version);

        Log::info("ProcessUploadedDocumentJob selesai untuk version {$this->documentVersionId}");
    }

    public function failed(Throwable $exception): void
    {
        Log::error("ProcessUploadedDocumentJob GAGAL untuk version {$this->documentVersionId}", [
            'error' => $exception->getMessage(),
            'trace' => $exception->getTraceAsString(),
        ]);

        // Kemaskini status ke failed dalam database
        $version = DocumentVersion::find($this->documentVersionId);
        if ($version) {
            $version->updateStatus(
                DocumentVersion::STATUS_FAILED,
                'Job gagal: ' . $exception->getMessage()
            );
        }
    }
}