<?php

namespace App\Http\Controllers;

use App\Models\Document;
use App\Models\DocumentAccess;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use Symfony\Component\HttpFoundation\StreamedResponse;

class DocumentController extends Controller
{
    /**
     * Download a document by ID.
     */
    public function download(Request $request, int $id): StreamedResponse
    {
        $document = Document::findOrFail($id);

        // Files are stored in public disk (storage/app/public/documents/)
        // Check if file exists
        if (!Storage::disk('public')->exists($document->file_path)) {
            abort(404, 'Document file not found.');
        }

        // Record the access before streaming, so the dashboard reflects it.
        // Only successful downloads reach this point, which matches how the
        // historical nginx rows were filtered (status 200 only).
        DocumentAccess::create([
            'document_id' => $document->id,
            'accessed_at' => now(),
            'ip_address' => $request->ip(),
            'user_agent' => $request->userAgent(),
            'source' => 'live',
        ]);

        // Stream the file to the browser
        return Storage::disk('public')->download(
            $document->file_path,
            $document->original_filename,
            [
                'Content-Type' => $document->mime_type,
                'Content-Disposition' => 'inline; filename="' . $document->original_filename . '"',
            ]
        );
    }
}