<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Http;
use Spatie\RouteAttributes\Attributes\Any;
use Spatie\RouteAttributes\Attributes\Middleware;
use Spatie\RouteAttributes\Attributes\Where;

#[Middleware('web')]
class ApiProxyController extends Controller
{
    private const SERVICES = [
        'markitdown'    => 'http://api-markitdown:8000',
        'docling'       => 'http://api-docling:8000',
        'unlimited-ocr' => 'http://api-unlimited-ocr:8000',
    ];

    #[Any('/api/{service}/{path?}')]
    #[Where('path', '.*')]
    public function proxy(Request $request, string $service, string $path = '')
    {
        $base = self::SERVICES[$service] ?? abort(404, "Unknown service: $service");

        $url = rtrim($base, '/') . '/' . ltrim($path, '/');
        if ($qs = $request->getQueryString()) {
            $url .= '?' . $qs;
        }

        $http = Http::timeout(300)->withoutVerifying();

        if ($request->hasFile('file')) {
            $file = $request->file('file');
            $response = $http
                ->attach('file', file_get_contents($file->getRealPath()), $file->getClientOriginalName())
                ->post($url);
        } else {
            $contentType = $request->header('Content-Type', 'application/json');
            $response = $http
                ->withHeaders(['Content-Type' => $contentType])
                ->withBody($request->getContent(), $contentType)
                ->send($request->method(), $url);
        }

        return response($response->body(), $response->status())
            ->header('Content-Type', $response->header('Content-Type', 'application/json'));
    }
}