<?php

namespace App\Http\Controllers;

use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\URL;
use Illuminate\View\View;

class FileLinkController extends Controller
{
    public function index(): View
    {
        return view('files.index', [
            'enabled' => config('file_links.enabled'),
        ]);
    }

    public function uploadWeb(Request $request)
    {
        if (!config('file_links.enabled')) {
            return redirect()->route('files.index')->withErrors(['file' => 'Функционал отключен']);
        }

        $data = $this->storeAndBuildTemporaryLink($request);

        return redirect()->route('files.index')->with([
            'file_link' => $data['url'],
            'file_expires_at' => $data['expiresAt'],
        ]);
    }

    public function upload(Request $request): JsonResponse
    {
        if (!config('file_links.enabled')) {
            return response()->json(['message' => 'Функционал отключен'], Response::HTTP_NOT_FOUND);
        }

        $data = $this->storeAndBuildTemporaryLink($request);

        return response()->json([
            'path' => $data['path'],
            'expiresAt' => $data['expiresAt'],
            'url' => $data['url'],
        ]);
    }

    public function download(string $path)
    {
        if (!config('file_links.enabled')) {
            abort(Response::HTTP_NOT_FOUND);
        }

        $disk = config('file_links.disk');

        if (!Storage::disk($disk)->exists($path)) {
            abort(Response::HTTP_NOT_FOUND);
        }

        return Storage::disk($disk)->download($path);
    }

    private function storeAndBuildTemporaryLink(Request $request): array
    {
        $request->validate([
            'file' => 'required|file|max:' . config('file_links.max_size_kb'),
        ]);

        $disk = config('file_links.disk');
        $directory = config('file_links.directory');
        $path = $request->file('file')->store($directory, $disk);
        $expiresAt = now()->addHour();

        return [
            'path' => $path,
            'expiresAt' => $expiresAt->toIso8601String(),
            'url' => URL::temporarySignedRoute('files.download', $expiresAt, ['path' => $path]),
        ];
    }
}