<?php

namespace App\Http\Controllers\Api;

use App\Exceptions\RuntimeException;
use Illuminate\Http\Request;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;
use Illuminate\Validation\Rules\File;

class FileUploadController extends Controller
{
    public function __invoke(Request $request)
    {
        $request->validate(
            rules: [
                'file' => [
                    'bail',
                    'required',
                    File::types(['image/jpeg', 'image/png'])
                        ->extensions(['jpg', 'jpeg', 'png'])
                        ->max(20 * 1024),
                ],
            ],
            attributes: [
                'file' => '文件',
            ],
        );

        /** @var \Illuminate\Http\UploadedFile */
        $file = $request->file('file');

        if ($path = $file->storeAs(date('Ymd'), $this->filename($file))) {
            return [
                'url' => Storage::url($path),
            ];
        }

        throw new RuntimeException('上传失败，请重试');
    }

    protected function filename(UploadedFile $file): string
    {
        $hash = Str::random(40);

        $extension = '';

        if ($originalExtension = $file->getClientOriginalExtension()) {
            $extension = '.'.$originalExtension;
        } elseif ($guessExtension = $this->guessExtension()) {
            $extension = '.'.$guessExtension;
        }

        return $hash.$extension;
    }
}