AndyTranscribe/app/Http/Requests/StoreRecordingRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Http\UploadedFile;
use Illuminate\Validation\Rules\File;

class StoreRecordingRequest extends FormRequest
{
    /**
     * Popular audio extensions Whisper-compatible providers typically accept.
     *
     * @var list<string>
     */
    public const AUDIO_EXTENSIONS = [
        'mp3',
        'mpeg',
        'mpga',
        'wav',
        'ogg',
        'oga',
        'flac',
        'm4a',
        'mp4',
        'aac',
        'webm',
        'wma',
        'aiff',
        'aif',
    ];

    /**
     * Maximum upload size accepted by validation (2 GiB).
     */
    public const MAX_AUDIO_KILOBYTES = 2 * 1024 * 1024;

    public function authorize(): bool
    {
        return $this->user() !== null;
    }

    /**
     * Normalize a single file upload into an array for batch handling.
     */
    protected function prepareForValidation(): void
    {
        if ($this->hasFile('audio') && $this->file('audio') instanceof UploadedFile) {
            $this->files->set('audio', [$this->file('audio')]);
        }
    }

    /**
     * @return array<string, mixed>
     */
    public function rules(): array
    {
        return [
            'audio' => ['required', 'array', 'min:1', 'max:50'],
            'audio.*' => [
                'required',
                File::types(self::AUDIO_EXTENSIONS)->max('2gb'),
            ],
            'title' => ['nullable', 'string', 'max:255'],
        ];
    }

    /**
     * @return array<string, string>
     */
    public function messages(): array
    {
        return [
            'audio.required' => 'Please choose at least one audio file to upload.',
            'audio.min' => 'Please choose at least one audio file to upload.',
            'audio.max' => 'You can upload at most 50 files at once.',
            'audio.*.required' => 'Please choose an audio file to upload.',
            'audio.*' => 'Unsupported audio type. Use MP3, WAV, OGG, FLAC, M4A, AAC, WebM, WMA, or AIFF.',
            'audio.*.max' => 'Each audio file may not be larger than 2 GB.',
        ];
    }
}