ldc-gen-game-web/app/Http/Requests/ExportCodesRequest.php

<?php

namespace App\Http\Requests;

use App\Models\Code;
use Illuminate\Foundation\Http\FormRequest;

class ExportCodesRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return boolean
     */
    public function authorize()
    {
        /** @var \Illuminate\Database\Eloquent\Builder */
        $codesAvailableToExport = Code::whereCodeExported(false);
        $lastExportedId         = Code::whereCodeExported(true)
            ->orderBy('id', 'desc')->first()->id ?? null;
        if ($lastExportedId) {
            $codesAvailableToExport = $codesAvailableToExport
                ->where('id', '>', $lastExportedId);
        }
        $this->merge([
            'available_export' => $codesAvailableToExport->count()
        ]);
        // ? Is auth and super admin, also is json ?
        return auth()->check() and
            auth()->user()->role === 1 and $this->json();
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'nb_code_fic' => 'required|integer|min:1',
            'nb_code_tot' => 'required|integer|min:1',
            'nb_code_ligne' => 'required|integer|min:1',
            'available_export' => 'required|integer|gte:nb_code_tot'
        ];
    }

    /**
     * Get custom attributes for validator errors.
     *
     * @return array
     */
    public function attributes(): array
    {
        return [
            'nb_code_fic' => 'Nombre total de codes à exporter',
            'nb_code_tot' => 'Nombre de codes par fichier',
            'nb_code_ligne' => 'Nombre de codes par ligne',
            'available_export' => 'Nombre de codes restant à exporté(s)'
        ];
    }
}