sfp_api_laravel_ginastica_cerebro/app/Http/Requests/ClassPackageUnitVariationRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;

class ClassPackageUnitVariationRequest extends FormRequest
{
    public function rules(): array
    {
        $required = $this->isMethod('POST') ? 'required' : 'sometimes';

        return [
            // uma proposta de cada tipo por pacote da unidade

            'type' => [
                $required,
                'string',
                'in:pavao,irrecusavel',
                Rule::unique('class_package_unit_variations')
                    ->where('class_package_unit_id', $this->route('package'))
                    ->ignore($this->route('id')),
            ],

            'register_value'            => "$required|numeric|min:0",
            'register_installments_min' => "$required|integer|min:1|max:60",
            'register_installments_max' => "$required|integer|min:1|max:60|gte:register_installments_min",
            'package_value'             => "$required|numeric|min:0",
            'package_installments_min'  => "$required|integer|min:1|max:60",
            'package_installments_max'  => "$required|integer|min:1|max:60|gte:package_installments_min",
            'discount_value'            => 'sometimes|nullable|numeric|min:0',
            'material_installments_min' => "$required|integer|min:1|max:60",
            'material_installments_max' => "$required|integer|min:1|max:60|gte:material_installments_min",

            // sem materials na criacao a proposta herda os materiais do pacote
            // o material_value e sempre a soma da lista, nunca vem na request

            'materials'              => 'sometimes|nullable|array',
            'materials.*.product_id' => 'required_with:materials|integer|exists:products,id',
            'materials.*.quantity'   => 'required_with:materials|integer|min:1',
            'materials.*.price'      => 'required_with:materials|numeric|min:0',
        ];
    }
}