<?php

namespace App\Http\Requests;

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

class UpdatePumpRequest extends FormRequest
{
    public function authorize(): bool
    {
        return true;
    }

    protected function prepareForValidation(): void
    {
        $this->merge([
            'length'   => $this->dec($this->length),
            'diameter' => $this->dec($this->diameter),
            'weight'   => $this->dec($this->weight),
            'h'        => collect($this->h ?? [])->map(fn ($v) => $this->dec($v))->all(),
            'eta'      => collect($this->eta ?? [])->map(fn ($v) => $this->dec($v))->all(),
        ]);
    }

    public function rules(): array
    {
        return [
            'name'            => ['required', 'string', 'max:128', Rule::unique('seg_pumps', 'PUP_NAME')->ignore($this->route('pump'))],
            'manufacturer_id' => ['required', 'integer', 'exists:seg_manufacturers,MCF_ID'],
            'length'          => ['nullable', 'numeric'],
            'diameter'        => ['nullable', 'numeric'],
            'weight'          => ['nullable', 'numeric'],
            'h'               => ['nullable', 'array'],
            'h.*'             => ['nullable', 'numeric'],
            'eta'             => ['nullable', 'array'],
            'eta.*'           => ['nullable', 'numeric'],
        ];
    }

    private function dec(mixed $v): ?string
    {
        return $v === null || $v === '' ? null : str_replace(',', '.', (string) $v);
    }
}