<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

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

    /**
     * @return array<string, array<int, mixed>>
     */
    public function rules(): array
    {
        return [
            'name' => ['required', 'string', 'max:255'],
            'inci' => ['nullable', 'string'],
            'effect' => ['nullable', 'string'],
            'pos' => ['nullable', 'integer', 'min:0', 'max:255'],
            'default_factor' => ['nullable', 'numeric', 'min:0'],
            'min_stock_alert' => ['nullable', 'numeric', 'min:0'],
            'material_quality_id' => ['nullable', 'integer', 'exists:material_qualities,id'],
            'tax_rate_id' => ['nullable', 'integer', 'exists:tax_rates,id'],
            'delivery_time' => ['nullable', 'string', 'max:255'],
            'delivery_time_days' => ['nullable', 'integer', 'min:0', 'max:65535'],
            'supplier_ids' => ['nullable', 'array'],
            'supplier_ids.*' => ['integer', 'exists:suppliers,id'],
            'active' => ['sometimes', 'boolean'],
        ];
    }

    protected function prepareForValidation(): void
    {
        $this->merge([
            'active' => $this->boolean('active'),
            'default_factor' => $this->normalizeDecimal($this->input('default_factor')),
            'min_stock_alert' => $this->normalizeDecimal($this->input('min_stock_alert')),
            'material_quality_id' => $this->nullIfEmpty($this->input('material_quality_id')),
            'tax_rate_id' => $this->nullIfEmpty($this->input('tax_rate_id')),
            'delivery_time_days' => $this->nullIfEmpty($this->input('delivery_time_days')),
        ]);
    }

    private function normalizeDecimal(mixed $value): ?string
    {
        if ($value === null || $value === '') {
            return null;
        }

        return (string) reFormatNumber($value);
    }

    private function nullIfEmpty(mixed $value): mixed
    {
        return $value === '' ? null : $value;
    }
}