<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Facades\Auth;
use Illuminate\Validation\Rule;

class UpdateAttributeRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     */
    public function authorize(): bool
    {
        return Auth::check();
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array|string>
     */
    public function rules(): array
    {
        return [
            'slug' => [
                'nullable',
                'string',
                'max:191',
                'regex:/^[a-z0-9]+(?:-[a-z0-9]+)*$/',
                Rule::unique('vehicle_attributes', 'slug')
                    ->ignore($this->route('attribute'))
                    ->where('model', $this->route('model')),
            ],
        ];
    }

    protected function prepareForValidation(): void
    {
        if ($this->has('slug') && $this->input('slug') === '') {
            $this->merge(['slug' => null]);
        }
    }

    public function messages(): array
    {
        return [
            'slug.regex' => 'Slug may only contain lowercase letters, numbers and hyphens.',
            'slug.unique' => 'This slug is already in use for another attribute.',
        ];
    }
}
