<?php

namespace App\Http\Requests;

use App\Enums\ChatSessionStatus;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;

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

    /**
     * @return array<string, mixed>
     */
    public function rules(): array
    {
        return [
            'session_name' => ['sometimes', 'string', 'min:1', 'max:255'],
            'status' => ['sometimes', 'string', Rule::in(ChatSessionStatus::all())],
        ];
    }

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

    public function withValidator($validator)
    {
        $validator->after(function ($v) {
            if (! $this->has('session_name') && ! $this->has('status')) {
                $v->errors()->add('payload', '至少提供一个可更新字段');
            }
        });
    }
}