<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class ListRequest extends FormRequest
{
    public function rules(): array
    {
        return [
            'sort_by' => 'sometimes|string',
            'sort_order' => 'sometimes|in:asc,desc',
            'page' => 'sometimes|integer|min:1',
            'per_page' => 'sometimes|integer|min:1|max:100',
        ];
    }

    /**
     * 自定义错误消息
     * @return string[]
     */
    public function messages(): array
    {
        return [
            'search.max' => '搜索关键字不能超过 100 个',
//            'filters.status.in' => '状态必须是「0：启用」或「1：禁用」',
//            'sort_by.in' => '排序字段只能是 id、create_time 或 update_time',
            'sort_order.in' => '排序方向必须是（asc：升序、desc：降序）',
            'page.min' => '当前页最小数字为 1',
            'per_page.min' => '每页数量最小数字为 1',
        ];
    }

    public function getSearch(): string
    {
        return $this->input('search') ?? '';
    }

    public function getFilters(): array
    {
        return $this->input('filters', []);
    }

    public function getSort(): array
    {
        return [
            'sort_by' => $this->input('sort_by', 'id'),
            'sort_order' => $this->input('sort_order', 'desc'),
        ];
    }

    public function getPerPage(): int
    {
        return $this->input('per_page', 20);
    }
}