<?php

namespace App\Module\AppGame\Validations;

use App\Module\Pet\Enums\PetStatus;
use App\Module\Pet\Validators\PetExistsValidator;
use App\Module\Pet\Validators\PetFoodValidator;
use App\Module\Pet\Validators\PetStatusValidator;
use App\Module\GameItems\Validators\ItemQuantityValidator;

/**
 * 宠物喂食验证类
 *
 * 用于验证宠物喂食请求的参数
 */
class PetEatValidation extends ValidationBase
{


    /**
     * 验证规则
     *
     * @param array $rules 自定义规则
     * @return array
     */
    public function rules($rules = []): array
    {
        return [
            [
                'petId,itemId,num,user_id', 'required'
            ],
            [
                'petId,itemId,num', 'integer', 'min' => 1,
                'msg'                                  => '{attr}必须是大于0的整数'
            ],
            // 验证宠物是否存在
            [
                'petId', new PetExistsValidator($this),
                'msg' => '宠物不存在或不属于当前用户'
            ],
            // 验证宠物状态是否正常
            [
                'petId', new PetStatusValidator($this, [ PetStatus::NORMAL ]),
                'msg' => '宠物状态不允许喂食'
            ],
            // 验证物品是否为宠物口粮
            [
                'itemId', new PetFoodValidator($this),
                'msg' => '该物品不是宠物口粮'
            ],
            // 验证物品数量是否足够
            [
                'itemId', new ItemQuantityValidator($this, ['user_id', 'num']),
                'msg' => '物品数量不足'
            ]
        ];
    }

    /**
     * 设置默认值
     *
     * @return array
     */
    public function default(): array
    {
        return [
            'num' => 1
        ];
    }

}