<?php
namespace App\Http\Validator;
use Illuminate\Support\Facades\Validator;
class BaseValidator extends Validator
{
    // 当前模型所有验证规则
    public static $rules = [];

    // 当前模型所有错误提示信息
    public static $msgs = [];

    // 当前模型所有验证字段
    public static $fields = [];

    // 当前模型所有验证场景
    public static $scenes = [];

    public function __construct($rules=[], $msgs=[], $fields=[], $scens=[])
    {
        self::$rules = $rules;
        self::$msgs = $msgs;
        self::$fields = $fields;
        self::$scenes = $scens;
    }

    /**
     * 验证表单或请求参数
     * @param $request 请求数据
     * @param string $scene 场景，为空则全部验证
     * @return int|mixed
     */
    public function checkParams($request, $scene=''){
        // 存在验证场景
        if($scene){
            $sceneFields = isset(self::$scenes[$scene])? self::$scenes[$scene] : [];
            if(empty($sceneFields)){
                return 1008;
            }

            foreach (self::$rules as $key => $rule){
                if(!in_array($key, $sceneFields)){
                    unset(self::$rules[$key]);
                    unset(self::$fields[$key]);
                }
            }
        }

        // 验证数据
        $validator = Validator::make($request, self::$rules, self::$msgs, self::$fields);
        if ($validator->fails()) {
            return getValidatorError($validator);
        }

        return $request;
    }
}