<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Contracts\Validation\Validator;
use Illuminate\Http\Exceptions\HttpResponseException;

class ApiRequest extends FormRequest
{
    protected $rules=[]; //规则

    protected $scene=[]; //场景

    protected $attribute=[]; //属性说明

    protected $messages=[ //错误信息
        "required"    => ":attribute 不能为空",
        "between"     => ":attribute 长度必须在 :min 和 :max 之间",
        "email"       => ":attribute 格式错误",
        "regex"       => ":attribute 格式错误",
        "mobile"      => ":attribute 格式错误",
        'date_format' => ':attribute 与给定的格式 :format 不符合',
        'unique'      => ':attribute 已存在',
        'max'         => [
            'numeric' => ':attribute 的最大长度为 :max 位',
            'file'    => ':attribute 的最大为 :max',
            'string'  => ':attribute 的最大长度为 :max 字符',
            'array'   => ':attribute 的最大个数为 :max 个.',
        ],
        'in'          => ':attribute 不在操作范围！',
        "numeric"     => ":attribute 不为数字",
        "integer"     => ":attribute 不为整数",
    ];

    /**
     * 自定义错误信息 返回json
     *
     * @param Validator $validator
     */
    public function failedValidation(Validator $validator)
    {
        throw (new HttpResponseException(response()->json([
            'status' => false,
            'code' => '500',
            'message' => $validator->errors()->first(),
            'data' => [],
        ],200)));
    }

    /**
     * 路由别名场景验证 (根据路由别名不同规则验证)
     */
    public function sceneValidator(){
        if(!empty($this->scene)){
            $routeName = $this->route()->getName(); //获取路由别名
            if($routeName && array_key_exists($routeName,$this->scene)){
                $sceneRules = $this->scene[$routeName];
                $rules=[];
                foreach ($sceneRules as $key=>$value){
                    if(is_numeric($key)){
                        $rules[$value] = $this->rules[$value];
                    }else{
                        $rules[$key] = $value;
                    }
                }
                $this->rules = $rules;
            }
        }
    }

    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        $this->sceneValidator();
        return $this->rules;
    }

    /**
     * 自定义属性说明
     * @return array
     */
    public function attributes()
    {
        return $this->attribute;
    }

    /**
     *  自定义错误消息
     * @return array
     */
    public function messages()
    {
        return $this->messages;
    }


}