<?php


namespace App\Http\Controllers\Helpers;


use Illuminate\Http\Response;
use Illuminate\Support\Arr;
use App\ResultStruct\Result;
use Illuminate\Http\JsonResponse;

trait ResponseTrait {

    private $_data = [
        'code' => ERROR_CODE_OK,
        'data' => [],
        'message' => ''
    ];
    protected $_headers = [
        'Access-Control-Allow-Origin' => '*',
        'Access-Control-Allow-Methods' => 'POST,GET,OPTIONS,DELETE,PUT',
        'Access-Control-Allow-Headers' => 'Origin, X-Requested-With, Content-Type, Accept, Authorization',
        'Content-Type' => 'application/json; charset=UTF-8'
    ];
    protected $_errorMessage = [
        ERROR_CODE_INTERNAL_ERROR => 'Unable to request server',
    ];

    public function response($code, $data = [], $message = "") {
        $this->setCode($code)->setData($data)->setMsg($message);
        return new JsonResponse($this->_data, 200, $this->_headers,
            JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
    }

    public function authExpire($msg = "登陆过期") {
        $this->setMsg($msg)->setCode(ERROR_CODE_PERMISSION_NO);
        return new JsonResponse($this->_data, 401, $this->_headers,
            JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
    }

    public function foxResponse(Result $res) {
        return $this->response($res->getCode(), $res->getData(), $res->getMsg());
    }

    public function success($data = [], $msg = 'Ok') {
        return $this->response(ERROR_CODE_OK, $data, $msg);
    }

    public function error($code = ERROR_CODE_PARAM_INVALID, $msg = "", $data = []) {
        if (empty($msg)) {
            $msg = Arr::get($this->_errorMessage, $code, "");
        }
        return $this->response($code, $data, $msg);
    }


    protected function setCode($code) {
        Arr::set($this->_data, 'code', $code);
        return $this;
    }

    protected function setData($data) {
        Arr::set($this->_data, 'data', $data);
        return $this;
    }

    protected function setMsg($msg) {
        Arr::set($this->_data, 'message', $msg);
        return $this;
    }

    protected function appendData($data = []) {
        $this->_data = array_merge($this->_data, (array)$data);
        return $this;
    }

    protected function setNewData($field, $value) {
        Arr::set($this->_data, $field, $value);
        return $this;
    }

    protected function setHeader($name, $value) {
        Arr::set($this->_headers, $name, $value);
        return $this;
    }

    protected function download($file, $target_name) {
        return \response()->download($file, $target_name, ['Access-Control-Allow-Origin' => '*']);
    }
}