<?php

namespace app\common\controller;

use app\common\library\Auth;
use app\utils\RedisUtil;
use think\Config;
use think\exception\HttpResponseException;
use think\exception\ValidateException;
use think\Hook;
use think\Lang;
use think\Loader;
use think\Request;
use think\Response;
use think\Route;
use think\Validate;
use Redis;
/**
 * API控制器基类
 */
class Api
{

    /**
     * @var Request Request 实例
     */
    protected $request;

    /**
     * @var bool 验证失败是否抛出异常
     */
    protected $failException = false;

    /**
     * @var bool 是否批量验证
     */
    protected $batchValidate = false;

    /**
     * @var array 前置操作方法列表
     */
    protected $beforeActionList = [];

    /**
     * 无需登录的方法,同时也就不需要鉴权了
     * @var array
     */
    protected $noNeedLogin = [];

    /**
     * 无需鉴权的方法,但需要登录
     * @var array
     */
    protected $noNeedRight = [];

    /**
     * 权限Auth
     * @var Auth
     */
    protected $auth = null;

    /**
     * 默认响应输出类型,支持json/xml
     * @var string
     */
    protected $responseType = 'json';

    public $page = 1;
    public $listrow = 10;
    /**
     * 构造方法
     * @access public
     * @param Request $request Request 对象
     */
    public function __construct(Request $request = null)
    {
        $this->request = is_null($request) ? Request::instance() : $request;
        $this->page = input('page',1);
        $this->listrow= input('listrow',10);
        // 控制器初始化
        $this->_initialize();
        //日志
        $this->request_log();
        //用户活跃
        $this->user_active();

        // 前置操作方法
        if ($this->beforeActionList) {
            foreach ($this->beforeActionList as $method => $options) {
                is_numeric($method) ?
                    $this->beforeAction($options) :
                    $this->beforeAction($method, $options);
            }
        }
    }

    /**
     * 初始化操作
     * @access protected
     */
    protected function _initialize()
    {
        //跨域请求检测
        check_cors_request();

        // 检测IP是否允许
        check_ip_allowed();

        //移除HTML标签
        $this->request->filter('trim,strip_tags,htmlspecialchars');

        $this->auth = Auth::instance();

        $modulename = $this->request->module();
        $controllername = Loader::parseName($this->request->controller());
        $actionname = strtolower($this->request->action());

        // token
        $token = $this->request->server('HTTP_TOKEN', $this->request->request('token', \think\Cookie::get('token')));

        $path = str_replace('.', '/', $controllername) . '/' . $actionname;
        // 设置当前请求的URI
        $this->auth->setRequestUri($path);
        // 检测是否需要验证登录
        if (!$this->auth->match($this->noNeedLogin)) {
            //初始化
            $this->auth->init($token);
            //检测是否登录
            if (!$this->auth->isLogin()) {
                $this->error(__('Please login first'), null, 401);
            }
            // 判断是否需要验证权限
            if (!$this->auth->match($this->noNeedRight)) {
                // 判断控制器和方法判断是否有对应权限
                if (!$this->auth->check($path)) {
                    $this->error(__('You have no permission'), null, 403);
                }
            }
        } else {
            // 如果有传递token才验证是否登录状态
            if ($token) {
                $this->auth->init($token);
            }
        }

        $upload = \app\common\model\Config::upload();

        // 上传信息配置后
        Hook::listen("upload_config_init", $upload);

        Config::set('upload', array_merge(Config::get('upload'), $upload));

        // 加载当前控制器语言包
        $this->loadlang($controllername);
    }

    /**
     * 加载语言文件
     * @param string $name
     */
    protected function loadlang($name)
    {
        $name = Loader::parseName($name);
        Lang::load(APP_PATH . $this->request->module() . '/lang/' . $this->request->langset() . '/' . str_replace('.', '/', $name) . '.php');
    }

    /**
     * 操作成功返回的数据
     * @param string $msg    提示信息
     * @param mixed  $data   要返回的数据
     * @param int    $code   错误码，默认为1
     * @param string $type   输出类型
     * @param array  $header 发送的 Header 信息
     */
    protected function success($msg = '', $data = null, $code = 1, $type = null, array $header = [])
    {
        if(empty($msg)){
            $msg = '操作成功';
        }
        $this->result($msg, $data, $code, $type, $header);
    }
    //find查询出来的结果如果为空数组，强制转换object
    protected function success_find($msg = '', $data = null, $code = 1, $type = null, array $header = [])
    {
        if(empty($msg)){
            $msg = '操作成功';
        }
        if(is_null($data) || $data === []){
            $data = (object)[];
        }
        $this->result($msg, $data, $code, $type, $header);
    }

    /**
     * 操作失败返回的数据
     * @param string $msg    提示信息
     * @param mixed  $data   要返回的数据
     * @param int    $code   错误码，默认为0
     * @param string $type   输出类型
     * @param array  $header 发送的 Header 信息
     */
    protected function error($msg = '', $data = null, $code = 0, $type = null, array $header = [])
    {
        if(empty($msg)){
            $msg = __('Invalid parameters');
        }
        $this->result($msg, $data, $code, $type, $header);
    }

    /**
     * 返回封装后的 API 数据到客户端
     * @access protected
     * @param mixed  $msg    提示信息
     * @param mixed  $data   要返回的数据
     * @param int    $code   错误码，默认为0
     * @param string $type   输出类型，支持json/xml/jsonp
     * @param array  $header 发送的 Header 信息
     * @return void
     * @throws HttpResponseException
     */
    protected function result($msg, $data = null, $code = 0, $type = null, array $header = [])
    {
        $result = [
            'code' => $code,
            'msg'  => $msg,
            'time' => Request::instance()->server('REQUEST_TIME'),
            'data' => $data,
        ];

        //日志
        $this->request_log_update($result);

        // 如果未设置类型则自动判断
        $type = $type ? $type : ($this->request->param(config('var_jsonp_handler')) ? 'jsonp' : $this->responseType);

        if (isset($header['statuscode'])) {
            $code = $header['statuscode'];
            unset($header['statuscode']);
        } else {
            //未设置状态码,根据code值判断
            $code = $code >= 1000 || $code < 200 ? 200 : $code;
        }
        $response = Response::create($result, $type, $code)->header($header);
        throw new HttpResponseException($response);
    }

    /**
     * 前置操作
     * @access protected
     * @param string $method  前置操作方法名
     * @param array  $options 调用参数 ['only'=>[...]] 或者 ['except'=>[...]]
     * @return void
     */
    protected function beforeAction($method, $options = [])
    {
        if (isset($options['only'])) {
            if (is_string($options['only'])) {
                $options['only'] = explode(',', $options['only']);
            }

            if (!in_array($this->request->action(), $options['only'])) {
                return;
            }
        } elseif (isset($options['except'])) {
            if (is_string($options['except'])) {
                $options['except'] = explode(',', $options['except']);
            }

            if (in_array($this->request->action(), $options['except'])) {
                return;
            }
        }

        call_user_func([$this, $method]);
    }

    /**
     * 设置验证失败后是否抛出异常
     * @access protected
     * @param bool $fail 是否抛出异常
     * @return $this
     */
    protected function validateFailException($fail = true)
    {
        $this->failException = $fail;

        return $this;
    }

    /**
     * 验证数据
     * @access protected
     * @param array        $data     数据
     * @param string|array $validate 验证器名或者验证规则数组
     * @param array        $message  提示信息
     * @param bool         $batch    是否批量验证
     * @param mixed        $callback 回调方法（闭包）
     * @return array|string|true
     * @throws ValidateException
     */
    protected function validate($data, $validate, $message = [], $batch = false, $callback = null)
    {
        if (is_array($validate)) {
            $v = Loader::validate();
            $v->rule($validate);
        } else {
            // 支持场景
            if (strpos($validate, '.')) {
                list($validate, $scene) = explode('.', $validate);
            }

            $v = Loader::validate($validate);

            !empty($scene) && $v->scene($scene);
        }

        // 批量验证
        if ($batch || $this->batchValidate) {
            $v->batch(true);
        }
        // 设置错误信息
        if (is_array($message)) {
            $v->message($message);
        }
        // 使用回调验证
        if ($callback && is_callable($callback)) {
            call_user_func_array($callback, [$v, &$data]);
        }

        if (!$v->check($data)) {
            if ($this->failException) {
                throw new ValidateException($v->getError());
            }

            return $v->getError();
        }

        return true;
    }

    /**
     * 刷新Token
     */
    protected function token()
    {
        $token = $this->request->param('__token__');

        //验证Token
        if (!Validate::make()->check(['__token__' => $token], ['__token__' => 'require|token'])) {
            $this->error(__('Token verification error'), ['__token__' => $this->request->token()]);
        }

        //刷新Token
        $this->request->token();
    }

    /*
     * api 请求日志
     * */
    protected function request_log(){

        //api_request_log
        $modulename     = $this->request->module();
        $controllername = $this->request->controller();
        $actionname     = $this->request->action();

        $data = [
            'uid'   => $this->auth->id,
            'api'   => $modulename.'/'.$controllername.'/'.$actionname,
            'params' => json_encode(input()),
            'addtime'  => time(),
            'adddatetime'  => date('Y-m-d H:i:s'),
            'ip'   => request()->ip(),
        ];
        $request_id = db('api_request_log')->insertGetId($data);
        defined('API_REQUEST_ID') or define('API_REQUEST_ID', $request_id);

    }

    //更新用户活跃
    protected function user_active(){
        if($this->auth->isLogin()){
            db('user_active')->where('user_id',$this->auth->id)->update(['requesttime'=>time()]);

            if($this->auth->is_active == 0){
                $update['is_active'] = 1;
                $update['cityname'] = $this->ip_to_address()['cityname'];

                db('user')->where('id',$this->auth->id)->update($update);

                $this->auth->setuser('cityname',$update['cityname']);
                $this->auth->setuser('is_active',1);
            }
        }
    }

    //ip获取地址
    protected  function ip_to_address(){

        $data = [
            'provincename' => '',
            'cityname' => '',
        ];

        try{
            $ip = request()->ip();
            //$ip = '182.37.138.94';

            // http协议：http://api.ip138.com/ip/
            // https协议：https://api.ip138.com/ip/

            $url = 'http://api.ip138.com/ip/?ip='.$ip.'&datatype=jsonp&token=19fc471ea42124e6d1f7e4e473ef2647'; //15811816496   huang19871217
            $result = json_decode(curl_get($url),true);
            //dump($result);exit;

            if(is_array($result) && !empty($result)){
                if(isset($result['ret']) && $result['ret'] == 'ok'){
                    if(isset($result['data']) && is_array($result['data']) && !empty($result['data'])){

                        if(isset($result['data'][1]) && !empty($result['data'][1])){
                            $data['provincename'] = $result['data'][1];
                        }
                        if(isset($result['data'][2]) && !empty($result['data'][2])){
                            $data['cityname'] = $result['data'][2];
                        }

                    }
                }
            }
            //dump($data);
            return $data;
        }catch (Exception $e) {
            return $data;
        }

        return $data;
    }

    protected function request_log_update($log_result){

        if(defined('API_REQUEST_ID')) { //记录app正常返回结果
            if(strlen(json_encode($log_result['data'])) > 10000) {
                $log_result['data'] = '数据太多，不记录';
            }
            db('api_request_log')->where('id',API_REQUEST_ID)->update(['result'=>json_encode($log_result)]);
        }
    }

    /**
     * 接口请求限制
     * @param int $apiLimit
     * @param int $apiLimitTime 单位:秒（s）
     * @param string $key
     * @return bool | true:通过 false:拒绝
     */
    public function apiLimit($apiLimit = 1, $apiLimitTime = 1, $key = '')
    {
        $userId = $this->auth->id;
        $controller = request()->controller();
        $action = request()->action();

        if (!$key) {
            $key = strtolower($controller) . '_' . strtolower($action) . '_' . $userId;
        }

        if (!RedisUtil::getInstance($key)->tryTimes($apiLimit,intval($apiLimitTime))){
            return false;
        }
        return true;
    }
}