<?php
/**
 * 返回短信接口
 */
namespace api\modules\v1\controllers;
use api\models\Common;
use common\library\Sms;
use yii\rest\ActiveController;
use common\library\Apireturn;
use yii;
class TelCodeController extends ActiveController
{
    public $modelClass = 'common\models';
    const TYPE_REGISTER =1;//注册
    const TYPE_BIND = 3 ;//用户绑定手机号
    const TYPE_FIND=2;//忘记密码
    const TYPE_LOGIN = 4; //登录
    const TIME_LIMIT = 60;//限制X秒发送一条
    const TIME_VALID = 300;//有效时间


    /**
     * @return array
     */
    public function actionGet()
    {
        $post = Yii::$app->request->post();
        if(empty($post['sign'])||strtolower($post['sign'])!=md5('building'.$post['tel']))
        {
            return Apireturn::sent(0,'验证未通过',200);
        }
        if(empty($post['tel'])||empty($post['type']))
        {
            return Apireturn::sent(0,'参数错误',200);
        }

        if(!Common::is_tel($post['tel']))
        {
            return Apireturn::sent(0,'请输入正确的手机号',200);
        }
        $username = $post['tel'];
        $type = $post['type'];
        switch ($type)
        {
            case self::TYPE_REGISTER://注册
                $count = \common\models\User::find()->where(array('username'=>$username))->count();
                if($count>0)
                {
                    return Apireturn::sent(0,'手机号已注册',200);
                }
                $result =  $this->isSent($username,$type);//判断能否发送
                if($result['code']==1){
                    $result = $this->sent($username,$type);
                }
                break;
            case self::TYPE_BIND ://绑定手机号
                $count = \common\models\User::find()->where(array('tel'=>$username))->count();
                if($count>0)
                {
                    return Apireturn::sent(0,'手机号已绑定',200);
                }
                $result =  $this->isSent($username,$type);//判断能否发送
                if($result['code']==1){
                    $result = $this->sent($username,$type);
                }
                break;
            default :
                break;
        }
        return $result;
    }

    //判断是否能发送
    public function isSent($username,$type)
    {
        $key = $username."_".$type;
        $cache = Yii::$app->cache->get($key);
        if(empty($cache))
        {
            return Apireturn::sent(1);
        }

        if(($cache['c_time']+self::TIME_LIMIT)>time())
        {
            return Apireturn::sent(0,'发送短信太频繁',200);
        }
        return Apireturn::sent(1);
    }

    //发送短信
    public function sent($username,$type)
    {
        $code = rand(1000,9999);
        $message = "【".Yii::$app->params['sitetitle']."】";
        switch ($type)
        {
            case self::TYPE_REGISTER://注册
                $message.="您的注册验证码为:".$code;
                break;
            case self::TYPE_FIND ://找回密码
                $message.="您的验证码为:".$code;
                break;
            case self::TYPE_BIND://绑定手机号
                $message.="您的验证码为:".$code;
                break;
        }
        $sms = new Sms();
        $result =$sms->SendMessage($username,$message);
        if($result)
        {
            $key = $username."_".$type;
            Yii::$app->cache->set($key,array('username'=>$username,'c_time'=>time(),'code'=>$code,'valid_time'=>time()+self::TIME_VALID),3600);
            return Apireturn::sent(1,'发送短信成功',200);
        }else{
            return Apireturn::sent(0,'发送短信失败',200);
        }
    }


    /**判断验证是否正确
     * @param $username 手机号
     * @param $type 类型
     * @param $code  验证码
     */
    static  public function existCode($username,$type,$code)
    {
        $key = $username."_".$type;
        $cache = Yii::$app->cache->get($key);
        if(empty($cache))
        {
            return false;
        }
        if($cache['code']==$code)
        {
            return true;
        }
        return false;
    }

    static public function clearCode($username,$type)
    {
        $key = $username."_".$type;
        Yii::$app->cache->set($key,null);
    }

}