<?php
namespace app\api\wxapi\request;

use app\api\wxapi\Base;

/* $req = new CodeRequest();
 * $req->setAppId($WxClient->appID);
 * $req->setServerUrl($WxClient->serverUrl);
 * $req->setScope(self::STATE_SNSAPI_BASE);
 * $url=$req->run();
 * return $this->redirect($url);
 *  */
class CodeRequest extends Base
{
	const STATE_SNSAPI_BASE='snsapi_base';					//不弹出授权页面，直接跳转，只能获取用户openid
	const STATE_SNSAPI_USERINFO='snsapi_userinfo';	//弹出授权页面，可通过openid拿到昵称、性别、所在地。并且，即使在未关注的情况下，只要用户授权，也能获取其信息
	private $serverUrl='https://open.weixin.qq.com/';
	private $redirect_uri;
	private $apiParas = array();
	private $appid;
	private $scope;
	private $state;
	
	public function init(){
		$callback=$_SERVER['REQUEST_SCHEME'].'://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
		$this->setAppId('');
		$this->setRredirectUri($callback);
		$this->apiParas['response_type'] = 'code';
		$this->setScope(self::STATE_SNSAPI_BASE);
		$this->apiParas['state'] = time();
		$this->apiParas['#'] = 'wechat_redirect';
	}
	
	public function run()
	{
		//获取业务参数
		$apiParams = $this->getApiParas();
	
		//系统参数放入GET请求串
		$requestUrl = $this->serverUrl .  $this->getApiMethodName() . "?";
		foreach ($apiParams as $key => $value)
		{
			$requestUrl .= "$key=" . $value . "&";
		}
		return trim($requestUrl,"&");
	}
	
	public function getApiMethodName(){
		return "connect/oauth2/authorize";
	}
	
	public function getApiParas(){
		return $this->apiParas;
	}

	public function putOtherTextParam($key, $value){
		$this->apiParas[$key] = $value;
		$this->$key = $value;
	}

	public function setAppId($appid){
		$this->appid = $appid;
		$this->apiParas["appid"] = $appid;
	}
	
	public function getAppId(){
		return $this->appid;
	}
	
	public function setRredirectUri($redirect_uri){
		$redirect_uri = urlencode($redirect_uri);
		$this->redirect_uri = $redirect_uri;
		$this->apiParas["redirect_uri"] = $redirect_uri;
	}
	
	public function getRredirectUri(){
		return $this->redirect_uri;
	}

	public function setScope($scope){
		$this->scope = $scope;
		$this->apiParas["scope"] = $scope;
	}
	
	public function getScope(){
		return $this->scope;
	}

	public function setServerUrl($serverUrl){
		$this->serverUrl = $serverUrl;
	}
	
	public function getServerUrl(){
		return $this->serverUrl;
	}

	public function setState($state){
		$this->state = $state;
		$this->apiParas["state"] = $state;
	}
	
	public function getState(){
		return $this->state;
	}
	
}