<?php

class LewaimaiWeixinauth {
	public static function getComponentAccessToken()
	{
		$weixinauthcacheModel = WeixinauthCache::model()->findByPk(1);
	
		$component_access_token = false;
		if ($weixinauthcacheModel->component_access_token)
		{
			$exp_time = strtotime($weixinauthcacheModel->component_access_token_expires_time) - 100;
			$time = time();
			if($exp_time >= $time) {
				$component_access_token = $weixinauthcacheModel->component_access_token;
			}
		}
	
		if (!$component_access_token)
		{
			$component_verify_ticket = $weixinauthcacheModel->component_verify_ticket;
	
			$postArray = array();
			$postArray["component_appid"] = LEWAIMAI_PINGTAI_APPID;
			$postArray["component_appsecret"] = LEWAIMAI_PINGTAI_APPSECRET;
			$postArray["component_verify_ticket"] = $component_verify_ticket;
			$postJson = json_encode($postArray);
	
			$url = "https://api.weixin.qq.com/cgi-bin/component/api_component_token";
			$post_res = LewaimaiHttp::POSTJSON($url, $postJson);
			$postresArray = json_decode($post_res, true);
	
			$component_access_token = $postresArray["component_access_token"];
			$expires_in = time() + $postresArray["expires_in"];
	
			$weixinauthcacheModel->component_access_token = $component_access_token;
			$weixinauthcacheModel->component_access_token_expires_time = date('Y-m-d H:i:s', $expires_in);
			if (!$weixinauthcacheModel->update())
			{
				LewaimaiDebug::LogModelError($weixinauthcacheModel);
				return false;
			}
		}
		
		return $component_access_token;
	}
	
	public static function getPreauthcode()
	{
		$pre_auth_code = false;
		$weixinauthcacheModel = WeixinauthCache::model()->findByPk(1);
		if ($weixinauthcacheModel->pre_auth_code)
		{
			$exp_time = strtotime($weixinauthcacheModel->pre_auth_code_expires_time) - 100;
			$time = time();
			if($exp_time >= $time) {
				$pre_auth_code = $weixinauthcacheModel->pre_auth_code;
			}
		}
		
		$pre_auth_code = false;		 
		if (!$pre_auth_code)
		{
			//如果缓存里面没有pre_auth_code，那么就重新获取
			$component_access_token = false;
			if ($weixinauthcacheModel->component_access_token)
			{
				$exp_time = strtotime($weixinauthcacheModel->component_access_token_expires_time) - 100;
				$time = time();
				if($exp_time >= $time) {
					$component_access_token = $weixinauthcacheModel->component_access_token;
				}
			}
		
			if (!$component_access_token)
			{
				$component_verify_ticket = $weixinauthcacheModel->component_verify_ticket;
		
				$postArray = array();
				$postArray["component_appid"] = LEWAIMAI_PINGTAI_APPID;
				$postArray["component_appsecret"] = LEWAIMAI_PINGTAI_APPSECRET;
				$postArray["component_verify_ticket"] = $component_verify_ticket;
				$postJson = json_encode($postArray);
		
				$url = "https://api.weixin.qq.com/cgi-bin/component/api_component_token";
				$post_res = LewaimaiHttp::POSTJSON($url, $postJson);
				$postresArray = json_decode($post_res, true);
		
				$component_access_token = $postresArray["component_access_token"];
				$expires_in = time() + $postresArray["expires_in"];
		
				$weixinauthcacheModel->component_access_token = $component_access_token;
				$weixinauthcacheModel->component_access_token_expires_time = date('Y-m-d H:i:s', $expires_in);
				if (!$weixinauthcacheModel->update())
				{
					LewaimaiDebug::LogModelError($weixinauthcacheModel);
					return false;
				}
			}
		
			$postArray = array();
			$postArray["component_appid"] = LEWAIMAI_PINGTAI_APPID;
			$postJson = json_encode($postArray);
			 
			$preauthcode_url = "https://api.weixin.qq.com/cgi-bin/component/api_create_preauthcode?component_access_token=" . $component_access_token;
			$post_res = LewaimaiHttp::POSTJSON($preauthcode_url, $postJson);
			$postresArray = json_decode($post_res, true);
			 
			$pre_auth_code = $postresArray["pre_auth_code"];
			$expires_in = time() + $postresArray["expires_in"];
		
			$weixinauthcacheModel->pre_auth_code = $pre_auth_code;
			$weixinauthcacheModel->pre_auth_code_expires_time = date('Y-m-d H:i:s', $expires_in);
			if (!$weixinauthcacheModel->update())
			{
				LewaimaiDebug::LogModelError($weixinauthcacheModel);
				return false;
			}
		}
		
		return $pre_auth_code;
	}
	
	//获取授权令牌
	public static function getAuthorizerAccessToken($adminId)
	{
		$adminweixinauthinfocacheModel = AdminWeixinauthInfoCache::model()->find("admin_id = " . $adminId);
		if (!$adminweixinauthinfocacheModel) 
		{
			Yii::log("no this adminweixinauthinfocache!");
			return false;
		}
		
		$authorizer_access_token = false;
		if ($adminweixinauthinfocacheModel->authorizer_access_token)
		{
			$exp_time = strtotime($adminweixinauthinfocacheModel->authorizer_access_token_expires_time) - 100;
			$time = time();
			if($exp_time >= $time) {
				$authorizer_access_token = $adminweixinauthinfocacheModel->authorizer_access_token;
			}
		}
		
		if (!$authorizer_access_token) 
		{
			//此时通过刷新令牌去刷新
			$component_access_token = LewaimaiWeixinauth::getComponentAccessToken();
			if (!$component_access_token) {
				return false;
			}
			
			$postArray = array();
			$postArray["component_appid"] = LEWAIMAI_PINGTAI_APPID;
			$postArray["authorizer_appid"] = $adminweixinauthinfocacheModel->authorizer_appid;
			$postArray["authorizer_refresh_token"] = $adminweixinauthinfocacheModel->authorizer_refresh_token;
			$postJson = json_encode($postArray);
			
			$url = "https://api.weixin.qq.com/cgi-bin/component/api_authorizer_token?component_access_token=" . $component_access_token;
			$post_res = LewaimaiHttp::POSTJSON($url, $postJson);
			$postresArray = json_decode($post_res, true);
			if (!isset($postresArray["authorizer_access_token"]) || $postresArray["authorizer_access_token"] == "") 
			{
				Yii::log("refresh authorizer_access_token failed! adminId:" . $adminId);
				return false;
			}
			
			$authorizer_access_token = $postresArray["authorizer_access_token"];
			$expires_in = time() + $postresArray["expires_in"];
			$authorizer_refresh_token = $postresArray["authorizer_refresh_token"];
			
			$adminweixinauthinfocacheModel->authorizer_access_token = $authorizer_access_token;
			$adminweixinauthinfocacheModel->authorizer_access_token_expires_time = date('Y-m-d H:i:s', $expires_in);
			$adminweixinauthinfocacheModel->authorizer_refresh_token = $authorizer_refresh_token;
			
			if (!$adminweixinauthinfocacheModel->update()) {
				LewaimaiDebug::LogModelError($adminweixinauthinfocacheModel);
				return false;
			}
		}
		
		return $authorizer_access_token;
	}
	
	//获取用户的信息（这个不用于第一次绑定时候的获取）
	public static function getAuthorizerInfo($adminId){	
		$adminModel = Admin::model()->findByPk($adminId);
		if (!$adminModel)
		{
			Yii::log("adminModel is NULL!");
			return false;
		}
				
		$component_access_token = LewaimaiWeixinauth::getComponentAccessToken();
		if (!$component_access_token) {
			return false;
		}
		
		$postArray = array();
		$postArray["component_appid"] = LEWAIMAI_PINGTAI_APPID;
		$postArray["authorizer_appid"] = $adminModel->appid;
		$postJson = json_encode($postArray);
		
		$url = "https://api.weixin.qq.com/cgi-bin/component/api_get_authorizer_info?component_access_token=" . $component_access_token;
		$post_res = LewaimaiHttp::POSTJSON($url, $postJson);
		$postresArray = json_decode($post_res, true);
		if (isset($postresArray["errcode"]) && $postresArray["errcode"] != 0) 
		{
			//获取信息失败，重新授权
			Yii::log("get authorizer_info failed! errmsg:" . $postresArray["errmsg"]);
			return false;
		}
		
		$adminModel->wx_name = $postresArray["authorizer_info"]["nick_name"];
		if (isset($postresArray["authorizer_info"]["head_img"])) 
		{
			$adminModel->head_img = $postresArray["authorizer_info"]["head_img"];
		}
		$adminModel->wx_tousername = $postresArray["authorizer_info"]["user_name"];
		if (isset($postresArray["authorizer_info"]["alias"])) 
		{
			$adminModel->wx_account = $postresArray["authorizer_info"]["alias"];
		}		
		$adminModel->qrcode_url = $postresArray["authorizer_info"]["qrcode_url"];

		$service_type_info = $postresArray["authorizer_info"]["service_type_info"]["id"];
		$verify_type_info = $postresArray["authorizer_info"]["verify_type_info"]["id"];
		
		if (($service_type_info == 0 || $service_type_info == 1)) 
		{
			if (($verify_type_info == -1 || $verify_type_info == 1 || $verify_type_info == 2)) 
			{
				$adminModel->wx_type = 0;
			}
			else
			{
				$adminModel->wx_type = 1;
			}
		}
		else
		{
			if (($verify_type_info == -1 || $verify_type_info == 1 || $verify_type_info == 2))
			{
				$adminModel->wx_type = 2;
			}
			else
			{
				$adminModel->wx_type = 3;
			}
		}
		
		if (!$adminModel->update()) {
			LewaimaiDebug::LogModelError($adminModel);
			return false;
		}
		
		return true;
	}
}