<?php
namespace Cas\Module;
use KIF\Verify;
use KIF\Data\ResultWrapper;
use KIF\Curl;
use KIF\String\String;
use Cas\Dao\WeixinApi as DWeixinApi;
/**
 * 
 * 微信公众平台接口
 * @author lishumingoo@gmail.com
 */
class WeixinApi {
	private $access_token;
	
	public function __construct() {
		$this->access_token = WeixinBackAccount::getAccessToken();
	}
	
	/**
	 * 
	 * 创建临时二维码
	 * @param int $scene_id
	 * @return ResultWrapper
	 */
	public function createTempQrcode($scene_id) {
		$ticketResult = $this->createTicket('QR_SCENE', $scene_id);
		if (!$ticketResult->isSuccess()) {
			return ResultWrapper::fail($ticketResult->getData());
		}
		
		$result = $ticketResult->getData();
		$qrcode = $this->exchangeQrcode($result['ticket']);
		return ResultWrapper::success($qrcode);
	}
	
	/**
	 * 
	 * 创建永久二维码
	 * @param int $scene_id
	 * @return ResultWrapper
	 */
	public function createSteadyQrcode($scene_id) {
		$ticketResult = $this->createTicket('QR_LIMIT_SCENE', $scene_id);
		if (!$ticketResult->isSuccess()) {
			return ResultWrapper::fail($ticketResult->getData());
		}
		
		$result = $ticketResult->getData();
		$qrcode = $this->exchangeQrcode($result['ticket']);
		return ResultWrapper::success($qrcode);
	}
	
	/**
	 * 
	 * 创建二维码ticket
	 * @param string $action_name
	 * @param int $scene_id
	 * @return ResultWrapper
	 */
	public function createTicket($action_name, $scene_id) {
		if (!$action_name) {
			return ResultWrapper::fail('无效 action_name 参数');
		}
		
		if (!Verify::unsignedInt($scene_id)) {
			return ResultWrapper::fail('无效 scene_id 参数');
		}
		
		$params = array(
			'action_name'	=> $action_name,
			'action_info'	=> array(
				'scene'	=> array(
						'scene_id'	=> $scene_id,
				),
			),
		);
		
		if ($action_name == 'QR_SCENE') {
			$params['expire_seconds'] = DWeixinApi::$expire_seconds;
		}
		
		$result = $this->postCurl(DWeixinApi::$create_ticket_api, $params);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 
	 * 通过ticket换取二维码地址
	 * @param string $ticket
	 * @return boolean|string
	 */
	public function exchangeQrcode($ticket) {	
		if (!$ticket) {
			return false;
		}
		
		$args = array(
			'ticket'	=> urlencode($ticket),
		);
		
		return DWeixinApi::$exchange_qrcode_api . '?ticket=' . urlencode($ticket);
	}
	
	/**
	 * 
	 * 查询所有分组
	 * @return ResultWrapper
	 */
	public function searchAllGroups() {
		$result = $this->getCurl(DWeixinApi::$search_all_groups);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return  ResultWrapper::success($result->getData());
	}
	
	/**
	 *
	 * 创建分组
	 * @param string $groupName
	 * @return ResultWrapper
	 */
	public function createGroup($groupName) {
		if (!$groupName) {
			return ResultWrapper::fail('无效组名');
		}
	
		$params = array(
			'group'	=> array('name'	=> $groupName),
		);
	
		$result = $this->postCurl(DWeixinApi::$create_group, $params);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
	
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 
	 * 查询用户所在分组
	 * @param string $openid
	 * @return ResultWrapper
	 */
	public function searchMemberGroupid($openid) {
		if (!$openid) {
			return ResultWrapper::fail('无效openid');
		}
		
		$params = array(
			'openid'	=> $openid,
		);
		
		$result = $this->postCurl(DWeixinApi::$search_member_groupid, $params);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 
	 * 修改分组名
	 * @param int $groupid
	 * @param string $groupName
	 * @return ResultWrapper
	 */
	public function updateGroupName($groupid, $groupName) {
		if (!Verify::unsignedInt($groupid)) {
			return ResultWrapper::fail('无效分组id');
		}
		
		if (!$groupName) {
			return ResultWrapper::fail('无效组名');
		}
		
		$params = array(
			'group'	=> array(
				'id'	=> $groupid,
				'name'	=> $groupName,
			),
		);
		
		$result = $this->postCurl(DWeixinApi::$update_group_name, $params);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 
	 * 更新用户分组
	 * @param string $openid
	 * @param int $to_groupid
	 * @return ResultWrapper
	 */
	public function updateMemberGroup($openid, $to_groupid) {
		if (!$openid) {
			return ResultWrapper::fail('无效openid');
		}
		
		if (!Verify::unsignedInt($to_groupid)) {
			return ResultWrapper::fail('无效分组id');
		}
		
		$params = array(
			'openid'	=> $openid,
			'to_groupid'	=> $to_groupid,
		);
		
		$result = $this->postCurl(DWeixinApi::$update_member_group, $params);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 
	 * 创建菜单
	 * @param array $params
	 * @return ResultWrapper
	 */
	public function createMenu($params) {
		$result = $this->postCurl(DWeixinApi::$create_menu, $params);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 
	 * 删除菜单
	 */
	public function deleteMenu() {
		$result = $this->getCurl(DWeixinApi::$delete_menu);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return  ResultWrapper::success($result->getData());
	}
	
	/**
	 * 获取用户基本信息
	 * @param string $openid
	 * @return ResultWrapper
	 */
	public function getUserInfo($openid) {
		if (!$openid) {
			return ResultWrapper::fail('无效openid');
		}
		
		$params = array(
			'openid'	=> $openid,
			'lang'		=> 'zh_CN',
		);
		$url = String::jointUrl(DWeixinApi::$get_user_info, $params);
		$result = $this->getCurl($url);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 获取关注者列表
	 * @param string $next_openid
	 * @return ResultWrapper
	 */
	public function getsOpenids($next_openid = null) {
		$params = array();
		if (!is_null($next_openid) && $next_openid) {
			$params['next_openid'] = $next_openid;
		}
		$url = String::jointUrl(DWeixinApi::$gets_openids_list, $params);
		$result = $this->getCurl($url);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 上传多媒体文件
	 * @param string $filePath
	 * @param string $fileType
	 * @return ResultWrapper
	 */
	public function mediaUpload($filePath, $fileType) {
		if (!$filePath) {
			return ResultWrapper::fail('无效文件路径');
		}
		
		if (!in_array($fileType, array('image', 'voice', 'video', 'thumb'))) {
			return ResultWrapper::fail("无效文件类型：{$fileType}");
		}
		
		$params = array(
			'media'	=> "@{$filePath}",
		);
		$url = String::jointUrl(DWeixinApi::$mediaUpload, array('access_token' => $this->access_token, 'type' => $fileType));
		
		$ch = curl_init($url);
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		$jsonResult = curl_exec($ch);
		curl_close($ch);
		
		if (!$jsonResult) {
			return ResultWrapper::fail('接口未返回数据');
		}
		
		$result = json_decode($jsonResult, true);
		if ($result['errcode'] != 0) {
			return ResultWrapper::fail($jsonResult);
		}
		
		return ResultWrapper::success($result);
	}
	
	/**
	 * 发送客服消息之：文本消息
	 * @param string @openid
	 * @param string $content
	 */
	public function sendTextMessage($openid, $content) {
		if (!$openid) {
			return ResultWrapper::fail('无效openid');
		}
		
		if (!$content) {
			return ResultWrapper::fail('消息内容不能为空');
		}
		
		$params = array(
			'touser'	=> $openid,
			'msgtype'	=> 'text',
			'text'	=> array(
				'content'	=> $content,
			),
		);
		
		$result = $this->postCurl(DWeixinApi::$sendMessage, $params);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 发送模板消息
	 * @param unknown $openid
	 */
	public function sendTemplateMessage($openid) {
		if (!$openid) {
			return ResultWrapper::fail('无效openid');
		}
		
		$params = array(
			'touser'	=> $openid,
			'template_id'	=> 'DhQvR71fIoV91k0XdboZlT2lbue8GpNKUaz8xT8A1Jk',
			'url'	=> 'http://www.baidu.com',
			'data'	=> array(
				'first'	=> array(
					'value'	=> '你好，你已报名成功',
					'color'	=> '#173177',
				),
				'keynote1'	=> array(
					'value'	=> '活动主题xx',
				),
				'keynote2'	=> array(
					'value'	=> '活动时间xx',
				),
				'keynote3'	=> array(
					'value'	=> '活动地点xx',
				),
				'remark'	=> array(
					'value'	=> '其他信息xx',
				),
			),
		);
		
		$result = $this->postCurl(DWeixinApi::$templateSend, $params);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 上传图文消息素材
	 * @param array $articles
	 * @return ResultWrapper
	 */
	public function uploadNews(array $articles) {
		$params = array(
			'articles'	=> $articles,
		);
		$result = $this->postCurl(DWeixinApi::$uploadNews, $params);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
	
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 群发消息
	 * @param array $messageParams
	 * @return ResultWrapper
	 */
	public function messageSendAll($messageParams, $sendObjectType) {
		$apiUrl = '';
		if ($sendObjectType == 'group') {
			$apiUrl = DWeixinApi::$sendMsgByGroup;
		} else if ($sendObjectType == 'openid') {
			$apiUrl = DWeixinApi::$sendMsgByOpenids;
		} else {
			return ResultWrapper::fail("无效\$sendObjectType参数");
		}
		$result = $this->postCurl($apiUrl, $messageParams);
		if (!$result->isSuccess()) {
			return ResultWrapper::fail($result->getData());
		}
		
		return ResultWrapper::success($result->getData());
	}
	
	/**
	 * 发送post请求
	 * @param string $url 接口地址
	 * @param array $params 接口参数
	 * @param boolean $isJson 是否post json数据
	 * @return ResultWrapper
	 */
	private function postCurl($url, $params, $isJson = true) {
		$url = String::jointUrl($url, array('access_token' => $this->access_token));
		$objCurl = new Curl($url);
		if ($isJson) {
			$params = self::json_encode($params);
		}
		$jsonResult = $objCurl->post($params);
		if (!$jsonResult) {
			return ResultWrapper::fail('接口未返回数据');
		}
		
		$result = json_decode($jsonResult, true);
		if ($result['errcode'] != 0) {
			return ResultWrapper::fail($jsonResult);
		}
		
		return ResultWrapper::success($result);
	}
	
	/**
	 * 发送get请求
	 * @param string $url 接口地址
	 * @return ResultWrapper
	 */
	private function getCurl($url) {
		$url = String::jointUrl($url, array('access_token' => $this->access_token));
		$objCurl = new Curl($url);
		$jsonResult = $objCurl->get();
		if (!$jsonResult) {
			return ResultWrapper::fail('接口未返回数据');
		}
	
		$result = json_decode($jsonResult, true);
		if ($result['errcode'] != 0) {
			return ResultWrapper::fail($jsonResult);
		}
	
		return ResultWrapper::success($result);
	}
	
	/**
	 * 
	 * 微信json数据不能包含\uxxxx格式的字符，这里重写封装下
	 * @param array $params
	 * @return array
	 */
	public function json_encode(array $params) {
		return urldecode(json_encode(self::urlencode($params)));
	}
	
	private function urlencode(array $params) {
		if (!is_array($params)) {
			return $params;
		}
		
		$result = array();
		foreach ($params as $key => $value) {
			if (is_scalar($value)) {
				if (empty($value)) {
					continue;
				}
				$result[$key] = urlencode($value);
			} else if(is_array($value)){
				if (empty($value)) {
					continue;
				}
		
				$tmp_arr = self::urlencode($value);
				if (empty($tmp_arr)) {
					continue;
				}
		
				$result[$key] = $tmp_arr;
			} else {
				$result[$key] = urlencode($value);
			}
		
		}
		
		return $result;
	}
}