<?php
namespace Api\Controller;
use Common\Controller\ApiController;
class GroupController extends ApiController {
    public function __construct(){
        parent::__construct();
    }

    //所在群组列表
    public function index(){
        //自己创建的群组
        $res1 = M('Group')->where(array('user_id'=>$this->userId))->order('group_id desc')->select();
        //加入的群组
        $join = 'gu LEFT JOIN t_group g ON gu.group_id=g.group_id';
        $res2 = M('GroupUser')->join($join)->where(array('gu.user_id'=>$this->userId,'g.user_id'=>array('neq',$this->userId)))->order('gu_id desc')->field('g.*')->select();
        if ($res1==NULL && $res2==NULL){
            $res = array();
        }else{
            $res = array_merge($res1,$res2);
        }
        
        $data = array('code'=>0,'msg'=>'','data'=>$res);
        $this->returnData($data);exit;
    }
    
    //编辑群组
    public function edit() {
        $userIds = I('uid');
        $groupId = I('group_id');
        $groupName = I('group_name');
        if(empty($userIds)){
            $data = array('code'=>1,'msg'=>'成员不能为空');
            $this->returnData($data);exit;
        }
        $userInfo = M('User')->where(array('user_id'=>$this->userId))->field('user_id,user_name')->find();
        if (empty($groupId)){
            //新增
            if (mb_strlen($groupName,'UTF8')<2 || mb_strlen($groupName,'UTF8')>12){
                $data = array('code'=>1,'msg'=>'群组名称2到12个汉字');
                $this->returnData($data);exit;
            }
            $groupId = M('Group')->add(array('group_name'=>$groupName,'user_id'=>$this->userId,'operate_dt'=>time(),));
            $userIdArr = explode(',', trim($userIds,','));
            foreach ($userIdArr as $uid){
                $dataList[] = array('user_id'=>$uid, 'group_id'=>$groupId, 'operate_dt'=>time(),);
                $noticeContent = $userInfo['user_name'].'已成功邀您加入“'.$groupName.'”群组，详情可进入到我的好友-群组中查看';
                $noticeList[] = array('user_id'=>$this->userId,'ref_user_id'=>$uid,'notice_content'=>$noticeContent,'operate_dt'=>time(),'notice_type'=>1,'notice_title'=>'群消息',);
                M('User')->where(array('user_id'=>$uid))->setInc('friend_notice');
            }
            $dataList[] = array('user_id'=>$this->userId, 'group_id'=>$groupId, 'operate_dt'=>time(),);
            M('Notice')->addAll($noticeList);
            M('GroupUser')->addAll($dataList);
            M('Group')->where(array('group_id'=>$groupId))->setInc('group_num',count($dataList));
        }else{
            //修改
            if (!empty($groupName)){
                if (mb_strlen($groupName,'UTF8')<2 || mb_strlen($groupName,'UTF8')>12){
                    $data = array('code'=>1,'msg'=>'群组名称2到12个汉字');
                    $this->returnData($data);exit;
                }
            }
            $info = M('Group')->where(array('group_id'=>$groupId))->find();
            if ($info['user_id']!=$this->userId){
                $data = array('code'=>1,'msg'=>'无权限编辑该群组');
                $this->returnData($data);exit;
            }
            if ($info['group_name'] != $groupName && !empty($groupName)){
                M('Group')->where(array('group_id'=>$info['group_id']))->save(array('group_name'=>$groupName));
            }
            $userIdArr = explode(',', $userIds);
            foreach ($userIdArr as $uid){
                $groupUserInfo = M('GroupUser')->where(array('group_id'=>$info['group_id'],'user_id'=>$uid))->find();
                if ($groupUserInfo){
                    continue;
                }
                $noticeContent = $userInfo['user_name'].'已成功邀您加入“'.$groupName.'”群组，详情可进入到我的好友-群组中查看';
                $noticeList[] = array('user_id'=>$this->userId,'ref_user_id'=>$uid,'notice_content'=>$noticeContent,'operate_dt'=>time(),'notice_type'=>1,'notice_title'=>'群消息',);
                M('User')->where(array('user_id'=>$uid))->setInc('friend_notice');
                $dataList[] = array('user_id'=>$uid, 'group_id'=>$groupId, 'operate_dt'=>time(),);
            }
            //$dataList[] = array('user_id'=>$this->userId, 'group_id'=>$groupId, 'operate_dt'=>time(),);
            if (count($dataList)){
                M('Notice')->addAll($noticeList);
                M('GroupUser')->addAll($dataList);
                M('Group')->where(array('group_id'=>$groupId))->setInc('group_num',count($dataList));
            }
        }
        $data = array('code'=>0,'msg'=>'群组编辑成功');
        $this->returnData($data);exit;
    }
    
    //删除群组
    public function del(){
        $groupId = I('group_id');
        $info = M('Group')->where(array('group_id'=>$groupId))->find();
        if ($info==NULL){
            $data = array('code'=>1,'msg'=>'群组id错误');
            $this->returnData($data);exit;
        }
        if ($info['user_id']==$this->userId){
            M('GroupUser')->where(array('group_id'=>$info['group_id'],'user_id'=>$this->userId,))->delete();
            //自己创建的群组，删除后，最早的成员，设置成群管理员
            $groupUserInfo = M('GroupUser')->where(array('group_id'=>$info['group_id'],))->order('gu_id asc')->limit(1)->find();
            if ($groupUserInfo){
                M('Group')->where(array('group_id'=>$groupId))->save(array('user_id'=>$groupUserInfo['user_id']));
            }else{
                M('Group')->where(array('group_id'=>$groupId))->delete();
            }
        }else{
            M('GroupUser')->where(array('group_id'=>$info['group_id'],'user_id'=>$this->userId,))->delete();
        }
        $data = array('code'=>0,'msg'=>'退出群组成功');
        $this->returnData($data);exit;
    }
    
    //获取已经添加指定群的用户
    public function getUserListByGroupId(){
        $groupId = I('group_id');
        $join = 'gu LEFT JOIN t_user u ON gu.user_id=u.user_id';
        $res = M('GroupUser')->join($join)->where(array('group_id'=>$groupId,'gu.user_id'=>array('neq','u.user_id'),))->field('u.user_id,user_phone,user_name,user_level,user_sex,user_icon')->select();
        //echo  M('GroupUser')->getLastSql();exit;
        $userNameArr = $this->getUserNickname();
        if ($res==NULL){
            $res = array();
        }
        foreach ($res as $key=>$val){
            if (isset($userNameArr[$val['user_id']])){
                $res[$key]['user_nickname'] = $userNameArr[$val['user_id']]['user_nickname'];
            }
        }
        $data = array('code'=>0,'msg'=>'','data'=>$res);
        $this->returnData($data);exit;
    }
    
}