<?php
namespace Api\Controller;
use Common\Controller\ApiController;
class FansController extends ApiController {
    public function __construct(){
        parent::__construct();
    }
    
    //用户关注的所有人的列表
    public function index(){
        $userId = I('uid');
        $lastId = I('last_id',0);
        $pageSize = I('page_size',20);
		$user_name = I('user_name');
        if (empty($userId)){
            $userId = $this->userId;
        }
        $res = $this->fans($userId, $lastId, $pageSize, $user_name );
        /* if ($res==NULL){
            $res = array(new \stdClass());
        } */
        if ($res==NULL && $lastId>0){
            $data = array('code'=>0,'msg'=>'无更多数据','data'=>array());
            $this->returnData($data);exit;
        }
        $data = array('code'=>0,'msg'=>'','data'=>$res,);
        $this->returnData($data);exit;
    }
	 //关注此用户的所有人的列表
    public function user(){
        $userId = I('uid');
        $lastId = I('last_id',0);
        $pageSize = I('page_size',20);
		$user_name = I('user_name');
        if (empty($userId)){
            $userId = $this->userId;
        }
        $res = $this->fans_user($userId, $lastId, $pageSize, $user_name );
        /* if ($res==NULL){
            $res = array(new \stdClass());
        } */
        if ($res==NULL && $lastId>0){
            $data = array('code'=>0,'msg'=>'无更多数据','data'=>array());
            $this->returnData($data);exit;
        }
        $data = array('code'=>0,'msg'=>'','data'=>$res,);
        $this->returnData($data);exit;
    }
    
    //用户关注的所有人的动态
    public function course(){
        $lastId = I('last_id',0);
        $pageSize = I('page_size',20);
        $userRes = $this->fans($this->userId, $lastId, $pageSize);
        if ($userRes==NULL && $lastId>0){
            $data = array('code'=>0,'msg'=>'无更多数据','data'=>array());
            $this->returnData($data);exit;
        }
        $fansArr = array();
        $userIdArr = array();
        foreach ($userRes as $row){
            $userIdArr[] = $row['user_id'];
            $fansArr[$row['user_id']] = $row['fans_id'];
        }
        if (empty($userIdArr)){
            $data = array('code'=>0,'msg'=>'','data'=>array());
            $this->returnData($data);exit;
        }
        $condition = array('course_status'=>3,'course_flag'=>1,'is_show'=>1);
        $condition['user_id']=array('IN',$userIdArr);
        $orderby = 'course_id desc';
        $pageSize = I('page_size',1000);
        $res = D('Course')->getCourseList($condition, $pageSize, $orderby);
        if ($res!=NULL){
            $userWordsRes = $this->square();
            foreach ($res as $key=>$row){
                if (in_array($row['course_id'], $userWordsRes) || $row['user_id']==$this->userId){
                    $res[$key]['is_add'] = 1;
                }else{
                    $res[$key]['is_add'] = 0;
                }
                $res[$key]['fans_id'] = $fansArr[$row['user_id']];
            }
        }
        $data = array('code'=>0,'msg'=>'','data'=>$res);
        $this->returnData($data);exit;
    }
    
    //关注和取消关注
    public function edit(){
        $uid = I('uid');
        //1:关注,0:取关
        $toFollow = I('to_follow');
        if (!in_array($toFollow, array(0,1))){
            $data = array('code'=>0,'msg'=>'类型错误');
            $this->returnData($data);exit;
        }
        $userInfo = M('User')->where(array('user_id'=>$uid))->field('user_id')->find();
        if ($userInfo==NULL){
            $data = array('code'=>0,'msg'=>'用户id错误');
            $this->returnData($data);exit;
        }
        $res = M('Fans')->where(array('user_id'=>$this->userId,'fans_user_id'=>$uid))->field('fans_id')->find();
        if ($toFollow==1){
            if ($res==NULL){
                M('Fans')->add(array('user_id'=>$this->userId,'fans_user_id'=>$uid,'operate_dt'=>time(),));
                $data = array('code'=>0,'msg'=>'关注成功');
                $this->returnData($data);exit;
            }else{
                $data = array('code'=>0,'msg'=>'关注成功');
                $this->returnData($data);exit;
            }
        }else if($toFollow==0){
            if ($res==NULL){
                $data = array('code'=>0,'msg'=>'获取关注信息错误');
                $this->returnData($data);exit;
            }else{
                M('Fans')->where(array('user_id'=>$this->userId,'fans_user_id'=>$uid))->delete();
                $data = array('code'=>0,'msg'=>'取消关注成功');
                $this->returnData($data);exit;
            }
        }else{
            $data = array('code'=>1,'msg'=>'用户id错误');
            $this->returnData($data);exit;
        }
    }
    
    //获取关注列表
    private function fans($userId, $lastId, $pageSize, $user_name=''){
        if (!empty($lastId)){
            $join = 'f LEFT JOIN t_user u ON u.user_id=f.fans_user_id';
			$arr=array('f.user_id'=>$userId,'fans_id'=>array('LT',$lastId),);
			if($user_name){
				$arr['user_name']=array('like', "%{$user_name}%");
			}
            $res = M('Fans')->join($join)->where($arr)->order('fans_id desc')->limit($pageSize)->field('fans_id,u.user_id,user_name,user_icon')->select();
        }else{
            $join = 'f LEFT JOIN t_user u ON u.user_id=f.fans_user_id';
			$arr=array('f.user_id'=>$userId,);
			if($user_name){
				$arr['user_name']=array('like', "%{$user_name}%");
			}
            $res = M('Fans')->join($join)->where($arr)->order('fans_id desc')->limit($pageSize)->field('fans_id,u.user_id,user_name,user_icon')->select();
        }
        return $res;
    }
	//获取被关注列表
    private function fans_user($userId, $lastId, $pageSize, $user_name=''){
        
		$join = 'f LEFT JOIN t_user u ON u.user_id=f.user_id';
		
		$arr=array('f.fans_user_id'=>$userId);
		if (!empty($lastId)){
			$arr['fans_id']=array('LT',$lastId);
		}
		if($user_name){
			$arr['user_name']=array('like', "%{$user_name}%");
		}
		$res = M('Fans')->join($join)->where($arr)->order('fans_id desc')->limit($pageSize)->field('fans_id,u.user_id,user_name,user_icon')->select();
			
		foreach($res as $k=>&$v){
			$fansInfo = M('Fans')->where(array('user_id'=>$userId,'fans_user_id'=>$v['user_id']))->field('fans_id')->find();
            $v['is_fans'] = $fansInfo==NULL?0:1;
		}
        return $res;
    }
    
    //获取已经添加的课程或者自由记
    private function square($uwType=0){
        $condition = array('user_id'=>$this->userId);
        if (!empty($uwType)){
            $condition['uw_type'] = $uwType;
        }
        $res = M('UserWords')->where($condition)->field('course_id')->select();
        if ($res==NULL){
            return array();
        }
        $arr = array();
        foreach ($res as $r){
            $arr[] = $r['course_id'];
        }
        return $arr;
    }
}