<?php

namespace app\admin\model\live;

use think\Model;


class User extends Model
{

    // 表名
    protected $name = 'live_user';

    protected $onlineUserTime = 30;

    // 自动写入时间戳字段
    protected $autoWriteTimestamp = 'integer';

    // 定义时间戳字段名
    protected $createTime = 'createtime';
    protected $updateTime = false;
    protected $deleteTime = false;

    // 追加属性
    protected $append = [
        'black_text',
        'bantalk_text'
    ];

    public function getBlackList()
    {
        \think\Lang::load(APP_PATH.'/admin/lang/zh-cn/live/user.php');
        return ['1' => __('Black 1'), '0' => __('Black 0')];
    }


    public function getBlackTextAttr($value, $data)
    {
        $value = $value ? $value : (isset($data['black']) ? $data['black'] : '');
        $list = $this->getBlackList();
        return isset($list[$value]) ? $list[$value] : '';
    }

    public function getBantalkList()
    {
        \think\Lang::load(APP_PATH.'/admin/lang/zh-cn/live/user.php');
        return ['1' => __('Bantalk 1'), '0' => __('Bantalk 0')];
    }


    public function getBantalkTextAttr($value, $data)
    {
        $value = $value ? $value : (isset($data['bantalk']) ? $data['bantalk'] : '');
        $list = $this->getBantalkList();
        return isset($list[$value]) ? $list[$value] : '';
    }


    /**
     * 获取在线的用户 ID
     * @param $liveId 直播间
     * @param $time 时间节点
     * @return void
     */
    public function getOnlineUserIds($liveId,$time = null){
        $serviceUserIds = $this->getMessageProviderOnlineUserIds($liveId);
        if(!empty($serviceUserIds)){
            return $serviceUserIds;
        }

        if(!$time){
            $time = time();
        }

        $studyModel = new \app\common\model\user\Study;
        $onlineUserIds = $studyModel->where([
            'course_id'=>$liveId
        ])->where('end_time','between',[($time - $this->onlineUserTime),($time + $this->onlineUserTime)])->group('user_id')->column('user_id');
        
        return $onlineUserIds;
    }

    /**
     * 获取在线的用户数量
     * @param $liveId 直播间
     * @param $time 时间节点
     * @return void
     */
    public function getOnlineUserCount($liveId){
        $serviceUserIds = $this->getMessageProviderOnlineUserIds($liveId);
        if(!empty($serviceUserIds)){
            return count($serviceUserIds);
        }

        $time = time();
        $studyModel = new \app\common\model\user\Study;
        $onlineUserIds = $studyModel->where([
            'course_id'=>$liveId
        ])->where('end_time','between',[($time - $studyModel->timeStep) - 15,($time + $studyModel->timeStep) + 15])->group('user_id')->column('user_id');

        return count($onlineUserIds);
    }

    /**
     * 获取互动消息服务中的在线用户 ID。
     * @param int $liveId
     * @return array
     */
    protected function getMessageProviderOnlineUserIds($liveId)
    {
        if(!$liveId){
            return [];
        }

        $room = \app\common\model\live\Room::where(['course_id'=>$liveId])->field('message_topic')->find();
        if(!$room || empty($room['message_topic'])){
            return [];
        }

        $provider = \app\common\library\live\message\Manager::getGlobalProviderName();

        // 阿里云模式下，确保群组存在（兼容历史直播间未建群场景）
        if ($provider === 'aliyun') {
            $courseModel = new \app\admin\model\Course;
            $course = $courseModel->where(['id' => $liveId])->field('name')->find();
            $groupName = ($course && $course['name']) ? $course['name'] : '';
            \app\common\library\live\message\Manager::ensureAliyunGroup($room['message_topic'], $groupName);
        }

        $data = \app\common\library\live\Message::getOnlineUserByProvider($provider, $room['message_topic'], 0, 200);
        if(!$data || empty($data['list'])){
            return [];
        }

        $userIds = [];
        foreach ($data['list'] as $item) {
            $userId = $this->parseOnlineUserId($item, $provider);
            if($userId){
                $userIds[] = $userId;
            }
        }

        return array_values(array_unique($userIds));
    }

    /**
     * 将服务商在线用户标识转换为业务用户 ID。
     * @param string $item
     * @param string $provider
     * @return int
     */
    protected function parseOnlineUserId($item, $provider)
    {
        $item = (string)$item;
        if($item === '' || $item === 'admin' || strpos($item, 'admin-') === 0 || $item === 'system'){
            return 0;
        }

        if($provider === 'aliyun'){
            if(strpos($item, 'u-') === 0){
                $id = substr($item, 2);
                return ctype_digit($id) ? (int)$id : 0;
            }
            return ctype_digit($item) ? (int)$item : 0;
        }

        $userData = \app\common\library\Token::get($item);
        if($userData && isset($userData['user_id'])){
            return (int)$userData['user_id'];
        }

        return ctype_digit($item) ? (int)$item : 0;
    }


    /**
     * 加入直播
     * @param $userId 用户
     * @param $liveId 直播间
     * @return array 成员信息
     */
    public function joinLive($userId,$liveId){

        $isJoin = self::where([
            'user_id'=>$userId,
            'live_id'=>$liveId
        ])->cache(\app\common\constant\cache\Keys::LIVEUSER($userId,$liveId))->find();
        
        if(!$isJoin){
            $data = [
                'user_id'=>$userId,
                'live_id'=>$liveId,
                'uniacid'=>UNIACID,
                'bantalk'=>0,
                'black'=>0,
                'createtime'=>time()
            ];
            self::insert($data);

            return $data;
        }

        return $isJoin;
    }


    public function course()
    {
        return $this->belongsTo('app\admin\model\Course', 'live_id', 'id', [], 'LEFT')->setEagerlyType(0);
    }


    public function binduser()
    {
        return $this->belongsTo('app\admin\model\User', 'user_id', 'id', [], 'LEFT')->setEagerlyType(0);
    }
}