<?php

namespace app\common\model;

use think\Db;
use think\Model;

/**
 * 邀请
 */
class User extends Model
{
    protected $table = 'user';

    /**
     * 更新邀请码数和推荐团队人数
     * @param string $intro_id 用户id
     * @param integer $num 直推增减人数
     * @param integer $team 团队增减人数
     */
    public function addIntroNum($intro_id, $num, $team)
    {
        //更新直推人数
        if($num < 0) {
            $this->where(['id' => $intro_id])->setDec('intro_num', abs($num));
        } else {
            $this->where(['id' => $intro_id])->setInc('intro_num', $num);
        }
        //更新团队
        $rstjr = $this->where(['id' => $intro_id])->field('id,intro_ids')->find();
        if($rstjr) {
            $tjstr = $rstjr['intro_ids'] . "," . $rstjr['id'];
            $tjstr = trim($tjstr, ',');
            $arr_intro = explode(',', $tjstr);


            if($team < 0) {
                $this->where(['id' => ['in', $arr_intro]])->setDec('intro_num_all', abs($team));
            } else {
                $this->where(['id' => ['in', $arr_intro]])->setInc('intro_num_all', $team);
            }


        }
    }

    /**
     * 获取上几代推荐人
     * @param string $ids 上级id
     * @param int $max 代数
     * @return false|\PDOStatement|string|\think\Collection
     */
    public function getUp($ids = '', $max = 1)
    {
        if($ids) {
            $intro_arr = explode(',', $ids);
            $intro_arr = array_filter($intro_arr);
            $intro_arr = array_slice($intro_arr, -$max);

            $info = Db::name('user')
                ->where(['id' => ['in', $intro_arr]])
                ->field('id,username,nickname,logo,mobile,email,rank')
                ->order('intro_level desc') //按级别倒序，级别越大越靠近本人
                ->limit($max)
                ->select();
        }
        return $info ?? '';
    }

    /**
     * 获取上几代推荐人
     */
    function getUpComplex($username, $min = 1, $max = 1, $str = '', $step = 0)
    {
        if($max >= $step) {
            $user = Db::name('user')->where(['username' => $username])->field("username,intro")->find();
            if($user['username']) {
                if($step >= $min) {
                    $str .= ",".$user["username"];
                }
                if($user['intro']) {
                    return $this->getUpComplex($user['intro'], $min, $max, $str, $step + 1);
                }
            }
        }
        return $str;
    }
}