<?php

namespace app\common\model\plus\groupbuy;

use app\common\model\BaseModel;

/**
 * 团购用户参与记录模型
 */
class BillUser extends BaseModel
{
    protected $name = 'groupbuy_bill_user';
    protected $pk = 'groupbuy_bill_user_id';

    /**
     * 获取团购用户参与记录详情
     */
    public static function detail($groupbuy_bill_user_id)
    {
        return (new static())->where('groupbuy_bill_user_id', '=', $groupbuy_bill_user_id)->find();
    }

    /**
     * 根据团购订单ID获取参与用户
     */
    public static function getUsersByBillId($groupbuy_bill_id)
    {
        return (new static())
            ->where('groupbuy_bill_id', '=', $groupbuy_bill_id)
            ->with(['user'])
            ->select();
    }

    /**
     * 关联用户表
     */
    public function user()
    {
        return $this->belongsTo('app\\common\\model\\user\\User', 'user_id', 'user_id')
            ->bind('nickName,avatarUrl');
    }

    /**
     * 检查用户是否已参与某个团购
     */
    public static function checkUserJoined($user_id, $groupbuy_bill_id)
    {
        return (new static())
            ->where('user_id', '=', $user_id)
            ->where('groupbuy_bill_id', '=', $groupbuy_bill_id)
            ->find();
    }
}