midi-php/application/common/model/Redpacket.php

<?php

namespace app\common\model;

use think\Model;
use think\Db;

class Redpacket extends Model
{
    // 红包状态
    const STATUS_PENDING = 0; // 未开始
    const STATUS_ACTIVE = 1;  // 进行中
    const STATUS_FINISHED = 2; // 已结束
    const STATUS_REFUNDED = 3; // 已退回

    // 红包类型
    const TYPE_NORMAL = 1;    // 普通红包
    const TYPE_PASSWORD = 2;  // 口令红包

    // 币种类型
    const COIN_GOLD = 1;      // 金币
    const COIN_DIAMOND = 2;   // 钻石

    // 倒计时选项
    public static $countdownOptions = [
        0 => '立刻',
        60 => '1分钟',
        120 => '2分钟',
        300 => '5分钟',
        600 => '10分钟'
    ];

    // 领取条件
    const CONDITION_NONE = 0;
    const CONDITION_COLLECT_ROOM = 1;
    const CONDITION_MIC_USER = 2;

    protected $autoWriteTimestamp = true;
    protected $createTime = 'createtime';
    protected $updateTime = 'updatetime';

    /**
     * 发红包
     */
    public function createRedpacket($data)
    {
        Db::startTrans();
        try {
            // 验证用户余额
            $wallet = Db::name('user_wallet')->where('user_id', $data['user_id'])->find();

            $coinField = $data['coin_type'] == self::COIN_GOLD ? 'coin' : 'earnings';
            if ($wallet[$coinField] < $data['total_amount']) {
                return ['code' => 0, 'msg' => '余额不足', 'data' => null];
            }

            // 扣除余额
            $delres = Db::name('user_wallet')
                ->where('user_id', $data['user_id'])
                ->dec($coinField, $data['total_amount'])
                ->update();
            //记录日志 32-发红包（金币），29-发红包（钻石），30-抢红包（金币），31-抢红包（钻石）
            //记录用户金币日志
            $data = [
                'user_id' => $data['user_id'],
                'change_value' => $data['total_amount'],
                'room_id' => $data['room_id'],
                'money_type' => $data['coin_type'],
                'change_type' => $coinField == self::COIN_GOLD ? 32 : 29,
                'from_id' => $data['room_id'],
                'remarks' => $coinField == self::COIN_GOLD ? '金币(发红包)' : '钻石(发红包)',
                'createtime' => time()
            ];

            $res = Db::name('vs_user_money_log')->insert($data);
            if(!$res || !$delres){
                Db::rollback();
            }
            // 计算开始时间
            $startTime = $data['countdown'] > 0 ? (time() + $data['countdown']) : time();
            $endTime = $startTime + 120; // 2分钟后结束

            // 创建红包
            $redpacketData = [
                'user_id' => $data['user_id'],
                'room_id' => $data['room_id'],
                'type' => $data['type'],
                'password' => $data['password'] ?? '',
                'countdown' => $data['countdown'],
                'coin_type' => $data['coin_type'],
                'total_amount' => $data['total_amount'],
                'total_count' => $data['total_count'],
                'left_amount' => $data['total_amount'],
                'left_count' => $data['total_count'],
                'conditions' => $data['conditions'] ??  '',
                'status' => $data['countdown'] > 0 ? self::STATUS_PENDING : self::STATUS_ACTIVE,
                'start_time' => $startTime,
                'end_time' => $endTime,
                'createtime' => time()
            ];

            $redpacketId = $this->insertGetId($redpacketData);

            // 设置Redis缓存
            $redis = \think\Cache::store('redis')->handler();
            $redisKey = "redpacket:{$redpacketId}";
            $redis->hMSet($redisKey, [
                'total_amount' => $data['total_amount'],
                'left_amount' => $data['total_amount'],
                'total_count' => $data['total_count'],
                'left_count' => $data['total_count'],
                'status' => $redpacketData['status'],
                'start_time' => $startTime,
                'end_time' => $endTime
            ]);

            // 设置过期时间
            $redis->expireAt($redisKey, $endTime + 3600); // 结束后保留1小时

            Db::commit();
            return ['code' => 1, 'msg' => '发红包成功', 'data' => $redpacketId];

        } catch (\Exception $e) {
            Db::rollback();
            return ['code' => 0, 'msg' => $e->getMessage(), 'data' => null];
        }
    }

    /**
     * 获取红包信息
     */
    public function getRedpacketInfo($id)
    {
        $redpacket = $this->find($id);
        if (!$redpacket) {
            return null;
        }

        $redpacket = $redpacket->toArray();
        $redpacket['nickname'] = Db::name('user')->where('id', $redpacket['user_id'])->value('nickname');

        return $redpacket;
    }
}