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new-api/model/checkin.go

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package model
import (
"errors"
"math/rand"
"time"
"github.com/QuantumNous/new-api/common"
"github.com/QuantumNous/new-api/setting/operation_setting"
"gorm.io/gorm"
)
// Checkin 签到记录
type Checkin struct {
Id int `json:"id" gorm:"primaryKey;autoIncrement"`
UserId int `json:"user_id" gorm:"not null;uniqueIndex:idx_user_checkin_date"`
CheckinDate string `json:"checkin_date" gorm:"type:varchar(10);not null;uniqueIndex:idx_user_checkin_date"` // 格式: YYYY-MM-DD
QuotaAwarded int `json:"quota_awarded" gorm:"not null"`
CreatedAt int64 `json:"created_at" gorm:"bigint"`
}
// CheckinRecord 用于API返回的签到记录不包含敏感字段
type CheckinRecord struct {
CheckinDate string `json:"checkin_date"`
QuotaAwarded int `json:"quota_awarded"`
}
func (Checkin) TableName() string {
return "checkins"
}
// GetUserCheckinRecords 获取用户在指定日期范围内的签到记录
func GetUserCheckinRecords(userId int, startDate, endDate string) ([]Checkin, error) {
var records []Checkin
err := DB.Where("user_id = ? AND checkin_date >= ? AND checkin_date <= ?",
userId, startDate, endDate).
Order("checkin_date DESC").
Find(&records).Error
return records, err
}
// HasCheckedInToday 检查用户今天是否已签到
func HasCheckedInToday(userId int) (bool, error) {
today := time.Now().Format("2006-01-02")
var count int64
err := DB.Model(&Checkin{}).
Where("user_id = ? AND checkin_date = ?", userId, today).
Count(&count).Error
return count > 0, err
}
// UserCheckin 执行用户签到
// MySQL 和 PostgreSQL 使用事务保证原子性
// SQLite 不支持嵌套事务,使用顺序操作 + 手动回滚
func UserCheckin(userId int) (*Checkin, error) {
setting := operation_setting.GetCheckinSetting()
if !setting.Enabled {
return nil, errors.New("签到功能未启用")
}
// 检查今天是否已签到
hasChecked, err := HasCheckedInToday(userId)
if err != nil {
return nil, err
}
if hasChecked {
return nil, errors.New("今日已签到")
}
// 计算随机额度奖励
quotaAwarded := setting.MinQuota
if setting.MaxQuota > setting.MinQuota {
quotaAwarded = setting.MinQuota + rand.Intn(setting.MaxQuota-setting.MinQuota+1)
}
today := time.Now().Format("2006-01-02")
checkin := &Checkin{
UserId: userId,
CheckinDate: today,
QuotaAwarded: quotaAwarded,
CreatedAt: time.Now().Unix(),
}
// 根据数据库类型选择不同的策略
if common.UsingSQLite {
// SQLite 不支持嵌套事务,使用顺序操作 + 手动回滚
return userCheckinWithoutTransaction(checkin, userId, quotaAwarded)
}
// MySQL 和 PostgreSQL 支持事务,使用事务保证原子性
return userCheckinWithTransaction(checkin, userId, quotaAwarded)
}
// userCheckinWithTransaction 使用事务执行签到(适用于 MySQL 和 PostgreSQL
func userCheckinWithTransaction(checkin *Checkin, userId int, quotaAwarded int) (*Checkin, error) {
err := DB.Transaction(func(tx *gorm.DB) error {
// 步骤1: 创建签到记录
// 数据库有唯一约束 (user_id, checkin_date),可以防止并发重复签到
if err := tx.Create(checkin).Error; err != nil {
return errors.New("签到失败,请稍后重试")
}
// 步骤2: 在事务中增加用户额度
if err := tx.Model(&User{}).Where("id = ?", userId).
Update("quota", gorm.Expr("quota + ?", quotaAwarded)).Error; err != nil {
return errors.New("签到失败:更新额度出错")
}
return nil
})
if err != nil {
return nil, err
}
// 事务成功后,异步更新缓存
go func() {
_ = cacheIncrUserQuota(userId, int64(quotaAwarded))
}()
return checkin, nil
}
// userCheckinWithoutTransaction 不使用事务执行签到(适用于 SQLite
func userCheckinWithoutTransaction(checkin *Checkin, userId int, quotaAwarded int) (*Checkin, error) {
// 步骤1: 创建签到记录
// 数据库有唯一约束 (user_id, checkin_date),可以防止并发重复签到
if err := DB.Create(checkin).Error; err != nil {
return nil, errors.New("签到失败,请稍后重试")
}
// 步骤2: 增加用户额度
// 使用 db=true 强制直接写入数据库,不使用批量更新
if err := IncreaseUserQuota(userId, quotaAwarded, true); err != nil {
// 如果增加额度失败,需要回滚签到记录
DB.Delete(checkin)
return nil, errors.New("签到失败:更新额度出错")
}
return checkin, nil
}
// GetUserCheckinStats 获取用户签到统计信息
func GetUserCheckinStats(userId int, month string) (map[string]interface{}, error) {
// 获取指定月份的所有签到记录
startDate := month + "-01"
endDate := month + "-31"
records, err := GetUserCheckinRecords(userId, startDate, endDate)
if err != nil {
return nil, err
}
// 转换为不包含敏感字段的记录
checkinRecords := make([]CheckinRecord, len(records))
for i, r := range records {
checkinRecords[i] = CheckinRecord{
CheckinDate: r.CheckinDate,
QuotaAwarded: r.QuotaAwarded,
}
}
// 检查今天是否已签到
hasCheckedToday, _ := HasCheckedInToday(userId)
// 获取用户所有时间的签到统计
var totalCheckins int64
var totalQuota int64
DB.Model(&Checkin{}).Where("user_id = ?", userId).Count(&totalCheckins)
DB.Model(&Checkin{}).Where("user_id = ?", userId).Select("COALESCE(SUM(quota_awarded), 0)").Scan(&totalQuota)
return map[string]interface{}{
"total_quota": totalQuota, // 所有时间累计获得的额度
"total_checkins": totalCheckins, // 所有时间累计签到次数
"checkin_count": len(records), // 本月签到次数
"checked_in_today": hasCheckedToday, // 今天是否已签到
"records": checkinRecords, // 本月签到记录详情不含id和user_id
}, nil
}