增加用户认证、等级、徽章与积分体系，并优化管理后台体验。
覆盖站长调账与积分解锁内容；后台按审核优先分组导航，仪表盘展示待办，用户管理改为成员目录式布局。 Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
272
service/points.go
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272
service/points.go
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package service
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import (
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"crypto/rand"
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"errors"
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"fmt"
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"math/big"
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"time"
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"git.iioio.com/freefire/jiang13-forum/model"
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"gorm.io/gorm"
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"gorm.io/gorm/clause"
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)
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var (
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ErrInsufficientPoints = errors.New("积分不足")
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ErrAlreadyCheckedIn = errors.New("今日已签到")
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ErrAlreadyLottery = errors.New("今日已抽奖")
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ErrInvalidPointsDelta = errors.New("无效的积分变动")
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)
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// PointsService 积分钱包、签到、抽奖
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type PointsService struct{}
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func NewPointsService() *PointsService { return &PointsService{} }
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func todayLocal() string {
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return time.Now().Format("2006-01-02")
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}
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// AdjustPointsTx 在已有事务内调整积分并写流水；返回变动后余额
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func AdjustPointsTx(tx *gorm.DB, userID uint, delta int, reason, refType string, refID uint, note string) (int, error) {
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if delta == 0 {
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var u model.User
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if err := tx.Select("points").First(&u, userID).Error; err != nil {
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return 0, err
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}
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return u.Points, nil
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}
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var user model.User
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if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&user, userID).Error; err != nil {
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return 0, err
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}
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newBal := user.Points + delta
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if newBal < 0 {
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return 0, ErrInsufficientPoints
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}
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if err := tx.Model(&user).Update("points", newBal).Error; err != nil {
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return 0, err
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}
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led := model.PointLedger{
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UserID: userID,
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Delta: delta,
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Balance: newBal,
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Reason: reason,
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RefType: refType,
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RefID: refID,
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Note: note,
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}
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if err := tx.Create(&led).Error; err != nil {
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return 0, err
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}
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return newBal, nil
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}
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// AdjustPoints 独立事务调整积分
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func (s *PointsService) AdjustPoints(userID uint, delta int, reason, refType string, refID uint, note string) (int, error) {
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var bal int
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err := model.DB.Transaction(func(tx *gorm.DB) error {
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var e error
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bal, e = AdjustPointsTx(tx, userID, delta, reason, refType, refID, note)
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return e
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})
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return bal, err
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}
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// AdminAdjust 站长调账
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func (s *PointsService) AdminAdjust(userID uint, delta int, note string) (int, error) {
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if delta == 0 {
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return 0, ErrInvalidPointsDelta
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}
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return s.AdjustPoints(userID, delta, model.PointReasonAdminAdjust, "admin", 0, note)
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}
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// CheckInStatus 今日签到状态
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type CheckInStatus struct {
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CheckedIn bool `json:"checked_in"`
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Streak int `json:"streak"`
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TodayPoints int `json:"today_points"` // 若已签到为实得；否则为预计可得
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Day string `json:"day"`
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}
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func (s *PointsService) GetCheckInStatus(userID uint) (CheckInStatus, error) {
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day := todayLocal()
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st := CheckInStatus{Day: day}
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var row model.CheckIn
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err := model.DB.Where("user_id = ? AND day = ?", userID, day).Limit(1).Find(&row).Error
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if err != nil {
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return st, err
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}
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if row.ID > 0 {
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st.CheckedIn = true
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st.Streak = row.Streak
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st.TodayPoints = row.Points
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return st, nil
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}
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streak := s.computeNextStreak(userID, day)
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st.Streak = streak
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st.TodayPoints = checkInReward(streak)
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return st, nil
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}
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func (s *PointsService) computeNextStreak(userID uint, today string) int {
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yesterday := time.Now().AddDate(0, 0, -1).Format("2006-01-02")
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var prev model.CheckIn
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model.DB.Where("user_id = ? AND day = ?", userID, yesterday).Limit(1).Find(&prev)
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if prev.ID > 0 {
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return prev.Streak + 1
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}
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return 1
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}
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func checkInReward(streak int) int {
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// 基础 5，连续每日 +1，封顶 15
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pts := 5 + (streak - 1)
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if pts > 15 {
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pts = 15
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}
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if pts < 5 {
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pts = 5
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}
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return pts
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}
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// CheckIn 每日签到
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func (s *PointsService) CheckIn(userID uint) (CheckInStatus, error) {
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day := todayLocal()
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var out CheckInStatus
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err := model.DB.Transaction(func(tx *gorm.DB) error {
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var existing model.CheckIn
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if err := tx.Where("user_id = ? AND day = ?", userID, day).Limit(1).Find(&existing).Error; err != nil {
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return err
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}
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if existing.ID > 0 {
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return ErrAlreadyCheckedIn
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}
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yesterday := time.Now().AddDate(0, 0, -1).Format("2006-01-02")
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var prev model.CheckIn
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_ = tx.Where("user_id = ? AND day = ?", userID, yesterday).Limit(1).Find(&prev).Error
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streak := 1
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if prev.ID > 0 {
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streak = prev.Streak + 1
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}
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pts := checkInReward(streak)
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row := model.CheckIn{UserID: userID, Day: day, Points: pts, Streak: streak}
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if err := tx.Create(&row).Error; err != nil {
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return err
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}
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if _, err := AdjustPointsTx(tx, userID, pts, model.PointReasonCheckIn, "check_in", row.ID, fmt.Sprintf("连续签到 %d 天", streak)); err != nil {
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return err
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}
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out = CheckInStatus{CheckedIn: true, Streak: streak, TodayPoints: pts, Day: day}
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return nil
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})
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return out, err
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}
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// LotteryPrize 奖池项
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type LotteryPrize struct {
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Points int `json:"points"`
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Weight int `json:"weight"`
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}
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var defaultLotteryPool = []LotteryPrize{
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{Points: 0, Weight: 40},
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{Points: 2, Weight: 30},
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{Points: 5, Weight: 18},
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{Points: 10, Weight: 10},
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{Points: 20, Weight: 2},
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}
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// LotteryStatus 抽奖状态
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type LotteryStatus struct {
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Drawn bool `json:"drawn"`
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Points int `json:"points"` // 今日已抽中
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Day string `json:"day"`
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Pool []LotteryPrize `json:"pool"`
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Cost int `json:"cost"` // 抽奖消耗，首版 0
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}
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func (s *PointsService) GetLotteryStatus(userID uint) (LotteryStatus, error) {
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day := todayLocal()
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st := LotteryStatus{Day: day, Pool: defaultLotteryPool, Cost: 0}
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var row model.LotteryDraw
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if err := model.DB.Where("user_id = ? AND day = ?", userID, day).Limit(1).Find(&row).Error; err != nil {
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return st, err
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}
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if row.ID > 0 {
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st.Drawn = true
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st.Points = row.Points
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}
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return st, nil
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}
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func pickLottery(pool []LotteryPrize) (int, error) {
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total := 0
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for _, p := range pool {
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total += p.Weight
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}
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if total <= 0 {
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return 0, errors.New("奖池无效")
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}
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n, err := rand.Int(rand.Reader, big.NewInt(int64(total)))
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if err != nil {
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return 0, err
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}
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v := int(n.Int64())
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for _, p := range pool {
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if v < p.Weight {
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return p.Points, nil
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}
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v -= p.Weight
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}
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return pool[len(pool)-1].Points, nil
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}
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// DrawLottery 每日抽奖
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func (s *PointsService) DrawLottery(userID uint) (LotteryStatus, error) {
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day := todayLocal()
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var out LotteryStatus
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err := model.DB.Transaction(func(tx *gorm.DB) error {
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var existing model.LotteryDraw
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if err := tx.Where("user_id = ? AND day = ?", userID, day).Limit(1).Find(&existing).Error; err != nil {
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return err
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}
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if existing.ID > 0 {
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return ErrAlreadyLottery
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}
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pts, err := pickLottery(defaultLotteryPool)
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if err != nil {
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return err
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}
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row := model.LotteryDraw{UserID: userID, Day: day, Points: pts}
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if err := tx.Create(&row).Error; err != nil {
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return err
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}
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if pts > 0 {
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if _, err := AdjustPointsTx(tx, userID, pts, model.PointReasonLottery, "lottery", row.ID, "每日抽奖"); err != nil {
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return err
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}
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}
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out = LotteryStatus{Drawn: true, Points: pts, Day: day, Pool: defaultLotteryPool, Cost: 0}
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return nil
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})
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return out, err
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}
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// ListLedger 积分流水
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func (s *PointsService) ListLedger(userID uint, page, size int) ([]model.PointLedger, int64, error) {
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if page < 1 {
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page = 1
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}
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if size < 1 || size > 50 {
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size = 20
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}
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var total int64
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model.DB.Model(&model.PointLedger{}).Where("user_id = ?", userID).Count(&total)
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var rows []model.PointLedger
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err := model.DB.Where("user_id = ?", userID).Order("id desc").
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Offset((page - 1) * size).Limit(size).Find(&rows).Error
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return rows, total, err
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}
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