ahp
422e6ed289
Expose learning, registration controls, mentor chat, realtime WebSocket, and staff administration.
95 lines
2.4 KiB
Go
95 lines
2.4 KiB
Go
package api
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import (
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"context"
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"net/http"
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"strconv"
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"time"
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"pargar/backend/internal/service"
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)
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type lbEntry struct {
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UserID int64 `json:"userId"`
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Name string `json:"name"`
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Email string `json:"email"`
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XP float64 `json:"xp"`
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Rank int `json:"rank"`
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AvatarVariant string `json:"avatarVariant"`
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AvatarPalette string `json:"avatarPalette"`
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AvatarPhoto string `json:"avatarPhoto,omitempty"`
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}
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func (s *Server) handleWeeklyLeaderboard(w http.ResponseWriter, r *http.Request) {
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u := currentUser(r)
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key := "lb:" + service.ISOWeek(time.Now())
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entries := make([]lbEntry, 0, 20)
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type scored struct {
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userID int64
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xp float64
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}
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var scoredList []scored
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if s.redis != nil {
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z, err := s.redis.ZRevRangeWithScores(context.Background(), key, 0, 19).Result()
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if err == nil {
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for _, member := range z {
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id, _ := strconv.ParseInt(member.Member.(string), 10, 64)
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scoredList = append(scoredList, scored{userID: id, xp: member.Score})
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}
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}
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}
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// fallback to DB if redis empty (e.g. dev bootstrap)
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if len(scoredList) == 0 {
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rows, err := s.store.Pool().Query(context.Background(), `
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SELECT user_id, xp FROM weekly_leaderboard WHERE week=$1 ORDER BY xp DESC LIMIT 20`,
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service.ISOWeek(time.Now()))
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if err == nil {
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for rows.Next() {
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var id int64
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var xp int
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if rows.Scan(&id, &xp) == nil {
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scoredList = append(scoredList, scored{userID: id, xp: float64(xp)})
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}
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}
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rows.Close()
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}
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}
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for i, sc := range scoredList {
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usr, err := s.store.GetUserByID(context.Background(), sc.userID)
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if err != nil {
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continue
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}
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entries = append(entries, lbEntry{
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UserID: sc.userID, Name: usr.Name, Email: usr.Email, XP: sc.xp, Rank: i + 1,
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AvatarVariant: usr.AvatarVariant, AvatarPalette: usr.AvatarPalette, AvatarPhoto: usr.AvatarPhoto,
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})
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}
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// my position
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myRank := -1
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var myXP float64
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if s.redis != nil {
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rank, err := s.redis.ZRevRank(context.Background(), key, strconv.FormatInt(u.ID, 10)).Result()
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if err == nil {
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myRank = int(rank) + 1
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}
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score, err := s.redis.ZScore(context.Background(), key, strconv.FormatInt(u.ID, 10)).Result()
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if err == nil {
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myXP = score
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}
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}
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if entries == nil {
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entries = []lbEntry{}
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}
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writeJSON(w, http.StatusOK, map[string]any{
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"week": service.ISOWeek(time.Now()),
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"entries": entries,
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"me": map[string]any{"rank": myRank, "xp": myXP, "streak": u.StreakCurrent},
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})
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}
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