/
leaderboard.go
64 lines (51 loc) · 1.47 KB
/
leaderboard.go
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package game
import (
"context"
"fmt"
. "github.com/fnatte/pizza-tribes/internal/game/models"
"github.com/fnatte/pizza-tribes/internal/game/redis"
)
type LeaderboardService struct {
r redis.RedisClient
}
func NewLeaderboardService(r redis.RedisClient) *LeaderboardService {
return &LeaderboardService{r: r}
}
func (s *LeaderboardService) GetRankByUserId(ctx context.Context, userId string) (int64, error) {
rank, err := s.r.ZRevRank(ctx, "leaderboard", userId).Result()
if err != nil {
return 0, fmt.Errorf("failed to get user leaderboard rank: %w", err)
}
return rank + 1, nil
}
func (s *LeaderboardService) Get(ctx context.Context, skip int) (*Leaderboard, error) {
res, err := s.r.ZRevRangeWithScores(ctx, "leaderboard", int64(skip), int64(skip)+20).Result()
if err != nil {
return nil, err
}
board := &Leaderboard{
Skip: int32(skip),
Rows: make([]*Leaderboard_Row, len(res)),
}
for i, row := range res {
userId := row.Member.(string)
userKey := fmt.Sprintf("user:%s", userId)
username, err := s.r.HGet(ctx, userKey, "username").Result()
if err != nil {
return nil, fmt.Errorf("failed to get username: %w", err)
}
board.Rows[i] = &Leaderboard_Row{
UserId: userId,
Coins: int64(row.Score),
Username: username,
}
}
return board, nil
}
func (s *LeaderboardService) UpdateUser(ctx context.Context, userId string, coins int64) error {
s.r.ZAdd(ctx, "leaderboard", &redis.Z{
Score: float64(coins),
Member: userId,
})
return nil
}