Add admin password reset functionality for users and customers

pkg/ratelimit/limit.go

@@ -0,0 +1,35 @@
+package ratelimit
+
+import (
+	"context"
+	"time"
+
+	"tm/pkg/redis"
+
+	redisv9 "github.com/redis/go-redis/v9"
+)
+
+// Allow returns whether the request is within limit for the given key.
+func Allow(ctx context.Context, client redis.Client, key string, limit int64, window time.Duration) (bool, error) {
+	if client == nil {
+		return true, nil
+	}
+
+	count, err := client.Incr(ctx, key)
+	if err != nil {
+		return false, err
+	}
+
+	if count == 1 {
+		if err := client.Expire(ctx, key, window); err != nil {
+			return false, err
+		}
+	}
+
+	return count <= limit, nil
+}
+
+// IsNotFound reports whether err indicates a missing Redis key.
+func IsNotFound(err error) bool {
+	return err == redisv9.Nil
+}