You have been a tremendous help to me and I would be very happy if I can return the favor in the future.
Let's consider that someone has helped me in the past and I am talking to this person and now I am telling them that "I will be happy if I can help you in the future". Does the above written sentence convey the same meaning and is it grammatically, especially when considering conditional sentences, correct?
I checked conditional sentence type 2 but that meaning is not what I want to convey by this sentence.
Conditional type II:
"You have been a tremendous help to me and I would be very happy if I could return the favor."
=> it means that I won't be able to return the favor. But that is not what I am trying to say here.