sentence construction - Uses of "have you had" and "did you have"

When to use have you had and did you have in sentence?

e.g.

1) To ask some if he had his lunch or not?

Have you had your lunch?

Or

Did you have your lunch?

2) To ask some if he faced this situation in past or not?

Have you had this situation when you were doing this?

Or

Did you have this situation when you were doing this?