(a) Persons upon whom served. The summons and a copy of the complaint shall be served on the juvenile; if the juvenile's whereabouts are known, any person having legal custody of the juvenile; the person with whom the juvenile is residing; and any other person designated by the county or district attorney.
(b) Form. The summons shall be issued by the clerk, dated the day it is issued, contain the name of the court, the caption of the case and be in a form that complies with the code.