(1) The court shall sentence a defendant found guilty but mentally ill at the time of the offense to the local jail or to the Department of Corrections in the same manner as a defendant found guilty. If the defendant is found guilty but mentally ill, treatment shall be provided the defendant until the treating professional determines that the treatment is no longer necessary or until expiration of his sentence, whichever occurs first.
(2) Treatment shall be a condition of probation, shock probation, conditional discharge, parole, or conditional release so long as the defendant requires treatment for his mental illness in the opinion of his treating professional.