If someone is on probation and gets charged with aggravated assault with a deadly weapon how many years could they get?

TEXAS PENAL CODE § 22.02. AGGRAVATED ASSAULT. (a) A person commits an offense if the person commits assault as defined in § 22.01 and the person: (1) causes serious bodily injury to another, including the person's spouse; or (2) uses or exhibits a deadly weapon during the commission of the assault. (b) An offense under this section is a felony of the second degree, except that the offense is a felony of the first degree if: (1) the actor uses a deadly weapon during the commission of the assault and causes serious bodily injury to a person whose relationship to or association with the defendant is described by Section 71.0021(b), 71.003, or 71.005, Family Code Depending on how this person is charged he could be facing 5-99 years on a first degree felony aggravated assault or 2-20 on a second degree felony aggravated assault. He also has the probation revocation to be concerned about. He needs an experienced criminal defense attorney asap.