[Maxful]

Hi, I have a question which is regarding "決める". I would like to know which of the following sentence best describe "I am deciding whether to buy this shirt."?


このシャツを買うどうか決める。

このシャツを買うどうか決めている。


Personally, I feel that the latter sentence is suitable compared to the former - since the former sounds to me like "I will decide weather to buy this shirt".