F-35 or SU-57, what India should do

So what is generic opinion on President Trump emphasizing weapon sales worth billions to India that is likely to include offering F-35 fighter jet to India down the line. Personally I think it is great offer on the surface as this will bring IAF to technical forefront with state of the art 5th gen technologies. But any US sales will come with lot of strings attached with limited to none technology transfer plus seeking get go from them on when and where to use the jets or face actions if it does not align with American interests. Another option is Russia offering to manufacture SU-57 in India with technology transfer. But Su-57 is a bit inferior as not much numbers are made yet and some experts even question it's steath characteristics. With AMCA at least a decade away and with HALs less than stellar record of timely delivery AMCA could be even further along. Further, if rumours are to be believed Pakistan could be inching to procure few 5th gen fighters from China. With all these things at play what should India do?