Combo weight and price

Hi nice plugin very usefull !! ….

I’m working and wiriting a new plugin for the woocomerce cart
i would like to know . how programmatically i can get
the bundle total price ( % or fixed ) and the total bundle weight
for shipping calculations.
I need it in cart object when i calculate every lines

my function works good with all products ( variable too), but i got empty value
when try to get price and weight of the bundle prod

have to loop inside the bundle a sum all the values ??

Hope you can help me sorry for disturb !
Thx