Sum Weekdays to a starting date

Hello everyone!

I need a little help to get a solution for my BI.

I have a table that contains 4 columns as shown in the image below: 

The first column identify the row's type: 1 or 0.
The second is a starting date (in brazilian date format).
The third is the number of days to be added to the starting date. 
The last one is the end date (starting date + number of days to be added)

Conditions:
If the row's type (first column) is 1 than it must add only weekdays to the starting date.
If the row's type (first column) is 0 than it must add all weekdays to the starting date.

I already have a calendar table: 

Date: It shows all dates since 2016.
DiasUteis: It shows 1 if it's a weekday and 0 if it's weekend. 
Contagem Acumulada de Dias Uteis: It counts the accumulated number of weekdays (without any distinction, so it will be counting for the whole table).

I tried a lot of solutions but none of them seems to work... Can anyone please help me?

Regards!