OFF LINE gep json shape

Hello Power BI experts

I would like to achieve the following within PowerBI space, I don't think all of it is just the functionality of the product itself however from a business user perspective doing coding and spending time on designing is not an option. 

Use Case:

A sales executive would like to look at his region (ISO Country code or name) i.e.(USA, UK, CAN) sales in Power BI dashboard or app and if necessary drill down to state/province (must have 3 drill down levels)

Flow:

1- Executive enters any of the ISO country code e.g(spain)

2- Power BI app shows the sales data for that country in a country map shape

3- Executive can download or embed that app to his/her presentation file

Questions:

1- What methods can be used to obtain GeoJSON shape file that would adjust based on the input country code

2- Will the method used suggested from #1 provide the drill down capability

Thanks

Jaids