How to implement an ideia with drone



I have a web app for industry that allow companies to management their logistic and inventory with tablet , phones with bar code bluetooth reader.

What I want to do now is integrate a drone with this application. For example what I want to do is map a warehouse and have the drone walk autonomously through the aisles of the warehouse and go “picking” the references via rfid or bar code reader.

I don’t know more about drones so I’m trying to get help from people like you that know.

I think that using an comercial drone is not the better solutions because we need to make changes.
Probably I can run the web app with an raspberry pi or an arduino.
But when I can learn about that?
Which is the best solution to do that?
What kind of tools can I use?

I appreciate a lot if anyone can guide me in this project.

Thank you