General Handling of Charge Status: Who started, why did it stop, how to start?

[stefannnnnn]

Hello,
I have some understanding issues with the different API Keys and how to use and combine them to achieve the wanted behaviour.
Maybe you can hint me on the correct use of frc,trx,alw and so on.

So, what do I want to achieve? In general I would like to achieve 3 things in parallel:

• PV Surplus charging (not using the go-e logic, because my energymeter readings are to slow)
• Nex Trip mode
• "forced" charging (Activated via app, if I want manual control of the charging process)

However, there are some things I need to do so:

1. I need to know who started charging (forced charging triggered from the app, should not be overwriten by pv charging) (and change that information)
2. I need to know why charging stopped: When I'm in the use-case of surplus charging, I regularly need to stop. How can I distinguish this from battery is full?

So my understanding is, that I need to use frc in general to start/stop charging. Once after connecting the car someone has to authenicate (what does the app send here?), Surplus Charging could identify with a different/reserved RFID number, which I could use to validate who started charging.
But then, when I stop charging because of low solar energy, I can not determine if it stopped because it is full, or someone stopped.
Addittionally, once an authentification is made, it seems that I cannot reset that, other then replugging the car.
So if I charge some power for next trip mode or by forced charging, and then surplus charging could take over, I can not, because I do not know whether the forced charging (or next trip) is succesfully finished.

Can you help me on track?