Order Lifecycle in Open API

Hi everyone,

I manage to create a cTrade Java client so that I can copy orders from JForex to CTrader.

So far I'm struggling with the order lifecycle. I look at the .NET example in github but still can't find clear rule to detect the current state of an order.

I understand that from an Order -→ we can have 1 or many Positions and we can also have one or many deals.

After submitting an order, I'll receive many ProtoOAExecutionEvent events.

I would like clear rules on how to translate an ProtoOAExecutionEvent event into the correct Order State:

• Order Rejected
  • How do I find the reason for rejection e.g not enough fund?
• Order Open
• Order Cancelled
  • How do I find the Order cancelled reason?
• Order Filled
• Order Filled Partial
• Order Closed
  • How do I find if it's closed by Take Profit, closed by Stop Loss or any other reason like not enough margin?
• Order Updated
  • SL, TP or Entry change…

Finally when an Order is closed, which object should use to find profitloss information? is it Deal, Position or both?

Thank you in advance for your help.

Serge.