Deal with order unavailability in the 10101 app

[klochowicz]

Ideally we should:

• have an status indicator whether the coordinator / orderbook is online
• react accordingly if there's no order
• reset all the values (best price, fees etc) when it's offline to prevent stale values.
• if there's an open position, adjust the PnL and other values depending on current price / orders (e.g. show N/A).

Follow-up from #859 - where we can finally express lack of values from coordinator, but we still don't clear them when the node is offline.

[klochowicz]

@holzeis I've included this ticket into the iteration as it clearly stems from removing the dummy price values one (and there's nothing to grab there anymore).

[klochowicz]

this task has exploded considerably, it turns out that there's no place is the system where we prune the expired orders.
I'm currently working on a PoC that will allow that.

[bonomat]

this task has exploded considerably, it turns out that there's no place is the system where we prune the expired orders. I'm currently working on a PoC that will allow that.

Depends on what you mean with this. The orderbook is not considering outdated orders:

10101/coordinator/src/orderbook/routes.rs

Lines 142 to 148 in 238ac9d

	let all_non_expired_orders = orders::all_by_direction_and_type(
	&mut conn,
	order.direction.opposite(),
	OrderType::Limit,
	false,
	true,
	)

[bonomat]

this task has exploded considerably,

Please ping and discuss (with anyone) before you fall down the rabbit hole of refactoring the universe and everything.

[klochowicz]

this task has exploded considerably, it turns out that there's no place is the system where we prune the expired orders. I'm currently working on a PoC that will allow that.

I was referring to the task, as it assumed that everything was in place for the task to be done - the backend was noticing / cleaning the orders if the coordinator or maker went offline.

Depends on what you mean with this. The orderbook is not considering outdated orders:

10101/coordinator/src/orderbook/routes.rs

Lines 142 to 148 in 238ac9d

	let all_non_expired_orders = orders::all_by_direction_and_type(
	&mut conn,
	order.direction.opposite(),
	OrderType::Limit,
	false,
	true,
	)

that only happens in context of a POST request. if the maker is not online, this is not filtered.

[klochowicz]

this task has exploded considerably,

Please ping and discuss (with anyone) before you fall down the rabbit hole of refactoring the universe and everything.

I have in fact reached out on matrix first before I flagged this.

[klochowicz]

as for the status: when there's no active active orders (e.g. maker / coordinator ar down), we grey out the buy/sell buttons.

It's not best indicator, but it is an indicator. I would love if we started an error feed for the subscribers, so we could push them to the app.