31 lines
857 B
Nim
31 lines
857 B
Nim
import ../statemachine
|
|
import ./errorhandling
|
|
import ./finished
|
|
import ./failed
|
|
|
|
type PurchaseStarted* = ref object of ErrorHandlingState
|
|
|
|
method `$`*(state: PurchaseStarted): string =
|
|
"started"
|
|
|
|
method run*(state: PurchaseStarted, machine: Machine): Future[?State] {.async.} =
|
|
let purchase = Purchase(machine)
|
|
|
|
let clock = purchase.clock
|
|
let market = purchase.market
|
|
|
|
let failed = newFuture[void]()
|
|
proc callback(_: RequestId) =
|
|
failed.complete()
|
|
let subscription = await market.subscribeRequestFailed(purchase.requestId, callback)
|
|
|
|
let ended = clock.waitUntil(await market.getRequestEnd(purchase.requestId))
|
|
let fut = await one(ended, failed)
|
|
await subscription.unsubscribe()
|
|
if fut.id == failed.id:
|
|
ended.cancel()
|
|
return some State(PurchaseFailed())
|
|
else:
|
|
failed.cancel()
|
|
return some State(PurchaseFinished())
|