nim-codex/codex/purchasing/states/started.nim

40 lines
1.1 KiB
Nim

import pkg/metrics
import pkg/chronicles
import ../statemachine
import ./errorhandling
import ./finished
import ./failed
declareCounter(codex_purchases_started, "codex purchases started")
logScope:
topics = "marketplace purchases started"
type PurchaseStarted* = ref object of ErrorHandlingState
method `$`*(state: PurchaseStarted): string =
"started"
method run*(state: PurchaseStarted, machine: Machine): Future[?State] {.async.} =
codex_purchases_started.inc()
let purchase = Purchase(machine)
let clock = purchase.clock
let market = purchase.market
info "All required slots filled, purchase started", requestId = purchase.requestId
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())