nim-codex/codex/sales/states/downloading.nim

43 lines
1.2 KiB
Nim

import ../../market
import ../salesagent
import ../statemachine
import ./errorhandling
import ./cancelled
import ./failed
import ./filled
import ./proving
type
SaleDownloading* = ref object of ErrorHandlingState
failedSubscription: ?market.Subscription
hasCancelled: ?Future[void]
method `$`*(state: SaleDownloading): string = "SaleDownloading"
method onCancelled*(state: SaleDownloading, request: StorageRequest): ?State =
return some State(SaleCancelled())
method onFailed*(state: SaleDownloading, request: StorageRequest): ?State =
return some State(SaleFailed())
method onSlotFilled*(state: SaleDownloading, requestId: RequestId,
slotIndex: UInt256): ?State =
return some State(SaleFilled())
method run*(state: SaleDownloading, machine: Machine): Future[?State] {.async.} =
let agent = SalesAgent(machine)
let data = agent.data
let context = agent.context
await agent.retrieveRequest()
await agent.subscribe()
without onStore =? context.onStore:
raiseAssert "onStore callback not set"
without request =? data.request:
raiseAssert "no sale request"
await onStore(request, data.slotIndex, data.availability)
return some State(SaleProving())