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https://github.com/codex-storage/nim-codex.git
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49 lines
1.4 KiB
Nim
49 lines
1.4 KiB
Nim
import std/sequtils
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import ./cancelled
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import ./failed
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import ./proving
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import ./errored
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import ../salesagent
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import ../statemachine
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import ../../market
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type
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SaleDownloading* = ref object of SaleState
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failedSubscription: ?market.Subscription
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hasCancelled: ?Future[void]
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SaleDownloadingError* = object of SaleError
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method `$`*(state: SaleDownloading): string = "SaleDownloading"
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method onCancelled*(state: SaleDownloading, request: StorageRequest) {.async.} =
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await state.switchAsync(SaleCancelled())
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method onFailed*(state: SaleDownloading, request: StorageRequest) {.async.} =
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await state.switchAsync(SaleFailed())
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method enterAsync(state: SaleDownloading) {.async.} =
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without agent =? (state.context as SalesAgent):
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raiseAssert "invalid state"
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try:
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without onStore =? agent.sales.onStore:
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raiseAssert "onStore callback not set"
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without slotIndex =? agent.slotIndex:
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raiseAssert "no slot selected"
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without request =? agent.request:
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raiseAssert "no sale request"
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await onStore(request, slotIndex, agent.availability)
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await state.switchAsync(SaleProving())
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except CancelledError:
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discard
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except CatchableError as e:
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let error = newException(SaleDownloadingError,
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"unknown sale downloading error",
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e)
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await state.switchAsync(SaleErrored(error: error))
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