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https://github.com/codex-storage/nim-codex.git
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51 lines
1.5 KiB
Nim
51 lines
1.5 KiB
Nim
import pkg/upraises
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import ../../market
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import ../statemachine
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import ./filled
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import ./errored
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import ./cancelled
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import ./failed
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type
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SaleFilling* = ref object of SaleState
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proof*: seq[byte]
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SaleFillingError* = object of CatchableError
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method `$`*(state: SaleFilling): string = "SaleFilling"
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method onCancelled*(state: SaleFilling, request: StorageRequest) {.async.} =
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await state.switchAsync(SaleCancelled())
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method onFailed*(state: SaleFilling, request: StorageRequest) {.async.} =
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await state.switchAsync(SaleFailed())
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method enterAsync(state: SaleFilling) {.async.} =
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without agent =? (state.context as SalesAgent):
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raiseAssert "invalid state"
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var subscription: market.Subscription
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proc onSlotFilled(requestId: RequestId,
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slotIndex: UInt256) {.async.} =
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await subscription.unsubscribe()
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await state.switchAsync(SaleFilled())
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try:
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let market = agent.sales.market
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without slotIndex =? agent.slotIndex:
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raiseAssert "no slot selected"
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subscription = await market.subscribeSlotFilled(agent.requestId,
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slotIndex,
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onSlotFilled)
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await market.fillSlot(agent.requestId, slotIndex, state.proof)
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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(SaleFillingError, "unknown sale filling error", e)
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await state.switchAsync(SaleErrored(error: error))
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