64 lines
2.2 KiB
Nim
64 lines
2.2 KiB
Nim
import pkg/questionable/results
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import ../../clock
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import ../../logutils
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import ../statemachine
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import ../salesagent
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import ./errorhandling
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import ./filling
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import ./cancelled
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import ./errored
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import ./failed
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logScope:
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topics = "marketplace sales initial-proving"
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type
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SaleInitialProving* = ref object of ErrorHandlingState
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method `$`*(state: SaleInitialProving): string = "SaleInitialProving"
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method onCancelled*(state: SaleInitialProving, request: StorageRequest): ?State =
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return some State(SaleCancelled())
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method onFailed*(state: SaleInitialProving, request: StorageRequest): ?State =
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return some State(SaleFailed())
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proc waitUntilNextPeriod(clock: Clock, periodicity: Periodicity) {.async.} =
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trace "Waiting until next period"
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let period = periodicity.periodOf(clock.now().u256)
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let periodEnd = periodicity.periodEnd(period).truncate(int64)
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await clock.waitUntil(periodEnd + 1)
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proc waitForStableChallenge(market: Market, clock: Clock, slotId: SlotId) {.async.} =
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let periodicity = await market.periodicity()
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let downtime = await market.proofDowntime()
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await clock.waitUntilNextPeriod(periodicity)
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while (await market.getPointer(slotId)) > (256 - downtime):
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await clock.waitUntilNextPeriod(periodicity)
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method run*(state: SaleInitialProving, machine: Machine): Future[?State] {.async.} =
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let data = SalesAgent(machine).data
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let context = SalesAgent(machine).context
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let market = context.market
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let clock = context.clock
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without request =? data.request:
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raiseAssert "no sale request"
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without onProve =? context.onProve:
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raiseAssert "onProve callback not set"
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debug "Waiting for a proof challenge that is valid for the entire period"
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let slot = Slot(request: request, slotIndex: data.slotIndex)
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await waitForStableChallenge(market, clock, slot.id)
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debug "Generating initial proof", requestId = data.requestId
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let challenge = await context.market.getChallenge(slot.id)
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without proof =? (await onProve(slot, challenge)), err:
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error "Failed to generate initial proof", error = err.msg
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return some State(SaleErrored(error: err))
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debug "Finished proof calculation", requestId = data.requestId
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return some State(SaleFilling(proof: proof))
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