85 lines
2.6 KiB
Nim
85 lines
2.6 KiB
Nim
import std/sequtils
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import std/heapqueue
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import pkg/dagger/market
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type
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MockMarket* = ref object of Market
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requested*: seq[StorageRequest]
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offered*: seq[StorageOffer]
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selected*: seq[array[32, byte]]
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subscriptions: Subscriptions
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time: UInt256
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waiting: HeapQueue[Expiry]
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Subscriptions = object
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onRequest: seq[RequestSubscription]
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onOffer: seq[OfferSubscription]
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RequestSubscription* = ref object of Subscription
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market: MockMarket
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callback: OnRequest
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OfferSubscription* = ref object of Subscription
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market: MockMarket
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requestId: array[32, byte]
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callback: OnOffer
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Expiry = object
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future: Future[void]
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expiry: UInt256
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method requestStorage*(market: MockMarket, request: StorageRequest) {.async.} =
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market.requested.add(request)
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for subscription in market.subscriptions.onRequest:
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subscription.callback(request)
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method offerStorage*(market: MockMarket, offer: StorageOffer) {.async.} =
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market.offered.add(offer)
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for subscription in market.subscriptions.onOffer:
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if subscription.requestId == offer.requestId:
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subscription.callback(offer)
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method selectOffer*(market: MockMarket, id: array[32, byte]) {.async.} =
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market.selected.add(id)
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method subscribeRequests*(market: MockMarket,
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callback: OnRequest):
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Future[Subscription] {.async.} =
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let subscription = RequestSubscription(
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market: market,
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callback: callback
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)
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market.subscriptions.onRequest.add(subscription)
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return subscription
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method subscribeOffers*(market: MockMarket,
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requestId: array[32, byte],
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callback: OnOffer):
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Future[Subscription] {.async.} =
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let subscription = OfferSubscription(
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market: market,
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requestId: requestId,
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callback: callback
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)
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market.subscriptions.onOffer.add(subscription)
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return subscription
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method unsubscribe*(subscription: RequestSubscription) {.async.} =
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subscription.market.subscriptions.onRequest.keepItIf(it != subscription)
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method unsubscribe*(subscription: OfferSubscription) {.async.} =
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subscription.market.subscriptions.onOffer.keepItIf(it != subscription)
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func `<`(a, b: Expiry): bool =
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a.expiry < b.expiry
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method waitUntil*(market: MockMarket, expiry: UInt256): Future[void] =
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let future = Future[void]()
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if expiry > market.time:
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market.waiting.push(Expiry(future: future, expiry: expiry))
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else:
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future.complete()
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future
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proc advanceTimeTo*(market: MockMarket, time: UInt256) =
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doAssert(time >= market.time)
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market.time = time
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while market.waiting.len > 0 and market.waiting[0].expiry <= time:
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market.waiting.pop().future.complete()
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