420 lines
13 KiB
Nim
420 lines
13 KiB
Nim
import std/sequtils
|
|
import std/sugar
|
|
import std/tables
|
|
import pkg/questionable
|
|
import pkg/stint
|
|
import pkg/chronicles
|
|
import pkg/datastore
|
|
import ./market
|
|
import ./clock
|
|
import ./stores
|
|
import ./contracts/requests
|
|
import ./contracts/marketplace
|
|
import ./sales/salescontext
|
|
import ./sales/salesagent
|
|
import ./sales/statemachine
|
|
import ./sales/slotqueue
|
|
import ./sales/states/preparing
|
|
import ./sales/states/unknown
|
|
import ./utils/then
|
|
import ./utils/trackedfutures
|
|
|
|
## Sales holds a list of available storage that it may sell.
|
|
##
|
|
## When storage is requested on the market that matches availability, the Sales
|
|
## object will instruct the Codex node to persist the requested data. Once the
|
|
## data has been persisted, it uploads a proof of storage to the market in an
|
|
## attempt to win a storage contract.
|
|
##
|
|
## Node Sales Market
|
|
## | | |
|
|
## | -- add availability --> | |
|
|
## | | <-- storage request --- |
|
|
## | <----- store data ------ | |
|
|
## | -----------------------> | |
|
|
## | | |
|
|
## | <----- prove data ---- | |
|
|
## | -----------------------> | |
|
|
## | | ---- storage proof ---> |
|
|
|
|
export stint
|
|
export reservations
|
|
|
|
logScope:
|
|
topics = "sales marketplace"
|
|
|
|
type
|
|
Sales* = ref object
|
|
context*: SalesContext
|
|
agents*: seq[SalesAgent]
|
|
running: bool
|
|
subscriptions: seq[market.Subscription]
|
|
trackedFutures: TrackedFutures
|
|
|
|
proc `onStore=`*(sales: Sales, onStore: OnStore) =
|
|
sales.context.onStore = some onStore
|
|
|
|
proc `onClear=`*(sales: Sales, onClear: OnClear) =
|
|
sales.context.onClear = some onClear
|
|
|
|
proc `onSale=`*(sales: Sales, callback: OnSale) =
|
|
sales.context.onSale = some callback
|
|
|
|
proc `onProve=`*(sales: Sales, callback: OnProve) =
|
|
sales.context.onProve = some callback
|
|
|
|
proc onStore*(sales: Sales): ?OnStore = sales.context.onStore
|
|
|
|
proc onClear*(sales: Sales): ?OnClear = sales.context.onClear
|
|
|
|
proc onSale*(sales: Sales): ?OnSale = sales.context.onSale
|
|
|
|
proc onProve*(sales: Sales): ?OnProve = sales.context.onProve
|
|
|
|
func new*(_: type Sales,
|
|
market: Market,
|
|
clock: Clock,
|
|
repo: RepoStore): Sales =
|
|
Sales.new(market, clock, repo, 0)
|
|
|
|
func new*(_: type Sales,
|
|
market: Market,
|
|
clock: Clock,
|
|
repo: RepoStore,
|
|
simulateProofFailures: int): Sales =
|
|
|
|
let reservations = Reservations.new(repo)
|
|
Sales(
|
|
context: SalesContext(
|
|
market: market,
|
|
clock: clock,
|
|
reservations: reservations,
|
|
slotQueue: SlotQueue.new(reservations),
|
|
simulateProofFailures: simulateProofFailures
|
|
),
|
|
trackedFutures: TrackedFutures.new(),
|
|
subscriptions: @[]
|
|
)
|
|
|
|
proc remove(sales: Sales, agent: SalesAgent) {.async.} =
|
|
await agent.stop()
|
|
if sales.running:
|
|
sales.agents.keepItIf(it != agent)
|
|
|
|
proc cleanUp(sales: Sales,
|
|
agent: SalesAgent,
|
|
processing: Future[void]) {.async.} =
|
|
await sales.remove(agent)
|
|
# signal back to the slot queue to cycle a worker
|
|
if not processing.isNil and not processing.finished():
|
|
processing.complete()
|
|
|
|
proc processSlot(sales: Sales, item: SlotQueueItem, done: Future[void]) =
|
|
debug "processing slot from queue", requestId = $item.requestId,
|
|
slot = item.slotIndex
|
|
|
|
let agent = newSalesAgent(
|
|
sales.context,
|
|
item.requestId,
|
|
item.slotIndex.u256,
|
|
none StorageRequest
|
|
)
|
|
|
|
agent.context.onCleanUp = proc {.async.} =
|
|
await sales.cleanUp(agent, done)
|
|
|
|
agent.start(SalePreparing())
|
|
sales.agents.add agent
|
|
|
|
proc mySlots*(sales: Sales): Future[seq[Slot]] {.async.} =
|
|
let market = sales.context.market
|
|
let slotIds = await market.mySlots()
|
|
var slots: seq[Slot] = @[]
|
|
|
|
info "Loading active slots", slotsCount = len(slots)
|
|
for slotId in slotIds:
|
|
if slot =? (await market.getActiveSlot(slotId)):
|
|
slots.add slot
|
|
|
|
return slots
|
|
|
|
proc load*(sales: Sales) {.async.} =
|
|
let slots = await sales.mySlots()
|
|
|
|
for slot in slots:
|
|
let agent = newSalesAgent(
|
|
sales.context,
|
|
slot.request.id,
|
|
slot.slotIndex,
|
|
some slot.request)
|
|
|
|
agent.context.onCleanUp = proc {.async.} = await sales.remove(agent)
|
|
|
|
agent.start(SaleUnknown())
|
|
sales.agents.add agent
|
|
|
|
proc onReservationAdded(sales: Sales, availability: Availability) {.async.} =
|
|
## Query last 256 blocks for new requests, adding them to the queue. `push`
|
|
## checks for availability before adding to the queue. If processed, the
|
|
## sales agent will check if the slot is free.
|
|
let context = sales.context
|
|
let market = context.market
|
|
let queue = context.slotQueue
|
|
|
|
logScope:
|
|
topics = "sales onReservationAdded callback"
|
|
|
|
trace "reservation added, querying past storage requests to add to queue"
|
|
|
|
try:
|
|
let events = await market.queryPastStorageRequests(256)
|
|
let requests = events.map(event =>
|
|
SlotQueueItem.init(event.requestId, event.ask, event.expiry)
|
|
)
|
|
|
|
trace "found past storage requested events to add to queue",
|
|
events = events.len
|
|
|
|
for slots in requests:
|
|
for slot in slots:
|
|
if err =? (await queue.push(slot)).errorOption:
|
|
# continue on error
|
|
if err of QueueNotRunningError:
|
|
warn "cannot push items to queue, queue is not running"
|
|
elif err of NoMatchingAvailabilityError:
|
|
info "slot in queue had no matching availabilities, ignoring"
|
|
elif err of SlotsOutOfRangeError:
|
|
warn "Too many slots, cannot add to queue"
|
|
elif err of SlotQueueItemExistsError:
|
|
trace "item already exists, ignoring"
|
|
discard
|
|
else: raise err
|
|
|
|
except CatchableError as e:
|
|
warn "Error adding request to SlotQueue", error = e.msg
|
|
discard
|
|
|
|
proc onStorageRequested(sales: Sales,
|
|
requestId: RequestId,
|
|
ask: StorageAsk,
|
|
expiry: UInt256) =
|
|
|
|
logScope:
|
|
topics = "sales onStorageRequested"
|
|
requestId
|
|
slots = ask.slots
|
|
expiry
|
|
|
|
let slotQueue = sales.context.slotQueue
|
|
|
|
trace "storage requested, adding slots to queue"
|
|
|
|
without items =? SlotQueueItem.init(requestId, ask, expiry).catch, err:
|
|
if err of SlotsOutOfRangeError:
|
|
warn "Too many slots, cannot add to queue"
|
|
else:
|
|
warn "Failed to create slot queue items from request", error = err.msg
|
|
|
|
for item in items:
|
|
# continue on failure
|
|
slotQueue.push(item)
|
|
.track(sales)
|
|
.catch(proc(err: ref CatchableError) =
|
|
if err of NoMatchingAvailabilityError:
|
|
info "slot in queue had no matching availabilities, ignoring"
|
|
elif err of SlotQueueItemExistsError:
|
|
error "Failed to push item to queue becaue it already exists"
|
|
elif err of QueueNotRunningError:
|
|
warn "Failed to push item to queue becaue queue is not running"
|
|
else:
|
|
warn "Error adding request to SlotQueue", error = err.msg
|
|
)
|
|
|
|
proc onSlotFreed(sales: Sales,
|
|
requestId: RequestId,
|
|
slotIndex: UInt256) =
|
|
|
|
logScope:
|
|
topics = "sales onSlotFreed"
|
|
requestId
|
|
slotIndex
|
|
|
|
trace "slot freed, adding to queue"
|
|
|
|
proc addSlotToQueue() {.async.} =
|
|
let context = sales.context
|
|
let market = context.market
|
|
let queue = context.slotQueue
|
|
|
|
# first attempt to populate request using existing slot metadata in queue
|
|
without var found =? queue.populateItem(requestId,
|
|
slotIndex.truncate(uint16)):
|
|
trace "no existing request metadata, getting request info from contract"
|
|
# if there's no existing slot for that request, retrieve the request
|
|
# from the contract.
|
|
without request =? await market.getRequest(requestId):
|
|
error "unknown request in contract"
|
|
return
|
|
|
|
found = SlotQueueItem.init(request, slotIndex.truncate(uint16))
|
|
|
|
if err =? (await queue.push(found)).errorOption:
|
|
raise err
|
|
|
|
addSlotToQueue()
|
|
.track(sales)
|
|
.catch(proc(err: ref CatchableError) =
|
|
if err of NoMatchingAvailabilityError:
|
|
info "slot in queue had no matching availabilities, ignoring"
|
|
elif err of SlotQueueItemExistsError:
|
|
error "Failed to push item to queue becaue it already exists"
|
|
elif err of QueueNotRunningError:
|
|
warn "Failed to push item to queue becaue queue is not running"
|
|
else:
|
|
warn "Error adding request to SlotQueue", error = err.msg
|
|
)
|
|
|
|
proc subscribeRequested(sales: Sales) {.async.} =
|
|
let context = sales.context
|
|
let market = context.market
|
|
|
|
proc onStorageRequested(requestId: RequestId,
|
|
ask: StorageAsk,
|
|
expiry: UInt256) =
|
|
sales.onStorageRequested(requestId, ask, expiry)
|
|
|
|
try:
|
|
let sub = await market.subscribeRequests(onStorageRequested)
|
|
sales.subscriptions.add(sub)
|
|
except CatchableError as e:
|
|
error "Unable to subscribe to storage request events", msg = e.msg
|
|
|
|
proc subscribeCancellation(sales: Sales) {.async.} =
|
|
let context = sales.context
|
|
let market = context.market
|
|
let queue = context.slotQueue
|
|
|
|
proc onCancelled(requestId: RequestId) =
|
|
trace "request cancelled, removing all request slots from queue"
|
|
queue.delete(requestId)
|
|
|
|
try:
|
|
let sub = await market.subscribeRequestCancelled(onCancelled)
|
|
sales.subscriptions.add(sub)
|
|
except CatchableError as e:
|
|
error "Unable to subscribe to cancellation events", msg = e.msg
|
|
|
|
proc subscribeFulfilled*(sales: Sales) {.async.} =
|
|
let context = sales.context
|
|
let market = context.market
|
|
let queue = context.slotQueue
|
|
|
|
proc onFulfilled(requestId: RequestId) =
|
|
trace "request fulfilled, removing all request slots from queue"
|
|
queue.delete(requestId)
|
|
|
|
for agent in sales.agents:
|
|
agent.onFulfilled(requestId)
|
|
|
|
try:
|
|
let sub = await market.subscribeFulfillment(onFulfilled)
|
|
sales.subscriptions.add(sub)
|
|
except CatchableError as e:
|
|
error "Unable to subscribe to storage fulfilled events", msg = e.msg
|
|
|
|
proc subscribeFailure(sales: Sales) {.async.} =
|
|
let context = sales.context
|
|
let market = context.market
|
|
let queue = context.slotQueue
|
|
|
|
proc onFailed(requestId: RequestId) =
|
|
trace "request failed, removing all request slots from queue"
|
|
queue.delete(requestId)
|
|
|
|
for agent in sales.agents:
|
|
agent.onFailed(requestId)
|
|
|
|
try:
|
|
let sub = await market.subscribeRequestFailed(onFailed)
|
|
sales.subscriptions.add(sub)
|
|
except CatchableError as e:
|
|
error "Unable to subscribe to storage failure events", msg = e.msg
|
|
|
|
proc subscribeSlotFilled(sales: Sales) {.async.} =
|
|
let context = sales.context
|
|
let market = context.market
|
|
let queue = context.slotQueue
|
|
|
|
proc onSlotFilled(requestId: RequestId, slotIndex: UInt256) =
|
|
trace "slot filled, removing from slot queue", requestId, slotIndex
|
|
queue.delete(requestId, slotIndex.truncate(uint16))
|
|
|
|
for agent in sales.agents:
|
|
agent.onSlotFilled(requestId, slotIndex)
|
|
|
|
try:
|
|
let sub = await market.subscribeSlotFilled(onSlotFilled)
|
|
sales.subscriptions.add(sub)
|
|
except CatchableError as e:
|
|
error "Unable to subscribe to slot filled events", msg = e.msg
|
|
|
|
proc subscribeSlotFreed(sales: Sales) {.async.} =
|
|
let context = sales.context
|
|
let market = context.market
|
|
|
|
proc onSlotFreed(requestId: RequestId, slotIndex: UInt256) =
|
|
sales.onSlotFreed(requestId, slotIndex)
|
|
|
|
try:
|
|
let sub = await market.subscribeSlotFreed(onSlotFreed)
|
|
sales.subscriptions.add(sub)
|
|
except CatchableError as e:
|
|
error "Unable to subscribe to slot freed events", msg = e.msg
|
|
|
|
proc startSlotQueue(sales: Sales) {.async.} =
|
|
let slotQueue = sales.context.slotQueue
|
|
let reservations = sales.context.reservations
|
|
|
|
slotQueue.onProcessSlot =
|
|
proc(item: SlotQueueItem, done: Future[void]) {.async.} =
|
|
sales.processSlot(item, done)
|
|
|
|
asyncSpawn slotQueue.start()
|
|
|
|
reservations.onReservationAdded =
|
|
proc(availability: Availability) {.async.} =
|
|
await sales.onReservationAdded(availability)
|
|
|
|
|
|
proc subscribe(sales: Sales) {.async.} =
|
|
await sales.subscribeRequested()
|
|
await sales.subscribeFulfilled()
|
|
await sales.subscribeFailure()
|
|
await sales.subscribeSlotFilled()
|
|
await sales.subscribeSlotFreed()
|
|
await sales.subscribeCancellation()
|
|
|
|
proc unsubscribe(sales: Sales) {.async.} =
|
|
for sub in sales.subscriptions:
|
|
try:
|
|
await sub.unsubscribe()
|
|
except CatchableError as e:
|
|
error "Unable to unsubscribe from subscription", error = e.msg
|
|
|
|
proc start*(sales: Sales) {.async.} =
|
|
await sales.load()
|
|
await sales.startSlotQueue()
|
|
await sales.subscribe()
|
|
|
|
proc stop*(sales: Sales) {.async.} =
|
|
trace "stopping sales"
|
|
sales.running = false
|
|
await sales.context.slotQueue.stop()
|
|
await sales.unsubscribe()
|
|
await sales.trackedFutures.cancelTracked()
|
|
|
|
for agent in sales.agents:
|
|
await agent.stop()
|
|
|
|
sales.agents = @[]
|