55 lines
1.5 KiB
Nim

import pkg/ethers
import pkg/questionable
import ./marketplace/market
import ./marketplace/marketplace
import ../config
import ../component
import ../state
logScope:
topics = "marketplace"
type
MarketplaceService* = ref object of Component
state: State
market: ?OnChainMarket
method getRecentSlotFillEvents*(m: MarketplaceService): Future[?!seq[SlotFilled]] {.async: (raises: []), base.} =
# There is (aprox.) 1 block every 10 seconds.
# 10 seconds * 6 * 60 = 3600 = 1 hour.
let blocksAgo = 6 * 60;
if market =? m.market:
try:
return success(await market.queryPastSlotFilledEvents(blocksAgo))
except CatchableError as err:
return failure(err.msg)
return failure("MarketplaceService is not started")
method start*(m: MarketplaceService): Future[?!void] {.async.} =
let provider = JsonRpcProvider.new(m.state.config.ethProvider)
without marketplaceAddress =? Address.init(m.state.config.marketplaceAddress):
return failure("Invalid MarketplaceAddress provided")
let marketplace = Marketplace.new(marketplaceAddress, provider)
m.market = some(OnChainMarket.new(marketplace))
return success()
method stop*(m: MarketplaceService): Future[?!void] {.async.} =
return success()
proc new(
T: type MarketplaceService,
state: State
): MarketplaceService =
return MarketplaceService(
state: state,
market: none(OnChainMarket)
)
proc createMarketplace*(state: State): MarketplaceService =
return MarketplaceService.new(
state
)