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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| import { Chain, PoolEventType } from '@prisma/client'; | ||
| import { prisma } from '../../../prisma/prisma-client'; | ||
| import { formatUnits } from 'viem'; | ||
| import type { BalancerSubgraphService } from '../../subgraphs/balancer-subgraph/balancer-subgraph.service'; | ||
| import { JoinExit_OrderBy, OrderDirection } from '../../subgraphs/balancer-subgraph/generated/balancer-subgraph-types'; | ||
|
|
||
| /** | ||
| * Time helper to round timestamp to the nearest hour | ||
| */ | ||
| const roundToHour = (timestamp: number) => Math.floor(timestamp / 3600) * 3600; | ||
|
|
||
| const isFulfilled = <T>(input: PromiseSettledResult<T>): input is PromiseFulfilledResult<T> => | ||
| input.status === 'fulfilled'; | ||
|
|
||
| /** | ||
| * Get the join and exit events from the subgraph and store them in the database | ||
| * | ||
| * @param vaultSubgraphClient | ||
| */ | ||
| export const syncJoinExitsV2 = async (v2SubgraphClient: BalancerSubgraphService, chain: Chain) => { | ||
| const vaultVersion = 2; | ||
|
|
||
| // Get latest event from the DB | ||
| const latestEvent = await prisma.poolEvent.findFirst({ | ||
| where: { | ||
| chain: chain, | ||
| vaultVersion, | ||
| }, | ||
| orderBy: { | ||
| blockTimestamp: 'desc', | ||
| }, | ||
| }); | ||
|
|
||
| // Get events | ||
| const { joinExits } = await v2SubgraphClient.getPoolJoinExits({ | ||
| first: 1000, | ||
| where: { | ||
| timestamp_gte: Number(latestEvent?.blockTimestamp || 0), | ||
| }, | ||
| orderBy: JoinExit_OrderBy.Timestamp, | ||
| orderDirection: OrderDirection.Desc, | ||
| }); | ||
|
|
||
| // Store only the events that are not already in the DB | ||
| const existingEvents = await prisma.poolEvent.findMany({ | ||
| where: { | ||
| id: { in: joinExits.map((event) => event.id) }, | ||
| chain: chain, | ||
| vaultVersion, | ||
| }, | ||
| }); | ||
|
|
||
| const events = joinExits.filter((event) => !existingEvents.some((existing) => existing.id === event.id)); | ||
|
|
||
| // Prepare DB entries | ||
| const dbEntries = ( | ||
| await Promise.allSettled( | ||
| events.map(async (event) => { | ||
| // TODO: Calculate USD amounts with token prices at the time of the event | ||
| // 🚨 Reading from the DB in a loop – will get slow with a large events volume | ||
| const prices = await prisma.prismaTokenPrice.findMany({ | ||
| where: { | ||
| tokenAddress: { in: event.pool.tokensList }, | ||
| timestamp: roundToHour(Number(event.timestamp)), // 🚨 Assuming all prices are available hourly | ||
| chain: chain, | ||
| }, | ||
| include: { | ||
| token: true, | ||
| }, | ||
| }); | ||
|
|
||
| const usd = event.pool.tokensList.map((address, index) => { | ||
| const price = prices.find((price) => price.tokenAddress === address); | ||
| return { | ||
| address: address, | ||
| amount: event.amounts[index], | ||
| amountUsd: | ||
| Number(formatUnits(BigInt(event.amounts[index]), price?.token?.decimals ?? 18)) * | ||
| (price?.price || 0), // TODO: check USD amount | ||
| }; | ||
| }); | ||
|
|
||
| return { | ||
| id: event.id, // tx + logIndex | ||
| tx: event.tx, | ||
| type: event.type === 'Join' ? PoolEventType.JOIN : PoolEventType.EXIT, | ||
| poolId: event.pool.id, | ||
| chain: chain, | ||
| userAddress: event.sender, | ||
| blockNumber: Number(event.block), | ||
| blockTimestamp: Number(event.timestamp), | ||
| logPosition: Number(event.id.substring(66)), | ||
| amountUsd: usd.reduce((acc, token) => acc + Number(token.amountUsd), 0), | ||
| payload: { | ||
| tokens: usd, | ||
| }, | ||
| }; | ||
| }), | ||
| ) | ||
| ) | ||
| .filter(isFulfilled) | ||
| .map((result) => result.value); | ||
|
|
||
| // Create entries and skip duplicates | ||
| await prisma.poolEvent.createMany({ | ||
| data: dbEntries, | ||
| skipDuplicates: true, | ||
| }); | ||
|
|
||
| // TODO: do we need a separate function to update prices? If so, we should be syncing events first, then running a price on them | ||
|
|
||
| return 'ok'; | ||
| }; |
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