d8dc91d4b7
* Don't query bets repeatedly * Don't read entire database of contracts for no reason * Fix lint
45 lines
1.4 KiB
TypeScript
45 lines
1.4 KiB
TypeScript
import * as functions from 'firebase-functions'
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import * as admin from 'firebase-admin'
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import { max, sumBy } from 'lodash'
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import { getValues } from './utils'
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import { Bet } from '../../common/bet'
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import { batchedWaitAll } from '../../common/util/promise'
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const firestore = admin.firestore()
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const oneDay = 1000 * 60 * 60 * 24
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export const updateContractMetrics = functions.pubsub
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.schedule('every 15 minutes')
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.onRun(async () => {
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const contractDocs = await firestore.collection('contracts').listDocuments()
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await batchedWaitAll(
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contractDocs.map((doc) => async () => {
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const [volume24Hours, volume7Days] = await computeVolumes(doc.id, [
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oneDay,
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oneDay * 7,
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])
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return doc.update({
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volume24Hours,
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volume7Days,
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})
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})
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)
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})
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const computeVolumes = async (contractId: string, durationsMs: number[]) => {
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// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
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const longestDurationMs = max(durationsMs)!
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const allBets = await getValues<Bet>(
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firestore
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.collection(`contracts/${contractId}/bets`)
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.where('createdTime', '>', Date.now() - longestDurationMs)
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)
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return durationsMs.map((duration) => {
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const cutoff = Date.now() - duration
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const bets = allBets.filter((b) => b.createdTime > cutoff)
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return sumBy(bets, (bet) => (bet.isRedemption ? 0 : Math.abs(bet.amount)))
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})
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}
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