Compute volume for contracts. Show volume instead of liquidity for cpmm.

common/contract.ts

@@ -29,6 +29,7 @@ export type FullContract<
 
   closeEmailsSent?: number
 
+  volume?: number
   volume24Hours: number
   volume7Days: number
 

common/new-contract.ts

@@ -34,6 +34,8 @@ export function getNewContract(
       ? getBinaryCpmmProps(initialProb, ante) // getBinaryDpmProps(initialProb, ante)
       : getFreeAnswerProps(ante)
 
+  const volume = outcomeType === 'BINARY' ? 0 : ante
+
   const contract: Contract = removeUndefinedProps({
     id,
     slug,
@@ -54,6 +56,7 @@ export function getNewContract(
     lastUpdatedTime: Date.now(),
     closeTime,
 
+    volume,
     volume24Hours: 0,
     volume7Days: 0,
 

functions/src/create-answer.ts

@@ -57,7 +57,7 @@ export const createAnswer = functions.runWith({ minInstances: 1 }).https.onCall(
           message: 'Requires a free response contract',
         }
 
-      const { closeTime } = contract
+      const { closeTime, volume } = contract
       if (closeTime && Date.now() > closeTime)
         return { status: 'error', message: 'Trading is closed' }
 
@@ -121,6 +121,7 @@ export const createAnswer = functions.runWith({ minInstances: 1 }).https.onCall(
         totalShares: newTotalShares,
         totalBets: newTotalBets,
         answers: [...(contract.answers ?? []), answer],
+        volume: (volume ?? 0) + amount,
       })
 
       if (!isFinite(newBalance)) {

functions/src/place-bet.ts

@@ -49,7 +49,8 @@ export const placeBet = functions.runWith({ minInstances: 1 }).https.onCall(
           return { status: 'error', message: 'Invalid contract' }
         const contract = contractSnap.data() as Contract
 
-        const { closeTime, outcomeType, mechanism, collectedFees } = contract
+        const { closeTime, outcomeType, mechanism, collectedFees, volume } =
+          contract
         if (closeTime && Date.now() > closeTime)
           return { status: 'error', message: 'Trading is closed' }
 
@@ -129,6 +130,7 @@ export const placeBet = functions.runWith({ minInstances: 1 }).https.onCall(
             totalBets: newTotalBets,
             totalLiquidity: newTotalLiquidity,
             collectedFees: addObjects<Fees>(fees ?? {}, collectedFees ?? {}),
+            volume: (volume ?? 0) + Math.abs(amount),
           })
         )
 

functions/src/sell-bet.ts

@@ -35,7 +35,7 @@ export const sellBet = functions.runWith({ minInstances: 1 }).https.onCall(
         return { status: 'error', message: 'Invalid contract' }
       const contract = contractSnap.data() as Contract
 
-      const { closeTime, mechanism, collectedFees } = contract
+      const { closeTime, mechanism, collectedFees, volume } = contract
       if (closeTime && Date.now() > closeTime)
         return { status: 'error', message: 'Trading is closed' }
 
@@ -81,6 +81,7 @@ export const sellBet = functions.runWith({ minInstances: 1 }).https.onCall(
           totalShares: newTotalShares,
           totalBets: newTotalBets,
           collectedFees: addObjects<Fees>(fees ?? {}, collectedFees ?? {}),
+          volume: (volume ?? 0) + bet.amount,
         })
       )
 

functions/src/update-contract-metrics.ts

@@ -22,9 +22,11 @@ export const updateContractMetrics = functions.pubsub
       contracts.map((contract) => async () => {
         const volume24Hours = await computeVolumeFrom(contract, oneDay)
         const volume7Days = await computeVolumeFrom(contract, oneDay * 7)
+        const volume = await computeVolumeFrom(contract, oneDay * 365)
 
         const contractRef = firestore.doc(`contracts/${contract.id}`)
         return contractRef.update({
+          volume,
           volume24Hours,
           volume7Days,
         })

web/lib/firebase/contracts.ts

@@ -22,7 +22,6 @@ import { getDpmProbability } from '../../../common/calculate-dpm'
 import { createRNG, shuffle } from '../../../common/util/random'
 import { getCpmmProbability } from '../../../common/calculate-cpmm'
 import { formatMoney, formatPercent } from '../../../common/util/format'
-import { getCpmmLiquidity } from '../../../common/calculate-cpmm'
 export type { Contract }
 
 export function contractPath(contract: Contract) {
@@ -43,9 +42,7 @@ export function contractMetrics(contract: Contract) {
   const liquidityLabel =
     contract.mechanism === 'dpm-2'
       ? `${formatMoney(truePool)} pool`
-      : `${formatMoney(
+      : `${formatMoney(contract.volume ?? contract.volume7Days)} volume`
-          contract.totalLiquidity ?? getCpmmLiquidity(pool, contract.p)
-        )} liquidity`
 
   return { truePool, liquidityLabel, createdDate, resolvedDate }
 }