use new calculations

common/calculate-cpmm.ts

@@ -88,6 +88,14 @@ export function calculateCpmmSale(
   return { saleValue, newPool }
 }
 
+export function getCpmmProbabilityAfterSale(
+  contract: FullContract<CPMM, Binary>,
+  bet: Bet
+) {
+  const { newPool } = calculateCpmmSale(contract, bet)
+  return getCpmmProbability(newPool)
+}
+
 export function calculateFixedPayout(
   contract: FullContract<CPMM, Binary>,
   bet: Bet,

common/calculate.ts

@@ -3,6 +3,7 @@ import {
   calculateCpmmShares,
   getCpmmProbability,
   getCpmmProbabilityAfterBet,
+  getCpmmProbabilityAfterSale,
 } from './calculate-cpmm'
 import {
   calculateDpmPayoutAfterCorrectBet,
@@ -10,6 +11,7 @@ import {
   getDpmOutcomeProbability,
   getDpmProbability,
   getDpmProbabilityAfterBet,
+  getDpmProbabilityAfterSale,
 } from './calculate-dpm'
 import { Binary, Contract, CPMM, DPM, FullContract } from './contract'
 import { FEES } from './fees'
@@ -20,6 +22,14 @@ export function getProbability(contract: FullContract<DPM | CPMM, Binary>) {
     : getDpmProbability(contract.totalShares)
 }
 
+export function getInitialProbability(
+  contract: FullContract<DPM | CPMM, Binary>
+) {
+  return contract.mechanism === 'cpmm-1'
+    ? getCpmmProbability(contract.liquidity[contract.creatorId])
+    : getDpmProbability(contract.phantomShares ?? contract.totalShares)
+}
+
 export function getOutcomeProbability(contract: Contract, outcome: string) {
   return contract.mechanism === 'cpmm-1'
     ? getCpmmProbability(contract.pool)
@@ -56,6 +66,19 @@ export function calculatePayoutAfterCorrectBet(contract: Contract, bet: Bet) {
     : calculateDpmPayoutAfterCorrectBet(contract, bet)
 }
 
+export function getProbabilityAfterSale(
+  contract: Contract,
+  outcome: string,
+  shares: number
+) {
+  return contract.mechanism === 'cpmm-1'
+    ? getCpmmProbabilityAfterSale(
+        contract as FullContract<CPMM, Binary>,
+        { shares, outcome } as Bet
+      )
+    : getDpmProbabilityAfterSale(contract.totalShares, outcome, shares)
+}
+
 export const deductFees = (betAmount: number, winnings: number) => {
   return winnings > betAmount
     ? betAmount + (1 - FEES) * (winnings - betAmount)

web/components/bet-row.tsx

@@ -1,14 +1,15 @@
 import clsx from 'clsx'
 import { Fragment, useState } from 'react'
 import { Dialog, Transition } from '@headlessui/react'
-import { Contract } from '../lib/firebase/contracts'
+
 import { BetPanel } from './bet-panel'
 import { Row } from './layout/row'
 import { YesNoSelector } from './yes-no-selector'
+import { Binary, CPMM, DPM, FullContract } from '../../common/contract'
 
 // Inline version of a bet panel. Opens BetPanel in a new modal.
 export default function BetRow(props: {
-  contract: Contract
+  contract: FullContract<DPM | CPMM, Binary>
   className?: string
   labelClassName?: string
 }) {

web/components/bets-list.tsx

@@ -25,9 +25,6 @@ import { UserLink } from './user-page'
 import {
   calculateDpmPayout,
   calculateDpmSaleAmount,
-  getDpmOutcomeProbability,
-  getDpmProbability,
-  getDpmProbabilityAfterSale,
   resolvedDpmPayout,
 } from '../../common/calculate-dpm'
 import { sellBet } from '../lib/firebase/api-call'
@@ -36,6 +33,11 @@ import { OutcomeLabel, YesLabel, NoLabel } from './outcome-label'
 import { filterDefined } from '../../common/util/array'
 import { LoadingIndicator } from './loading-indicator'
 import { SiteLink } from './site-link'
+import {
+  getOutcomeProbability,
+  getProbability,
+  getProbabilityAfterSale,
+} from '../../common/calculate'
 
 type BetSort = 'newest' | 'profit' | 'settled' | 'value'
 
@@ -385,7 +387,7 @@ export function MyBetsSummary(props: {
                     <>
                       Payout at{' '}
                       <span className="text-blue-400">
-                        {formatPercent(getDpmProbability(contract.totalShares))}
+                        {formatPercent(getProbability(contract))}
                       </span>
                     </>
                   ) : (
@@ -519,16 +521,12 @@ function SellButton(props: { contract: Contract; bet: Bet }) {
 
   const [isSubmitting, setIsSubmitting] = useState(false)
 
-  const initialProb = getDpmOutcomeProbability(
+  const initialProb = getOutcomeProbability(
-    contract.totalShares,
+    contract,
     outcome === 'NO' ? 'YES' : outcome
   )
 
-  const outcomeProb = getDpmProbabilityAfterSale(
+  const outcomeProb = getProbabilityAfterSale(contract, outcome, shares)
-    contract.totalShares,
-    outcome,
-    shares
-  )
 
   const saleAmount = calculateDpmSaleAmount(contract, bet)
 

web/components/contract-prob-graph.tsx

@@ -2,20 +2,21 @@ import { DatumValue } from '@nivo/core'
 import { ResponsiveLine } from '@nivo/line'
 import dayjs from 'dayjs'
 import { Bet } from '../../common/bet'
-import { getDpmProbability } from '../../common/calculate-dpm'
+import { getInitialProbability } from '../../common/calculate'
+import { Binary, CPMM, DPM, FullContract } from '../../common/contract'
 import { useBetsWithoutAntes } from '../hooks/use-bets'
 import { useWindowSize } from '../hooks/use-window-size'
-import { Contract } from '../lib/firebase/contracts'
 
-export function ContractProbGraph(props: { contract: Contract; bets: Bet[] }) {
+export function ContractProbGraph(props: {
+  contract: FullContract<DPM | CPMM, Binary>
+  bets: Bet[]
+}) {
   const { contract } = props
-  const { phantomShares, resolutionTime, closeTime } = contract
+  const { resolutionTime, closeTime } = contract
 
   const bets = useBetsWithoutAntes(contract, props.bets)
 
-  const startProb = getDpmProbability(
+  const startProb = getInitialProbability(contract)
-    phantomShares as { [outcome: string]: number }
-  )
 
   const times = bets
     ? [contract.createdTime, ...bets.map((bet) => bet.createdTime)].map(

web/components/contracts-list.tsx

@@ -13,6 +13,7 @@ import { Col } from './layout/col'
 import { SiteLink } from './site-link'
 import { ContractCard } from './contract-card'
 import { Sort, useQueryAndSortParams } from '../hooks/use-sort-and-query-params'
+import { Answer } from '../../common/answer'
 
 export function ContractsGrid(props: {
   contracts: Contract[]
@@ -217,7 +218,11 @@ export function SearchableGrid(props: {
       check(c.creatorName) ||
       check(c.creatorUsername) ||
       check(c.lowercaseTags.map((tag) => `#${tag}`).join(' ')) ||
-      check((c.answers ?? []).map((answer) => answer.text).join(' '))
+      check(
+        ((c as any).answers ?? [])
+          .map((answer: Answer) => answer.text)
+          .join(' ')
+      )
   )
 
   if (sort === 'newest' || sort === 'all') {

web/components/resolution-panel.tsx

@@ -1,7 +1,6 @@
 import clsx from 'clsx'
 import React, { useEffect, useState } from 'react'
 
-import { Contract } from '../lib/firebase/contracts'
 import { Col } from './layout/col'
 import { Title } from './title'
 import { User } from '../lib/firebase/users'
@@ -10,12 +9,13 @@ import { Spacer } from './layout/spacer'
 import { ResolveConfirmationButton } from './confirmation-button'
 import { resolveMarket } from '../lib/firebase/api-call'
 import { ProbabilitySelector } from './probability-selector'
-import { getDpmProbability } from '../../common/calculate-dpm'
 import { CREATOR_FEE } from '../../common/fees'
+import { getProbability } from '../../common/calculate'
+import { Binary, CPMM, DPM, FullContract } from '../../common/contract'
 
 export function ResolutionPanel(props: {
   creator: User
-  contract: Contract
+  contract: FullContract<DPM | CPMM, Binary>
   className?: string
 }) {
   useEffect(() => {
@@ -29,9 +29,7 @@ export function ResolutionPanel(props: {
     'YES' | 'NO' | 'MKT' | 'CANCEL' | undefined
   >()
 
-  const [prob, setProb] = useState(
+  const [prob, setProb] = useState(getProbability(contract) * 100)
-    getDpmProbability(contract.totalShares) * 100
-  )
 
   const [isSubmitting, setIsSubmitting] = useState(false)
   const [error, setError] = useState<string | undefined>(undefined)

web/pages/api/v0/_types.ts

@@ -1,7 +1,7 @@
 import { Bet } from '../../../../common/bet'
 import { getDpmProbability } from '../../../../common/calculate-dpm'
 import { Comment } from '../../../../common/comment'
-import { Contract } from '../../../../common/contract'
+import { DPM, FullContract } from '../../../../common/contract'
 
 export type LiteMarket = {
   // Unique identifer for this market
@@ -56,7 +56,7 @@ export function toLiteMarket({
   isResolved,
   resolution,
   resolutionTime,
-}: Contract): LiteMarket {
+}: FullContract<DPM, any>): LiteMarket {
   return {
     id,
     creatorUsername,

web/pages/make-predictions.tsx

@@ -3,11 +3,12 @@ import dayjs from 'dayjs'
 import Link from 'next/link'
 import { useState } from 'react'
 import Textarea from 'react-expanding-textarea'
-import { getDpmProbability } from '../../common/calculate-dpm'
+
+import { getProbability } from '../../common/calculate'
+import { Binary, CPMM, DPM, FullContract } from '../../common/contract'
 import { parseWordsAsTags } from '../../common/util/parse'
 import { AmountInput } from '../components/amount-input'
 import { InfoTooltip } from '../components/info-tooltip'
-
 import { Col } from '../components/layout/col'
 import { Row } from '../components/layout/row'
 import { Spacer } from '../components/layout/spacer'
@@ -16,7 +17,7 @@ import { Page } from '../components/page'
 import { Title } from '../components/title'
 import { useUser } from '../hooks/use-user'
 import { createContract } from '../lib/firebase/api-call'
-import { Contract, contractPath } from '../lib/firebase/contracts'
+import { contractPath } from '../lib/firebase/contracts'
 
 type Prediction = {
   question: string
@@ -25,8 +26,8 @@ type Prediction = {
   createdUrl?: string
 }
 
-function toPrediction(contract: Contract): Prediction {
+function toPrediction(contract: FullContract<DPM | CPMM, Binary>): Prediction {
-  const startProb = getDpmProbability(contract.totalShares)
+  const startProb = getProbability(contract)
   return {
     question: contract.question,
     description: contract.description,
@@ -101,7 +102,9 @@ export default function MakePredictions() {
   const [description, setDescription] = useState('')
   const [tags, setTags] = useState('')
   const [isSubmitting, setIsSubmitting] = useState(false)
-  const [createdContracts, setCreatedContracts] = useState<Contract[]>([])
+  const [createdContracts, setCreatedContracts] = useState<
+    FullContract<DPM | CPMM, Binary>[]
+  >([])
 
   const [ante, setAnte] = useState<number | undefined>(100)
   const [anteError, setAnteError] = useState<string | undefined>()