manifold/functions/src/place-bet.ts

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4.5 KiB
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2021-12-11 00:06:17 +00:00
import * as admin from 'firebase-admin'
import { APIError, newEndpoint, parseCredentials, lookupUser } from './api'
import { Contract } from '../../common/contract'
import { User } from '../../common/user'
import {
Cfmm (#64) * cpmm initial commit: common logic, cloud functions * remove unnecessary property * contract type * rename 'calculate.ts' => 'calculate-dpm.ts' * rename dpm calculations * use focus hook * mechanism-agnostic calculations * bet panel: use new calculations * use new calculations * delete markets cloud function * use correct contract type in scripts / functions * calculate fixed payouts; bets list calculations * new bet: use calculateCpmmPurchase * getOutcomeProbabilityAfterBet * use deductFixedFees * fix auto-refactor * fix antes * separate logic to payouts-dpm, payouts-fixed * liquidity provision tracking * remove comment * liquidity label * create liquidity provision even if no ante bet * liquidity fee * use all bets for getFixedCancelPayouts * updateUserBalance: allow negative balances * store initialProbability in contracts * turn on liquidity fee; turn off creator fee * Include time param in tweet url, so image preview is re-fetched * share redemption * cpmm ContractBetsTable display * formatMoney: handle minus zero * filter out redemption bets * track fees on contract and bets; change fee schedule for cpmm markets; only pay out creator fees at resolution * small fixes * small fixes * Redeem shares pays back loans first * Fix initial point on graph * calculateCpmmPurchase: deduct creator fee * Filter out redemption bets from feed * set env to dev for user-testing purposes * creator fees messaging * new cfmm: k = y^(1-p) * n^p * addCpmmLiquidity * correct price function * enable fees * handle overflow * liquidity provision tracking * raise fees * Fix merge error * fix dpm free response payout for single outcome * Fix DPM payout calculation * Remove hardcoding as dev Co-authored-by: James Grugett <jahooma@gmail.com>
2022-03-15 22:27:51 +00:00
getNewBinaryCpmmBetInfo,
getNewBinaryDpmBetInfo,
getNewMultiBetInfo,
Numeric range markets!! (#146) * Numeric contract type * Create market numeric type * Add numeric graph (coded without testing) * Outline of numeric bet panel * Update bet panel logic * create numeric contracts * remove batching for antes for numeric markets * Remove focus * numeric market range [1, 100] * Zoom graph * Hide bet panels * getNumericBets * Add numeric resolution panel * Use getNumericBets in bet panel calc * Switch bucket count to 100 * Parallelize ante creation * placeBet for numeric markets * halve std of numeric bets * Update resolveMarket with numeric type * Set min and max for contract * lower std for numeric bets * calculateNumericDpmShares: use sorted order * Use min and max to map the input * Fix probability calc * normpdf variance mislabeled * range input * merge * change numeric graph color * fix getNewContract params * bet panel labels * validation * number input * fix bucketing * bucket input, numeric resolution panel * outcome label * merge * numeric bet panel on mobile * Make text underneath filled green answer bar selectable * Default to 'all' feed category when loading page. * fix numeric resolution panel * fix numeric bet panel calculations * display numeric resolution * don't render NumericBetPanel for non numeric markets * numeric bets: store shares, bet amounts across buckets in each bet object * restore your bets for numeric markets * numeric pnl calculations * remove hasUserHitManaLimit * contrain contract type * handle undefined allOutcomeShares * numeric ante bet amount * use correct amount for numeric dpm payouts * change numeric graph/outcome color * numeric constants * hack to show correct numeric payout in calculateDpmPayoutAfterCorrectBet * remove comment * fix ante display in bet list * halve bucket count * cast to NumericContract * fix merge imports * OUTCOME_TYPES * typo * lower bucket count to 200 * store raw numeric value with bet * store raw numeric resolution value * number input max length * create page: min, max to undefined if not numeric market * numeric resolution formatting * expected value for numeric markets * expected value for numeric markets * rearrange lines for readability * move normalpdf to util/math * show bets tab * check if outcomeMode is undefined * remove extraneous auto-merge cruft * hide comment status for numeric markets * import Co-authored-by: mantikoros <sgrugett@gmail.com>
2022-05-19 17:42:03 +00:00
getNumericBetsInfo,
} from '../../common/new-bet'
import { addObjects, removeUndefinedProps } from '../../common/util/object'
import { Bet } from '../../common/bet'
Cfmm (#64) * cpmm initial commit: common logic, cloud functions * remove unnecessary property * contract type * rename 'calculate.ts' => 'calculate-dpm.ts' * rename dpm calculations * use focus hook * mechanism-agnostic calculations * bet panel: use new calculations * use new calculations * delete markets cloud function * use correct contract type in scripts / functions * calculate fixed payouts; bets list calculations * new bet: use calculateCpmmPurchase * getOutcomeProbabilityAfterBet * use deductFixedFees * fix auto-refactor * fix antes * separate logic to payouts-dpm, payouts-fixed * liquidity provision tracking * remove comment * liquidity label * create liquidity provision even if no ante bet * liquidity fee * use all bets for getFixedCancelPayouts * updateUserBalance: allow negative balances * store initialProbability in contracts * turn on liquidity fee; turn off creator fee * Include time param in tweet url, so image preview is re-fetched * share redemption * cpmm ContractBetsTable display * formatMoney: handle minus zero * filter out redemption bets * track fees on contract and bets; change fee schedule for cpmm markets; only pay out creator fees at resolution * small fixes * small fixes * Redeem shares pays back loans first * Fix initial point on graph * calculateCpmmPurchase: deduct creator fee * Filter out redemption bets from feed * set env to dev for user-testing purposes * creator fees messaging * new cfmm: k = y^(1-p) * n^p * addCpmmLiquidity * correct price function * enable fees * handle overflow * liquidity provision tracking * raise fees * Fix merge error * fix dpm free response payout for single outcome * Fix DPM payout calculation * Remove hardcoding as dev Co-authored-by: James Grugett <jahooma@gmail.com>
2022-03-15 22:27:51 +00:00
import { redeemShares } from './redeem-shares'
import { Fees } from '../../common/fees'
2021-12-11 00:06:17 +00:00
export const placeBet = newEndpoint(['POST'], async (req, _res) => {
const [bettor, _privateUser] = await lookupUser(await parseCredentials(req))
const { amount, outcome, contractId, value } = req.body || {}
if (amount < 1 || isNaN(amount) || !isFinite(amount))
throw new APIError(400, 'Invalid amount')
if (outcome !== 'YES' && outcome !== 'NO' && isNaN(+outcome))
throw new APIError(400, 'Invalid outcome')
Numeric range markets!! (#146) * Numeric contract type * Create market numeric type * Add numeric graph (coded without testing) * Outline of numeric bet panel * Update bet panel logic * create numeric contracts * remove batching for antes for numeric markets * Remove focus * numeric market range [1, 100] * Zoom graph * Hide bet panels * getNumericBets * Add numeric resolution panel * Use getNumericBets in bet panel calc * Switch bucket count to 100 * Parallelize ante creation * placeBet for numeric markets * halve std of numeric bets * Update resolveMarket with numeric type * Set min and max for contract * lower std for numeric bets * calculateNumericDpmShares: use sorted order * Use min and max to map the input * Fix probability calc * normpdf variance mislabeled * range input * merge * change numeric graph color * fix getNewContract params * bet panel labels * validation * number input * fix bucketing * bucket input, numeric resolution panel * outcome label * merge * numeric bet panel on mobile * Make text underneath filled green answer bar selectable * Default to 'all' feed category when loading page. * fix numeric resolution panel * fix numeric bet panel calculations * display numeric resolution * don't render NumericBetPanel for non numeric markets * numeric bets: store shares, bet amounts across buckets in each bet object * restore your bets for numeric markets * numeric pnl calculations * remove hasUserHitManaLimit * contrain contract type * handle undefined allOutcomeShares * numeric ante bet amount * use correct amount for numeric dpm payouts * change numeric graph/outcome color * numeric constants * hack to show correct numeric payout in calculateDpmPayoutAfterCorrectBet * remove comment * fix ante display in bet list * halve bucket count * cast to NumericContract * fix merge imports * OUTCOME_TYPES * typo * lower bucket count to 200 * store raw numeric value with bet * store raw numeric resolution value * number input max length * create page: min, max to undefined if not numeric market * numeric resolution formatting * expected value for numeric markets * expected value for numeric markets * rearrange lines for readability * move normalpdf to util/math * show bets tab * check if outcomeMode is undefined * remove extraneous auto-merge cruft * hide comment status for numeric markets * import Co-authored-by: mantikoros <sgrugett@gmail.com>
2022-05-19 17:42:03 +00:00
if (value !== undefined && !isFinite(value))
throw new APIError(400, 'Invalid value')
// run as transaction to prevent race conditions
return await firestore
.runTransaction(async (transaction) => {
const userDoc = firestore.doc(`users/${bettor.id}`)
const userSnap = await transaction.get(userDoc)
if (!userSnap.exists) throw new APIError(400, 'User not found')
const user = userSnap.data() as User
const contractDoc = firestore.doc(`contracts/${contractId}`)
const contractSnap = await transaction.get(contractDoc)
if (!contractSnap.exists) throw new APIError(400, 'Invalid contract')
const contract = contractSnap.data() as Contract
const { closeTime, outcomeType, mechanism, collectedFees, volume } =
contract
if (closeTime && Date.now() > closeTime)
throw new APIError(400, 'Trading is closed')
const yourBetsSnap = await transaction.get(
contractDoc.collection('bets').where('userId', '==', bettor.id)
)
const yourBets = yourBetsSnap.docs.map((doc) => doc.data() as Bet)
const loanAmount = 0 // getLoanAmount(yourBets, amount)
if (user.balance < amount) throw new APIError(400, 'Insufficient balance')
if (outcomeType === 'FREE_RESPONSE') {
const answerSnap = await transaction.get(
contractDoc.collection('answers').doc(outcome)
Cfmm (#64) * cpmm initial commit: common logic, cloud functions * remove unnecessary property * contract type * rename 'calculate.ts' => 'calculate-dpm.ts' * rename dpm calculations * use focus hook * mechanism-agnostic calculations * bet panel: use new calculations * use new calculations * delete markets cloud function * use correct contract type in scripts / functions * calculate fixed payouts; bets list calculations * new bet: use calculateCpmmPurchase * getOutcomeProbabilityAfterBet * use deductFixedFees * fix auto-refactor * fix antes * separate logic to payouts-dpm, payouts-fixed * liquidity provision tracking * remove comment * liquidity label * create liquidity provision even if no ante bet * liquidity fee * use all bets for getFixedCancelPayouts * updateUserBalance: allow negative balances * store initialProbability in contracts * turn on liquidity fee; turn off creator fee * Include time param in tweet url, so image preview is re-fetched * share redemption * cpmm ContractBetsTable display * formatMoney: handle minus zero * filter out redemption bets * track fees on contract and bets; change fee schedule for cpmm markets; only pay out creator fees at resolution * small fixes * small fixes * Redeem shares pays back loans first * Fix initial point on graph * calculateCpmmPurchase: deduct creator fee * Filter out redemption bets from feed * set env to dev for user-testing purposes * creator fees messaging * new cfmm: k = y^(1-p) * n^p * addCpmmLiquidity * correct price function * enable fees * handle overflow * liquidity provision tracking * raise fees * Fix merge error * fix dpm free response payout for single outcome * Fix DPM payout calculation * Remove hardcoding as dev Co-authored-by: James Grugett <jahooma@gmail.com>
2022-03-15 22:27:51 +00:00
)
if (!answerSnap.exists) throw new APIError(400, 'Invalid contract')
}
const newBetDoc = firestore
.collection(`contracts/${contractId}/bets`)
.doc()
const {
newBet,
newPool,
newTotalShares,
newTotalBets,
newBalance,
newTotalLiquidity,
fees,
newP,
} =
outcomeType === 'BINARY'
? mechanism === 'dpm-2'
? getNewBinaryDpmBetInfo(
Cfmm (#64) * cpmm initial commit: common logic, cloud functions * remove unnecessary property * contract type * rename 'calculate.ts' => 'calculate-dpm.ts' * rename dpm calculations * use focus hook * mechanism-agnostic calculations * bet panel: use new calculations * use new calculations * delete markets cloud function * use correct contract type in scripts / functions * calculate fixed payouts; bets list calculations * new bet: use calculateCpmmPurchase * getOutcomeProbabilityAfterBet * use deductFixedFees * fix auto-refactor * fix antes * separate logic to payouts-dpm, payouts-fixed * liquidity provision tracking * remove comment * liquidity label * create liquidity provision even if no ante bet * liquidity fee * use all bets for getFixedCancelPayouts * updateUserBalance: allow negative balances * store initialProbability in contracts * turn on liquidity fee; turn off creator fee * Include time param in tweet url, so image preview is re-fetched * share redemption * cpmm ContractBetsTable display * formatMoney: handle minus zero * filter out redemption bets * track fees on contract and bets; change fee schedule for cpmm markets; only pay out creator fees at resolution * small fixes * small fixes * Redeem shares pays back loans first * Fix initial point on graph * calculateCpmmPurchase: deduct creator fee * Filter out redemption bets from feed * set env to dev for user-testing purposes * creator fees messaging * new cfmm: k = y^(1-p) * n^p * addCpmmLiquidity * correct price function * enable fees * handle overflow * liquidity provision tracking * raise fees * Fix merge error * fix dpm free response payout for single outcome * Fix DPM payout calculation * Remove hardcoding as dev Co-authored-by: James Grugett <jahooma@gmail.com>
2022-03-15 22:27:51 +00:00
user,
outcome as 'YES' | 'NO',
Cfmm (#64) * cpmm initial commit: common logic, cloud functions * remove unnecessary property * contract type * rename 'calculate.ts' => 'calculate-dpm.ts' * rename dpm calculations * use focus hook * mechanism-agnostic calculations * bet panel: use new calculations * use new calculations * delete markets cloud function * use correct contract type in scripts / functions * calculate fixed payouts; bets list calculations * new bet: use calculateCpmmPurchase * getOutcomeProbabilityAfterBet * use deductFixedFees * fix auto-refactor * fix antes * separate logic to payouts-dpm, payouts-fixed * liquidity provision tracking * remove comment * liquidity label * create liquidity provision even if no ante bet * liquidity fee * use all bets for getFixedCancelPayouts * updateUserBalance: allow negative balances * store initialProbability in contracts * turn on liquidity fee; turn off creator fee * Include time param in tweet url, so image preview is re-fetched * share redemption * cpmm ContractBetsTable display * formatMoney: handle minus zero * filter out redemption bets * track fees on contract and bets; change fee schedule for cpmm markets; only pay out creator fees at resolution * small fixes * small fixes * Redeem shares pays back loans first * Fix initial point on graph * calculateCpmmPurchase: deduct creator fee * Filter out redemption bets from feed * set env to dev for user-testing purposes * creator fees messaging * new cfmm: k = y^(1-p) * n^p * addCpmmLiquidity * correct price function * enable fees * handle overflow * liquidity provision tracking * raise fees * Fix merge error * fix dpm free response payout for single outcome * Fix DPM payout calculation * Remove hardcoding as dev Co-authored-by: James Grugett <jahooma@gmail.com>
2022-03-15 22:27:51 +00:00
amount,
contract,
Cfmm (#64) * cpmm initial commit: common logic, cloud functions * remove unnecessary property * contract type * rename 'calculate.ts' => 'calculate-dpm.ts' * rename dpm calculations * use focus hook * mechanism-agnostic calculations * bet panel: use new calculations * use new calculations * delete markets cloud function * use correct contract type in scripts / functions * calculate fixed payouts; bets list calculations * new bet: use calculateCpmmPurchase * getOutcomeProbabilityAfterBet * use deductFixedFees * fix auto-refactor * fix antes * separate logic to payouts-dpm, payouts-fixed * liquidity provision tracking * remove comment * liquidity label * create liquidity provision even if no ante bet * liquidity fee * use all bets for getFixedCancelPayouts * updateUserBalance: allow negative balances * store initialProbability in contracts * turn on liquidity fee; turn off creator fee * Include time param in tweet url, so image preview is re-fetched * share redemption * cpmm ContractBetsTable display * formatMoney: handle minus zero * filter out redemption bets * track fees on contract and bets; change fee schedule for cpmm markets; only pay out creator fees at resolution * small fixes * small fixes * Redeem shares pays back loans first * Fix initial point on graph * calculateCpmmPurchase: deduct creator fee * Filter out redemption bets from feed * set env to dev for user-testing purposes * creator fees messaging * new cfmm: k = y^(1-p) * n^p * addCpmmLiquidity * correct price function * enable fees * handle overflow * liquidity provision tracking * raise fees * Fix merge error * fix dpm free response payout for single outcome * Fix DPM payout calculation * Remove hardcoding as dev Co-authored-by: James Grugett <jahooma@gmail.com>
2022-03-15 22:27:51 +00:00
loanAmount,
newBetDoc.id
)
: (getNewBinaryCpmmBetInfo(
user,
outcome as 'YES' | 'NO',
amount,
contract,
loanAmount,
newBetDoc.id
) as any)
Numeric range markets!! (#146) * Numeric contract type * Create market numeric type * Add numeric graph (coded without testing) * Outline of numeric bet panel * Update bet panel logic * create numeric contracts * remove batching for antes for numeric markets * Remove focus * numeric market range [1, 100] * Zoom graph * Hide bet panels * getNumericBets * Add numeric resolution panel * Use getNumericBets in bet panel calc * Switch bucket count to 100 * Parallelize ante creation * placeBet for numeric markets * halve std of numeric bets * Update resolveMarket with numeric type * Set min and max for contract * lower std for numeric bets * calculateNumericDpmShares: use sorted order * Use min and max to map the input * Fix probability calc * normpdf variance mislabeled * range input * merge * change numeric graph color * fix getNewContract params * bet panel labels * validation * number input * fix bucketing * bucket input, numeric resolution panel * outcome label * merge * numeric bet panel on mobile * Make text underneath filled green answer bar selectable * Default to 'all' feed category when loading page. * fix numeric resolution panel * fix numeric bet panel calculations * display numeric resolution * don't render NumericBetPanel for non numeric markets * numeric bets: store shares, bet amounts across buckets in each bet object * restore your bets for numeric markets * numeric pnl calculations * remove hasUserHitManaLimit * contrain contract type * handle undefined allOutcomeShares * numeric ante bet amount * use correct amount for numeric dpm payouts * change numeric graph/outcome color * numeric constants * hack to show correct numeric payout in calculateDpmPayoutAfterCorrectBet * remove comment * fix ante display in bet list * halve bucket count * cast to NumericContract * fix merge imports * OUTCOME_TYPES * typo * lower bucket count to 200 * store raw numeric value with bet * store raw numeric resolution value * number input max length * create page: min, max to undefined if not numeric market * numeric resolution formatting * expected value for numeric markets * expected value for numeric markets * rearrange lines for readability * move normalpdf to util/math * show bets tab * check if outcomeMode is undefined * remove extraneous auto-merge cruft * hide comment status for numeric markets * import Co-authored-by: mantikoros <sgrugett@gmail.com>
2022-05-19 17:42:03 +00:00
: outcomeType === 'NUMERIC' && mechanism === 'dpm-2'
? getNumericBetsInfo(
user,
value,
outcome,
amount,
contract,
newBetDoc.id
)
: getNewMultiBetInfo(
user,
outcome,
amount,
contract as any,
loanAmount,
newBetDoc.id
)
if (newP !== undefined && !isFinite(newP)) {
throw new APIError(400, 'Trade rejected due to overflow error.')
}
transaction.create(newBetDoc, newBet)
transaction.update(
contractDoc,
removeUndefinedProps({
pool: newPool,
p: newP,
totalShares: newTotalShares,
totalBets: newTotalBets,
totalLiquidity: newTotalLiquidity,
collectedFees: addObjects<Fees>(fees ?? {}, collectedFees ?? {}),
volume: volume + Math.abs(amount),
})
)
if (!isFinite(newBalance)) {
throw new APIError(500, 'Invalid user balance for ' + user.username)
}
transaction.update(userDoc, { balance: newBalance })
return { betId: newBetDoc.id }
})
.then(async (result) => {
await redeemShares(bettor.id, contractId)
return result
})
})
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const firestore = admin.firestore()