manifold/functions/src/add-bounty.ts
2022-08-16 10:52:07 -07:00

56 lines
1.7 KiB
TypeScript

import * as admin from 'firebase-admin'
import { z } from 'zod'
import { Contract } from '../../common/contract'
import { User } from '../../common/user'
import { APIError, newEndpoint, validate } from './api'
const firestore = admin.firestore()
const bodySchema = z.object({
contractId: z.string(),
amount: z.number().gt(0),
})
export const addbounty = newEndpoint({}, async (req, auth) => {
const { amount, contractId } = validate(bodySchema, req.body)
return await firestore.runTransaction(async (transaction) => {
const userDoc = firestore.doc(`users/${auth.uid}`)
const userSnap = await transaction.get(userDoc)
if (!userSnap.exists) throw new APIError(400, 'User not found')
const user = userSnap.data() as User
const contractDoc = firestore.doc(`contracts/${contractId}`)
const contractSnap = await transaction.get(contractDoc)
if (!contractSnap.exists) throw new APIError(400, 'Invalid contract')
const contract = contractSnap.data() as Contract
if (contract.outcomeType !== 'BOUNTY')
throw new APIError(400, "Can't add bounties to non-BOUNTY contracts")
const { closeTime } = contract
if (closeTime && Date.now() > closeTime)
throw new APIError(400, 'Contract is closed')
if (user.balance < amount) throw new APIError(400, 'Insufficient balance')
// TODO: Capture with txns?
transaction.update(userDoc, {
balance: user.balance - amount,
totalDeposits: user.totalDeposits - amount,
})
const existingPrize = contract.prizes[user.id] ?? 0
transaction.update(contractDoc, {
prizes: {
...contract.prizes,
[user.id]: existingPrize + amount,
},
totalPrizes: contract.totalPrizes + amount,
})
return { status: 'success' }
})
})