daily free markets' liquidity provided by @ManifoldMarkets

common/antes.ts

@@ -11,8 +11,10 @@ export const FIXED_ANTE = 100
 export const PHANTOM_ANTE = 0.001
 export const MINIMUM_ANTE = 50
 
+export const HOUSE_LIQUIDITY_PROVIDER_ID = 'IPTOzEqrpkWmEzh6hwvAyY9PqFb2' // @ManifoldMarkets' id
+
 export function getCpmmInitialLiquidity(
-  creator: User,
+  providerId: string,
   contract: FullContract<CPMM, Binary>,
   anteId: string,
   amount: number
@@ -21,7 +23,7 @@ export function getCpmmInitialLiquidity(
 
   const lp: LiquidityProvision = {
     id: anteId,
-    userId: creator.id,
+    userId: providerId,
     contractId: contract.id,
     createdTime,
     isAnte: true,

functions/src/create-contract.ts

@@ -22,6 +22,7 @@ import {
   getAnteBets,
   getCpmmInitialLiquidity,
   getFreeAnswerAnte,
+  HOUSE_LIQUIDITY_PROVIDER_ID,
   MINIMUM_ANTE,
 } from '../../common/antes'
 import { getNoneAnswer } from '../../common/answer'
@@ -144,8 +145,10 @@ export const createContract = functions
             .collection(`contracts/${contract.id}/liquidity`)
             .doc()
 
+          const providerId = isFree ? HOUSE_LIQUIDITY_PROVIDER_ID : creator.id
+
           const lp = getCpmmInitialLiquidity(
-            creator,
+            providerId,
             contract as FullContract<CPMM, Binary>,
             liquidityDoc.id,
             ante

functions/src/scripts/migrate-to-cfmm.ts

@@ -106,7 +106,7 @@ async function recalculateContract(contractRef: DocRef, isCommit = false) {
     const liquidityDocRef = contractRef.collection('liquidity').doc()
 
     const lp = getCpmmInitialLiquidity(
-      { id: 'IPTOzEqrpkWmEzh6hwvAyY9PqFb2' } as User, // use @ManifoldMarkets' id
+      'IPTOzEqrpkWmEzh6hwvAyY9PqFb2', // use @ManifoldMarkets' id
       {
         ...contract,
         ...contractUpdate,