call getPositionInfo; add depositTime to PositionLend

schema.graphql

@@ -716,12 +716,12 @@ type Position @entity {
   tokenURI: String!         # tokenURI of the positionNFT
 }
 
-# TODO: add depositTime?
 # created to handle the seperate lpb positions for each bucket index
 type PositionLend @entity {
   id: Bytes! # $positionId + '|' + $bucketIndex
   bucket: Bucket! # pointer to associated Bucket entity
-  bucketIndex: BigInt! # index of the bucket with lpb
+  bucketIndex: Int! # index of the bucket with lpb
+  depositTime: BigInt! # time at which the position was deposited
   lpb: BigDecimal! # amount of LPB position has in the bucket
   lpbValueInQuote: BigDecimal! # quote equivalent value of LPB in the bucket
 }

src/mappings/position-manager.ts

@@ -27,7 +27,7 @@ import { getDepositTime, lpbValueInQuote } from "../utils/pool/lend"
 import { ONE_BI, ZERO_BD } from "../utils/constants"
 import { addressToBytes, bigIntArrayToIntArray, wadToDecimal } from "../utils/convert"
 import { getLendId, loadOrCreateLend } from "../utils/pool/lend"
-import { deletePosition, getPoolForToken, getPositionLendId, loadOrCreateLPToken, loadOrCreatePosition, loadOrCreatePositionLend } from "../utils/position"
+import { deletePosition, getPoolForToken, getPositionInfo, getPositionLendId, loadOrCreateLPToken, loadOrCreatePosition, loadOrCreatePositionLend } from "../utils/position"
 import { getLenderInfo } from "../utils/pool/pool"
 
 export function handleApproval(event: ApprovalEvent): void {
@@ -76,6 +76,7 @@ export function handleBurn(event: BurnEvent): void {
   burn.save()
 }
 
+// Lends are updated in the associated `TransferLP` event
 export function handleMemorializePosition(
   event: MemorializePositionEvent
 ): void {
@@ -108,15 +109,12 @@ export function handleMemorializePosition(
     // create PositionLend entity to track each lpb associated with the position
     const positionLendId = getPositionLendId(memorialize.tokenId, BigInt.fromI32(index))
     const positionLend = loadOrCreatePositionLend(positionLendId, bucketId, index)
-
-    // TODO: access the TransferLP event at the correct log index?
-    // TODO: track the lpb associated with each lend that was memorialized via RPC call
-    // positionLend.lpb =
+    const positionInfo = getPositionInfo(memorialize.tokenId, BigInt.fromI32(index))
+    //track the lpb and depositTime associated with each lend that was memorialized via RPC call
+    positionLend.depositTime = positionInfo.depositTime
+    positionLend.lpb = wadToDecimal(positionInfo.lpb)
     positionLend.lpbValueInQuote = lpbValueInQuote(memorialize.pool, index, positionLend.lpb)
     positionLend.save()
-
-    // Lends are updated in the associated `TransferLP` event
-
     // add PositionLend to position
     positionIndexes.push(positionLendId)
   }

src/utils/position.ts

@@ -7,6 +7,10 @@ import { getTokenName, getTokenSymbol, getTokenURI } from "./token-erc721"
 import { PositionManager } from "../../generated/PositionManager/PositionManager"
 import { bigIntToBytes } from "../utils/convert"
 
+/*****************************/
+/*** Constructor Functions ***/
+/*****************************/
+
 export function loadOrCreateLPToken(tokenAddress: Address): Token {
   const id = addressToBytes(tokenAddress)
   let token = Token.load(id)
@@ -62,8 +66,35 @@ export function deletePosition(tokenId: BigInt): void {
   store.remove('Position', bigIntToBytes(tokenId).toHexString())
 }
 
+export function deletePositionLend(positionLendId: Bytes): void {
+  store.remove('PositionLend', positionLendId.toHexString())
+}
+
+/*******************************/
+/*** Contract Call Functions ***/
+/*******************************/
+
 export function getPoolForToken(tokenId: BigInt): Address {
   const positionManagerAddress = positionManagerAddressTable.get(dataSource.network())!
   const positionManagerContract = PositionManager.bind(positionManagerAddress);
   return positionManagerContract.poolKey(tokenId)
-}
+}
+
+export class PositionInfo {
+  lpb: BigInt
+  depositTime: BigInt
+  constructor(lpb: BigInt, depositTime: BigInt) {
+    this.lpb = lpb
+    this.depositTime = depositTime
+  }
+}
+export function getPositionInfo(tokenId: BigInt, bucketIndex: BigInt): PositionInfo {
+  const positionManagerAddress = positionManagerAddressTable.get(dataSource.network())!
+  const positionManagerContract = PositionManager.bind(positionManagerAddress);
+  const positionInfoResult = positionManagerContract.getPositionInfo(tokenId, bucketIndex)
+
+  return new PositionInfo(
+    positionInfoResult.value0,
+    positionInfoResult.value1
+  )
+}