feat: add pool tracker

schema.graphql

@@ -130,6 +130,7 @@ type PoolSnapshot @entity {
   sumRealizedProfitFifoByPeriod: BigInt
   sumUnrealizedProfitAtMarketPrice: BigInt
   sumUnrealizedProfitAtNotional: BigInt
+  unrealizedProfitByPeriod: BigInt
 
   # Cumulated transaction data since pool creation
   sumBorrowedAmount: BigInt

src/mappings/handlers/blockHandlers.ts

@@ -75,7 +75,11 @@ async function _handleBlock(block: SubstrateBlock): Promise<void> {
         await asset.save()
         await pool.increaseInterestAccrued(asset.interestAccruedByPeriod)
         if (asset.isNonCash())
-          pool.increaseUnrealizedProfit(asset.unrealizedProfitAtMarketPrice, asset.unrealizedProfitAtNotional)
+          pool.increaseUnrealizedProfit(
+            asset.unrealizedProfitAtMarketPrice,
+            asset.unrealizedProfitAtNotional,
+            asset.unrealizedProfitByPeriod
+          )
         if (asset.actualMaturityDate < block.timestamp) pool.increaseDebtOverdue(asset.outstandingDebt)
         if (asset.isOffchainCash()) pool.increaseOffchainCashValue(asset.presentValue)
       }

src/mappings/services/assetService.ts

@@ -59,6 +59,7 @@ export class AssetService extends Asset {
 
     asset.unrealizedProfitAtMarketPrice = BigInt(0)
     asset.unrealizedProfitAtNotional = BigInt(0)
+    asset.unrealizedProfitByPeriod = BigInt(0)
 
     return asset
   }

src/mappings/services/poolService.ts

@@ -410,12 +410,14 @@ export class PoolService extends Pool {
     logger.info(`Resetting unrealizedProfit for pool ${this.id}`)
     this.sumUnrealizedProfitAtMarketPrice = BigInt(0)
     this.sumUnrealizedProfitAtNotional = BigInt(0)
+    this.sumUnrealizedProfitByPeriod = BigInt(0)
   }
 
-  public increaseUnrealizedProfit(atMarket: bigint, atNotional: bigint) {
+  public increaseUnrealizedProfit(atMarket: bigint, atNotional: bigint, byPeriod) {
     logger.info(`Increasing unrealizedProfit for pool ${this.id} atMarket: ${atMarket} notional: ${atNotional}`)
     this.sumUnrealizedProfitAtMarketPrice += atMarket
     this.sumUnrealizedProfitAtNotional += atNotional
+    this.sumUnrealizedProfitByPeriod += byPeriod
   }
 }