fix pool exit values (#392)

* fix pool exit values

* fix lint

Author: mihaisc

docker/README.md

@@ -60,6 +60,11 @@ clone this repository and run
 ```sh
 docker-compose up
 ```
+OR
+
+```sh
+docker-compose --env-file .env up | grep -a -E --color 'WARN.*|$'
+```
 
 This will start IPFS, Postgres and Graph Node in Docker and create persistent
 data directories for IPFS and Postgres in `./data/ipfs` and `./data/postgres`. You

schema.graphql

@@ -231,13 +231,13 @@ type PoolTransaction @entity {
   "base tokens transfered"
   baseToken: Token 
 
-  "number of base tokens transfered, if value is negative it means it was removed"       
+  "number of base tokens transfered, for type SWAP if value is negative it means it was removed"       
   baseTokenValue: BigDecimal
 
   "datatokens transfered"                        
   datatoken: Token
 
-  "number of datatokens transfered, if value is negative it means it was removed"
+  "number of datatokens transfered, for type SWAP if value is negative it means it was removed"
   datatokenValue: BigDecimal
 }
 

src/mappings/pool.ts

@@ -87,12 +87,12 @@ export function handleExit(event: LOG_EXIT): void {
   )
   if (token.isDatatoken) {
     poolTx.datatoken = token.id
-    poolTx.datatokenValue = ammount.neg()
+    poolTx.datatokenValue = ammount
 
     pool.datatokenLiquidity = pool.datatokenLiquidity.minus(ammount)
   } else {
     poolTx.baseToken = token.id
-    poolTx.baseTokenValue = ammount.neg()
+    poolTx.baseTokenValue = ammount
 
     pool.baseTokenLiquidity = pool.baseTokenLiquidity.minus(ammount)
     removeLiquidity(token.id, ammount)

src/mappings/utils/poolUtils.ts

@@ -17,16 +17,27 @@ export function getPoolShareId(
   return `${poolAddress}-${userAddress}`
 }
 
+export function getPoolTransactionId(
+  txHash: string,
+  userAddress: string
+): string {
+  return `${txHash}-${userAddress}`
+}
+
 export function getPoolTransaction(
   event: ethereum.Event,
   userAddress: string,
   type: string
 ): PoolTransaction {
-  let poolTx = PoolTransaction.load(event.transaction.hash.toHex())
+  const txId = getPoolTransactionId(
+    event.transaction.hash.toHexString(),
+    userAddress
+  )
+  let poolTx = PoolTransaction.load(txId)
 
   // create pool transaction and fill basic fields
   if (poolTx === null) {
-    poolTx = new PoolTransaction(event.transaction.hash.toHex())
+    poolTx = new PoolTransaction(txId)
 
     poolTx.user = userAddress
     poolTx.pool = event.address.toHex()