refactor: refactor code for deposit [SF-962]

schema.graphql

@@ -88,12 +88,7 @@ type User @entity {
   liquidations: [Liquidation!]! @derivedFrom(field: "user")
   transferCount: BigInt!
   transfers: [Transfer!]! @derivedFrom(field: "user")
-  depositETH: BigInt!
-  depositUSDC: BigInt!
-  depositWBTC: BigInt!
-  depositWFIL: BigInt!
-  depositAUSDC: BigInt!
-  depositAXLFIL: BigInt!
+  deposits: [Deposit!]! @derivedFrom(field: "user")
 }
 
 type DailyVolume @entity {
@@ -141,3 +136,10 @@ type Transfer @entity {
   blockNumber: BigInt!
   txHash: Bytes!
 }
+
+type Deposit @entity {
+  id: ID!
+  user: User!
+  currency: Bytes!
+  amount: BigInt!
+}

src/helper/initializer.ts

@@ -14,6 +14,7 @@ import {
     User,
     Liquidation,
     Transfer,
+    Deposit,
 } from '../../generated/schema';
 import { getDailyVolumeEntityId } from '../utils/id-generation';
 import { buildLendingMarketId } from '../utils/string';
@@ -63,12 +64,6 @@ export const getOrInitUser = (address: Bytes, createdAt: BigInt): User => {
         user.orderCount = BigInt.fromI32(0);
         user.liquidationCount = BigInt.fromI32(0);
         user.transferCount = BigInt.fromI32(0);
-        user.depositETH = BigInt.fromI32(0);
-        user.depositUSDC = BigInt.fromI32(0);
-        user.depositWBTC = BigInt.fromI32(0);
-        user.depositWFIL = BigInt.fromI32(0);
-        user.depositAUSDC = BigInt.fromI32(0);
-        user.depositAXLFIL = BigInt.fromI32(0);
         user.createdAt = createdAt;
         user.save();
 
@@ -244,22 +239,19 @@ export const initTransfer = (
     transfer.save();
 
     const currencyString = currency.toString();
-
-    if (currencyString == 'ETH') {
-        user.depositETH = user.depositETH.plus(amount);
-    } else if (currencyString == 'USDC') {
-        user.depositUSDC = user.depositUSDC.plus(amount);
-    } else if (currencyString == 'WBTC') {
-        user.depositWBTC = user.depositWBTC.plus(amount);
-    } else if (currencyString == 'WFIL') {
-        user.depositWFIL = user.depositWFIL.plus(amount);
-    } else if (currencyString == 'aUSDC') {
-        user.depositAUSDC = user.depositAUSDC.plus(amount);
-    } else if (currencyString == 'axlFIL') {
-        user.depositAXLFIL = user.depositAXLFIL.plus(amount);
+    const depositID = user.id + ':' + currencyString;
+    let deposit = Deposit.load(depositID);
+    if (!deposit) {
+        deposit = new Deposit(depositID);
+        deposit.user = user.id;
+        deposit.currency = currency;
+        deposit.amount = amount;
+        deposit.save();
     } else {
-        log.error('Invalid currency: ', currencyString.split(','));
+        deposit.amount = deposit.amount.plus(amount);
+        deposit.save();
     }
+
     user.transferCount = user.transferCount.plus(BigInt.fromI32(1));
     user.save();
 };

test/token-vault.test.ts

@@ -34,12 +34,9 @@ describe('Deposit & Withdraw', () => {
         assert.entityCount('User', 1);
         assert.fieldEquals('Protocol', 'ethereum', 'totalUsers', '1');
         assert.fieldEquals('User', ALICE.toHexString(), 'transferCount', '1');
-        assert.fieldEquals(
-            'User',
-            ALICE.toHexString(),
-            'depositETH',
-            amount.toString()
-        );
+
+        const depositID = ALICE.toHexString() + ':' + ccy.toString();
+        assert.fieldEquals('Deposit', depositID, 'amount', amount.toString());
 
         assert.entityCount('Transfer', 1);
         assert.fieldEquals('Transfer', id, 'user', ALICE.toHexString());
@@ -104,7 +101,7 @@ describe('Deposit & Withdraw', () => {
         assert.fieldEquals('Transfer', id, 'transferType', 'Withdraw');
     });
 
-    test('Should increment the deposit amount for each currency', () => {
+    test('Should create deposit for currency', () => {
         const amount1 = BigInt.fromI32(10000000);
         const amount2 = BigInt.fromI32(20000000);
         const amount3 = BigInt.fromI32(50000000);
@@ -120,24 +117,37 @@ describe('Deposit & Withdraw', () => {
         handleDeposit(event2);
         handleDeposit(event3);
 
-        assert.fieldEquals('User', ALICE.toHexString(), 'depositETH', '0');
+        assert.notInStore(
+            'Deposit',
+            ALICE.toHexString() + ':' + ccy.toString()
+        );
         assert.fieldEquals(
-            'User',
-            ALICE.toHexString(),
-            'depositWFIL',
+            'Deposit',
+            ALICE.toHexString() + ':' + wfil.toString(),
+            'amount',
             amount1.toString()
         );
         assert.fieldEquals(
-            'User',
-            ALICE.toHexString(),
-            'depositUSDC',
+            'Deposit',
+            ALICE.toHexString() + ':' + usdc.toString(),
+            'amount',
             amount2.toString()
         );
         assert.fieldEquals(
-            'User',
-            ALICE.toHexString(),
-            'depositAXLFIL',
+            'Deposit',
+            ALICE.toHexString() + ':' + axlFIL.toString(),
+            'amount',
             amount3.toString()
         );
+
+        const event4 = createDepositEvent(ALICE, axlFIL, amount2);
+        handleDeposit(event4);
+
+        assert.fieldEquals(
+            'Deposit',
+            ALICE.toHexString() + ':' + axlFIL.toString(),
+            'amount',
+            (amount3 + amount2).toString()
+        );
     });
 });