add more veOcean stats

schema.graphql

@@ -338,6 +338,9 @@ type GlobalStatistic @entity {
     "number of dispensers created"
     dispenserCount: Int!
 
+    "total ocean locked in veOcean"
+    totalOceanLocked:BigDecimal!
+   
    "current version"
     version: String
 }
@@ -504,6 +507,7 @@ type VeDeposit @entity {
   block: Int!
   tx: String!
   veOcean: VeOCEAN!
+  totalOceanLocked:BigDecimal!
 }
 
 

src/mappings/utils/globalUtils.ts

@@ -19,6 +19,7 @@ export function getGlobalStats(): GlobalStatistic {
     globalStats.datatokenCount = 0
     globalStats.dispenserCount = 0
     globalStats.nftCount = 0
+    globalStats.totalOceanLocked = 0
     globalStats.save()
   }
   return globalStats
@@ -33,6 +34,15 @@ export function getOPC(): OPC {
   return globalStats
 }
 
+export function getTotalOceanLocked(): BigDecimal {
+  let globalStats = OPC.load(GLOBAL_ID)
+  if (!globalStats) {
+    globalStats = new OPC(GLOBAL_ID)
+    globalStats.save()
+  }
+  return globalStats.totalOceanLocked
+}
+
 export function getTemplates(): Template {
   let templates = Template.load(GLOBAL_ID)
   if (!templates) {
@@ -42,6 +52,12 @@ export function getTemplates(): Template {
   return templates
 }
 
+export function updateTotalOceanLocked(amount: BigDecimal): void {
+  const globalStats = getGlobalStats()
+  globalStats.totalOceanLocked = amount
+  globalStats.save()
+}
+
 export function addOrder(): void {
   const globalStats = getGlobalStats()
   globalStats.orderCount = globalStats.orderCount + 1

src/mappings/veOCEAN.ts

@@ -2,6 +2,10 @@ import { BigDecimal, BigInt } from '@graphprotocol/graph-ts'
 import { Deposit, Supply, Withdraw } from '../@types/veOCEAN/veOCEAN'
 import { weiToDecimal } from './utils/generic'
 import { getDeposit, getveOCEAN } from './utils/veUtils'
+import {
+  getTotalOceanLocked,
+  updateTotalOceanLocked
+} from './utils/globalUtils'
 
 export function handleDeposit(event: Deposit): void {
   const provider = event.params.provider
@@ -9,7 +13,7 @@ export function handleDeposit(event: Deposit): void {
   const locktime = event.params.locktime
   const type = event.params.type
   const ts = event.params.ts
-
+  const totalOceanLocked = getTotalOceanLocked()
   const veOCEAN = getveOCEAN(provider.toHex())
   // Create new Deposit entity
   const deposit = getDeposit(
@@ -28,6 +32,10 @@ export function handleDeposit(event: Deposit): void {
   deposit.tx = event.transaction.hash.toHex()
   deposit.sender = event.transaction.from.toHex()
   deposit.veOcean = veOCEAN.id
+
+  deposit.totalOceanLocked = totalOceanLocked.plus(deposit.value)
+  updateTotalOceanLocked(deposit.totalOceanLocked)
+
   deposit.save()
   // --------------------------------------------
 
@@ -39,6 +47,7 @@ export function handleDeposit(event: Deposit): void {
 }
 export function handleSupply(event: Supply): void {}
 export function handleWithdraw(event: Withdraw): void {
+  const totalOceanLocked = getTotalOceanLocked()
   const provider = event.params.provider
   const value = event.params.value
   const ts = event.params.ts
@@ -61,6 +70,8 @@ export function handleWithdraw(event: Withdraw): void {
   deposit.tx = event.transaction.hash.toHex()
   deposit.sender = event.transaction.from.toHex()
   deposit.veOcean = veOCEAN.id
+  deposit.totalOceanLocked = totalOceanLocked.plus(deposit.value) // it's already negated above
+  updateTotalOceanLocked(deposit.totalOceanLocked)
   deposit.save()
   // --------------------------------------------