ICR retirement handler

KlimaDAO · Dec 6, 2023 · 81e0f5f · 81e0f5f
1 parent 8a79118
commit 81e0f5f
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Showing 2 changed files with 45 additions and 3 deletions.
diff --git a/polygon-digital-carbon/src/RetirementHandler.ts b/polygon-digital-carbon/src/RetirementHandler.ts
@@ -2,6 +2,7 @@ import { MCO2_ERC20_CONTRACT, ZERO_ADDRESS } from '../../lib/utils/Constants'
 import { ZERO_BI } from '../../lib/utils/Decimals'
 import { C3OffsetNFT, VCUOMinted } from '../generated/C3-Offset/C3OffsetNFT'
 import { CarbonOffset } from '../generated/MossCarbonOffset/CarbonChain'
+import { RetiredVintage } from '../generated/templates/ICRProjectToken/ICRProjectToken'
 import { Retired, Retired1 as Retired_1_4_0 } from '../generated/templates/ToucanCarbonOffsets/ToucanCarbonOffsets'
 import { incrementAccountRetirements, loadOrCreateAccount } from './utils/Account'
 import { loadCarbonCredit, loadOrCreateCarbonCredit } from './utils/CarbonCredit'
@@ -182,4 +183,40 @@ export function handleMossRetirement(event: CarbonOffset): void {
   incrementAccountRetirements(event.transaction.from)
 }
 
-// export function handleMossRetirementToMainnet(): void {}
+export function saveICRRetirement(event: RetiredVintage): void {
+  let credit = loadOrCreateCarbonCredit(event.address, 'ICR', event.params.tokenId)
+
+  credit.retired = credit.retired.plus(event.params.amount)
+  credit.save()
+
+  // Ensure account entities are created for all addresses
+  loadOrCreateAccount(event.params.account)
+  let sender = loadOrCreateAccount(event.transaction.from)
+
+  saveRetire(
+    event.transaction.from.concatI32(sender.totalRetirements),
+    event.address,
+    ZERO_ADDRESS,
+    'OTHER',
+    event.params.amount,
+    event.params.account,
+    '',
+    event.transaction.from,
+    '',
+    event.block.timestamp,
+    event.params.nftTokenId.toString()
+  )
+
+  incrementAccountRetirements(event.transaction.from)
+
+  recordProvenance(
+    event.transaction.hash,
+    event.address,
+    event.params.tokenId,
+    event.params.account,
+    ZERO_ADDRESS,
+    'RETIREMENT',
+    event.params.amount,
+    event.block.timestamp
+  )
+}
diff --git a/polygon-digital-carbon/src/TransferHandler.ts b/polygon-digital-carbon/src/TransferHandler.ts
@@ -13,7 +13,7 @@ import {
 import { loadOrCreateHolding } from './utils/Holding'
 import { ZERO_BI } from '../../lib/utils/Decimals'
 import { loadOrCreateAccount } from './utils/Account'
-import { saveToucanRetirement, saveToucanRetirement_1_4_0 } from './RetirementHandler'
+import { saveICRRetirement, saveToucanRetirement, saveToucanRetirement_1_4_0 } from './RetirementHandler'
 import { saveBridge } from './utils/Bridge'
 import { CarbonCredit, CrossChainBridge } from '../generated/schema'
 import { checkForCarbonPoolSnapshot, loadOrCreateCarbonPool } from './utils/CarbonPool'
@@ -105,7 +105,12 @@ export function handle1155CreditTransferBatch(event: TransferBatch): void {
   }
 }
 
-export function handleICRRetired(event: RetiredVintage): void {}
+export function handleICRRetired(event: RetiredVintage): void {
+  // Ignore retirements of zero value
+  if (event.params.amount == ZERO_BI) return
+
+  saveICRRetirement(event)
+}
 
 export function handleExPostCreated(event: ExPostCreated): void {
   updateICRCredit(event.address, event.params.tokenId, event.params.verificationPeriodStart)