Merge pull request #35 from maticnetwork/new-delegator-unbond-events

Total stake to be reduced on unstake of a delegator or validator.
Owner Address change also to be recorded.

root/src/mappings/staking-info.ts

@@ -98,7 +98,8 @@ export function handleUnstaked(event: Unstaked): void {
 
   // update unstaked status
   validator.status = 1
-  validator.selfStake = BigInt.fromI32(0)
+  validator.totalStaked = event.params.total
+  validator.selfStake = validator.selfStake.minus(event.params.amount)
   validator.save()
 }
 
@@ -289,6 +290,7 @@ export function handleShareBurned(event: ShareBurned): void {
   let validator = loadValidator(event.params.validatorId)
 
   validator.delegatedStake = validator.delegatedStake.minus(event.params.amount)
+  validator.totalStaked = validator.totalStaked.minus(event.params.amount)
 
   validator.save()
   // -- Saving updation
@@ -312,6 +314,7 @@ export function handleShareBurnedWithId(event: ShareBurnedWithId): void {
   let validator = loadValidator(event.params.validatorId)
 
   validator.delegatedStake = validator.delegatedStake.minus(event.params.amount)
+  validator.totalStaked = validator.totalStaked.minus(event.params.amount)
 
   validator.save()
   // -- Saving updation

root/src/mappings/staking-nft.ts

@@ -1,5 +1,5 @@
 import { Transfer } from '../../generated/StakingNft/StakingNft'
-import { StakingNFTTransfer } from '../../generated/schema'
+import { StakingNFTTransfer, Validator } from '../../generated/schema'
 
 // To be invoked when staking NFT contracts Transfer event to be emitted
 //
@@ -26,7 +26,11 @@ export function handleTransfer(event: Transfer): void {
   let transactionHashes = entity.transactionHashes
   transactionHashes.push(event.transaction.hash)
   entity.transactionHashes = transactionHashes
+  let validatorId = 'validator:' + event.params.tokenId.toString()
+  let validator = Validator.load(validatorId)
+  validator.owner = event.params.to
 
   // save entity
   entity.save()
+  validator.save()
 }

root/subgraph.template.yaml

@@ -210,6 +210,7 @@ dataSources:
       language: wasm/assemblyscript
       entities:
         - StakingNFTTransfer
+        - Validator
       abis:
         - name: StakingNft
           file: ./abis/StakingNft.json