feat: basic implementation for ThawRequests

Author: juanmardefago

schema.graphql

@@ -847,28 +847,45 @@ type Provision @entity {
 
   tokensProvisioned: BigInt!
 
+  "Timestamp when the provision was created"
+  createdAt: BigInt!
+
   "Service provider tokens that are being thawed (and will stop being slashable soon)"
   tokensThawing: BigInt!
 
-  "Shares representing the thawing tokens"
-  sharesThawing: BigInt!
-
   "Max amount that can be taken by the verifier when slashing, expressed in parts-per-million of the amount slashed"
   maxVerifierCut: Int!
 
-  "Time, in seconds, tokens must thaw before being withdrawn"
-  thawingPeriod: BigInt!
-
-  "Timestamp when the provision was created"
-  createdAt: BigInt!
-
   "Pending value for maxVerifierCut. Verifier needs to accept it before it becomes active"
   maxVerifierCutPending: Int!
 
+  "Time, in seconds, tokens must thaw before being withdrawn"
+  thawingPeriod: BigInt!
+
   "Pending value for thawingPeriod. Verifier needs to accept it before it becomes active"
   thawingPeriodPending: BigInt!
 }
 
+type ThawRequest @entity {
+  id: ID!
+
+  indexer: Indexer!
+
+  service: DataService!
+
+  owner: GraphAccount!
+
+  "Shares representing the thawing tokens"
+  shares: BigInt!
+
+  "Tokens thawed"
+  tokens: BigInt!
+
+  thawingUntil: BigInt!
+
+  valid: Boolean
+}
+
 """
 A state channel Allocation representing a single Indexer-SubgraphDeployment stake
 """

src/mappings/horizonStaking.ts

@@ -1,8 +1,8 @@
 import { BigInt, log } from '@graphprotocol/graph-ts'
 import { addresses } from '../../config/addresses.template'
 import { HorizonStakeDeposited, HorizonStakeLocked, HorizonStakeWithdrawn, TokensDeprovisioned } from '../types/HorizonStaking/HorizonStaking'
-import { Indexer, GraphNetwork } from '../types/schema'
-import { calculateCapacities, createOrLoadDataService, createOrLoadEpoch, createOrLoadGraphNetwork, createOrLoadIndexer, createOrLoadProvision, updateAdvancedIndexerMetrics } from './helpers/helpers'
+import { Indexer, GraphNetwork, ThawRequest } from '../types/schema'
+import { calculateCapacities, createOrLoadDataService, createOrLoadEpoch, createOrLoadGraphAccount, createOrLoadGraphNetwork, createOrLoadIndexer, createOrLoadProvision, updateAdvancedIndexerMetrics } from './helpers/helpers'
 import {
     ProvisionCreated,
     ProvisionIncreased,
@@ -178,17 +178,23 @@ export function handleProvisionSlashed(event: ProvisionSlashed): void {
 }
 
 export function handleThawRequestCreated(event: ThawRequestCreated): void {
-    // To Do
+    let dataService = createOrLoadDataService(event.params.verifier)
+    let indexer = Indexer.load(event.params.serviceProvider.toHexString())!
+    let owner = createOrLoadGraphAccount(event.params.owner, event.block.timestamp)
+
+    let request = new ThawRequest(event.params.thawRequestId.toHexString())
+    request.indexer = indexer.id
+    request.service = dataService.id
+    request.owner = owner.id
+    request.shares = event.params.shares
+    request.tokens = BigInt.fromI32(0)
+    request.thawingUntil = event.params.thawingUntil
+    request.save()
 }
 
 export function handleThawRequestFulfilled(event: ThawRequestFulfilled): void {
-    // To Do
-}
-
-export function handleThawRequestsFulfilled(event: ThawRequestsFulfilled): void {
-    // To Do
-}
-
-export function handleThawingPeriodCleared(event: ThawingPeriodCleared): void {
-    // To Do
-}
+    let request = ThawRequest.load(event.params.thawRequestId.toHexString())
+    request.tokens = event.params.tokens
+    request.valid = event.params.valid
+    request.save()
+}

subgraph.template.yaml

@@ -423,10 +423,6 @@ dataSources:
           handler: handleThawRequestCreated
         - event: ThawRequestFulfilled(indexed bytes32,uint256,uint256,uint64,bool)
           handler: handleThawRequestFulfilled
-        - event: ThawRequestsFulfilled(indexed address,indexed address,indexed address,uint256,uint256,uint8)
-          handler: handleThawRequestsFulfilled
-        - event: ThawingPeriodCleared()
-          handler: handleThawingPeriodCleared
   - kind: ethereum/contract
     name: Curation
     network: {{network}}