Display copied delegations in bonding section-dapp

The owner of copied delegation need to be able to add eth to bonding.

solidity/dashboard/src/services/tbtc-authorization.service.js

@@ -1,10 +1,8 @@
 import { contractService } from "./contracts.service"
 import {
   TOKEN_STAKING_CONTRACT_NAME,
-  TOKEN_GRANT_CONTRACT_NAME,
   BONDED_ECDSA_KEEP_FACTORY_CONTRACT_NAME,
   KEEP_BONDING_CONTRACT_NAME,
-  MANAGED_GRANT_FACTORY_CONTRACT_NAME,
 } from "../constants/constants"
 import { add } from "../utils/arithmetics.utils"
 import { isEmptyArray } from "../utils/array.utils"
@@ -13,12 +11,14 @@ import {
   getBondedECDSAKeepFactoryAddress,
   getTBTCSystemAddress,
   ContractsLoaded,
+  Web3Loaded,
 } from "../contracts"
 import web3Utils from "web3-utils"
 import {
   getOperatorsOfAuthorizer,
   getOperatorsOfOwner,
 } from "./token-staking.service"
+import { tokenGrantsService } from "./token-grants.service"
 
 const bondedECDSAKeepFactoryAddress = getBondedECDSAKeepFactoryAddress()
 const tBTCSystemAddress = getTBTCSystemAddress()
@@ -210,71 +210,57 @@ const fetchCreatedBonds = async (
   return createdBonds
 }
 
-const fetchManagedGrantAddresses = async (web3Context, lookupAddress) => {
-  return (
-    await contractService.getPastEvents(
-      web3Context,
-      MANAGED_GRANT_FACTORY_CONTRACT_NAME,
-      "ManagedGrantCreated",
-      {
-        fromBlock:
-          CONTRACT_DEPLOY_BLOCK_NUMBER[MANAGED_GRANT_FACTORY_CONTRACT_NAME],
-        filter: { grantee: lookupAddress },
-      }
-    )
-  ).map((_) => _.returnValues.grantAddress)
-}
-
 const fetchOperatorsOf = async (web3Context, yourAddress) => {
-  // operatorAddress -> { managedGrantInfo: { address }, isWithdrawableForOperator: true  }
+  const {
+    eth: { defaultAccount },
+  } = await Web3Loaded
+  const { grantContract } = await ContractsLoaded
+  /**
+   * Operator address to details.
+   * @type {Map<string, { managedGrantInfo: { address: string }, isWithdrawableForOperator: boolean }>}
+   */
   const operators = new Map()
 
-  // operators of grantee (yourAddress)
-  const operatorsOfGrantee = await contractService.makeCall(
+  // operators of authorizer
+  const operatorsOfAuthorizer = await getOperatorsOfAuthorizer(
     web3Context,
-    TOKEN_GRANT_CONTRACT_NAME,
-    "getGranteeOperators",
-    yourAddress
+    web3Context.yourAddress
   )
+  for (let i = 0; i < operatorsOfAuthorizer.length; i++) {
+    operators.set(web3Utils.toChecksumAddress(operatorsOfAuthorizer[i]), {
+      managedGrantInfo: {},
+      isWithdrawableForOperator: false,
+    })
+  }
+
+  // operators of grantee (yourAddress)
+  const operatorsOfGrantee = await getGranteeOperators()
+
   for (let i = 0; i < operatorsOfGrantee.length; i++) {
     operators.set(web3Utils.toChecksumAddress(operatorsOfGrantee[i]), {
       managedGrantInfo: {},
       isWithdrawableForOperator: true,
     })
   }
 
-  const managedGrantAddresses = await fetchManagedGrantAddresses(
-    web3Context,
-    yourAddress
-  )
-  for (const managedGrantAddress of managedGrantAddresses) {
+  const managedGrants = await tokenGrantsService.fetchManagedGrants()
+
+  for (const managedGrant of managedGrants) {
+    const managedGrantAddress =
+      managedGrant.managedGrantContractInstance.options.address
     // operators of grantee (managedGrantAddress)
-    const operatorsOfManagedGrant = await contractService.makeCall(
-      web3Context,
-      TOKEN_GRANT_CONTRACT_NAME,
-      "getGranteeOperators",
-      managedGrantAddress
-    )
-    for (const operatorOfManagedGrant of operatorsOfManagedGrant) {
+    const operatorsOfManagedGrant = await grantContract.methods
+      .getGranteeOperators(managedGrantAddress)
+      .call()
+    const allOperators = await getAllGranteeOperators(operatorsOfManagedGrant)
+    for (const operatorOfManagedGrant of allOperators) {
       operators.set(web3Utils.toChecksumAddress(operatorOfManagedGrant), {
         managedGrantInfo: { address: managedGrantAddress },
         isWithdrawableForOperator: true,
       })
     }
   }
 
-  // operators of authorizer
-  const operatorsOfAuthorizer = await getOperatorsOfAuthorizer(
-    web3Context,
-    web3Context.yourAddress
-  )
-  for (let i = 0; i < operatorsOfAuthorizer.length; i++) {
-    operators.set(web3Utils.toChecksumAddress(operatorsOfAuthorizer[i]), {
-      managedGrantInfo: {},
-      isWithdrawableForOperator: false,
-    })
-  }
-
   // operators of owner (yourAddress as owner)
   const operatorsOfOwner = await getOperatorsOfOwner(yourAddress)
 
@@ -285,6 +271,20 @@ const fetchOperatorsOf = async (web3Context, yourAddress) => {
     })
   }
 
+  const copiedOperatorsFromLiquidTokens = await getCopiedOperatorsFromLiquidTokens(
+    defaultAccount,
+    Array.from(operators.keys())
+  )
+  for (let i = 0; i < copiedOperatorsFromLiquidTokens.length; i++) {
+    operators.set(
+      web3Utils.toChecksumAddress(copiedOperatorsFromLiquidTokens[i]),
+      {
+        managedGrantInfo: {},
+        isWithdrawableForOperator: true,
+      }
+    )
+  }
+
   const ownerAddress = await contractService.makeCall(
     web3Context,
     TOKEN_STAKING_CONTRACT_NAME,
@@ -330,6 +330,112 @@ const fetchAvailableAmount = async (web3Context, operator) => {
   )
 }
 
+const getGranteeOperators = async () => {
+  const web3 = await Web3Loaded
+  const { defaultAccount } = web3.eth
+  const { grantContract } = await ContractsLoaded
+
+  // Fetch all grantee operators. These are not all grantee operators,
+  // since `TokenGrant` contract does not know about escrow redelagtion.
+  const operatorsOfGrantee = await grantContract.methods
+    .getGranteeOperators(defaultAccount)
+    .call()
+
+  return await getAllGranteeOperators(operatorsOfGrantee)
+}
+
+const getAllGranteeOperators = async (operatorsOfGrantee) => {
+  const { stakingContract, tokenStakingEscrow } = await ContractsLoaded
+
+  if (isEmptyArray(operatorsOfGrantee)) {
+    return []
+  }
+
+  // We need to take into account that the delegation from a grant can be redelegated to a new operator.
+  const grantIdsToScan = (
+    await tokenStakingEscrow.getPastEvents("DepositRedelegated", {
+      fromBlock: CONTRACT_DEPLOY_BLOCK_NUMBER.tokenStakingEscrow,
+      filter: {
+        previousOperator: operatorsOfGrantee,
+      },
+    })
+  ).map((_) => _.returnValues.grantId)
+
+  let activeOperators = []
+  const newOperators = []
+  const previousOperators = []
+  const redelagations = isEmptyArray(grantIdsToScan)
+    ? []
+    : await tokenStakingEscrow.getPastEvents("DepositRedelegated", {
+        fromBlock: CONTRACT_DEPLOY_BLOCK_NUMBER.tokenStakingEscrow,
+        filter: {
+          grantId: grantIdsToScan,
+        },
+      })
+
+  redelagations.forEach((redelegation) => {
+    newOperators.push(redelegation.returnValues.newOperator)
+    previousOperators.push(redelegation.returnValues.previousOperator)
+  })
+
+  newOperators.forEach((operator) => {
+    const indexOf = previousOperators.indexOf(operator)
+    if (indexOf > -1) {
+      previousOperators.splice(indexOf, 1)
+    } else {
+      activeOperators.push(operator)
+    }
+  })
+
+  // Filter out obsolete operators from `TokenGrant::getGranteeOperators`.
+  const activeOperatorsFromTokenGrant = operatorsOfGrantee.filter(
+    (operator) => !previousOperators.includes(operator)
+  )
+  activeOperators = activeOperators.concat(activeOperatorsFromTokenGrant)
+
+  return isEmptyArray(activeOperators)
+    ? activeOperators
+    : // Scan `OperatorStaked` events to make sure we only return operators, from a "new" `TokenStaking`,
+      // since `TokenGrant` stores the old grantee-operator relationship.
+      (
+        await stakingContract.getPastEvents("OperatorStaked", {
+          fromBlock: CONTRACT_DEPLOY_BLOCK_NUMBER.stakingContract,
+          filter: { operator: activeOperators },
+        })
+      ).map((_) => _.returnValues.operator)
+}
+
+const getCopiedOperatorsFromLiquidTokens = async (
+  ownerOrGrantee,
+  operatorsToFilterOut
+) => {
+  const { stakingPortBackerContract } = await ContractsLoaded
+
+  const operatorsToCheck = (
+    await stakingPortBackerContract.getPastEvents("StakeCopied", {
+      fromBlock: CONTRACT_DEPLOY_BLOCK_NUMBER.stakingPortBackerContract,
+      filter: { owner: ownerOrGrantee },
+    })
+  )
+    .map((_) => _.returnValues.operator)
+    .filter(
+      (operatorAddress) => !operatorsToFilterOut.includes(operatorAddress)
+    )
+
+  // No operators.
+  if (isEmptyArray(operatorsToCheck)) {
+    return []
+  }
+
+  // We only want operators for whom the delegation has not been paid back.
+  const operatorsOfPortBacker = await getOperatorsOfOwner(
+    stakingPortBackerContract.options.address,
+    operatorsToCheck
+  )
+
+  return operatorsOfPortBacker
+}
+
 export const tbtcAuthorizationService = {
   fetchTBTCAuthorizationData,
   fetchBondingData,