feat: add LegacyRewardsManager to interfaces and horizon contracts

packages/interfaces/contracts/contracts/rewards/ILegacyRewardsManager.sol

@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+pragma solidity ^0.7.6 || 0.8.27;
+
+interface ILegacyRewardsManager {
+    function getRewards(address allocationID) external view returns (uint256);
+}
+

packages/interfaces/src/types/horizon.ts

@@ -12,6 +12,7 @@ import type {
   IRewardsManagerToolshed,
   IStaking,
   ISubgraphNFT,
+  ILegacyRewardsManager,
 } from '../../types'
 
 export {
@@ -28,4 +29,5 @@ export {
   IPaymentsEscrowToolshed as PaymentsEscrow,
   IRewardsManagerToolshed as RewardsManager,
   ISubgraphNFT as SubgraphNFT,
+  ILegacyRewardsManager as LegacyRewardsManager,
 }

packages/toolshed/src/deployments/horizon/address-book.ts

@@ -1,4 +1,4 @@
-import type { LegacyStaking } from '@graphprotocol/interfaces'
+import type { LegacyRewardsManager, LegacyStaking } from '@graphprotocol/interfaces'
 import { getInterface } from '@graphprotocol/interfaces'
 import { Provider, Signer } from 'ethers'
 import { Contract } from 'ethers'
@@ -35,6 +35,14 @@ export class GraphHorizonAddressBook extends AddressBook<number, GraphHorizonCon
         : contract) as unknown as LegacyStaking
     }
 
+    if (contracts.RewardsManager) {
+      // add LegacyRewardsManager alias using old ILegacyRewardsManager abi
+      const contract = new Contract(contracts.RewardsManager.target, getInterface('ILegacyRewardsManager'), signerOrProvider)
+      contracts.LegacyRewardsManager = (enableTxLogging
+        ? wrapTransactionCalls(contract, 'LegacyRewardsManager')
+        : contract) as unknown as LegacyRewardsManager
+    }
+
     return contracts
   }
 

packages/toolshed/src/deployments/horizon/contracts.ts

@@ -8,6 +8,7 @@ import type {
   L2Curation,
   L2GNS,
   L2GraphToken,
+  LegacyRewardsManager,
   LegacyStaking,
   PaymentsEscrow,
   RewardsManager,
@@ -61,6 +62,7 @@ export interface GraphHorizonContracts extends ContractList<GraphHorizonContract
   Curation: L2Curation
   GNS: L2GNS
   LegacyStaking: LegacyStaking
+  LegacyRewardsManager: LegacyRewardsManager
 }
 
 export type GraphHorizonContractName = (typeof GraphHorizonContractNameList)[number]