chore(rln-relay-v2): use rln-v2 contract code (#2381)

* chore(rln-relay-v2): use rln-v2 contract code

* fix: reduced duped code

Makefile

@@ -119,7 +119,11 @@ clean: | clean-libbacktrace
 .PHONY: librln
 
 LIBRLN_BUILDDIR := $(CURDIR)/vendor/zerokit
+ifeq ($(RLN_V2),true)
+LIBRLN_VERSION := v0.4.1
+else
 LIBRLN_VERSION := v0.3.4
+endif
 
 ifeq ($(OS),Windows_NT)
 LIBRLN_FILE := rln.lib
@@ -134,6 +138,10 @@ $(LIBRLN_FILE):
 
 librln: | $(LIBRLN_FILE)
 	$(eval NIM_PARAMS += --passL:$(LIBRLN_FILE) --passL:-lm)
+ifeq ($(RLN_V2),true)
+	$(eval NIM_PARAMS += -d:rln_v2)
+endif
+
 
 clean-librln:
 	cargo clean --manifest-path vendor/zerokit/rln/Cargo.toml

tests/waku_rln_relay/test_rln_group_manager_onchain.nim

@@ -40,6 +40,7 @@ proc generateCredentials(rlnInstance: ptr RLN, n: int): seq[IdentityCredential]
 #  a util function used for testing purposes
 #  it deploys membership contract on Ganache (or any Eth client available on EthClient address)
 #  must be edited if used for a different contract than membership contract
+# <the difference between this and rln-v1 is that there is no need to deploy the poseidon hasher contract>
 proc uploadRLNContract*(ethClientAddress: string): Future[Address] {.async.} =
   let web3 = await newWeb3(ethClientAddress)
   debug "web3 connected to", ethClientAddress
@@ -53,27 +54,33 @@ proc uploadRLNContract*(ethClientAddress: string): Future[Address] {.async.} =
   let balance = await web3.provider.eth_getBalance(web3.defaultAccount, "latest")
   debug "Initial account balance: ", balance
 
-  # deploy the poseidon hash contract and gets its address
-  let
-    hasherReceipt = await web3.deployContract(PoseidonHasherCode)
-    hasherAddress = hasherReceipt.contractAddress.get
-  debug "hasher address: ", hasherAddress
+  when defined(rln_v2):
+    # deploy registry contract with its constructor inputs
+    let receipt = await web3.deployContract(RegistryContractCode)
+  else:
+    # deploy the poseidon hash contract and gets its address
+    let
+      hasherReceipt = await web3.deployContract(PoseidonHasherCode)
+      hasherAddress = hasherReceipt.contractAddress.get
+    debug "hasher address: ", hasherAddress
 
 
-  # encode registry contract inputs to 32 bytes zero-padded
-  let
-    hasherAddressEncoded = encode(hasherAddress).data
-    # this is the contract constructor input
-    contractInput = hasherAddressEncoded
+    # encode registry contract inputs to 32 bytes zero-padded
+    let
+      hasherAddressEncoded = encode(hasherAddress).data
+      # this is the contract constructor input
+      contractInput = hasherAddressEncoded
 
 
-  debug "encoded hasher address: ", hasherAddressEncoded
-  debug "encoded contract input:", contractInput
+    debug "encoded hasher address: ", hasherAddressEncoded
+    debug "encoded contract input:", contractInput
 
-  # deploy registry contract with its constructor inputs
-  let receipt = await web3.deployContract(RegistryContractCode,
-                                          contractInput = contractInput)
+    # deploy registry contract with its constructor inputs
+    let receipt = await web3.deployContract(RegistryContractCode,
+                                            contractInput = contractInput)
+  
   let contractAddress = receipt.contractAddress.get()
+
   debug "Address of the deployed registry contract: ", contractAddress
 
   let registryContract = web3.contractSender(WakuRlnRegistry, contractAddress)
@@ -88,7 +95,6 @@ proc uploadRLNContract*(ethClientAddress: string): Future[Address] {.async.} =
 
   return contractAddress
 
-
 proc createEthAccount(): Future[(keys.PrivateKey, Address)] {.async.} =
   let web3 = await newWeb3(EthClient)
   let accounts = await web3.provider.eth_accounts()