From 63ed99d4d6d0006b0a17de67ac787d63aa70f696 Mon Sep 17 00:00:00 2001
From: Mark Sinclair <mmsinclair@users.noreply.github.com>
Date: Wed, 31 Jan 2024 11:46:57 +0000
Subject: [PATCH] Add config to run the block signing in monitoring mode only.
 Will write 0's as the hash for rewarding.

---
 nym-validator-rewarder/src/cli/mod.rs         | 3 +++
 nym-validator-rewarder/src/config/mod.rs      | 6 +++++-
 nym-validator-rewarder/src/config/override.rs | 4 ++++
 nym-validator-rewarder/src/config/template.rs | 5 ++++-
 nym-validator-rewarder/src/rewarder/mod.rs    | 5 +++++
 5 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/nym-validator-rewarder/src/cli/mod.rs b/nym-validator-rewarder/src/cli/mod.rs
index 7fe1dc8117..f9572442e1 100644
--- a/nym-validator-rewarder/src/cli/mod.rs
+++ b/nym-validator-rewarder/src/cli/mod.rs
@@ -53,6 +53,9 @@ pub struct ConfigOverridableArgs {
     #[clap(long)]
     pub disable_block_signing_rewarding: bool,
 
+    #[clap(long)]
+    pub block_signing_monitoring_only: bool,
+
     #[clap(long)]
     pub disable_credential_issuance_rewarding: bool,
 
diff --git a/nym-validator-rewarder/src/config/mod.rs b/nym-validator-rewarder/src/config/mod.rs
index 49571394ad..23dec58a4d 100644
--- a/nym-validator-rewarder/src/config/mod.rs
+++ b/nym-validator-rewarder/src/config/mod.rs
@@ -240,9 +240,12 @@ pub struct NyxdScraper {
 
 #[derive(Debug, Clone, Deserialize, Serialize)]
 pub struct BlockSigning {
-    /// Specifies whether credential issuance for block signing is enabled.
+    /// Specifies whether rewards for block signing is enabled.
     pub enabled: bool,
 
+    /// Specifies whether to only monitor and not send rewards.
+    pub monitor_only: bool,
+
     /// List of validators that will receive rewards for block signing.
     /// If not on the list, the validator will be treated as if it had 0 voting power.
     pub whitelist: Vec<AccountId>,
@@ -252,6 +255,7 @@ impl Default for BlockSigning {
     fn default() -> Self {
         BlockSigning {
             enabled: true,
+            monitor_only: false,
             whitelist: vec![],
         }
     }
diff --git a/nym-validator-rewarder/src/config/override.rs b/nym-validator-rewarder/src/config/override.rs
index 01a42ef739..f16c6555fb 100644
--- a/nym-validator-rewarder/src/config/override.rs
+++ b/nym-validator-rewarder/src/config/override.rs
@@ -14,6 +14,10 @@ impl ConfigOverride for ConfigOverridableArgs {
             config.block_signing.enabled = false
         }
 
+        if self.block_signing_monitoring_only {
+            config.block_signing.monitor_only = true
+        }
+
         if self.disable_credential_issuance_rewarding {
             config.issuance_monitor.enabled = false
         }
diff --git a/nym-validator-rewarder/src/config/template.rs b/nym-validator-rewarder/src/config/template.rs
index 89eb22b933..7e10b44d99 100644
--- a/nym-validator-rewarder/src/config/template.rs
+++ b/nym-validator-rewarder/src/config/template.rs
@@ -38,9 +38,12 @@ credential_verification = {{ rewarding.ratios.credential_verification }}
     
     
 [block_signing]
-# Specifies whether credential issuance for block signing is enabled.
+# Specifies whether rewarding for block signing is enabled.
 enabled = {{ block_signing.enabled }}
 
+# Specifies whether to only monitor and not send rewards.
+monitor_only = {{ block_signing.monitor_only }}
+
 # List of validators that will receive rewards for block signing.
 # If not on the list, the validator will be treated as if it had 0 voting power.
 whitelist = [
diff --git a/nym-validator-rewarder/src/rewarder/mod.rs b/nym-validator-rewarder/src/rewarder/mod.rs
index f586167c09..216ee8eee8 100644
--- a/nym-validator-rewarder/src/rewarder/mod.rs
+++ b/nym-validator-rewarder/src/rewarder/mod.rs
@@ -209,6 +209,11 @@ impl Rewarder {
         &self,
         amounts: Vec<(AccountId, Vec<Coin>)>,
     ) -> Result<Hash, NymRewarderError> {
+        if self.config.block_signing.monitor_only {
+            info!("skipping sending rewards, monitoring mode only");
+            return Ok(Hash::Sha256([0u8; 32]));
+        }
+
         info!("sending rewards");
         self.nyxd_client
             .send_rewards(self.current_epoch, amounts)