set unsignable promilles in the config

Author: Ivo Georgiev

docs/config/dev.toml

@@ -8,6 +8,7 @@ msgs_find_limit = 10
 
 heartbeat_time = 30000
 health_threshold_promilles = 950
+health_unsignable_promilles = 750
 propagation_timeout = 1000
 
 list_timeout = 5000
@@ -24,4 +25,4 @@ creators_whitelist = []
 minimal_deposit = "0"
 minimal_fee = "0"
 token_address_whitelist = []
-validators_whitelist = []
+validators_whitelist = []

docs/config/prod.toml

@@ -10,6 +10,7 @@ msgs_find_limit = 10
 
 heartbeat_time = 60000
 health_threshold_promilles = 970
+health_unsignable_promilles = 770
 propagation_timeout = 3000
 
 list_timeout = 10000

primitives/src/config.rs

@@ -25,6 +25,7 @@ pub struct Config {
     pub channels_find_limit: u32,
     pub events_find_limit: u32,
     pub health_threshold_promilles: u32,
+    pub health_unsignable_promilles: u32,
     pub propagation_timeout: u32,
     pub fetch_timeout: u32,
     pub list_timeout: u32,

validator_worker/src/follower.rs

@@ -84,14 +84,13 @@ async fn on_new_state<'a, A: Adapter + 'static>(
     }
 
     let health = get_health(&iface.channel, balances, &proposed_balances);
-    // @TODO: don't hardcode that
-    if health < (750 as u64).into() {
+    if health < u64::from(iface.config.health_unsignable_promilles).into() {
         return Ok(on_error(&iface, &new_state, InvalidNewState::Health).await);
     }
 
     let signature = iface.adapter.sign(&new_state.state_root)?;
-    let health_threshold = u64::from(iface.config.health_threshold_promilles).into();
-    let is_healthy = &health >= &health_threshold;
+    let health_threshold = u64::from(iface.config.health_threshold_promilles);
+    let is_healthy = health >= health_threshold;
 
     iface
         .propagate(&[&MessageTypes::ApproveState(ApproveState {