Replace INTERVALS_PER_SLOT with explicit slot component times (#7944)

https://github.com/ethereum/consensus-specs/pull/4476


  


Co-Authored-By: Barnabas Busa <barnabas.busa@ethereum.org>

Co-Authored-By: Eitan Seri- Levi <eserilev@gmail.com>

Co-Authored-By: Eitan Seri-Levi <eserilev@ucsc.edu>

Co-Authored-By: Michael Sproul <michaelsproul@users.noreply.github.com>

Co-Authored-By: Michael Sproul <michael@sigmaprime.io>

beacon_node/beacon_chain/src/canonical_head.rs

@@ -856,6 +856,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                 .as_utf8_lossy(),
             &self.slot_clock,
             self.event_handler.as_ref(),
+            &self.spec,
         );
 
         if is_epoch_transition || reorg_distance.is_some() {
@@ -1292,6 +1293,7 @@ fn observe_head_block_delays<E: EthSpec, S: SlotClock>(
     head_block_graffiti: String,
     slot_clock: &S,
     event_handler: Option<&ServerSentEventHandler<E>>,
+    spec: &ChainSpec,
 ) {
     let Some(block_time_set_as_head) = slot_clock.now_duration() else {
         // Practically unreachable: the slot clock's time should not be before the UNIX epoch.
@@ -1421,7 +1423,7 @@ fn observe_head_block_delays<E: EthSpec, S: SlotClock>(
 
         // Determine whether the block has been set as head too late for proper attestation
         // production.
-        let late_head = attestable_delay >= slot_clock.unagg_attestation_production_delay();
+        let late_head = attestable_delay >= spec.get_unaggregated_attestation_due();
 
         // If the block was enshrined as head too late for attestations to be created for it,
         // log a debug warning and increment a metric.