Initial implementation of AttestationProducer

validator_client/src/block_producer/beacon_node_block.rs

@@ -0,0 +1,31 @@
+use types::{BeaconBlock, Signature, Slot};
+#[derive(Debug, PartialEq, Clone)]
+pub enum BeaconNodeError {
+    RemoteFailure(String),
+    DecodeFailure,
+}
+
+#[derive(Debug, PartialEq, Clone)]
+pub enum PublishOutcome {
+    Valid,
+    InvalidBlock(String),
+    InvalidAttestation(String),
+}
+
+/// Defines the methods required to produce and publish blocks on a Beacon Node. Abstracts the
+/// actual beacon node.
+pub trait BeaconNodeBlock: Send + Sync {
+    /// Request that the node produces a block.
+    ///
+    /// Returns Ok(None) if the Beacon Node is unable to produce at the given slot.
+    fn produce_beacon_block(
+        &self,
+        slot: Slot,
+        randao_reveal: &Signature,
+    ) -> Result<Option<BeaconBlock>, BeaconNodeError>;
+
+    /// Request that the node publishes a block.
+    ///
+    /// Returns `true` if the publish was successful.
+    fn publish_beacon_block(&self, block: BeaconBlock) -> Result<PublishOutcome, BeaconNodeError>;
+}