Update serai-coordinator-cosign to the new serai-client-serai

coordinator/cosign/Cargo.toml

@@ -22,6 +22,7 @@ blake2 = { version = "0.11.0-rc.0", default-features = false, features = ["alloc
 
 borsh = { version = "1", default-features = false, features = ["std", "derive", "de_strict_order"] }
 serai-abi = { path = "../../substrate/abi", default-features = false, features = ["std"] }
+serai-client-serai = { path = "../../substrate/client/serai", default-features = false }
 
 log = { version = "0.4", default-features = false, features = ["std"] }
 

coordinator/cosign/src/intend.rs

@@ -1,10 +1,13 @@
 use core::future::Future;
 use std::{sync::Arc, collections::HashMap};
 
+use blake2::{Digest, Blake2b256};
+
 use serai_abi::primitives::{
   balance::Amount, validator_sets::ExternalValidatorSet, address::SeraiAddress,
+  merkle::IncrementalUnbalancedMerkleTree,
 };
-use serai_client::Serai;
+use serai_client_serai::Serai;
 
 use serai_db::*;
 use serai_task::ContinuallyRan;
@@ -14,6 +17,7 @@ use crate::*;
 create_db!(
   CosignIntend {
     ScanCosignFrom: () -> u64,
+    BuildsUpon: () -> IncrementalUnbalancedMerkleTree,
   }
 );
 
@@ -40,9 +44,9 @@ async fn block_has_events_justifying_a_cosign(
     .await
     .map_err(|e| format!("{e:?}"))?
     .ok_or_else(|| "couldn't get block which should've been finalized".to_string())?;
-  let serai = serai.as_of(block.hash());
+  let serai = serai.as_of(block.header.hash()).await.map_err(|e| format!("{e:?}"))?;
 
-  if !serai.validator_sets().key_gen_events().await.map_err(|e| format!("{e:?}"))?.is_empty() {
+  if !serai.validator_sets().set_keys_events().await.map_err(|e| format!("{e:?}"))?.is_empty() {
     return Ok((block, HasEvents::Notable));
   }
 
@@ -66,7 +70,7 @@ impl<D: Db> ContinuallyRan for CosignIntendTask<D> {
     async move {
       let start_block_number = ScanCosignFrom::get(&self.db).unwrap_or(1);
       let latest_block_number =
-        self.serai.latest_finalized_block_number().await.map_err(|e| format!("{e:?}"))?.number();
+        self.serai.latest_finalized_block_number().await.map_err(|e| format!("{e:?}"))?;
 
       for block_number in start_block_number ..= latest_block_number {
         let mut txn = self.db.txn();
@@ -76,26 +80,35 @@ impl<D: Db> ContinuallyRan for CosignIntendTask<D> {
             .await
             .map_err(|e| format!("{e:?}"))?;
 
+        let mut builds_upon =
+          BuildsUpon::get(&txn).unwrap_or(IncrementalUnbalancedMerkleTree::new());
+
         // Check we are indexing a linear chain
-        if (block_number > 1) &&
-          (<[u8; 32]>::from(block.header.parent_hash) !=
-            SubstrateBlockHash::get(&txn, block_number - 1)
-              .expect("indexing a block but haven't indexed its parent"))
+        if block.header.builds_upon() !=
+          builds_upon.clone().calculate(serai_abi::BLOCK_HEADER_BRANCH_TAG)
         {
           Err(format!(
             "node's block #{block_number} doesn't build upon the block #{} prior indexed",
             block_number - 1
           ))?;
         }
-        let block_hash = block.hash();
+        let block_hash = block.header.hash();
         SubstrateBlockHash::set(&mut txn, block_number, &block_hash);
+        builds_upon.append(
+          serai_abi::BLOCK_HEADER_BRANCH_TAG,
+          Blake2b256::new_with_prefix([serai_abi::BLOCK_HEADER_LEAF_TAG])
+            .chain_update(block_hash.0)
+            .finalize()
+            .into(),
+        );
+        BuildsUpon::set(&mut txn, &builds_upon);
 
         let global_session_for_this_block = LatestGlobalSessionIntended::get(&txn);
 
         // If this is notable, it creates a new global session, which we index into the database
         // now
         if has_events == HasEvents::Notable {
-          let serai = self.serai.as_of(block_hash);
+          let serai = self.serai.as_of(block_hash).await.map_err(|e| format!("{e:?}"))?;
           let sets_and_keys = cosigning_sets(&serai).await?;
           let global_session =
             GlobalSession::id(sets_and_keys.iter().map(|(set, _key)| *set).collect());
@@ -109,7 +122,7 @@ impl<D: Db> ContinuallyRan for CosignIntendTask<D> {
             keys.insert(set.network, SeraiAddress::from(*key));
             let stake = serai
               .validator_sets()
-              .total_allocated_stake(set.network.into())
+              .current_stake(set.network.into())
               .await
               .map_err(|e| format!("{e:?}"))?
               .unwrap_or(Amount(0))

coordinator/cosign/src/lib.rs

@@ -11,6 +11,7 @@ use borsh::{BorshSerialize, BorshDeserialize};
 
 use serai_abi::{
   primitives::{
+    BlockHash,
     crypto::{Public, KeyPair},
     network_id::ExternalNetworkId,
     validator_sets::{Session, ExternalValidatorSet},
@@ -18,7 +19,7 @@ use serai_abi::{
   },
   Block,
 };
-use serai_client::{Serai, TemporalSerai};
+use serai_client_serai::{Serai, TemporalSerai};
 
 use serai_db::*;
 use serai_task::*;
@@ -86,7 +87,7 @@ create_db! {
     // The following are populated by the intend task and used throughout the library
 
     // An index of Substrate blocks
-    SubstrateBlockHash: (block_number: u64) -> [u8; 32],
+    SubstrateBlockHash: (block_number: u64) -> BlockHash,
     // A mapping from a global session's ID to its relevant information.
     GlobalSessions: (global_session: [u8; 32]) -> GlobalSession,
     // The last block to be cosigned by a global session.
@@ -124,7 +125,7 @@ async fn keys_for_network(
   network: ExternalNetworkId,
 ) -> Result<Option<(Session, KeyPair)>, String> {
   let Some(latest_session) =
-    serai.validator_sets().session(network.into()).await.map_err(|e| format!("{e:?}"))?
+    serai.validator_sets().current_session(network.into()).await.map_err(|e| format!("{e:?}"))?
   else {
     // If this network hasn't had a session declared, move on
     return Ok(None);
@@ -272,7 +273,10 @@ impl<D: Db> Cosigning<D> {
   }
 
   /// Fetch a cosigned Substrate block's hash by its block number.
-  pub fn cosigned_block(getter: &impl Get, block_number: u64) -> Result<Option<[u8; 32]>, Faulted> {
+  pub fn cosigned_block(
+    getter: &impl Get,
+    block_number: u64,
+  ) -> Result<Option<BlockHash>, Faulted> {
     if block_number > Self::latest_cosigned_block_number(getter)? {
       return Ok(None);
     }

coordinator/cosign/types/src/lib.rs

@@ -3,7 +3,7 @@
 //! Types used when cosigning Serai. For more info, please see `serai-cosign`.
 use borsh::{BorshSerialize, BorshDeserialize};
 
-use serai_primitives::{crypto::Public, network_id::ExternalNetworkId};
+use serai_primitives::{BlockHash, crypto::Public, network_id::ExternalNetworkId};
 
 /// The schnorrkel context to used when signing a cosign.
 pub const COSIGN_CONTEXT: &[u8] = b"/serai/coordinator/cosign";
@@ -16,7 +16,7 @@ pub struct CosignIntent {
   /// The number of the block to cosign.
   pub block_number: u64,
   /// The hash of the block to cosign.
-  pub block_hash: [u8; 32],
+  pub block_hash: BlockHash,
   /// If this cosign must be handled before further cosigns are.
   pub notable: bool,
 }
@@ -29,7 +29,7 @@ pub struct Cosign {
   /// The number of the block to cosign.
   pub block_number: u64,
   /// The hash of the block to cosign.
-  pub block_hash: [u8; 32],
+  pub block_hash: BlockHash,
   /// The actual cosigner.
   pub cosigner: ExternalNetworkId,
 }