Added grandpa types to rust sdk (#642)

avail-rust/src/primitives/block/grandpa.rs

@@ -0,0 +1,43 @@
+use codec::{Codec, Decode};
+use serde::{Serialize, Serializer};
+
+use crate::avail::runtime_types::sp_consensus_grandpa::app::Public;
+
+#[derive(Decode)]
+pub struct AuthorityId(pub Public);
+
+impl Serialize for AuthorityId {
+	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+	where
+		S: Serializer,
+	{
+		let raw = hex::encode(self.0 .0 .0);
+		serializer.serialize_str(&raw)
+	}
+}
+
+pub type AuthorityIndex = u64;
+pub type AuthorityWeight = u64;
+pub type AuthorityList = Vec<(AuthorityId, AuthorityWeight)>;
+
+#[derive(Decode, Serialize)]
+pub struct ScheduledChange<N> {
+	/// The new authorities after the change, along with their respective weights.
+	pub next_authorities: AuthorityList,
+	/// The number of blocks to delay.
+	pub delay: N,
+}
+/// An consensus log item for GRANDPA.
+#[derive(Decode, Serialize)]
+pub enum ConsensusLog<N: Codec> {
+	#[codec(index = 1)]
+	ScheduledChange(ScheduledChange<N>),
+	#[codec(index = 2)]
+	ForcedChange(N, ScheduledChange<N>),
+	#[codec(index = 3)]
+	OnDisabled(AuthorityIndex),
+	#[codec(index = 4)]
+	Pause(N),
+	#[codec(index = 5)]
+	Resume(N),
+}

avail-rust/src/primitives/block/mod.rs

@@ -1,5 +1,6 @@
 pub mod extrinsics;
 pub mod extrinsics_params;
+pub mod grandpa;
 pub mod header;
 
 pub use extrinsics::AppUncheckedExtrinsic;