Add RpcClient::get_stake_activation() (bp #16165) (#16294)

* Add RpcClient::get_stake_activation()

(cherry picked from commit 5791b95b17)

# Conflicts:
#	client/src/rpc_client.rs

* Fix conflicts

* Derive PartialEq for StakeActivationState

Co-authored-by: Michael Vines <mvines@gmail.com>
Co-authored-by: Tyera Eulberg <tyera@solana.com>

client/src/rpc_client.rs

@@ -7,7 +7,7 @@ use crate::{
         RpcConfirmedBlockConfig, RpcConfirmedTransactionConfig,
         RpcGetConfirmedSignaturesForAddress2Config, RpcLargestAccountsConfig,
         RpcProgramAccountsConfig, RpcSendTransactionConfig, RpcSimulateTransactionConfig,
-        RpcTokenAccountsFilter,
+        RpcStakeConfig, RpcTokenAccountsFilter,
     },
     rpc_request::{RpcError, RpcRequest, RpcResponseErrorData, TokenAccountsFilter},
     rpc_response::*,
@@ -24,7 +24,7 @@ use solana_account_decoder::{
 use solana_sdk::{
     account::Account,
     clock::{
-        Slot, UnixTimestamp, DEFAULT_TICKS_PER_SECOND, DEFAULT_TICKS_PER_SLOT,
+        Epoch, Slot, UnixTimestamp, DEFAULT_TICKS_PER_SECOND, DEFAULT_TICKS_PER_SLOT,
         MAX_HASH_AGE_IN_SECONDS,
     },
     commitment_config::{CommitmentConfig, CommitmentLevel},
@@ -421,6 +421,23 @@ impl RpcClient {
             })
     }
 
+    pub fn get_stake_activation(
+        &self,
+        stake_account: Pubkey,
+        epoch: Option<Epoch>,
+    ) -> ClientResult<RpcStakeActivation> {
+        self.send(
+            RpcRequest::GetStakeActivation,
+            json!([
+                stake_account.to_string(),
+                RpcStakeConfig {
+                    epoch,
+                    commitment: Some(self.commitment_config),
+                }
+            ]),
+        )
+    }
+
     pub fn supply(&self) -> RpcResult<RpcSupply> {
         self.supply_with_commitment(self.commitment_config)
     }

client/src/rpc_request.rs

@@ -44,6 +44,7 @@ pub enum RpcRequest {
     GetStorageTurn,
     GetStorageTurnRate,
     GetSlotsPerSegment,
+    GetStakeActivation,
     GetStoragePubkeysForSlot,
     GetSupply,
     GetTokenAccountBalance,
@@ -100,6 +101,7 @@ impl fmt::Display for RpcRequest {
             RpcRequest::GetSlot => "getSlot",
             RpcRequest::GetSlotLeader => "getSlotLeader",
             RpcRequest::GetSlotLeaders => "getSlotLeaders",
+            RpcRequest::GetStakeActivation => "getStakeActivation",
             RpcRequest::GetStorageTurn => "getStorageTurn",
             RpcRequest::GetStorageTurnRate => "getStorageTurnRate",
             RpcRequest::GetSlotsPerSegment => "getSlotsPerSegment",

client/src/rpc_response.rs

@@ -313,7 +313,7 @@ pub struct RpcSupply {
     pub non_circulating_accounts: Vec<String>,
 }
 
-#[derive(Serialize, Deserialize, Clone, Debug)]
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
 #[serde(rename_all = "camelCase")]
 pub enum StakeActivationState {
     Activating,