Insert missing entries in CopyVoteAccount

programs/validator-history/idl/validator_history.json

@@ -903,7 +903,7 @@
     {
       "code": 6001,
       "name": "InvalidEpochCredits",
-      "msg": "Invalid epoch credits, credits must be greater than previous credits"
+      "msg": "Invalid epoch credits, credits must exist and each value must be greater than previous credits"
     },
     {
       "code": 6002,
@@ -928,7 +928,7 @@
     {
       "code": 6006,
       "name": "NotEnoughVotingHistory",
-      "msg": "Not enough voting history to create account. Minimum 10 epochs required"
+      "msg": "Not enough voting history to create account. Minimum 5 epochs required"
     },
     {
       "code": 6007,
@@ -954,6 +954,11 @@
       "code": 6011,
       "name": "EpochTooLarge",
       "msg": "Epoch larger than 65535, cannot be stored"
+    },
+    {
+      "code": 6012,
+      "name": "DuplicateEpoch",
+      "msg": "Inserting duplicate epoch"
     }
   ]
 }

programs/validator-history/src/errors.rs

@@ -4,7 +4,9 @@ use anchor_lang::prelude::*;
 pub enum ValidatorHistoryError {
     #[msg("Account already reached proper size, no more allocations allowed")]
     AccountFullySized,
-    #[msg("Invalid epoch credits, credits must be greater than previous credits")]
+    #[msg(
+        "Invalid epoch credits, credits must exist and each value must be greater than previous credits"
+    )]
     InvalidEpochCredits,
     #[msg("Epoch is out of range of history")]
     EpochOutOfRange,
@@ -14,7 +16,7 @@ pub enum ValidatorHistoryError {
     GossipDataInvalid,
     #[msg("Unsupported IP Format, only IpAddr::V4 is supported")]
     UnsupportedIpFormat,
-    #[msg("Not enough voting history to create account. Minimum 10 epochs required")]
+    #[msg("Not enough voting history to create account. Minimum 5 epochs required")]
     NotEnoughVotingHistory,
     #[msg(
         "Gossip data too old. Data cannot be older than the last recorded timestamp for a field"
@@ -28,4 +30,6 @@ pub enum ValidatorHistoryError {
     SlotHistoryOutOfDate,
     #[msg("Epoch larger than 65535, cannot be stored")]
     EpochTooLarge,
+    #[msg("Inserting duplicate epoch")]
+    DuplicateEpoch,
 }

programs/validator-history/src/instructions/copy_vote_account.rs

@@ -31,6 +31,7 @@ pub fn handle_copy_vote_account(ctx: Context<CopyVoteAccount>) -> Result<()> {
     validator_history_account.set_commission_and_slot(epoch, commission, clock.slot)?;
 
     let epoch_credits = VoteStateVersions::deserialize_epoch_credits(&ctx.accounts.vote_account)?;
+    validator_history_account.insert_missing_entries(&epoch_credits)?;
     validator_history_account.set_epoch_credits(&epoch_credits)?;
 
     Ok(())