Restore seen accounts from storage

cmd/check.go

@@ -355,6 +355,12 @@ func runCheckCmd(cmd *cobra.Command, args []string) {
 		}
 	}
 
+	// Get all previously seen accounts
+	seenAccounts, err := blockStorage.GetAllAccountCurrency(ctx)
+	if err != nil {
+		log.Fatal(fmt.Errorf("%w: unable to get previously seen accounts", err))
+	}
+
 	reconcilerHelper := processor.NewReconcilerHelper(
 		blockStorage,
 	)
@@ -373,6 +379,7 @@ func runCheckCmd(cmd *cobra.Command, args []string) {
 		reconciler.WithReconcilerConcurrency(int(ReconcilerConcurrency)),
 		reconciler.WithLookupBalanceByBlock(LookupBalanceByBlock),
 		reconciler.WithInterestingAccounts(interestingAccounts),
+		reconciler.WithSeenAccounts(seenAccounts),
 	)
 
 	syncerHandler := processor.NewSyncerHandler(

internal/processor/reconciler_handler.go

@@ -17,7 +17,6 @@ package processor
 import (
 	"context"
 	"errors"
-	"fmt"
 
 	"github.com/coinbase/rosetta-cli/internal/logger"
 
@@ -108,8 +107,7 @@ func (h *ReconcilerHandler) NewAccountSeen(
 	account *types.AccountIdentifier,
 	currency *types.Currency,
 ) error {
-	fmt.Printf("New Account Seen: %s\n", types.PrettyPrintStruct(account))
-	// TODO: store somewhere...should be append only otherwise we will need to
-	// load arbitrarily large structures into memory for each addition.
+	// We don't persist new accounts here because we are already storing
+	// them when we set their balance in the internal/storage package.
 	return nil
 }