enabled gettickets for rpc+spv

internal/rpc/jsonrpc/methods.go

@@ -2564,10 +2564,7 @@ func (s *Server) getTickets(ctx context.Context, icmd any) (any, error) {
 	}
 
 	n, _ := s.walletLoader.NetworkBackend()
-	rpc, ok := n.(*dcrd.RPC)
-	if !ok {
-		return nil, errRPCClientNotConnected
-	}
+	rpc, _ := n.(*dcrd.RPC) // nil rpc indicates SPV to LiveTicketHashes
 
 	ticketHashes, err := w.LiveTicketHashes(ctx, rpc, cmd.IncludeImmature)
 	if err != nil {

wallet/tickets.go

@@ -17,7 +17,8 @@ import (
 )
 
 // LiveTicketHashes returns the hashes of live tickets that the wallet has
-// purchased or has voting authority for.
+// purchased or has voting authority for. rpcCaller can be nil if this is an
+// SPV wallet.
 func (w *Wallet) LiveTicketHashes(ctx context.Context, rpcCaller Caller, includeImmature bool) ([]chainhash.Hash, error) {
 	const op errors.Op = "wallet.LiveTicketHashes"
 
@@ -75,6 +76,11 @@ func (w *Wallet) LiveTicketHashes(ctx context.Context, rpcCaller Caller, include
 		return nil, errors.E(op, err)
 	}
 
+	// SPV wallet can't evaluate extraTickets.
+	if rpcCaller == nil {
+		return ticketHashes, nil
+	}
+
 	// Determine if the extra tickets are immature or possibly live.  Because
 	// these transactions are not part of the wallet's transaction history, dcrd
 	// must be queried for their blockchain height.  This functionality requires