From 9a4f40626cbfdbd00a77125ac57a9c4a8bef4797 Mon Sep 17 00:00:00 2001
From: Pavel Karpy <p.karpy@yadro.com>
Date: Mon, 20 Mar 2023 19:58:11 +0300
Subject: [PATCH] [#128] IR: Do not try to emit GAS to nobody

Fix sending GAS to an empty extra wallets receivers list. Also, send GAS to
extra wallets even if netmap is empty.

Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
---
 .../processors/alphabet/process_emit.go       | 33 +++++++++++--------
 1 file changed, 19 insertions(+), 14 deletions(-)

diff --git a/pkg/innerring/processors/alphabet/process_emit.go b/pkg/innerring/processors/alphabet/process_emit.go
index 867d9622..10dcf079 100644
--- a/pkg/innerring/processors/alphabet/process_emit.go
+++ b/pkg/innerring/processors/alphabet/process_emit.go
@@ -50,15 +50,18 @@ func (ap *Processor) processEmit() {
 	}
 
 	nmNodes := networkMap.Nodes()
+	nmLen := len(nmNodes)
+	extraLen := len(ap.parsedWallets)
 
-	ln := len(nmNodes)
-	if ln == 0 {
-		ap.log.Debug("empty network map, do not emit gas")
+	ap.log.Debug("gas emission",
+		zap.Int("network_map", nmLen),
+		zap.Int("extra_wallets", extraLen))
 
+	if nmLen+extraLen == 0 {
 		return
 	}
 
-	gasPerNode := fixedn.Fixed8(ap.storageEmission / uint64(ln+len(ap.parsedWallets)))
+	gasPerNode := fixedn.Fixed8(ap.storageEmission / uint64(nmLen+extraLen))
 
 	for i := range nmNodes {
 		keyBytes := nmNodes[i].PublicKey()
@@ -81,16 +84,18 @@ func (ap *Processor) processEmit() {
 		}
 	}
 
-	err = ap.morphClient.BatchTransferGas(ap.parsedWallets, gasPerNode)
-	if err != nil {
-		receiversLog := make([]string, len(ap.parsedWallets))
-		for i, addr := range ap.parsedWallets {
-			receiversLog[i] = addr.StringLE()
+	if extraLen != 0 {
+		err = ap.morphClient.BatchTransferGas(ap.parsedWallets, gasPerNode)
+		if err != nil {
+			receiversLog := make([]string, extraLen)
+			for i, addr := range ap.parsedWallets {
+				receiversLog[i] = addr.StringLE()
+			}
+			ap.log.Warn("can't transfer gas to wallet",
+				zap.Strings("receivers", receiversLog),
+				zap.Int64("amount", int64(gasPerNode)),
+				zap.String("error", err.Error()),
+			)
 		}
-		ap.log.Warn("can't transfer gas to wallet",
-			zap.Strings("receivers", receiversLog),
-			zap.Int64("amount", int64(gasPerNode)),
-			zap.String("error", err.Error()),
-		)
 	}
 }