From bbc9b9476dad43b31dd3020cd404093fe8170044 Mon Sep 17 00:00:00 2001
From: matst80 <mats.tornberg@gmail.com>
Date: Sun, 10 Nov 2024 00:14:29 +0100
Subject: [PATCH] only save state if has changes

---
 main.go | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/main.go b/main.go
index 3ad8e7f..07ab8da 100644
--- a/main.go
+++ b/main.go
@@ -53,16 +53,23 @@ type App struct {
 }
 
 func (a *App) Save() error {
+	hasChanges := false
 	for id, grain := range a.pool.GetGrains() {
 		if grain == nil {
 			continue
 		}
-		log.Printf("Saving grain %s\n", id)
-		err := a.storage.Store(id, grain)
-		if err != nil {
-			log.Printf("Error saving grain %s: %v\n", id, err)
+		if grain.GetLastChange() > a.storage.LastSaves[id] {
+			hasChanges = true
+			log.Printf("Saving grain %s\n", id)
+			err := a.storage.Store(id, grain)
+			if err != nil {
+				log.Printf("Error saving grain %s: %v\n", id, err)
+			}
 		}
 	}
+	if !hasChanges {
+		return nil
+	}
 	return a.storage.saveState()
 }