day20, modules state comparations

day20/pulsePropagation.go

@@ -12,6 +12,7 @@ func Run() int {
 
 	filename := "day20/example2"
 	modules := ReadModules(filename)
+	InitStuffs(modules)
 	log.Print("got modules:\n", modules)
 
 	low, high := PropagateButtonPress(modules)
@@ -97,3 +98,14 @@ func InitStuffs(allModules map[string]Module) {
 	}
 
 }
+
+func ModulesState(allModules map[string]Module) string {
+	// relying on printing of map values to be ordered by key
+	// https://stackoverflow.com/a/54524991/2788805
+	states := make(map[string]string)
+	for name, module := range allModules {
+		states[name] = module.StateSnapshot()
+	}
+
+	return fmt.Sprint(states)
+}