Simplify subsystems data structure

modules/subsystems/module.go

@@ -61,7 +61,7 @@ func start() error {
 	}
 	for _, sub := range subsystems {
 		// add main module
-		sub.Dependencies = append(sub.Dependencies, statusFromModule(sub.module))
+		sub.Modules = append(sub.Modules, statusFromModule(sub.module))
 		// add dependencies
 		sub.addDependencies(sub.module, seen)
 	}
@@ -80,7 +80,7 @@ func (sub *Subsystem) addDependencies(module *modules.Module, seen map[string]st
 		_, ok := seen[module.Name]
 		if !ok {
 			// add dependency to modules
-			sub.Dependencies = append(sub.Dependencies, statusFromModule(module))
+			sub.Modules = append(sub.Modules, statusFromModule(module))
 			// mark as seen
 			seen[module.Name] = struct{}{}
 			// add further dependencies

modules/subsystems/subsystem.go

@@ -19,9 +19,8 @@ type Subsystem struct { //nolint:maligned // not worth the effort
 	Description string
 	module      *modules.Module
 
-	Status        *ModuleStatus
-	Dependencies  []*ModuleStatus
-	FailureStatus uint8
+	Modules       []*ModuleStatus
+	FailureStatus uint8 // summary: worst status
 
 	ToggleOptionKey string
 	toggleOption    *config.Option
@@ -103,10 +102,7 @@ func compareAndUpdateStatus(module *modules.Module, status *ModuleStatus) (chang
 func (sub *Subsystem) makeSummary() {
 	// find worst failing module
 	worstFailing := &ModuleStatus{}
-	if sub.Status.FailureStatus > worstFailing.FailureStatus {
-		worstFailing = sub.Status
-	}
-	for _, depStatus := range sub.Dependencies {
+	for _, depStatus := range sub.Modules {
 		if depStatus.FailureStatus > worstFailing.FailureStatus {
 			worstFailing = depStatus
 		}

modules/subsystems/subsystems.go

@@ -40,13 +40,10 @@ func Register(id, name, description string, module *modules.Module, configKeySpa
 
 	// create new
 	new := &Subsystem{
-		ID:          id,
-		Name:        name,
-		Description: description,
-		module:      module,
-
-		Status: statusFromModule(module),
-
+		ID:             id,
+		Name:           name,
+		Description:    description,
+		module:         module,
 		toggleOption:   option,
 		ConfigKeySpace: configKeySpace,
 	}
@@ -89,12 +86,7 @@ func handleModuleChanges(m *modules.Module) {
 	var moduleStatus *ModuleStatus
 subsystemLoop:
 	for _, subsystem := range subsystems {
-		if m.Name == subsystem.Status.Name {
-			moduleSubsystem = subsystem
-			moduleStatus = subsystem.Status
-			break subsystemLoop
-		}
-		for _, status := range subsystem.Dependencies {
+		for _, status := range subsystem.Modules {
 			if m.Name == status.Name {
 				moduleSubsystem = subsystem
 				moduleStatus = status