Make health check honor update interval (#2683)

core/health.go

@@ -19,6 +19,10 @@ func NewHealth(timeout time.Duration) (health *Health) {
 
 // Healthy returns health status based on last update timestamp
 func (health *Health) Healthy() bool {
+	if health == nil {
+		return false
+	}
+
 	start := time.Now()
 
 	for time.Since(start) < time.Second {
@@ -35,6 +39,10 @@ func (health *Health) Healthy() bool {
 
 // Update updates the health timer on each loadpoint update
 func (health *Health) Update() {
+	if health == nil {
+		return
+	}
+
 	start := time.Now()
 
 	for time.Since(start) < time.Second {

core/site.go

@@ -127,7 +127,6 @@ func NewSiteFromConfig(
 func NewSite() *Site {
 	lp := &Site{
 		log:     util.NewLogger("site"),
-		Health:  NewHealth(60 * time.Second),
 		Voltage: 230, // V
 	}
 
@@ -476,6 +475,8 @@ func (site *Site) loopLoadpoints(next chan<- Updater) {
 // Run is the main control loop. It reacts to trigger events by
 // updating measurements and executing control logic.
 func (site *Site) Run(stopC chan struct{}, interval time.Duration) {
+	site.Health = NewHealth(time.Minute + interval)
+
 	loadpointChan := make(chan Updater)
 	go site.loopLoadpoints(loadpointChan)