add log first activity (#3)

Author: juliangruber

lib/spark.js

@@ -4,17 +4,20 @@ const sleep = dt => new Promise(resolve => setTimeout(resolve, dt))
 
 // Create activity events when we bacome operational or fail, but only once
 export class ActivityState {
-  #ok = true
+  #ok = null
 
   onError () {
-    if (this.#ok) {
+    if (this.#ok === null || this.#ok) {
       this.#ok = false
       Zinnia.activity.error('SPARK failed reporting retrieval')
     }
   }
 
   onSuccess () {
-    if (!this.#ok) {
+    if (this.#ok === null) {
+      this.#ok = true
+      Zinnia.activity.info('SPARK started reporting retrievals')
+    } else if (!this.#ok) {
       this.#ok = true
       Zinnia.activity.info('SPARK retrieval reporting resumed')
     }