MainActivity: show save button if any values has changed

app/src/main/java/it/danieleverducci/lunatracker/adapters/LunaEventRecyclerAdapter.kt

@@ -59,7 +59,7 @@ class LunaEventRecyclerAdapter: RecyclerView.Adapter<LunaEventRecyclerAdapter.Lu
             LunaEvent.TYPE_CUSTOM -> item.notes
             else -> item.getTypeDescription(context)
         }
-        holder.time.text = DateUtils.formatTimeAgo(context, item.time)
+        holder.time.text = DateUtils.formatTimeAgo(context, item.getEndTime())
         var quantityText = numericUtils.formatEventQuantity(item)
 
         // if the event is weight, show difference with the last one

app/src/main/java/it/danieleverducci/lunatracker/entities/LunaEvent.kt

@@ -94,6 +94,18 @@ class LunaEvent: Comparable<LunaEvent> {
         this.quantity = quantity
     }
 
+    fun getStartTime(): Long {
+        return time
+    }
+
+    fun getEndTime(): Long {
+        return if (type == TYPE_SLEEP) {
+            time + quantity
+        } else {
+            time
+        }
+    }
+
     fun getTypeEmoji(context: Context): String {
         return context.getString(
             when (type) {