updates

packages/laundry/timer.yaml

@@ -1,3 +1,30 @@
 timer:
   laundry:
-    #duration: "03:20:00"
+    #duration: "03:20:00"
+
+sensor:
+  - platform: template
+    sensors:
+      laundry_remaining:
+        friendly_name: "Laundry Remaining"
+        value_template: >
+          {% set f = state_attr('timer.laundry', 'finishes_at') %}
+          {{ '00:00:00' if f == None else 
+            (as_datetime(f) - now()).total_seconds() | timestamp_custom('%H:%M:%S', false) }}
+template:
+  - trigger:
+      - platform: state
+        entity_id:
+          - timer.laundry
+        attribute: remaining
+    sensor:
+      # Keep track how many days have past since a date
+      - name: laundry_remaining
+        state: >
+          {% set f = state_attr('timer.laundry', 'finishes_at') %}
+          {% set res = '00:00:00' %}
+          {% if f != None %}
+          {{ (as_datetime(f) - now()).total_seconds() | timestamp_custom('%H:%M:%S', false) }}
+          {% else %}
+          {{ res }}
+          {% endif %}