docs: fix Home Assistant MQTT sensor JSON templates warnings (#4257)

* Fix Home Assistant active route MQTT sensor JSON templates

More gracefully handles JSONs with error (not actively routing)

* Fix tesla_active_route_distance_to_arrival_km sensor

* Fix template sensors

Conditionally convert values if the sensor actually has a value, to prevent converting invalid non-numeric values

* Fix copy/paste mistakes

website/docs/integrations/home_assistant.md

@@ -91,7 +91,12 @@ Don't forget to replace `<teslamate url>` and `<your tesla model>` with correct
         value_template: "{{ 'offline' if value_json.error else 'online' }}"
     device: *teslamate_device_info
     json_attributes_topic: "teslamate/cars/1/active_route"
-    json_attributes_template: "{{ value_json.location | tojson }}"
+    json_attributes_template: >
+      {% if not value_json.error and value_json.location %}
+        {{ value_json.location | tojson }}
+      {% else %}
+        {}
+      {% endif %}
     icon: mdi:crosshairs-gps
 
 - sensor:
@@ -446,7 +451,10 @@ Don't forget to replace `<teslamate url>` and `<your tesla model>` with correct
     availability: *teslamate_active_route_availability
     device: *teslamate_device_info
     state_topic: "teslamate/cars/1/active_route"
-    value_template: "{{ value_json.destination }}"
+    value_template: >
+      {% if not value_json.error and value_json.destination %}
+        {{ value_json.destination }}
+      {% endif %}
     icon: mdi:map-marker
 
 - sensor:
@@ -456,7 +464,10 @@ Don't forget to replace `<teslamate url>` and `<your tesla model>` with correct
     availability: *teslamate_active_route_availability
     device: *teslamate_device_info
     state_topic: "teslamate/cars/1/active_route"
-    value_template: "{{ value_json.energy_at_arrival }}"
+    value_template: >
+      {% if not value_json.error and value_json.energy_at_arrival %}
+        {{ value_json.energy_at_arrival }}
+      {% endif %}
     unit_of_measurement: "%"
     icon: mdi:battery-80
 
@@ -467,7 +478,10 @@ Don't forget to replace `<teslamate url>` and `<your tesla model>` with correct
     availability: *teslamate_active_route_availability
     device: *teslamate_device_info
     state_topic: "teslamate/cars/1/active_route"
-    value_template: "{{ value_json.miles_to_arrival }}"
+    value_template: >
+      {% if not value_json.error and value_json.miles_to_arrival %}
+        {{ value_json.miles_to_arrival }}
+      {% endif %}
     unit_of_measurement: mi
     icon: mdi:map-marker-distance
 
@@ -478,7 +492,10 @@ Don't forget to replace `<teslamate url>` and `<your tesla model>` with correct
     availability: *teslamate_active_route_availability
     device: *teslamate_device_info
     state_topic: "teslamate/cars/1/active_route"
-    value_template: "{{ value_json.minutes_to_arrival }}"
+    value_template: >
+      {% if not value_json.error and value_json.minutes_to_arrival %}
+        {{ value_json.minutes_to_arrival }}
+      {% endif %}
     unit_of_measurement: min
     icon: mdi:clock-outline
 
@@ -489,7 +506,10 @@ Don't forget to replace `<teslamate url>` and `<your tesla model>` with correct
     availability: *teslamate_active_route_availability
     device: *teslamate_device_info
     state_topic: "teslamate/cars/1/active_route"
-    value_template: "{{ value_json.traffic_minutes_delay }}"
+    value_template: >
+      {% if not value_json.error and value_json.traffic_minutes_delay %}
+        {{ value_json.traffic_minutes_delay }}
+      {% endif %}
     unit_of_measurement: min
     icon: mdi:clock-alert-outline
 
@@ -653,78 +673,111 @@ Don't forget to replace `<teslamate url>` and `<your tesla model>` with correct
       friendly_name: Estimated Range (mi)
       unit_of_measurement: mi
       icon_template: mdi:gauge
+      availability_template: "{{ has_value('sensor.tesla_est_battery_range_km') }}"
       value_template: >
-        {{ (states('sensor.tesla_est_battery_range_km') | float / 1.609344) | round(2) }}
+        {% if has_value('sensor.tesla_est_battery_range_km') %}
+          {{ (states('sensor.tesla_est_battery_range_km') | float / 1.609344) | round(2) }}
+        {% endif %}
 
     tesla_rated_battery_range_mi:
       friendly_name: Rated Range (mi)
       unit_of_measurement: mi
       icon_template: mdi:gauge
+      availability_template: "{{ has_value('sensor.tesla_rated_battery_range_km') }}"
       value_template: >
-        {{ (states('sensor.tesla_rated_battery_range_km') | float / 1.609344) | round(2) }}
+        {% if has_value('sensor.tesla_rated_battery_range_km') %}
+          {{ (states('sensor.tesla_rated_battery_range_km') | float / 1.609344) | round(2) }}
+        {% endif %}
 
     tesla_ideal_battery_range_mi:
       friendly_name: Ideal Range (mi)
       unit_of_measurement: mi
       icon_template: mdi:gauge
+      availability_template: "{{ has_value('sensor.tesla_ideal_battery_range_km') }}"
       value_template: >
-        {{ (states('sensor.tesla_ideal_battery_range_km') | float / 1.609344) | round(2) }}
+        {% if has_value('sensor.tesla_ideal_battery_range_km') %}
+          {{ (states('sensor.tesla_ideal_battery_range_km') | float / 1.609344) | round(2) }}
+        {% endif %}
 
     tesla_odometer_mi:
       friendly_name: Odometer (mi)
       unit_of_measurement: mi
       icon_template: mdi:counter
+      availability_template: "{{ has_value('sensor.tesla_odometer') }}"
       value_template: >
-        {{ (states('sensor.tesla_odometer') | float / 1.609344) | round(2) }}
+        {% if has_value('sensor.tesla_odometer') %}
+          {{ (states('sensor.tesla_odometer') | float / 1.609344) | round(2) }}
+        {% endif %}
 
     tesla_speed_mph:
       friendly_name: Speed (MPH)
       unit_of_measurement: mph
       icon_template: mdi:speedometer
+      availability_template: "{{ has_value('sensor.tesla_speed') }}"
       value_template: >
-        {{ (states('sensor.tesla_speed') | float / 1.609344) | round(2) }}
+        {% if has_value('sensor.tesla_speed') %}
+          {{ (states('sensor.tesla_speed') | float / 1.609344) | round(2) }}
+        {% endif %}
 
     tesla_elevation_ft:
       friendly_name: Elevation (ft)
       unit_of_measurement: ft
       icon_template: mdi:image-filter-hdr
+      availability_template: "{{ has_value('sensor.tesla_elevation') }}"
       value_template: >
-        {{ (states('sensor.tesla_elevation') | float * 3.2808 ) | round(2) }}
+        {% if has_value('sensor.tesla_elevation') %}
+          {{ (states('sensor.tesla_elevation') | float * 3.2808) | round(2) }}
+        {% endif %}
 
     tesla_tpms_pressure_fl_psi:
       friendly_name: Front Left Tire Pressure (psi)
       unit_of_measurement: psi
       icon_template: mdi:car-tire-alert
+      availability_template: "{{ has_value('sensor.tesla_tpms_fl') }}"
       value_template: >
-        {{ (states('sensor.tesla_tpms_pressure_fl') | float * 14.50377) | round(2) }}
+        {% if has_value('sensor.tesla_tpms_fl') %}
+          {{ (states('sensor.tesla_tpms_fl') | float * 14.50377) | round(2) }}
+        {% endif %}
 
     tesla_tpms_pressure_fr_psi:
       friendly_name: Front Right Tire Pressure (psi)
       unit_of_measurement: psi
       icon_template: mdi:car-tire-alert
+      availability_template: "{{ has_value('sensor.tesla_tpms_fr') }}"
       value_template: >
-        {{ (states('sensor.tesla_tpms_pressure_fr') | float * 14.50377) | round(2) }}
+        {% if has_value('sensor.tesla_tpms_fr') %}
+          {{ (states('sensor.tesla_tpms_fr') | float * 14.50377) | round(2) }}
+        {% endif %}
 
     tesla_tpms_pressure_rl_psi:
       friendly_name: Rear Left Tire Pressure (psi)
       unit_of_measurement: psi
       icon_template: mdi:car-tire-alert
+      availability_template: "{{ has_value('sensor.tesla_tpms_rl') }}"
       value_template: >
-        {{ (states('sensor.tesla_tpms_pressure_rl') | float * 14.50377) | round(2) }}
+        {% if has_value('sensor.tesla_tpms_rl') %}
+          {{ (states('sensor.tesla_tpms_rl') | float * 14.50377) | round(2) }}
+        {% endif %}
 
     tesla_tpms_pressure_rr_psi:
       friendly_name: Rear Right Tire Pressure (psi)
       unit_of_measurement: psi
       icon_template: mdi:car-tire-alert
+      availability_template: "{{ has_value('sensor.tesla_tpms_rr') }}"
       value_template: >
-        {{ (states('sensor.tesla_tpms_pressure_rr') | float * 14.50377) | round(2) }}
+        {% if has_value('sensor.tesla_tpms_rr') %}
+          {{ (states('sensor.tesla_tpms_rr') | float * 14.50377) | round(2) }}
+        {% endif %}
 
     tesla_active_route_distance_to_arrival_km:
       friendly_name: Active route distance to arrival (km)
       unit_of_measurement: km
       icon_template: mdi:map-marker-distance
+      availability_template: "{{ has_value('sensor.tesla_active_route_distance_to_arrival_mi') }}"
       value_template: >
-        {{ (states('sensor.tesla_active_route_distance_to_arrival_mi') | float * 1.609344) | round(2) }}
+        {% if has_value('sensor.tesla_active_route_distance_to_arrival_mi') %}
+          {{ (states('sensor.tesla_active_route_distance_to_arrival_mi') | float * 1.609344) | round(2) }}
+        {% endif %}
 ```
 
 ### binary_sensor.yaml (binary_sensor: section of configuration.yaml)