From 0a4b965613601045d83c21cee8956152f1592f2f Mon Sep 17 00:00:00 2001
From: Correl Roush <correl@gmail.com>
Date: Fri, 29 Jun 2018 15:15:14 -0400
Subject: [PATCH] Notify me when someone else enters or leaves the house

---
 packages/notifications.yaml |  4 +++
 packages/occupancy.yaml     | 62 +++++++++++++++++++++++++++++++------
 secrets.example.yaml        |  1 +
 3 files changed, 58 insertions(+), 9 deletions(-)
 create mode 100644 packages/notifications.yaml

diff --git a/packages/notifications.yaml b/packages/notifications.yaml
new file mode 100644
index 0000000..2a99a1c
--- /dev/null
+++ b/packages/notifications.yaml
@@ -0,0 +1,4 @@
+notify:
+  - name: correl
+    platform: pushbullet
+    api_key: !secret pushbullet_api_key
diff --git a/packages/occupancy.yaml b/packages/occupancy.yaml
index fa55c8e..b02f0e4 100644
--- a/packages/occupancy.yaml
+++ b/packages/occupancy.yaml
@@ -50,17 +50,46 @@ automation:
       - service: script.sonos_tts
         data_template:
           message: >-
-            Welcome home,
-            {{ states
-             | selectattr("entity_id", "in",
-                          states.group.phones.attributes.entity_id)
-             | selectattr('state', 'eq', 'home')
-             | map(attribute='attributes.friendly_name')
-             | join(' and ')}}!
+            {% set occupants
+               = states.sensor.occupants.state.split(', ')
+               | select
+               | reject('equalto', 'Somebody')
+               | join(', ')
+            %}
+            Welcome home
+            {{ occupants }}!
     trigger:
       - entity_id: binary_sensor.occupied
         platform: state
-        to: 'on'    
+        to: 'on'
+  - alias: Notify me when someone arrives at home
+    action:
+      - service: notify.correl
+        data_template:
+          title: Occupancy
+          message: >-
+            {% set occupants = states.sensor.occupants.state.split(', ')
+            %}
+            {% if occupants | length == 0 %}
+              Nobody is home
+            {% elif occupants | length == 1 %}
+              {{ occupants[0] }} is home
+            {% else %}
+              {{ occupants[:-2].join(', ') }}
+              {{ occupants[-2].join(' and ') }}
+              are home
+            {% endif %}
+    trigger:
+      - platform: state
+        entity_id: sensor.occupants
+    condition:
+      - condition: template
+        value_template: >-
+          {% set from = trigger.from_state.state.split(', ') | select %}
+          {% set to = trigger.to_state.state.split(', ') | select %}
+          {{ from|reject('equalto', 'Correl') | sort
+             != to|reject('equalto', 'Correl') | sort
+          }}
 
 input_boolean:
   occupied:
@@ -84,7 +113,22 @@ binary_sensor:
           {{ is_state('group.all_lights', 'on')
              or is_state('media_player.den', 'playing')
           }}
-
+sensor:
+  - platform: template
+    sensors:
+      occupants:
+        friendly_name: List of occupants
+        value_template: >-
+          {% if is_state('binary_sensor.occupied', 'on') %}
+            {{ states
+               | selectattr("entity_id", "in",
+                            states.group.phones.attributes.entity_id)
+               | selectattr('state', 'eq', 'home')
+               | map(attribute='attributes.friendly_name')
+               | join(', ')
+               | default('Somebody', true)
+            }}
+          {% endif %}
 group:
   Occupancy:
     view: yes
diff --git a/secrets.example.yaml b/secrets.example.yaml
index ec7c25d..51cae95 100644
--- a/secrets.example.yaml
+++ b/secrets.example.yaml
@@ -9,3 +9,4 @@ http_password: secret
 aws_access_key_id: secret
 aws_secret_access_key: secret
 darksky_api_key: secret
+pushbullet_api_key: secret