Add HomeAssisstant Binary Sensor Screensaver

Curl command showing example update of a Homeassistant binary sensor.

screensaver_end.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+# homeassistant_access_token=""
+homeassistant_url="http://homeassistant.natrinicle.com:8123/api/states"
+homeassistant_screensaver_binary_sensor="${homeassistant_url}/binary_sensor.$(hostname | tr -s '-' '_' | tr '[:upper:]' '[:lower:]')_screen_locked"
+
+ps -e -o stat,command,pid | grep '^T' | grep -P "(firefox|atom)" | awk '{print $NF}' | xargs -P0 -I {} kill -CONT {}
+
+# Update Homeassistant
+if [ -n "${homeassistant_access_token}" ] && [ -n "${homeassistant_screensaver_binary_sensor}" ]; then
+  curl -X POST -H "Authorization: Bearer ${homeassistant_access_token}" -H "Content-Type: application/json" -d "{\"state\": \"off\", \"attributes\": {\"friendly_name\": \"$(hostname) Screensaver\"}}" "${homeassistant_screensaver_binary_sensor}"
+fi

screensaver_start.sh

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+#!/usr/bin/env bash
+
+# homeassistant_access_token=""
+homeassistant_url="http://homeassistant.natrinicle.com:8123/api/states"
+homeassistant_screensaver_binary_sensor="${homeassistant_url}/binary_sensor.$(hostname | tr -s '-' '_' | tr '[:upper:]' '[:lower:]')_screen_locked"
+
+# MPRIS = Media Player Remote Interfacing Specification
+firefox_mpris_dbus=$(dbus-send --print-reply --dest=org.freedesktop.DBus  /org/freedesktop/DBus org.freedesktop.DBus.ListNames | grep -Po "org.mpris.*firefox[^\"]+")
+
+if [ -n "${firefox_mpris_dbus}" ]; then
+  playback_string=$(dbus-send --print-reply --dest=${firefox_mpris_dbus} /org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Get string:'org.mpris.MediaPlayer2.Player' string:'PlaybackStatus' | grep -Po "(?<=string \")[^\"]+")
+fi
+
+# Suspend Firefox processes if not playing media
+if [ -z "${playback_string}" ] || [ "${playback_string}" != "Playing" ]; then
+  ps aux | grep [f]irefox/[f]irefox | awk '{print $2}' | xargs -P0 -I {} kill -STOP {}
+fi
+
+# Suspend Atom processes
+ps aux | grep "/[a]tom" | awk '{print $2}' | xargs -P0 -I {} kill -STOP {}
+
+# Update Homeassistant
+if [ -n "${homeassistant_access_token}" ] && [ -n "${homeassistant_screensaver_binary_sensor}" ]; then
+  curl -X POST -H "Authorization: Bearer ${homeassistant_access_token}" -H "Content-Type: application/json" -d "{\"state\": \"on\", \"attributes\": {\"friendly_name\": \"$(hostname) Screensaver\"}}" "${homeassistant_screensaver_binary_sensor}"
+fi