improve rofi hass scene script

1 files changed, 32 insertions, 8 deletions

diff --git a/.local/share/bin/scene b/.local/share/bin/scene
index f8ea953..3a140fa 100755
--- a/.local/share/bin/scene
+++ b/.local/share/bin/scene
@@ -1,24 +1,48 @@
 #!/bin/sh
-
 CACHE_FILE="$XDG_CACHE_HOME/hass-scenes"
+TAB="$(printf '\t')"
+
 update_cache() {
 	rm -f "$CACHE_FILE"
 	curl -s -X GET \
 		-H "Authorization: Bearer $HASS_TOKEN" \
 		-H "Content-Type: application/json" \
 		"$HASS_SERVER/api/states" |\
-	jq --raw-output ".[] | \"\\(.attributes.friendly_name) (\\(.entity_id))\"" |\
-	grep '(scene\..*)$' > "$CACHE_FILE"
+	jq --raw-output '
+		.[] |
+		select(.entity_id | startswith("scene.")) |
+		"\(.attributes.friendly_name)\t\(.entity_id)"
+	' > "$CACHE_FILE"
+}
+
+# update cache if it does not exist
+[ ! -e "$CACHE_FILE" ] && update_cache
+
+# update the cache if requested explicitly
+[ "$1" = "update" ] && {
+	update_cache
+	exit
 }
 
-[ ! -e "$CACHE_FILE" -o "$1" = "update" ] && update_cache
+# update the cache if it is older than
+MAX_CACHE_AGE=$(( 60 * 60 * 24 )) # one day
+[ $(( $(date +%s) - $MAX_CACHE_AGE )) -gt $(date -r "$CACHE_FILE" +%s) ] && update_cache
 
-entity="$(cat "$CACHE_FILE" |\
-	rofi -dmenu |\
-	sed 's/^.*(\(.*\))$/\1/' |\
+# pick a scene using rofi in dmenu mode
+scene="$(cat "$CACHE_FILE" |\
+	rofi \
+		-dmenu \
+		-display-columns 1 \
+		-display-column-separator "$TAB" |\
+	cut -d"$TAB" -f2 |\
 	jq --raw-input)"
-jq -n --argjson entity "$entity" '{"entity_id": $entity}' |\
+
+# exit if no scene was selected
+[ -z "$scene" ] && exit 0
+
+jq -n --argjson scene "$scene" '{"entity_id": $scene}' |\
 	curl -s -X POST -d @- \
 		-H "Authorization: Bearer $HASS_TOKEN" \
 		-H "Content-Type: application/json" \
 		"$HASS_SERVER/api/services/scene/turn_on" > /dev/null
+