wifi-densepose/scripts/macos-shortcuts/announce-via-homepod.sh

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#!/bin/bash
#
# announce-via-homepod.sh — ADR-125 §1.4 Tier 2 glue.
#
# Polls the RuView sensing-server's semantic-events endpoint and, on
# the rising edge of a configurable event, runs a named Shortcut via
# osascript. The Shortcut itself is owned by the operator in
# Shortcuts.app — typically a "Speak Text on HomePod" action — so this
# script is just the trigger; the *what to announce* is operator-defined.
#
# Run manually for testing:
# bash announce-via-homepod.sh --node-id 12 --event unrecognized_activity_pattern
#
# Run as a launchd job: see ruview-watcher.plist + README.md.
set -euo pipefail
SENSING_URL="${RUVIEW_SENSING_URL:-http://localhost:3000}"
NODE_ID="12"
EVENT="unrecognized_activity_pattern"
SHORTCUT_NAME="RuView Announce"
ANNOUNCEMENT=""
POLL_INTERVAL="5"
LOG_FILE="${RUVIEW_LOG:-/tmp/ruview-watcher.log}"
usage() {
cat >&2 <<EOF
Usage: $0 [options]
Options:
--node-id <id> Sensing-server node id (default: 12)
--event <name> Event to watch — one of:
unknown_presence
unexpected_occupancy
unrecognized_activity_pattern
(default: unrecognized_activity_pattern)
--shortcut-name <name> Shortcut to invoke (default: "RuView Announce")
--announcement <text> Text to speak when event fires (default: event name)
--sensing-url <url> Sensing-server base URL (default: http://localhost:3000)
--poll-interval <s> Poll interval in seconds (default: 5)
--once Single poll + exit (for testing)
-h, --help Show this help
EOF
}
ONCE=0
while [[ $# -gt 0 ]]; do
case "$1" in
--node-id) NODE_ID="$2"; shift 2 ;;
--event) EVENT="$2"; shift 2 ;;
--shortcut-name) SHORTCUT_NAME="$2"; shift 2 ;;
--announcement) ANNOUNCEMENT="$2"; shift 2 ;;
--sensing-url) SENSING_URL="$2"; shift 2 ;;
--poll-interval) POLL_INTERVAL="$2"; shift 2 ;;
--once) ONCE=1; shift ;;
-h|--help) usage; exit 0 ;;
*) echo "unknown arg: $1" >&2; usage; exit 2 ;;
esac
done
ANNOUNCEMENT="${ANNOUNCEMENT:-$(echo "$EVENT" | tr '_' ' ')}"
run_shortcut() {
local text="$1"
if ! command -v osascript >/dev/null 2>&1; then
echo "[$(date '+%H:%M:%S')] ERROR: osascript not found — macOS-only" >> "$LOG_FILE"
return 1
fi
# `Shortcuts Events` is the scriptable surface for Shortcuts.app.
# Passing input via `with input "..."` requires the Shortcut to
# have a "Receive Text input" trigger.
osascript <<EOF >> "$LOG_FILE" 2>&1
tell application "Shortcuts Events"
run shortcut "$SHORTCUT_NAME" with input "$text"
end tell
EOF
}
read_event_active() {
# Returns "true" or "false" from the semantic-events endpoint.
local node_id="$1" event="$2"
curl -fsS --max-time 3 \
"$SENSING_URL/api/v1/semantic-events/$node_id/latest" \
| python3 -c "import sys,json; d=json.load(sys.stdin); \
print(str(d.get('events',{}).get('$event',{}).get('active', False)).lower())" \
2>/dev/null || echo "unknown"
}
last_state="unknown"
echo "[$(date '+%H:%M:%S')] start: node=$NODE_ID event=$EVENT shortcut=\"$SHORTCUT_NAME\"" \
>> "$LOG_FILE"
while true; do
current="$(read_event_active "$NODE_ID" "$EVENT")"
if [[ "$current" != "$last_state" && "$current" == "true" ]]; then
echo "[$(date '+%H:%M:%S')] $EVENT rising-edge → running '$SHORTCUT_NAME'" \
>> "$LOG_FILE"
run_shortcut "$ANNOUNCEMENT" || \
echo "[$(date '+%H:%M:%S')] shortcut invocation failed" >> "$LOG_FILE"
fi
last_state="$current"
[[ "$ONCE" == "1" ]] && break
sleep "$POLL_INTERVAL"
done