#!/bin/sh
# Maps environment variables onto lgtv-audiocap-receiver.py's flags, since
# that's how Unraid (and most container UIs) expose configuration — nobody
# wants to hand-edit a CLI in the "extra parameters" box.
set -eu

args="--port ${PORT:-5004} --bind ${BIND:-0.0.0.0}"
args="$args --output ${OUTPUT:-aplay} --device ${DEVICE:-hw:Loopback,0,0}"
args="$args --rate ${RATE:-48000} --channels ${CHANNELS:-2}"
args="$args --latency-ms ${LATENCY_MS:-80} --prebuffer-ms ${PREBUFFER_MS:-60}"
args="$args --max-gap ${MAX_GAP:-200} --reset-after ${RESET_AFTER:-5.0}"
args="$args --stats ${STATS:-30}"

[ -n "${MULTICAST:-}" ] && args="$args --multicast $MULTICAST"
[ -n "${IFACE:-}" ] && args="$args --iface $IFACE"
[ "${FILL_SILENCE:-1}" = "0" ] && args="$args --no-fill-silence"

# Anything passed on the "docker run" command line (or Unraid's "Extra
# Parameters") is appended last, so it can override an env-derived flag —
# and so plain `--help` works instead of silently starting the daemon.
echo "lgtv-audiocap-receiver.py $args $*"
# shellcheck disable=SC2086
exec python3 /usr/local/bin/lgtv-audiocap-receiver.py $args "$@"