#!/usr/bin/env bash
# Liefert Firmware-Images und den Stationscode an den Pi aus.
#
# Aufruf: tools/station/deploy.sh <pi-host> [target ...]
# Ohne target-Argumente werden alle in build/*/ gefundenen _ota.img uebertragen.
set -euo pipefail
HOST=${1:?Aufruf: tools/station/deploy.sh <pi-host> [target ...]}
shift || true
HERE=$(cd "$(dirname "$0")" && pwd)
ROOT=$(cd "$HERE/../.." && pwd)
MKIMAGE="$ROOT/tools/mkimage/nl_mkimage.py"

declare -a FILES=()
if [ $# -gt 0 ]; then
  for t in "$@"; do
    f="$ROOT/build/$t/ninlight_${t}_ota.img"
    [ -f "$f" ] || { echo "Fehler: $f fehlt - erst bauen" >&2; exit 1; }
    FILES+=("$f")
  done
else
  while IFS= read -r f; do FILES+=("$f"); done < <(find "$ROOT/build" -maxdepth 2 -name 'ninlight_*_ota.img' | sort)
  [ ${#FILES[@]} -gt 0 ] || { echo "Fehler: keine Images unter $ROOT/build gefunden" >&2; exit 1; }
fi

echo "== Images pruefen =="
STAGE=$(mktemp -d)
trap 'rm -rf "$STAGE"' EXIT
printf '%-26s %-10s %s\n' GERAET VERSION BYTES
for f in "${FILES[@]}"; do
  base=$(basename "$f")
  target=${base#ninlight_}; target=${target%_ota.img}
  # Ein Image, das die Pruefung nicht besteht, wuerde jede Lampe ablehnen -
  # das faellt sonst erst am Geraet auf.
  out=$(python3 "$MKIMAGE" --verify "$f" --expect-device "$target") || {
    echo "Fehler: $base besteht die Trailer-Pruefung nicht, nichts uebertragen" >&2; exit 1; }
  # shellcheck disable=SC2086
  set -- $out
  printf '%-26s %-10s %s\n' "$1" "$2" "$3"
  cp "$f" "$STAGE/$base"
done

echo "== uebertragen =="
rsync -a --delete "$STAGE/" "$HOST:/tmp/ninlight-images/"
rsync -a "$HERE/server.py" "$HERE/ninlight-station" "$HERE/ninlight-station.service" "$HOST:/tmp/"
ssh "$HOST" 'set -e
  sudo install -d -m 0755 /opt/ninlight-station/images
  sudo rsync -a --delete /tmp/ninlight-images/ /opt/ninlight-station/images/
  sudo install -m 0755 /tmp/server.py /opt/ninlight-station/server.py
  sudo install -m 0755 /tmp/ninlight-station /usr/local/bin/ninlight-station
  sudo install -m 0644 /tmp/ninlight-station.service /etc/systemd/system/ninlight-station.service
  rm -rf /tmp/ninlight-images /tmp/server.py /tmp/ninlight-station /tmp/ninlight-station.service
  sudo systemctl daemon-reload
  systemctl is-active --quiet ninlight-station && { sudo systemctl restart ninlight-station; echo "  Dienst neu gestartet"; } || echo "  Dienst laeuft nicht (Station ist aus)"'

echo "fertig."