#!/bin/sh
set -e

# Resolve PUID/PGID (Unraid default: nobody=99, users=100)
PUID=${PUID:-99}
PGID=${PGID:-100}

echo "[entrypoint] Starting Family Planner (PUID=${PUID}, PGID=${PGID})"

# Resolve group: reuse existing group at PGID, or create a new one
if getent group "${PGID}" > /dev/null 2>&1; then
  APP_GROUP=$(getent group "${PGID}" | cut -d: -f1)
  echo "[entrypoint] Reusing existing group '${APP_GROUP}' (GID=${PGID})"
else
  APP_GROUP=appgroup
  addgroup -g "${PGID}" "${APP_GROUP}"
  echo "[entrypoint] Created group '${APP_GROUP}' (GID=${PGID})"
fi

# Resolve user: reuse existing user at PUID, or create a new one
if getent passwd "${PUID}" > /dev/null 2>&1; then
  APP_USER=$(getent passwd "${PUID}" | cut -d: -f1)
  echo "[entrypoint] Reusing existing user '${APP_USER}' (UID=${PUID})"
else
  APP_USER=appuser
  adduser -D -u "${PUID}" -G "${APP_GROUP}" "${APP_USER}"
  echo "[entrypoint] Created user '${APP_USER}' (UID=${PUID})"
fi

# Ensure /data is owned by the app user so SQLite can write
mkdir -p /data
chown -R "${PUID}:${PGID}" /data

# Drop privileges and exec the CMD
exec su-exec "${PUID}:${PGID}" "$@"