#!/bin/sh
# Runs as root (via dumb-init). Fixes named-volume ownership then drops to the
# openwa user via gosu so the Node process never holds root privileges.
set -e

# Docker Compose bind-mounts /app/data, while Hugging Face Spaces use /data.
# Prefer an explicit path, otherwise select the compose mount when present and
# fall back to the Space-compatible writable directory. Exporting the selected
# value also protects against an empty orchestration variable shadowing the
# image default.
if [ -n "${OPENWA_DATA_DIR:-}" ]; then
  DATA_DIR="$OPENWA_DATA_DIR"
elif [ -d /app/data ]; then
  DATA_DIR=/app/data
else
  DATA_DIR=/data
fi
export OPENWA_DATA_DIR="$DATA_DIR"

mkdir -p "$DATA_DIR/sessions" "$DATA_DIR/media" "$DATA_DIR/plugins"
chown -R openwa:openwa "$DATA_DIR"

# Chromium leaves SingletonLock/SingletonSocket/SingletonCookie in each session profile and does
# not remove them on an unclean shutdown; stale locks block the next launch ("profile appears to be
# in use by another Chromium process", exit Code 21). No Chromium is running yet at entrypoint time,
# so clearing them lets sessions re-launch after a crash/restart. (#259)
rm -f "$DATA_DIR"/sessions/*/Singleton* 2>/dev/null || true

# Chromium resolves its home from the passwd entry (no /home/openwa exists), so it hard-crashes at
# launch unless its config/cache dirs exist and are writable. XDG_CONFIG_HOME/XDG_CACHE_HOME (set in
# the image) point here; create them owned by openwa. On a read_only rootfs these live on tmpfs /tmp,
# which is mounted fresh each start — so they must be (re)created at runtime, not at build. (#254)
if ! mkdir -p "${XDG_CONFIG_HOME:-/tmp/.config}" "${XDG_CACHE_HOME:-/tmp/.cache}"; then
  echo "FATAL: cannot create Chromium config/cache dirs (${XDG_CONFIG_HOME:-/tmp/.config}, ${XDG_CACHE_HOME:-/tmp/.cache})." >&2
  echo "       On a read_only rootfs, mount a writable tmpfs/emptyDir at /tmp (compose: 'tmpfs: [/tmp]'; k8s: an emptyDir at /tmp)." >&2
  echo "       Without it Chromium cannot launch and sessions will fail (#254)." >&2
  exit 1
fi
chown openwa:openwa "${XDG_CONFIG_HOME:-/tmp/.config}" "${XDG_CACHE_HOME:-/tmp/.cache}"

# "$@" = CMD from Dockerfile (default: node dist/main).
# gosu performs exec, so the node process replaces this shell and becomes the
# direct child of dumb-init (PID 1), which can therefore forward SIGTERM cleanly.
exec gosu openwa "$@"