#!/bin/bash
# SilverBullet entrypoint (CachyOS/Arch user tools).
# Adapted from upstream docker-entrypoint.sh (busybox → shadow useradd).
set -euo pipefail

if [[ -f /space/CONTAINER_BOOT.md ]]; then
  echo "Executing CONTAINER_BOOT.md script"
  bash /space/CONTAINER_BOOT.md &
fi

SB_FOLDER="${SB_FOLDER:-/space}"

if [[ -z "${PUID:-}" && "$(id -u)" == "0" ]]; then
  PUID=$(stat -c "%u" "$SB_FOLDER")
  echo "Will run SilverBullet with UID $PUID (from owner of $SB_FOLDER)"
fi
if [[ -z "${PGID:-}" ]]; then
  PGID=$(stat -c "%g" "$SB_FOLDER")
fi

if [[ "${PUID:-0}" == "0" || "$(id -u)" != "0" ]]; then
  exec /silverbullet "$@"
fi

echo "Creating silverbullet user UID=$PUID GID=$PGID"
getent group silverbullet >/dev/null 2>&1 || groupadd -g "$PGID" silverbullet || groupadd -o -g "$PGID" silverbullet
getent passwd silverbullet >/dev/null 2>&1 || useradd -M -N -g silverbullet -u "$PUID" -d "$SB_FOLDER" -s /bin/bash silverbullet \
  || useradd -o -M -N -g silverbullet -u "$PUID" -d "$SB_FOLDER" -s /bin/bash silverbullet

echo "Running SilverBullet as PUID=$PUID PGID=$PGID"
# quote-safe: pass args via "$@" under su -c is awkward; use runuser when present
if command -v runuser >/dev/null 2>&1; then
  exec runuser -u silverbullet -- /silverbullet "$@"
fi
args=$(printf '%q ' "$@")
exec su silverbullet -s /bin/bash -c "/silverbullet $args"