cat > "${VALHEIMDIR}/start_server_managed.sh" << 'EOF'
#!/usr/bin/env bash
set -euo pipefail

# -------------------------
# BACKUP FUNCTION + LOOP
# -------------------------

backup_world() {
  echo "[backup] backing up world directory..."
  ts=$(date +"%Y-%m-%d_%H-%M-%S")

  world_dir="/root/.config/unity3d/IronGate/Valheim/worlds_local/${WORLD_NAME}"

  if [ -d "${world_dir}" ]; then
    mkdir -p "/mnt/backups"
    zip -r "/mnt/backups/${WORLD_NAME}_${ts}.zip" "${world_dir}"
    echo "[backup] created /mnt/backups/${WORLD_NAME}_${ts}.zip"
  else
    echo "[backup] WARNING: world directory not found: ${world_dir}"
  fi
}

# Run backups every hour in background
while true; do
  sleep 3600
  backup_world
done &

# -------------------------
# START SERVER
# -------------------------

# Forward environment variables into the BepInEx launcher
exec ./start_server_bepinex.sh \
  -name "${SERVER_NAME}" \
  -port 2456 \
  -world "${WORLD_NAME}" \
  -savedir "/root/.config/unity3d/IronGate/Valheim/worlds_local" \
  -password "${SERVER_PASSWORD}" \
  -public "${PUBLIC}"
EOF

chmod +x "${VALHEIMDIR}/start_server_managed.sh"