#!/bin/bash
# Detect system type on remote host
# Usage: ./detect-system.sh <hostname>

TARGET_HOST="$1"

if [ -z "$TARGET_HOST" ]; then
    echo "Usage: $0 <hostname>" >&2
    exit 1
fi

# SSH options for faster connection
SSH_OPTS="-o ConnectTimeout=10 -o BatchMode=yes -o StrictHostKeyChecking=no"

# Try to detect system type
if ssh $SSH_OPTS root@${TARGET_HOST} "test -f /usr/bin/pvesh" 2>/dev/null; then
    echo "proxmox"
    exit 0
elif ssh $SSH_OPTS root@${TARGET_HOST} "test -f /usr/local/bin/freenas-version || test -f /usr/local/bin/truenas-version" 2>/dev/null; then
    echo "truenas"
    exit 0
elif ssh $SSH_OPTS root@${TARGET_HOST} "test -f /usr/local/sbin/pfSsh.php" 2>/dev/null; then
    echo "pfsense"
    exit 0
elif ssh $SSH_OPTS root@${TARGET_HOST} "test -f /usr/sbin/univention-config-registry" 2>/dev/null; then
    echo "ucs"
    exit 0
else
    echo "unknown"
    exit 0
fi