#!/bin/bash

# Simple Uptime & Service Health Check for VPS
# Checks Xray, AdGuard Home, Tailscale, and WireGuard

SERVICES=("xray" "AdGuardHome" "tailscaled" "wg-quick@wg0")

echo "--- Service Health Check ($(date)) ---"

for svc in "${SERVICES[@]}"; do
    if systemctl is-active --quiet "$svc"; then
        echo "[OK] $svc is running"
    else
        echo "[ERROR] $svc is NOT running!"
        # Optional: Attempt restart
        # sudo systemctl restart "$svc"
    fi
done

# Check if Xray is listening on 443
if ss -tuln | grep -q ":443 "; then
    echo "[OK] Port 443 is listening (Xray)"
else
    echo "[ERROR] Port 443 is NOT listening!"
fi

# Check if AdGuard Home is listening on 53 (Tailscale IP)
TAILSCALE_IP="100.70.115.1"
if ss -tuln | grep -q "$TAILSCALE_IP:53 "; then
    echo "[OK] AdGuard Home is listening on $TAILSCALE_IP:53"
else
    echo "[WARNING] AdGuard Home is NOT listening on $TAILSCALE_IP:53"
fi

echo "--- Check Complete ---"