#!/bin/bash

# Install Tailscale on server2
# This script will detect the OS and install Tailscale accordingly

echo "=== Installing Tailscale on server2 ==="
echo ""

# Detect OS and install Tailscale
echo "Detecting OS and installing Tailscale..."
ssh server2 << 'EOF'
    # Detect OS
    if [ -f /etc/os-release ]; then
        . /etc/os-release
        OS=$ID
        VER=$VERSION_ID
    else
        echo "Cannot detect OS. Assuming Ubuntu/Debian."
        OS="ubuntu"
    fi

    echo "Detected OS: $OS $VER"
    echo ""

    # Install Tailscale based on OS
    case $OS in
        ubuntu|debian)
            echo "Installing Tailscale on Ubuntu/Debian..."
            curl -fsSL https://tailscale.com/install.sh | sh
            ;;
        fedora|rhel|centos|rocky|almalinux)
            echo "Installing Tailscale on RHEL/CentOS/Fedora..."
            curl -fsSL https://tailscale.com/install.sh | sh
            ;;
        arch|manjaro)
            echo "Installing Tailscale on Arch Linux..."
            curl -fsSL https://tailscale.com/install.sh | sh
            ;;
        *)
            echo "Using generic Linux installation..."
            curl -fsSL https://tailscale.com/install.sh | sh
            ;;
    esac

    echo ""
    echo "Tailscale installation complete!"
    echo ""
    echo "Next steps:"
    echo "1. Run: sudo tailscale up"
    echo "2. Follow the authentication link to connect this machine to your Tailscale network"
    echo ""
    echo "To check status: sudo tailscale status"
EOF

echo ""
echo "=== Installation script completed ==="
echo ""
echo "To authenticate and start Tailscale, run:"
echo "  ssh server2 'sudo tailscale up'"
echo ""
echo "This will provide a URL to authenticate the device."