#!/bin/bash

# ==============================================================================
# SINGLE-COMMAND BOOTSTRAP: IP, DOCKER, ANSIBLE
# Target: Ubuntu / Debian
# ==============================================================================

set -euo pipefail

# --- 1. SET STATIC IP (Netplan) ---
echo "[⚙] Configuring Static IP to 10.0.0.200..."

# Find the active physical interface (e.g., eth0, enp3s0)
INTERFACE=$(ip -o link show | awk -F': ' '$2 != "lo" {print $2}' | head -n1)

sudo mkdir -p /etc/netplan
sudo cat <<EOF > /etc/netplan/01-netcfg.yaml
network:
  version: 2
  renderer: networkd
  ethernets:
    $INTERFACE:
      addresses:
        - 10.0.0.200/24
      nameservers:
        addresses: [10.0.0.2, 8.8.8.8]
      routes:
        - to: default
          via: 10.0.0.1
EOF

echo "[✓] Netplan config created. Applying in background..."
# We apply in background so the script doesn't hang if SSH drops
sudo netplan apply &

# --- 2. INSTALL DOCKER ---
echo "[⚙] Installing Docker..."
sudo apt-get update -qq
sudo apt-get install -y ca-certificates curl gnupg lsb-release

sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg --yes

echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | \
    sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update -qq
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin

# Allow current user to run docker without sudo
sudo usermod -aG docker $USER
echo "[✓] Docker installed."

# --- 3. INSTALL ANSIBLE ---
echo "[⚙] Installing Ansible..."
sudo apt-get install -y software-properties-common
sudo add-apt-repository --yes --update ppa:ansible/ansible
sudo apt-get install -y ansible
echo "[✓] Ansible installed."

echo "=========================================="
echo "BOOTSTRAP COMPLETE"
echo "IP: 10.0.0.200 (You may need to reconnect)"
echo "Docker & Ansible: Ready"
echo "=========================================="