#!/usr/bin/env bash
# One-time setup: create the games user, install directory, and systemd unit.
# Run as root (or with sudo).
set -euo pipefail

if [[ $EUID -ne 0 ]]; then
  echo "Run as root: sudo $0" >&2
  exit 1
fi

# Create system user if it doesn't exist
if ! id -u games &>/dev/null; then
  useradd --system --shell /usr/sbin/nologin --home-dir /opt/c4 --create-home games
  echo "Created system user: games"
else
  echo "User 'games' already exists"
fi

# Ensure install directory exists with correct ownership
install -d -o games -g games -m 755 /opt/c4
install -d -o games -g games -m 755 /opt/c4/data

# Install systemd unit
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
cp "$SCRIPT_DIR/c4.service" /etc/systemd/system/c4.service
systemctl daemon-reload
systemctl enable c4.service

echo "Setup complete. Run deploy.sh to build and start the service."