#!/usr/bin/env bash
set -euo pipefail

# Setup script — run as root on each server.
# Usage: ./setup.sh <mequ|kh3rad3ree>

HOSTNAME="${1:-}"
if [ -z "$HOSTNAME" ] || { [ "$HOSTNAME" != "mequ" ] && [ "$HOSTNAME" != "kh3rad3ree" ]; }; then
  echo "Usage: $0 <mequ|kh3rad3ree>"
  exit 1
fi

echo "=== Setting up featherChat on $HOSTNAME ==="

# Create warzone user if it doesn't exist
if ! id warzone &>/dev/null; then
  echo "[1/4] Creating warzone user..."
  useradd -r -m -s /bin/bash warzone
else
  echo "[1/4] User warzone already exists"
fi

# Create data directory
echo "[2/4] Creating directories..."
mkdir -p /home/warzone/data
chown -R warzone:warzone /home/warzone

# Copy binaries
echo "[3/4] Installing binaries..."
cp warzone-server warzone-client /home/warzone/
chmod +x /home/warzone/warzone-server /home/warzone/warzone-client
cp "federation-${HOSTNAME}.json" /home/warzone/federation.json
chown warzone:warzone /home/warzone/warzone-server /home/warzone/warzone-client /home/warzone/federation.json

# Copy environment file
if [ -f "warzone-server.env.${HOSTNAME}" ]; then
    cp "warzone-server.env.${HOSTNAME}" /home/warzone/server.env
    chown warzone:warzone /home/warzone/server.env
    echo "       Environment: $(cat /home/warzone/server.env | grep -v '^#' | grep .)"
fi

# Install systemd service + journald log cap
echo "[4/5] Installing systemd service..."
cp warzone-server.service /etc/systemd/system/
systemctl daemon-reload
systemctl enable warzone-server

echo "[5/5] Capping journal logs (50MB max, 7 day retention)..."
mkdir -p /etc/systemd/journald.conf.d
cp journald-warzone.conf /etc/systemd/journald.conf.d/warzone.conf
systemctl restart systemd-journald
# Vacuum existing logs
journalctl --vacuum-size=50M 2>/dev/null || true

echo ""
echo "=== Done ==="
echo "Start:   systemctl start warzone-server"
echo "Status:  systemctl status warzone-server"
echo "Logs:    journalctl -u warzone-server -f"
echo "Stop:    systemctl stop warzone-server"