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

echo ""
echo "============================================"
echo "  Zlattea - Install"
echo "============================================"
echo ""

# --- require non-root for local setup ---
if [ "$(id -u)" = "0" ]; then
  echo "This install script is for local/home setup."
  echo "Run as a regular user, not root."
  echo ""
  echo "For production (systemd + reverse proxy), use:"
  echo "  sudo ./install.sh"
  exit 1
fi

# --- admin password ---
if [ -z "${ADMIN_PASSWORD:-}" ]; then
  echo "Admin password (required for the admin account):"
  read -r -s -p "> " ADMIN_PASSWORD
  echo ""
  if [ -z "$ADMIN_PASSWORD" ]; then
    echo "ERROR: admin password is required."
    exit 1
  fi
fi

# --- port and bind address ---
if [ -z "${PORT:-}" ]; then
  echo ""
  echo "Port for the web server? (default: 3000)"
  read -r -p "> " PORT
  PORT="${PORT:-3000}"
fi

if [ -z "${BIND:-}" ]; then
  echo ""
  echo "IP address to bind to? (default: 127.0.0.1)"
  read -r -p "> " BIND
  BIND="${BIND:-127.0.0.1}"
fi

API_PORT=$((PORT + 1))

echo ""
echo "============================================"
echo "  Configuration"
echo "============================================"
echo "  Web server : ${BIND}:${PORT}"
echo "  API server : ${BIND}:${API_PORT}"
echo "============================================"
echo ""

# --- install prerequisites ---
install_prereqs() {
  echo "checking prerequisites..."
  local missing=""
  for cmd in git curl unzip; do
    if ! command -v "$cmd" &>/dev/null; then
      missing="$missing $cmd"
    fi
  done
  if [ -n "$missing" ]; then
    echo "installing:$missing"
    if command -v apt-get &>/dev/null; then
      sudo apt-get update -qq && sudo apt-get install -y -qq $missing
    elif command -v dnf &>/dev/null; then
      sudo dnf install -y $missing
    elif command -v yum &>/dev/null; then
      sudo yum install -y $missing
    elif command -v pacman &>/dev/null; then
      sudo pacman -S --noconfirm $missing
    elif command -v apk &>/dev/null; then
      sudo apk add $missing
    else
      echo "WARNING: unknown package manager. Install manually: $missing"
    fi
  fi
}
install_prereqs

# --- install bun ---
if ! command -v bun &>/dev/null; then
  echo "installing bun..."
  curl -fsSL https://bun.sh/install | bash
  export BUN_INSTALL="$HOME/.bun"
  export PATH="$BUN_INSTALL/bin:$PATH"
fi

if ! command -v bun &>/dev/null; then
  echo "ERROR: bun installation failed."
  exit 1
fi

# --- write .env ---
cat > .env <<EOF
PORT=${PORT}
API_PORT=${API_PORT}
SITE_URL=http://${BIND}:${PORT}
DB_PATH=data/shop.db
ADMIN_PASSWORD=${ADMIN_PASSWORD}
ADMIN_EMAIL=admin@zlattea.com
HOST=${BIND}
EOF
echo ".env written"

# --- install deps ---
echo "installing npm dependencies..."
bun install

# --- setup database ---
mkdir -p data public/images/products
echo "setting up database..."
bun run src/setup.ts

# --- build ---
echo "building frontend..."
bunx --bun astro build

# --- start servers ---
echo ""
echo "============================================"
echo "  Starting servers"
echo "============================================"
echo "  API : http://${BIND}:${API_PORT}"
echo "  Web : http://${BIND}:${PORT}"
echo "============================================"
echo ""
echo "Press Ctrl+C to stop."

bun run src/server.ts &
PID_API=$!
bun run ./dist/server/entry.mjs &
PID_WEB=$!

trap "kill $PID_API $PID_WEB 2>/dev/null; exit" INT TERM
wait