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

SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_DIR="$(cd -- "$SCRIPT_DIR/.." && pwd)"

SOURCE_DIR="$PROJECT_DIR/dist/car_ui"
INSTALL_DIR="/opt/car_ui"
SERVICE="car-ui.service"

if [[ $EUID -ne 0 ]]; then
    echo "ERROR: deploy.sh must be run as root."
    echo
    echo "Run:"
    echo "  sudo $0"
    exit 1
fi

if [[ ! -x "$SOURCE_DIR/car_ui" ]]; then
    echo "ERROR: Build not found:"
    echo "       $SOURCE_DIR/car_ui"
    echo
    echo "Run scripts/build.sh first."
    exit 1
fi

echo "==> Stopping $SERVICE"

systemctl stop "$SERVICE" 2>/dev/null || true

echo "==> Installing Car UI to $INSTALL_DIR"

rm -rf "$INSTALL_DIR"
mkdir -p "$INSTALL_DIR"
cp -a "$SOURCE_DIR/." "$INSTALL_DIR/"

echo "==> Starting $SERVICE"

systemctl start "$SERVICE"

echo
echo "==> Deployment complete"
echo "    $INSTALL_DIR/car_ui"