#!/usr/bin/env bash

set -euo pipefail

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

usage() {
  cat <<'EOF'
Usage:
  ./scripts/deploy-frontend-standalone.sh <remote> <remote_app_dir> [--restart]

Arguments:
  remote          SSH target, e.g. user@example.com
  remote_app_dir  Remote deerflow2 root dir, e.g. /home/user/deerflow2

Options:
  --restart       Run "make start" on the remote host after upload

Example:
  ./scripts/deploy-frontend-standalone.sh ubuntu@1.2.3.4 /opt/deerflow2 --restart

Notes:
  - Run this script on your local machine (build machine), not on the server.
  - Requires: pnpm, rsync, ssh
EOF
}

if [ "${1:-}" = "-h" ] || [ "${1:-}" = "--help" ]; then
  usage
  exit 0
fi

if [ "$#" -lt 2 ] || [ "$#" -gt 3 ]; then
  usage
  exit 1
fi

REMOTE="$1"
REMOTE_APP_DIR="$2"
RESTART="${3:-}"

if [ "$RESTART" != "" ] && [ "$RESTART" != "--restart" ]; then
  echo "Unknown option: $RESTART"
  usage
  exit 1
fi

echo "==> Building frontend (standalone)..."
pnpm -C frontend build

echo "==> Uploading standalone server..."
rsync -azP --delete --info=progress2 \
  frontend/.next/standalone/ \
  "$REMOTE:$REMOTE_APP_DIR/frontend/.next/standalone/"

echo "==> Uploading static assets..."
rsync -azP --info=progress2 \
  frontend/.next/static/ \
  "$REMOTE:$REMOTE_APP_DIR/frontend/.next/standalone/.next/static/"

echo "==> Uploading public assets..."
rsync -azP --info=progress2 \
  frontend/public/ \
  "$REMOTE:$REMOTE_APP_DIR/frontend/.next/standalone/public/"

if [ "$RESTART" = "--restart" ]; then
  echo "==> Restarting DeerFlow on remote host..."
  ssh "$REMOTE" "cd '$REMOTE_APP_DIR' && make start"
fi

echo "==> Done."