start.sh

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

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
BACKEND_HOST="${BACKEND_HOST:-127.0.0.1}"
BACKEND_PORT="${BACKEND_PORT:-8000}"
FRONTEND_HOST="${FRONTEND_HOST:-127.0.0.1}"
FRONTEND_PORT="${FRONTEND_PORT:-5173}"

cd "$ROOT_DIR"

if ! command -v uv >/dev/null 2>&1; then
  echo "Error: 'uv' is required but not installed." >&2
  exit 1
fi

if ! command -v bun >/dev/null 2>&1; then
  echo "Error: 'bun' is required but not installed." >&2
  exit 1
fi

if [[ ! -d .venv ]]; then
  echo "Creating Python environment with uv..."
  uv sync
fi

if [[ ! -d frontend/node_modules ]]; then
  echo "Installing frontend dependencies with bun..."
  (cd frontend && bun install)
fi

cleanup() {
  local exit_code=$?

  if [[ -n "${BACKEND_PID:-}" ]] && kill -0 "$BACKEND_PID" 2>/dev/null; then
    kill "$BACKEND_PID" 2>/dev/null || true
  fi

  if [[ -n "${FRONTEND_PID:-}" ]] && kill -0 "$FRONTEND_PID" 2>/dev/null; then
    kill "$FRONTEND_PID" 2>/dev/null || true
  fi

  wait "${BACKEND_PID:-}" "${FRONTEND_PID:-}" 2>/dev/null || true
  exit "$exit_code"
}
trap cleanup EXIT INT TERM

echo "Starting backend on http://${BACKEND_HOST}:${BACKEND_PORT}"
uv run uvicorn backend.main:app --host "$BACKEND_HOST" --port "$BACKEND_PORT" --reload &
BACKEND_PID=$!

echo "Starting frontend on http://${FRONTEND_HOST}:${FRONTEND_PORT}"
(
  cd frontend
  bun run vite --host "$FRONTEND_HOST" --port "$FRONTEND_PORT"
) &
FRONTEND_PID=$!

echo
printf 'Prompt Enhancer is starting...\n'
printf 'Backend:  http://%s:%s/api/v1/health\n' "$BACKEND_HOST" "$BACKEND_PORT"
printf 'Frontend: http://%s:%s\n' "$FRONTEND_HOST" "$FRONTEND_PORT"
printf 'Press Ctrl+C to stop both services.\n\n'

wait "$BACKEND_PID" "$FRONTEND_PID"