start.sh

#!/usr/bin/env bash
# Starts the Vectis backend (FastAPI/uvicorn) and frontend (Vite) dev servers.
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
BACKEND_DIR="$ROOT_DIR/backend"
FRONTEND_DIR="$ROOT_DIR/frontend"

resolve_python_bin() {
  if [[ -n "${VIRTUAL_ENV:-}" ]] && [[ -x "$VIRTUAL_ENV/bin/python" ]]; then
    printf '%s\n' "$VIRTUAL_ENV/bin/python"
    return 0
  fi

  if [[ -x "$ROOT_DIR/.venv/bin/python" ]]; then
    printf '%s\n' "$ROOT_DIR/.venv/bin/python"
    return 0
  fi

  if [[ -x "$BACKEND_DIR/.venv/bin/python" ]]; then
    printf '%s\n' "$BACKEND_DIR/.venv/bin/python"
    return 0
  fi

  command -v python3
}

PYTHON_BIN="$(resolve_python_bin)"

if [[ -z "$PYTHON_BIN" ]]; then
  echo "Could not find a Python interpreter. Activate a virtualenv or create one at .venv/."
  exit 1
fi

if ! "$PYTHON_BIN" -c 'import uvicorn' >/dev/null 2>&1; then
  echo "Missing backend dependency: uvicorn is not installed for $PYTHON_BIN"
  echo "Run: $PYTHON_BIN -m pip install -r $BACKEND_DIR/requirements.txt"
  exit 1
fi

if [[ ! -d "$FRONTEND_DIR/node_modules" ]]; then
  echo "Frontend dependencies are missing in $FRONTEND_DIR/node_modules"
  echo "Run: cd $FRONTEND_DIR && npm install"
  exit 1
fi

cleanup() {
  echo "Stopping servers..."
  kill "${BACKEND_PID:-}" "${FRONTEND_PID:-}" 2>/dev/null || true
}
trap cleanup EXIT INT TERM

echo "Starting backend (FastAPI) on http://127.0.0.1:8000 ..."
(cd "$BACKEND_DIR" && "$PYTHON_BIN" -m uvicorn main:app --reload --port 8000) &
BACKEND_PID=$!

echo "Starting frontend (Vite) on http://127.0.0.1:5173 ..."
(cd "$FRONTEND_DIR" && npm run dev) &
FRONTEND_PID=$!

wait "$BACKEND_PID" "$FRONTEND_PID"