text: # Copyright Contributors to the Amundsen project.
  # SPDX-License-Identifier: Apache-2.0
  
  from typing import Any, Tuple
  import logging
  
  from flask import Flask, render_template
  import jinja2
  import os
  
  
  ENVIRONMENT = os.getenv('APPLICATION_ENV', 'development')
  LOGGER = logging.getLogger(__name__)
  
  
  def init_routes(app: Flask) -> None:
      app.add_url_rule('/healthcheck', 'healthcheck', healthcheck)
      app.add_url_rule('/', 'index', index, defaults={'path': ''})  # also functions as catch_all
      app.add_url_rule('/<path:path>', 'index', index)  # catch_all
  
  
  def index(path: str) -> Any:
      try:
          return render_template("index.html", env=ENVIRONMENT)  # pragma: no cover
      except jinja2.exceptions.TemplateNotFound as e:
          LOGGER.error("index.html template not found, have you built the front-end JS (npm run build in static/?")
          raise e
  
  
  def healthcheck() -> Tuple[str, int]:
      return '', 200  # pragma: no cover
  