launch.hl

/*
 * File responsible for launching Hypereval.
 *
 * Notice, this file also seconds as a URL resolver for evaluating _"page"_ Hypereval snippets.
 * To load a page Hypereval snippet simply add the name of your snippet as the second part of your
 * URL, and it will load that snippet as a page, instead of launching
 * Hypereval itself. Example `/hypereval/some-page-snippet`.
 */





/*
 * Signal node, to separate arguments from the rest of lambda.
 */
.signal





/*
 * Checking if this is a request for a specific "page" snippet.
 */
micro.url.get-entities
if:x:/@micro.url.get-entities/*?count
  >:int:1

  /*
   * This is a request for a "page snippet".
   *
   * Evaluating snippet, making sure we wrap our evaluation in a try/catch block,
   * such that we can return intelligent error feedback to client if snippet doesn't exist.
   */
  try

    /*
     * Invoking event responsible for evaluating the requests page snippet.
     */
    hypereval.snippets.evaluate:x:/@micro.url.get-entities/1?name
      type:page

  catch

    /*
     * No such snippet found.
     */
    p5.web.response.set-status-code:404
    p5.web.response.set-status-description:404 - No such functioning snippet found
    p5.web.echo:x:/@message?value

else

  /*
   * This is not a request for a specific page, hence we load up main wireframe for
   * Hypereval.
   */
  add:x:/+
    src:x:/@.signal/--/<-
  micro.evaluate.file:@HYPEREVAL/helpers/launch-hypereval.hl