import type { ContactMessageType, SubmitContactMessageInput } from "@batch-cooking/shared";

/**
 * Builds the `POST /contact` payload (issue #80) from the two things the
 * user picked in the form — the message `type` and its text — plus the two
 * pieces of context captured automatically: the path they're on
 * (`window.location.pathname`) and the running app version
 * (`__APP_VERSION__`, injected by `vite.config.ts`). Kept out of
 * `ContactPage` so those ambient reads sit in one unit-testable place.
 *
 * The user-agent is deliberately NOT set here — the API reads it straight
 * from the request header, never trusting the client for it (see
 * `submitContactMessageSchema`, which omits it).
 */
export function buildContactMessageInput(
  type: ContactMessageType,
  message: string,
): SubmitContactMessageInput {
  return {
    type,
    message,
    pageUrl: window.location.pathname,
    appVersion: __APP_VERSION__,
  };
}