const FOOTER_MARKER = "<!-- shockbot-footer -->";

export function buildShockbotFooter(params?: {
  model?: string | undefined;
}): string {
  const modelPart = params?.model ? ` · \`${params.model}\`` : "";
  return `\n\n<br>\n\n---\n${FOOTER_MARKER}\n*Reviewed by [shockbot](https://git.shockvpn.com/shockbot)${modelPart}*`;
}

export function stripExistingFooter(body: string): string {
  const markerIdx = body.lastIndexOf(FOOTER_MARKER);
  if (markerIdx === -1) return body;
  // walk back past "\n\n---\n" before the marker
  const beforeMarker = body.slice(0, markerIdx);
  const stripped = beforeMarker.replace(/\s*\n+---\n$/, "").trimEnd();
  return stripped;
}