export type RecallScope = "lineage" | "all";

const SCOPE_RE = /\bscope:(lineage|all)\b/i;

export const normalizeRecallScope = (scope?: unknown): RecallScope =>
  typeof scope === "string" && scope.toLowerCase() === "all"
    ? "all"
    : "lineage";

export const parseRecallScope = (
  text: string,
): { scope: RecallScope; text: string } => {
  const match = SCOPE_RE.exec(text);
  return {
    scope: normalizeRecallScope(match?.[1]),
    text: text.replace(SCOPE_RE, "").replace(/\s+/g, " ").trim(),
  };
};