import type { CreateFlowState } from "../../app/(app)/create/types";
import { RULE_SECTION_CATEGORY } from "./ruleSectionsFromMethodSelections";
import {
  membershipPresetFor,
  publishedMethodDisplayLabel,
} from "./finalReviewChipPresets";

export type MembershipInvitePreview = {
  categoryName: string;
  title: string;
  eligibility: string;
  joiningProcess: string;
};

/** First selected membership method, for the Invite your members card. */
export function membershipInvitePreview(
  state: CreateFlowState,
): MembershipInvitePreview | null {
  const ids = state.selectedMembershipMethodIds ?? [];
  const firstId = ids.find((id) => typeof id === "string" && id.trim() !== "");
  if (!firstId) return null;

  const saved = state.membershipMethodDetailsById?.[firstId];
  const preset = membershipPresetFor(firstId);
  const eligibility = (saved?.eligibility ?? "").trim() || preset.eligibility;
  const joiningProcess =
    (saved?.joiningProcess ?? "").trim() || preset.joiningProcess;
  const title =
    publishedMethodDisplayLabel(
      "membership",
      firstId,
      state.customMethodCardMetaById,
    ) || firstId;

  if (!title && !eligibility && !joiningProcess) return null;

  return {
    categoryName: RULE_SECTION_CATEGORY.membership,
    title,
    eligibility,
    joiningProcess,
  };
}