import type { ProcessingProgress } from "../types/processingProgress";

export function resolveReimbursementPaymentHandoff({
  status,
  deletedAt,
  progress,
}: {
  status: string;
  deletedAt?: string | null;
  progress?: ProcessingProgress | null;
}) {
  const unavailable = { nextStep: "付款进度暂不可用，请刷新后重试", canCreateBatch: false, targetHref: null as string | null };
  if (deletedAt || !["approved", "paid"].includes(status)) return null;
  const stages = progress?.stages ?? [];
  const created = stages.find((stage) => stage.key === "payment_batch_created");
  const review = stages.find((stage) => stage.key === "payment_batch_review");
  const payment = stages.find((stage) => stage.key === "payment_and_receipt");
  if (!created || !review || !payment) return unavailable;
  if (status === "paid") {
    return {
      ...unavailable,
      nextStep: payment.state === "completed" ? payment.detail ?? "查看付款结果" : unavailable.nextStep,
      targetHref: payment.state === "completed" ? payment.targetHref : null,
    };
  }
  if (created.state === "current" && review.state === "pending" && payment.state === "pending"
    && !created.targetHref && !review.targetHref && !payment.targetHref) {
    return { ...unavailable, nextStep: created.detail ?? "待财务组建付款批次", canCreateBatch: true };
  }
  if (created.state !== "completed") return unavailable;
  const current = [payment, review].find((stage) => stage.state === "current" || stage.state === "exception");
  if (!current || !current.detail) return unavailable;
  return { ...unavailable, nextStep: current.detail, targetHref: current.targetHref };
}