import type { QueryClient } from "@tanstack/react-query";
import { qk } from "./queryKeys";
import { api } from "./api";
import { copyText } from "./clipboard";
import { notify } from "./notifications";

// The download queue, the per-card download index, and the storage-usage meter all move together
// whenever a job is enqueued, deleted, or its state changes — invalidate them as one unit.
export function invalidateDownloads(qc: QueryClient) {
  qc.invalidateQueries({ queryKey: qk.downloads() });
  qc.invalidateQueries({ queryKey: qk.downloadIndex() });
  qc.invalidateQueries({ queryKey: qk.downloadUsage() });
}

// One-click share (E7 S3 · D2-A): the row's Share button turns "share this" into a single action.
// Ensure the job has a public link (minting one on demand — omitting `allow_download` so the backend
// D1 default makes it downloadable), copy it to the clipboard, and toast with an "open in new tab"
// action. A copy failure still toasts (warning) WITH that action, so the link is never a dead end.
// Advanced controls (password, expiry, revoke, share-with-a-user) live in the Share dialog. Returns
// the shared URL, or null if link creation failed — so the caller/tests can react to the outcome.
export async function quickShareLink(
  qc: QueryClient,
  job: { id: number },
  t: (key: string) => string,
): Promise<string | null> {
  let link;
  try {
    const existing = await qc.fetchQuery({
      queryKey: qk.downloadLinks(job.id),
      queryFn: () => api.downloadLinks(job.id),
    });
    link = existing[0];
    if (!link) {
      link = await api.createDownloadLink(job.id, {}); // omit allow_download → backend D1 default (true)
      qc.setQueryData(qk.downloadLinks(job.id), [link]);
    }
  } catch {
    notify({ level: "error", message: t("downloads.share.linkFailed") });
    return null;
  }
  const url = window.location.origin + link.url;
  const action = {
    label: t("downloads.share.openNewTab"),
    onClick: () => window.open(url, "_blank", "noopener,noreferrer"),
  };
  notify(
    (await copyText(url))
      ? { level: "success", message: t("downloads.share.linkCopied"), action }
      : { level: "warning", message: t("downloads.share.copyFailed"), action },
  );
  return url;
}