"use server";

import { revalidatePath } from "next/cache";
import { getPaths } from "yt-dlp-transcript-common/lib/paths";
import {
  addWidgetPreset,
  moveWidgetPreset,
  removeWidgetPreset,
  renameWidgetPreset,
} from "yt-dlp-transcript-common/lib/widgetPresets";

// Server actions behind the preset row. The in-widget menu reads
// back through /api/widget/presets (it is a client component with no server
// parent to revalidate into); the builder page SSR-seeds and this
// revalidatePath refreshes it.

export type PresetActionResult = { ok: true } | { ok: false; error: string };

function refreshBuilder(): void {
  revalidatePath("/widget/builder");
}

// Save `query` under `name`. Saving over an existing name overwrites it — a
// named slot, not an ever-growing list of same-named entries.
export async function saveWidgetPresetAction(
  name: string,
  query: string,
): Promise<PresetActionResult> {
  const preset = await addWidgetPreset(getPaths(), name, query);
  if (!preset) return { ok: false, error: "A preset needs a name." };
  refreshBuilder();
  return { ok: true };
}

export async function renameWidgetPresetAction(
  id: string,
  name: string,
): Promise<PresetActionResult> {
  const ok = await renameWidgetPreset(getPaths(), id, name);
  if (!ok) return { ok: false, error: "A preset needs a name." };
  refreshBuilder();
  return { ok: true };
}

export async function deleteWidgetPresetAction(
  id: string,
): Promise<PresetActionResult> {
  await removeWidgetPreset(getPaths(), id);
  refreshBuilder();
  return { ok: true };
}

export async function moveWidgetPresetAction(
  id: string,
  dir: -1 | 1,
): Promise<PresetActionResult> {
  await moveWidgetPreset(getPaths(), id, dir);
  refreshBuilder();
  return { ok: true };
}