// The Playlist stage's metadata-scan view model.
//
// DELIBERATELY NOT IN PlaylistStage.tsx. That file is `"use client"`, and a
// value imported from a client module into a Server Component is replaced by a
// client REFERENCE — not the value. `MATCHED_PREVIEW_LIMIT` exported from there
// reached the server as an object, `slice(0, <object>)` became `slice(0, NaN)`,
// and the matched-titles list rendered empty while the count beside it said 2.
// Types alone would have been safe (they are erased); the constant is what
// forced this module to exist.
import type { MetadataScanRun } from "yt-dlp-transcript-common/controller/metadataScanStore";

// How many matched titles the stage lists. An eyeball check that the regex
// caught what the operator meant, not an inventory — the full answer is the
// channel's download list.
export const MATCHED_PREVIEW_LIMIT = 50;

export type MetadataScanMatch = {
  id: string;
  uploadDate: string;
  title: string;
};

export type MetadataScanView = {
  listed: number;
  scanned: number;
  errors: number;
  unscanned: number;
  lastRun: MetadataScanRun | null;
  filterConfigured: boolean;
  filteredOut: number;
  matchedTotal: number;
  // The split of `matchedTotal`: how many passed on their title/description and
  // how many only because "Include every livestream" is on. Without the split,
  // turning that switch on looks identical to widening the regex.
  matchedByText: number;
  matchedLivestreams: number;
  matched: MetadataScanMatch[];
};