// User-facing release notes: one entry per released version, newest first, as text in
// content/release-notes/<lang>.json rather than code, so the dialog loads only the UI language's file
// and only when it opens. A note says what a user notices, under "new" or "fixed", each item a
// sentence or two; internal work is not listed. Internal work never ships on its own either (owner
// decision): it waits for the next release a user can see, so the newest entry always has an item.
// releaseNotes.test.ts holds that, the version against VERSION, the length and the HU/EN parity, and
// scripts/gen-changelog.mjs renders the English file as CHANGELOG.md.

export interface ReleaseEntry {
  version: string;
  date: string; // ISO date (YYYY-MM-DD)
  sha?: string; // short commit the release was tagged from
  new: string[];
  fixed: string[];
}

export type NotesLang = "en" | "hu";

export function notesLang(uiLanguage: string): NotesLang {
  return uiLanguage.startsWith("hu") ? "hu" : "en";
}

export async function loadReleaseNotes(lang: NotesLang): Promise<ReleaseEntry[]> {
  const mod =
    lang === "hu"
      ? await import("../content/release-notes/hu.json")
      : await import("../content/release-notes/en.json");
  return mod.default as ReleaseEntry[];
}

/** An older release that only carried internal work has nothing to show (it is kept for the
 *  changelog, which says so). */
export function visibleNotes(all: ReleaseEntry[]): ReleaseEntry[] {
  return all.filter((r) => r.new.length > 0 || r.fixed.length > 0);
}