/**
 * Build-time release notes for the "what's new" screen.
 *
 * The screen appears once after unlock when the build version differs from the
 * last version the user acknowledged. `__PEACH_VERSION__` is injected by Vite
 * from package.json at build time. When `CURRENT_NOTES` is empty the screen is
 * skipped entirely — no content, no interruption.
 *
 * To ship a new changelog: bump the version in package.json (which Vite injects
 * as `__PEACH_VERSION__`), then add entries to `CURRENT_NOTES` below. The
 * version mismatch triggers the screen on next unlock; "Continue" stores the
 * version and suppresses it until the next bump.
 */

declare const __PEACH_VERSION__: string;

export interface ReleaseNote {
  heading: string;
  body: string;
  breaking?: boolean;
}

export const PEACH_VERSION: string = typeof __PEACH_VERSION__ !== "undefined"
  ? __PEACH_VERSION__
  : "0.0.0";

export const CURRENT_NOTES: ReleaseNote[] = [
  {
    heading: "Passphrases & long passwords",
    body: "Peach now supports passphrases and passwords up to 256 characters. Existing vaults remain fully readable.",
  },
  {
    heading: "Update your Android app first",
    body: "Vault V4 is not readable by Peach Android before v2.15.3. Open Peach on Android → Settings → Update, or visit peachpasswords.com to download the latest version. Export a backup on Android before updating.",
    breaking: true,
  },
];

export function hasReleaseNotes(): boolean {
  return CURRENT_NOTES.length > 0;
}

const WHATS_NEW_SEEN_KEY = "peach_whats_new_seen";

export async function shouldShowWhatsNew(): Promise<boolean> {
  if (!hasReleaseNotes()) return false;
  try {
    const seen = await chrome.storage.local.get(WHATS_NEW_SEEN_KEY);
    const last = seen[WHATS_NEW_SEEN_KEY];
    // A fresh install has no stored version — there is nothing to catch up
    // on, so the screen never appears. It only fires on an upgrade from a
    // previously-seen version. Mirrors Android's WhatsNewScreen gate.
    if (last === undefined) return false;
    return last !== PEACH_VERSION;
  } catch {
    return false;
  }
}

export async function markWhatsNewSeen(): Promise<void> {
  try {
    await chrome.storage.local.set({ [WHATS_NEW_SEEN_KEY]: PEACH_VERSION });
  } catch {
    // best-effort — the screen just won't reshow, which is the lesser evil
  }
}