const NEXT_AT_KEY = "peach_pro_nudge_next_at";
const DAY_MS = 24 * 60 * 60 * 1000;
const FIRST_SIGHT_GRACE_MS = 14 * DAY_MS;
const CADENCE_MS = 30 * DAY_MS;
const SNOOZE_MS = 90 * DAY_MS;

type NextAt = number | "never";

/**
 * Returns whether the Peach Pro nudge is due now, and if so records the
 * showing so a popup closed without a choice waits a full cadence window.
 */
export async function claimProNudge(now = Date.now()): Promise<boolean> {
  let nextAt: NextAt | undefined;
  try {
    nextAt = (await chrome.storage.local.get(NEXT_AT_KEY))[NEXT_AT_KEY] as NextAt | undefined;
  } catch {
    return false;
  }
  if (nextAt === "never") return false;
  if (typeof nextAt !== "number") {
    await chrome.storage.local.set({ [NEXT_AT_KEY]: now + FIRST_SIGHT_GRACE_MS });
    return false;
  }
  if (now < nextAt) return false;
  await chrome.storage.local.set({ [NEXT_AT_KEY]: now + CADENCE_MS });
  return true;
}

export async function snoozeProNudge(now = Date.now()): Promise<void> {
  await chrome.storage.local.set({ [NEXT_AT_KEY]: now + SNOOZE_MS });
}

export async function silenceProNudge(): Promise<void> {
  await chrome.storage.local.set({ [NEXT_AT_KEY]: "never" satisfies NextAt });
}