export const formatMoney = (amount: number, currency = "usd") =>
  new Intl.NumberFormat(undefined, { style: "currency", currency: currency.toUpperCase() }).format(amount / 100);

export const formatDay = (value: string, zone: "UTC" | "local" = "local") =>
  new Date(value).toLocaleDateString(undefined, {
    day: "numeric",
    month: "long",
    year: "numeric",
    ...(zone === "UTC" ? { timeZone: "UTC" } : {}),
  });

// A billing boundary is one Stripe instant, shown in the practice zone with its time so no two screens
// land on different days. A bare day, all the subscription summary sends, is a UTC day and says so.
export const formatBillingDate = (value: string, timeZone: string | null) =>
  /^\d{4}-\d{2}-\d{2}$/.test(value)
    ? `${formatDay(value, "UTC")} (UTC)`
    : new Date(value).toLocaleString(undefined, {
      day: "numeric",
      month: "long",
      year: "numeric",
      hour: "numeric",
      minute: "2-digit",
      timeZone: timeZone ?? undefined,
      timeZoneName: "short",
    });


// The server rule: exact after trimming and collapsing spaces.
const tidy = (value: string) => value.trim().replace(/\s+/g, " ");
export const sameName = (typed: string, name: string) => tidy(name) !== "" && tidy(typed) === tidy(name);

export const counted = (count: number, one: string, many: string) =>
  `${count.toLocaleString()} ${count === 1 ? one : many}`;

// Outside every workspace and permission gate: after a closure it is the one page staff can still use.
export const PRACTICE_CLOSURE_PATH = "/dashboard/practice-closure";
// The Owner's account while closed; under the closure path, so the closed gate already serves it.
export const PRACTICE_CLOSURE_ACCOUNT_PATH = `${PRACTICE_CLOSURE_PATH}/account`;

// The shared panel card (Card), lifted like every card; the class only stacks its children tight.
export const CLOSURE_CARD = "practice-closure__card";

// A closure outcome is a shared notice in its tone: a refusal in red, a wait in amber, done in green.
export const NOTICE_TONE = { stop: "ak-notice ak-notice--error", wait: "ak-notice", done: "ak-notice ak-notice--success" } as const;