import { sendNotification as send } from "./send.ts";
import { detectTerminal } from "./terminal-detect.ts";
import { createRuntime } from "./runtime.ts";
import type { Runtime } from "./runtime.ts";
import type { NotificationInput, TerminalNotification } from "./notify-protocol.ts";

export type { NotificationInput, TerminalNotification } from "./notify-protocol.ts";
export { NotifyProtocol, normalizeNotification } from "./notify-protocol.ts";
export { detectTerminal } from "./terminal-detect.ts";
export { sendNotification } from "./send.ts";

/** Best-effort notification for hosts that do not load the extension entry. */
export function notify(message: NotificationInput): void {
  send(message);
}

/** True when this process can attempt a terminal notification; it does not probe daemons. */
export function isAvailable(runtime: Runtime = createRuntime()): boolean {
  const globalSuppressed = /^(?:off|0|false)$/iu.test(runtime.env.PI_NOTIFICATIONS?.trim() ?? "");
  if (!runtime.stdoutIsTTY || globalSuppressed) return false;
  return Boolean(detectTerminal(runtime.env, undefined, () => runtime.readFileSync("/proc/version")));
}