import { notificationToDesktopText, type NotificationInput } from "./notify-protocol.ts";
import type { Runtime } from "./runtime.ts";

export const CMUX_SURFACE_ID_PATTERN = /^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}$/iu;

export function isInsideTmux(env: Readonly<Record<string, string | undefined>> = process.env): boolean {
  return Boolean(env.TMUX);
}

export function isInsideZellij(env: Readonly<Record<string, string | undefined>> = process.env): boolean {
  return Boolean(env.ZELLIJ);
}

export function wrapTmuxPassthrough(payload: string): string {
  return `\x1bPtmux;${payload.replaceAll("\x1b", "\x1b\x1b")}\x1b\\`;
}

export function sendCmuxNotification(input: NotificationInput, runtime: Runtime): boolean {
  const surface = runtime.env.CMUX_SURFACE_ID?.trim();
  if (!surface || !CMUX_SURFACE_ID_PATTERN.test(surface)) return false;
  const { title, body } = notificationToDesktopText(input);
  try {
    return runtime.spawnDetached("cmux", ["notify", "--surface", surface, "--title", title, "--body", body]);
  } catch {
    return false;
  }
}