// ── Keyboard input via blessed ────────────────────────
import type blessed from "blessed";

export type Key =
  | "h"
  | "s"
  | "n"
  | "up"
  | "down"
  | "q";

/** Wire blessed screen key events to a callback. */
export function startInput(
  screen: blessed.Widgets.Screen,
  onKey: (key: Key) => void,
): void {
  screen.key(
    ["h", "s", "n", "up", "down", "q", "C-c"],
    (_ch, key) => {
      if (key.name === "q" || key.name === "C-c") {
        screen.destroy();
        process.exit(0);
      }
      onKey(key.name as Key);
    },
  );
}