import { useEffect, useState } from "react";

const TERMINAL_PADDING_X = 8;

export function useTerminalSize(): { columns: number; rows: number } {
  const [size, setSize] = useState({
    columns: (process.stdout.columns || 60) - TERMINAL_PADDING_X,
    rows: process.stdout.rows || 20,
  });

  useEffect(() => {
    function updateSize() {
      setSize({
        columns: (process.stdout.columns || 60) - TERMINAL_PADDING_X,
        rows: process.stdout.rows || 20,
      });
    }

    process.stdout.on("resize", updateSize);
    return () => {
      process.stdout.off("resize", updateSize);
    };
  }, []);

  return size;
}