// ============================================================
// useDebounce — 防抖 hook
// ============================================================

import { useState, useEffect } from 'react'

export function useDebounce<T>(value: T, delay = 300): T {
  const [debouncedValue, setDebouncedValue] = useState<T>(value)

  useEffect(() => {
    const handler = setTimeout(() => setDebouncedValue(value), delay)
    return () => clearTimeout(handler)
  }, [value, delay])

  return debouncedValue
}