import { useCallback, useEffect, useRef, useState } from 'react';

import { copyTextToClipboard } from '../../services/clipboard';

export type CopyFeedbackState = 'idle' | 'copied' | 'failed';

type UseCopyFeedbackOptions = {
  resetDelayMs?: number;
};

/**
 * 统一剪贴板复制反馈。
 * 复制实现、成功/失败状态和定时复位集中在这里，调用方只负责渲染按钮文案。
 */
export function useCopyFeedback({
  resetDelayMs = 1400,
}: UseCopyFeedbackOptions = {}) {
  const [copyState, setCopyState] = useState<CopyFeedbackState>('idle');
  const resetTimerRef = useRef<number | null>(null);

  const clearResetTimer = useCallback(() => {
    if (resetTimerRef.current !== null) {
      window.clearTimeout(resetTimerRef.current);
      resetTimerRef.current = null;
    }
  }, []);

  const resetCopyState = useCallback(() => {
    clearResetTimer();
    setCopyState('idle');
  }, [clearResetTimer]);

  const copyText = useCallback(
    async (value: string) => {
      const copied = await copyTextToClipboard(value);
      setCopyState(copied ? 'copied' : 'failed');
      clearResetTimer();
      resetTimerRef.current = window.setTimeout(() => {
        resetTimerRef.current = null;
        setCopyState('idle');
      }, resetDelayMs);
      return copied;
    },
    [clearResetTimer, resetDelayMs],
  );

  useEffect(() => resetCopyState, [resetCopyState]);

  return {
    copyState,
    copyText,
    resetCopyState,
  };
}