/**
 * useCopyToClipboard Hook
 * 
 * Wrapper for Clipboard API with success/error handling and toast notifications.
 * 
 * Features:
 * - Copy text to clipboard
 * - Success/error state tracking
 * - Automatic toast notifications
 * - Fallback for older browsers
 */

import { useState } from 'react';
import { toast } from 'sonner';

interface CopyToClipboardResult {
  copy: (text: string, successMessage?: string) => Promise<void>;
  isCopied: boolean;
  error: Error | null;
}

export function useCopyToClipboard(): CopyToClipboardResult {
  const [isCopied, setIsCopied] = useState(false);
  const [error, setError] = useState<Error | null>(null);

  const copy = async (text: string, successMessage: string = 'Copied to clipboard') => {
    // Reset state
    setIsCopied(false);
    setError(null);

    try {
      // Modern Clipboard API
      if (navigator.clipboard && window.isSecureContext) {
        await navigator.clipboard.writeText(text);
      } else {
        // Fallback for older browsers or non-secure contexts
        const textArea = document.createElement('textarea');
        textArea.value = text;
        textArea.style.position = 'fixed';
        textArea.style.left = '-999999px';
        textArea.style.top = '-999999px';
        document.body.appendChild(textArea);
        textArea.focus();
        textArea.select();
        
        const successful = document.execCommand('copy');
        textArea.remove();
        
        if (!successful) {
          throw new Error('Copy command failed');
        }
      }

      setIsCopied(true);
      toast.success(successMessage);

      // Reset isCopied after 2 seconds
      setTimeout(() => {
        setIsCopied(false);
      }, 2000);
    } catch (err) {
      const copyError = err instanceof Error ? err : new Error('Failed to copy');
      setError(copyError);
      toast.error('Failed to copy to clipboard');
      console.error('Copy error:', copyError);
    }
  };

  return { copy, isCopied, error };
}