/**
 * BulkAddConfirmation - Confirmation modal for bulk adding keywords
 * Shows preview of keywords to be added and handles the bulk add action
 */

import { useState } from 'react';
import { Modal } from '../ui/modal';
import Button from '../ui/button/Button';
import { PlusIcon, CheckCircleIcon, AlertIcon } from '../../icons';
import { Spinner } from '../ui/spinner/Spinner';

interface BulkAddConfirmationProps {
  isOpen: boolean;
  onClose: () => void;
  onConfirm: () => Promise<{ added: number; skipped: number; total_requested: number }>;
  keywordCount: number;
  sectorName?: string;
  statTypeLabel?: string;
}

export default function BulkAddConfirmation({
  isOpen,
  onClose,
  onConfirm,
  keywordCount,
  sectorName,
  statTypeLabel,
}: BulkAddConfirmationProps) {
  const [isAdding, setIsAdding] = useState(false);
  const [result, setResult] = useState<{ added: number; skipped: number; total_requested: number } | null>(null);
  const [error, setError] = useState<string | null>(null);

  const handleConfirm = async () => {
    setIsAdding(true);
    setError(null);
    
    try {
      const response = await onConfirm();
      setResult(response);
    } catch (err: any) {
      setError(err.message || 'Failed to add keywords');
    } finally {
      setIsAdding(false);
    }
  };

  const handleClose = () => {
    setResult(null);
    setError(null);
    onClose();
  };

  // Success state
  if (result) {
    return (
      <Modal isOpen={isOpen} onClose={handleClose} showCloseButton={true}>
        <div className="p-6 text-center">
          <div className="mx-auto w-14 h-14 rounded-full bg-success-100 dark:bg-success-900/30 flex items-center justify-center mb-4">
            <CheckCircleIcon className="w-8 h-8 text-success-600 dark:text-success-400" />
          </div>
          
          <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-2">
            Keywords Added Successfully!
          </h3>
          
          <div className="space-y-2 mb-6">
            <p className="text-3xl font-bold text-success-600 dark:text-success-400">
              {result.added}
            </p>
            <p className="text-sm text-gray-500 dark:text-gray-400">
              keywords added to your site
            </p>
            
            {result.skipped > 0 && (
              <p className="text-sm text-amber-600 dark:text-amber-400">
                {result.skipped} keywords were skipped (already exist)
              </p>
            )}
          </div>
          
          <Button onClick={handleClose} variant="primary">
            Done
          </Button>
        </div>
      </Modal>
    );
  }

  // Error state
  if (error) {
    return (
      <Modal isOpen={isOpen} onClose={handleClose} showCloseButton={true}>
        <div className="p-6 text-center">
          <div className="mx-auto w-14 h-14 rounded-full bg-error-100 dark:bg-error-900/30 flex items-center justify-center mb-4">
            <AlertIcon className="w-8 h-8 text-error-600 dark:text-error-400" />
          </div>
          
          <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-2">
            Failed to Add Keywords
          </h3>
          
          <p className="text-sm text-gray-500 dark:text-gray-400 mb-6">
            {error}
          </p>
          
          <div className="flex gap-3 justify-center">
            <Button onClick={handleClose} variant="outline">
              Close
            </Button>
            <Button onClick={handleConfirm} variant="primary">
              Try Again
            </Button>
          </div>
        </div>
      </Modal>
    );
  }

  // Confirmation state
  return (
    <Modal isOpen={isOpen} onClose={handleClose} showCloseButton={!isAdding}>
      <div className="p-6">
        <div className="text-center mb-6">
          <div className="mx-auto w-14 h-14 rounded-full bg-brand-100 dark:bg-brand-900/30 flex items-center justify-center mb-4">
            <PlusIcon className="w-8 h-8 text-brand-600 dark:text-brand-400" />
          </div>
          
          <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-2">
            Add Keywords to Your Site
          </h3>
          
          <p className="text-sm text-gray-500 dark:text-gray-400">
            You're about to add keywords to your site's keyword list.
          </p>
        </div>
        
        {/* Summary */}
        <div className="bg-gray-50 dark:bg-gray-800/50 rounded-lg p-4 mb-6">
          <div className="flex items-center justify-between mb-2">
            <span className="text-sm text-gray-600 dark:text-gray-400">Keywords to add:</span>
            <span className="text-lg font-bold text-gray-900 dark:text-white">{keywordCount}</span>
          </div>
          
          {sectorName && (
            <div className="flex items-center justify-between mb-2">
              <span className="text-sm text-gray-600 dark:text-gray-400">Sector:</span>
              <span className="text-sm font-medium text-gray-900 dark:text-white">{sectorName}</span>
            </div>
          )}
          
          {statTypeLabel && (
            <div className="flex items-center justify-between">
              <span className="text-sm text-gray-600 dark:text-gray-400">Category:</span>
              <span className="text-sm font-medium text-gray-900 dark:text-white">{statTypeLabel}</span>
            </div>
          )}
        </div>
        
        {/* Actions */}
        <div className="flex gap-3 justify-end">
          <Button onClick={handleClose} variant="outline" disabled={isAdding}>
            Cancel
          </Button>
          <Button 
            onClick={handleConfirm} 
            variant="primary"
            disabled={isAdding}
          >
            {isAdding ? (
              <span className="flex items-center gap-2">
                <Spinner size="sm" />
                Adding...
              </span>
            ) : (
              <span className="flex items-center gap-2">
                <PlusIcon className="w-4 h-4" />
                Add {keywordCount} Keywords
              </span>
            )}
          </Button>
        </div>
      </div>
    </Modal>
  );
}