'use client';

import { useState } from 'react';
import { useRouter } from 'next/navigation';
import { DocumentArrowUpIcon, CheckCircleIcon, XCircleIcon } from '@heroicons/react/24/outline';
import Button from '@/components/ui/Button';
import { Input } from '@/components/ui/Input';
import ImportLayout from '@/components/layout/ImportLayout';
import AuthorSelector from '@/components/stories/AuthorSelector';
import SeriesSelector from '@/components/stories/SeriesSelector';

type FileType = 'epub' | 'pdf' | 'zip' | null;

interface ImportResponse {
  success: boolean;
  message: string;
  storyId?: string;
  storyTitle?: string;
  fileName?: string;
  fileType?: string;
  wordCount?: number;
  extractedImages?: number;
  warnings?: string[];
  errors?: string[];
}

interface ZIPAnalysisResponse {
  success: boolean;
  message: string;
  zipFileName?: string;
  totalFiles?: number;
  validFiles?: number;
  files?: FileInfo[];
  warnings?: string[];
}

interface FileInfo {
  fileName: string;
  fileType: string;
  fileSize: number;
  extractedTitle?: string;
  extractedAuthor?: string;
  hasMetadata: boolean;
  error?: string;
}

interface ZIPImportResponse {
  success: boolean;
  message: string;
  totalFiles: number;
  successfulImports: number;
  failedImports: number;
  results: ImportResponse[];
  warnings?: string[];
}

export default function FileImportPage() {
  const router = useRouter();
  const [selectedFile, setSelectedFile] = useState<File | null>(null);
  const [fileType, setFileType] = useState<FileType>(null);
  const [isLoading, setIsLoading] = useState(false);
  const [isValidating, setIsValidating] = useState(false);
  const [validationResult, setValidationResult] = useState<any>(null);
  const [importResult, setImportResult] = useState<ImportResponse | null>(null);
  const [error, setError] = useState<string | null>(null);

  // ZIP-specific state
  const [zipAnalysis, setZipAnalysis] = useState<ZIPAnalysisResponse | null>(null);
  const [zipSessionId, setZipSessionId] = useState<string | null>(null);
  const [selectedZipFiles, setSelectedZipFiles] = useState<Set<string>>(new Set());
  const [fileMetadata, setFileMetadata] = useState<Map<string, any>>(new Map());
  const [zipImportResult, setZipImportResult] = useState<ZIPImportResponse | null>(null);

  // Import options
  const [authorName, setAuthorName] = useState<string>('');
  const [authorId, setAuthorId] = useState<string | undefined>(undefined);
  const [seriesName, setSeriesName] = useState<string>('');
  const [seriesId, setSeriesId] = useState<string | undefined>(undefined);
  const [seriesVolume, setSeriesVolume] = useState<string>('');
  const [tags, setTags] = useState<string>('');
  const [createMissingAuthor, setCreateMissingAuthor] = useState(true);
  const [createMissingSeries, setCreateMissingSeries] = useState(true);
  const [extractImages, setExtractImages] = useState(true);
  const [preserveReadingPosition, setPreserveReadingPosition] = useState(true);

  const detectFileType = (file: File): FileType => {
    const filename = file.name.toLowerCase();
    if (filename.endsWith('.epub')) return 'epub';
    if (filename.endsWith('.pdf')) return 'pdf';
    if (filename.endsWith('.zip')) return 'zip';
    return null;
  };

  const handleFileChange = async (e: React.ChangeEvent<HTMLInputElement>) => {
    const file = e.target.files?.[0];
    if (file) {
      setSelectedFile(file);
      setValidationResult(null);
      setImportResult(null);
      setZipAnalysis(null);
      setZipSessionId(null);
      setSelectedZipFiles(new Set());
      setZipImportResult(null);
      setError(null);

      const detectedType = detectFileType(file);
      setFileType(detectedType);

      if (!detectedType) {
        setError('Unsupported file type. Please select an EPUB, PDF, or ZIP file.');
        return;
      }

      if (detectedType === 'zip') {
        await analyzeZipFile(file);
      } else {
        await validateFile(file, detectedType);
      }
    }
  };

  const validateFile = async (file: File, type: FileType) => {
    if (type === 'zip') return; // ZIP has its own analysis flow

    setIsValidating(true);
    try {
      const token = localStorage.getItem('auth-token');
      const formData = new FormData();
      formData.append('file', file);

      const endpoint = type === 'epub' ? '/api/stories/epub/validate' : '/api/stories/pdf/validate';
      const response = await fetch(endpoint, {
        method: 'POST',
        headers: {
          'Authorization': token ? `Bearer ${token}` : '',
        },
        body: formData,
      });

      if (response.ok) {
        const result = await response.json();
        setValidationResult(result);
        if (!result.valid) {
          setError(`${type?.toUpperCase() || 'File'} validation failed: ` + result.errors.join(', '));
        }
      } else if (response.status === 401 || response.status === 403) {
        setError('Authentication required. Please log in.');
      } else {
        setError(`Failed to validate ${type?.toUpperCase() || 'file'}`);
      }
    } catch (err) {
      setError(`Error validating ${type?.toUpperCase() || 'file'}: ` + (err as Error).message);
    } finally {
      setIsValidating(false);
    }
  };

  const analyzeZipFile = async (file: File) => {
    setIsLoading(true);
    try {
      const token = localStorage.getItem('auth-token');
      const formData = new FormData();
      formData.append('file', file);

      const response = await fetch('/api/stories/zip/analyze', {
        method: 'POST',
        headers: {
          'Authorization': token ? `Bearer ${token}` : '',
        },
        body: formData,
      });

      if (response.ok) {
        const result: ZIPAnalysisResponse = await response.json();
        setZipAnalysis(result);

        if (result.success && result.warnings && result.warnings.length > 0) {
          // Extract session ID from warnings
          const sessionWarning = result.warnings.find(w => w.includes('Session ID:'));
          if (sessionWarning) {
            const match = sessionWarning.match(/Session ID: ([a-f0-9-]+)/);
            if (match) {
              setZipSessionId(match[1]);
            }
          }
        }

        if (!result.success) {
          setError(result.message);
        } else if (result.files && result.files.length === 0) {
          setError('No valid EPUB or PDF files found in ZIP');
        }
      } else if (response.status === 401 || response.status === 403) {
        setError('Authentication required. Please log in.');
      } else {
        setError('Failed to analyze ZIP file');
      }
    } catch (err) {
      setError('Error analyzing ZIP file: ' + (err as Error).message);
    } finally {
      setIsLoading(false);
    }
  };

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();

    if (!selectedFile) {
      setError('Please select a file');
      return;
    }

    if (fileType === 'zip') {
      await handleZipImport();
      return;
    }

    if (validationResult && !validationResult.valid) {
      setError(`Cannot import invalid ${fileType?.toUpperCase()} file`);
      return;
    }

    // Check PDF requires author
    if (fileType === 'pdf' && !authorName.trim()) {
      setError('PDF import requires an author name. Please provide an author name or ensure the PDF has author metadata.');
      return;
    }

    setIsLoading(true);
    setError(null);

    try {
      const token = localStorage.getItem('auth-token');
      const formData = new FormData();
      formData.append('file', selectedFile);

      if (authorId) {
        formData.append('authorId', authorId);
      } else if (authorName) {
        formData.append('authorName', authorName);
      }
      if (seriesId) {
        formData.append('seriesId', seriesId);
      } else if (seriesName) {
        formData.append('seriesName', seriesName);
      }
      if (seriesVolume) formData.append('seriesVolume', seriesVolume);
      if (tags) {
        const tagList = tags.split(',').map(t => t.trim()).filter(t => t.length > 0);
        tagList.forEach(tag => formData.append('tags', tag));
      }

      formData.append('createMissingAuthor', createMissingAuthor.toString());
      formData.append('createMissingSeries', createMissingSeries.toString());

      if (fileType === 'epub') {
        formData.append('preserveReadingPosition', preserveReadingPosition.toString());
      } else if (fileType === 'pdf') {
        formData.append('extractImages', extractImages.toString());
      }

      const endpoint = fileType === 'epub' ? '/api/stories/epub/import' : '/api/stories/pdf/import';
      const response = await fetch(endpoint, {
        method: 'POST',
        headers: {
          'Authorization': token ? `Bearer ${token}` : '',
        },
        body: formData,
      });

      const result = await response.json();

      if (response.ok && result.success) {
        setImportResult(result);
      } else if (response.status === 401 || response.status === 403) {
        setError('Authentication required. Please log in.');
      } else {
        setError(result.message || `Failed to import ${fileType?.toUpperCase()}`);
      }
    } catch (err) {
      setError(`Error importing ${fileType?.toUpperCase()}: ` + (err as Error).message);
    } finally {
      setIsLoading(false);
    }
  };

  const handleZipImport = async () => {
    if (!zipSessionId) {
      setError('ZIP session expired. Please re-upload the ZIP file.');
      return;
    }

    if (selectedZipFiles.size === 0) {
      setError('Please select at least one file to import');
      return;
    }

    setIsLoading(true);
    setError(null);

    try {
      const token = localStorage.getItem('auth-token');

      const requestBody: any = {
        zipSessionId: zipSessionId,
        selectedFiles: Array.from(selectedZipFiles),
        defaultAuthorId: authorId || undefined,
        defaultAuthorName: authorName || undefined,
        defaultSeriesId: seriesId || undefined,
        defaultSeriesName: seriesName || undefined,
        defaultTags: tags ? tags.split(',').map(t => t.trim()).filter(t => t.length > 0) : undefined,
        createMissingAuthor,
        createMissingSeries,
        extractImages,
      };

      // Add per-file metadata if any
      if (fileMetadata.size > 0) {
        const metadata: any = {};
        fileMetadata.forEach((value, key) => {
          metadata[key] = value;
        });
        requestBody.fileMetadata = metadata;
      }

      const response = await fetch('/api/stories/zip/import', {
        method: 'POST',
        headers: {
          'Authorization': token ? `Bearer ${token}` : '',
          'Content-Type': 'application/json',
        },
        body: JSON.stringify(requestBody),
      });

      const result: ZIPImportResponse = await response.json();

      if (response.ok) {
        setZipImportResult(result);
      } else if (response.status === 401 || response.status === 403) {
        setError('Authentication required. Please log in.');
      } else {
        setError(result.message || 'Failed to import files from ZIP');
      }
    } catch (err) {
      setError('Error importing from ZIP: ' + (err as Error).message);
    } finally {
      setIsLoading(false);
    }
  };

  const toggleZipFileSelection = (fileName: string) => {
    const newSelection = new Set(selectedZipFiles);
    if (newSelection.has(fileName)) {
      newSelection.delete(fileName);
    } else {
      newSelection.add(fileName);
    }
    setSelectedZipFiles(newSelection);
  };

  const selectAllZipFiles = () => {
    if (zipAnalysis?.files) {
      const validFiles = zipAnalysis.files.filter(f => !f.error);
      setSelectedZipFiles(new Set(validFiles.map(f => f.fileName)));
    }
  };

  const deselectAllZipFiles = () => {
    setSelectedZipFiles(new Set());
  };

  const resetForm = () => {
    setSelectedFile(null);
    setFileType(null);
    setValidationResult(null);
    setImportResult(null);
    setZipAnalysis(null);
    setZipSessionId(null);
    setSelectedZipFiles(new Set());
    setFileMetadata(new Map());
    setZipImportResult(null);
    setError(null);
    setAuthorName('');
    setAuthorId(undefined);
    setSeriesName('');
    setSeriesId(undefined);
    setSeriesVolume('');
    setTags('');
  };

  const handleAuthorChange = (name: string, id?: string) => {
    setAuthorName(name);
    setAuthorId(id);
  };

  const handleSeriesChange = (name: string, id?: string) => {
    setSeriesName(name);
    setSeriesId(id);
  };

  // Show success screen for single file import
  if (importResult?.success) {
    return (
      <ImportLayout
        title="Import Successful"
        description="Your file has been successfully imported into StoryCove"
      >
        <div className="space-y-6">
          <div className="bg-green-50 dark:bg-green-900/20 border border-green-200 dark:border-green-800 rounded-lg p-6">
            <h2 className="text-xl font-semibold text-green-600 dark:text-green-400 mb-2">Import Completed</h2>
            <p className="theme-text">
              Your {importResult.fileType || fileType?.toUpperCase()} file has been successfully imported.
            </p>
          </div>

          <div className="theme-card theme-shadow rounded-lg p-6">
            <div className="space-y-4">
              <div>
                <span className="font-semibold theme-header">Story Title:</span>
                <p className="theme-text">{importResult.storyTitle}</p>
              </div>

              {importResult.wordCount && (
                <div>
                  <span className="font-semibold theme-header">Word Count:</span>
                  <p className="theme-text">{importResult.wordCount.toLocaleString()} words</p>
                </div>
              )}

              {importResult.extractedImages !== undefined && importResult.extractedImages > 0 && (
                <div>
                  <span className="font-semibold theme-header">Extracted Images:</span>
                  <p className="theme-text">{importResult.extractedImages}</p>
                </div>
              )}

              {importResult.warnings && importResult.warnings.length > 0 && (
                <div className="bg-yellow-50 dark:bg-yellow-900/20 border border-yellow-200 dark:border-yellow-800 rounded-lg p-4">
                  <strong className="text-yellow-800 dark:text-yellow-200">Warnings:</strong>
                  <ul className="list-disc list-inside mt-2 text-yellow-700 dark:text-yellow-300">
                    {importResult.warnings.map((warning, index) => (
                      <li key={index}>{warning}</li>
                    ))}
                  </ul>
                </div>
              )}

              <div className="flex gap-4 mt-6">
                <Button
                  onClick={() => router.push(`/stories/${importResult.storyId}`)}
                >
                  View Story
                </Button>
                <Button
                  onClick={resetForm}
                  variant="secondary"
                >
                  Import Another File
                </Button>
              </div>
            </div>
          </div>
        </div>
      </ImportLayout>
    );
  }

  // Show success screen for ZIP import
  if (zipImportResult) {
    return (
      <ImportLayout
        title="ZIP Import Complete"
        description="Import results from your ZIP file"
      >
        <div className="space-y-6">
          <div className={`border rounded-lg p-6 ${
            zipImportResult.failedImports === 0
              ? 'bg-green-50 dark:bg-green-900/20 border-green-200 dark:border-green-800'
              : 'bg-yellow-50 dark:bg-yellow-900/20 border-yellow-200 dark:border-yellow-800'
          }`}>
            <h2 className={`text-xl font-semibold mb-2 ${
              zipImportResult.failedImports === 0
                ? 'text-green-600 dark:text-green-400'
                : 'text-yellow-600 dark:text-yellow-400'
            }`}>
              {zipImportResult.message}
            </h2>
            <p className="theme-text">
              {zipImportResult.successfulImports} of {zipImportResult.totalFiles} files imported successfully
            </p>
          </div>

          <div className="theme-card theme-shadow rounded-lg p-6">
            <h3 className="text-lg font-semibold theme-header mb-4">Import Results</h3>
            <div className="space-y-3">
              {zipImportResult.results.map((result, index) => (
                <div key={index} className={`p-4 rounded-lg border ${
                  result.success
                    ? 'bg-green-50 dark:bg-green-900/10 border-green-200 dark:border-green-800'
                    : 'bg-red-50 dark:bg-red-900/10 border-red-200 dark:border-red-800'
                }`}>
                  <div className="flex items-start gap-3">
                    {result.success ? (
                      <CheckCircleIcon className="h-5 w-5 text-green-600 dark:text-green-400 flex-shrink-0 mt-0.5" />
                    ) : (
                      <XCircleIcon className="h-5 w-5 text-red-600 dark:text-red-400 flex-shrink-0 mt-0.5" />
                    )}
                    <div className="flex-1">
                      <p className="font-medium theme-header">
                        {result.fileName || result.storyTitle || 'Unknown file'}
                      </p>
                      {result.success && result.storyTitle && (
                        <p className="text-sm theme-text">
                          Imported as: {result.storyTitle}
                          {result.storyId && (
                            <button
                              onClick={() => router.push(`/stories/${result.storyId}`)}
                              className="ml-2 text-xs text-blue-600 dark:text-blue-400 hover:underline"
                            >
                              View
                            </button>
                          )}
                        </p>
                      )}
                      {!result.success && (
                        <p className="text-sm text-red-600 dark:text-red-400">{result.message}</p>
                      )}
                    </div>
                  </div>
                </div>
              ))}
            </div>

            <div className="flex gap-4 mt-6">
              <Button
                onClick={() => router.push('/library')}
              >
                Go to Library
              </Button>
              <Button
                onClick={resetForm}
                variant="secondary"
              >
                Import Another File
              </Button>
            </div>
          </div>
        </div>
      </ImportLayout>
    );
  }

  return (
    <ImportLayout
      title="Import from File"
      description="Upload an EPUB, PDF, or ZIP file to import stories into your library"
    >
      {error && (
        <div className="bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg p-4 mb-6">
          <p className="text-red-800 dark:text-red-200">{error}</p>
        </div>
      )}

      <form onSubmit={handleSubmit} className="space-y-6">
        {/* File Upload */}
        <div className="theme-card theme-shadow rounded-lg p-6">
          <div className="mb-4">
            <h3 className="text-lg font-semibold theme-header mb-2">Select File</h3>
            <p className="theme-text">
              Choose an EPUB, PDF, or ZIP file from your device to import.
            </p>
          </div>
          <div className="space-y-4">
            <div>
              <label htmlFor="import-file" className="block text-sm font-medium theme-header mb-1">
                File (EPUB, PDF, or ZIP)
              </label>
              <Input
                id="import-file"
                type="file"
                accept=".epub,.pdf,.zip,application/epub+zip,application/pdf,application/zip"
                onChange={handleFileChange}
                disabled={isLoading || isValidating}
              />
            </div>

            {selectedFile && (
              <div className="flex items-center gap-2">
                <DocumentArrowUpIcon className="h-5 w-5 theme-text" />
                <span className="text-sm theme-text">
                  {selectedFile.name} ({(selectedFile.size / 1024 / 1024).toFixed(2)} MB)
                  {fileType && <span className="ml-2 inline-flex items-center px-2 py-1 rounded text-xs font-medium bg-blue-100 dark:bg-blue-900/20 text-blue-800 dark:text-blue-200">
                    {fileType.toUpperCase()}
                  </span>}
                </span>
              </div>
            )}

            {isValidating && (
              <div className="text-sm theme-accent">
                Validating file...
              </div>
            )}

            {validationResult && fileType !== 'zip' && (
              <div className="text-sm">
                {validationResult.valid ? (
                  <span className="inline-flex items-center px-2 py-1 rounded text-xs font-medium bg-green-100 dark:bg-green-900/20 text-green-800 dark:text-green-200">
                    Valid {fileType?.toUpperCase()}
                  </span>
                ) : (
                  <span className="inline-flex items-center px-2 py-1 rounded text-xs font-medium bg-red-100 dark:bg-red-900/20 text-red-800 dark:text-red-200">
                    Invalid {fileType?.toUpperCase()}
                  </span>
                )}
              </div>
            )}
          </div>
        </div>

        {/* ZIP File Selection */}
        {fileType === 'zip' && zipAnalysis?.success && zipAnalysis.files && (
          <div className="theme-card theme-shadow rounded-lg p-6">
            <div className="mb-4 flex items-center justify-between">
              <div>
                <h3 className="text-lg font-semibold theme-header mb-2">Select Files to Import</h3>
                <p className="theme-text">
                  {zipAnalysis.validFiles} valid files found in ZIP ({zipAnalysis.totalFiles} total)
                </p>
              </div>
              <div className="flex gap-2">
                <Button
                  type="button"
                  variant="secondary"
                  size="sm"
                  onClick={selectAllZipFiles}
                >
                  Select All
                </Button>
                <Button
                  type="button"
                  variant="ghost"
                  size="sm"
                  onClick={deselectAllZipFiles}
                >
                  Deselect All
                </Button>
              </div>
            </div>
            <div className="space-y-2 max-h-96 overflow-y-auto">
              {zipAnalysis.files.map((file, index) => (
                <div
                  key={index}
                  className={`p-3 rounded-lg border ${
                    file.error
                      ? 'bg-red-50 dark:bg-red-900/10 border-red-200 dark:border-red-800 opacity-50'
                      : selectedZipFiles.has(file.fileName)
                      ? 'bg-blue-50 dark:bg-blue-900/10 border-blue-300 dark:border-blue-700'
                      : 'theme-card border-gray-200 dark:border-gray-700'
                  }`}
                >
                  <div className="flex items-start gap-3">
                    {!file.error && (
                      <input
                        type="checkbox"
                        checked={selectedZipFiles.has(file.fileName)}
                        onChange={() => toggleZipFileSelection(file.fileName)}
                        className="mt-1"
                      />
                    )}
                    <div className="flex-1">
                      <p className="font-medium theme-header">{file.fileName}</p>
                      <p className="text-xs theme-text mt-1">
                        {file.fileType} • {(file.fileSize / 1024).toFixed(2)} KB
                        {file.extractedTitle && ` • ${file.extractedTitle}`}
                      </p>
                      {file.error && (
                        <p className="text-xs text-red-600 dark:text-red-400 mt-1">{file.error}</p>
                      )}
                    </div>
                  </div>
                </div>
              ))}
            </div>
          </div>
        )}

        {/* Import Options - Show for all file types */}
        {fileType && (!zipAnalysis || (zipAnalysis && selectedZipFiles.size > 0)) && (
          <div className="theme-card theme-shadow rounded-lg p-6">
            <div className="mb-4">
              <h3 className="text-lg font-semibold theme-header mb-2">Import Options</h3>
              <p className="theme-text">
                Configure how the {fileType === 'zip' ? 'files' : 'file'} should be imported.
                {fileType === 'zip' && ' These settings apply to all selected files.'}
              </p>
            </div>
            <div className="space-y-4">
              <AuthorSelector
                value={authorName}
                onChange={handleAuthorChange}
                placeholder={fileType === 'epub' ? 'Leave empty to use file metadata' : 'Required for PDF import'}
                required={fileType === 'pdf'}
                label={`Author${fileType === 'pdf' ? ' *' : ''}${fileType === 'zip' ? ' (Default)' : ''}`}
                error={fileType === 'pdf' && !authorName ? 'PDF import requires an author name. Select an existing author or enter a new one.' : undefined}
              />

              <SeriesSelector
                value={seriesName}
                onChange={handleSeriesChange}
                placeholder="Optional: Add to a series"
                label={`Series${fileType === 'zip' ? ' (Default)' : ''}`}
                authorId={authorId}
              />

              {seriesName && (
                <div>
                  <label htmlFor="series-volume" className="block text-sm font-medium theme-header mb-1">Series Volume</label>
                  <Input
                    id="series-volume"
                    type="number"
                    value={seriesVolume}
                    onChange={(e) => setSeriesVolume(e.target.value)}
                    placeholder="Volume number in series"
                  />
                </div>
              )}

              <div>
                <label htmlFor="tags" className="block text-sm font-medium theme-header mb-1">
                  Tags {fileType === 'zip' && '(Default)'}
                </label>
                <Input
                  id="tags"
                  value={tags}
                  onChange={(e) => setTags(e.target.value)}
                  placeholder="Comma-separated tags (e.g., fantasy, adventure, romance)"
                />
              </div>

              <div className="space-y-3">
                {fileType === 'epub' && (
                  <div className="flex items-center">
                    <input
                      type="checkbox"
                      id="preserve-reading-position"
                      checked={preserveReadingPosition}
                      onChange={(e) => setPreserveReadingPosition(e.target.checked)}
                      className="mr-2"
                    />
                    <label htmlFor="preserve-reading-position" className="text-sm theme-text">
                      Preserve reading position from EPUB metadata
                    </label>
                  </div>
                )}

                {(fileType === 'pdf' || fileType === 'zip') && (
                  <div className="flex items-center">
                    <input
                      type="checkbox"
                      id="extract-images"
                      checked={extractImages}
                      onChange={(e) => setExtractImages(e.target.checked)}
                      className="mr-2"
                    />
                    <label htmlFor="extract-images" className="text-sm theme-text">
                      Extract and store embedded images from PDFs
                    </label>
                  </div>
                )}

                <div className="flex items-center">
                  <input
                    type="checkbox"
                    id="create-missing-author"
                    checked={createMissingAuthor}
                    onChange={(e) => setCreateMissingAuthor(e.target.checked)}
                    className="mr-2"
                  />
                  <label htmlFor="create-missing-author" className="text-sm theme-text">
                    Create author if not found
                  </label>
                </div>

                <div className="flex items-center">
                  <input
                    type="checkbox"
                    id="create-missing-series"
                    checked={createMissingSeries}
                    onChange={(e) => setCreateMissingSeries(e.target.checked)}
                    className="mr-2"
                  />
                  <label htmlFor="create-missing-series" className="text-sm theme-text">
                    Create series if not found
                  </label>
                </div>
              </div>
            </div>
          </div>
        )}

        {/* Submit Button */}
        {fileType && fileType !== 'zip' && (
          <div className="flex justify-end">
            <Button
              type="submit"
              disabled={!selectedFile || isLoading || isValidating || (validationResult && !validationResult.valid)}
              loading={isLoading}
            >
              {isLoading ? 'Importing...' : `Import ${fileType.toUpperCase()}`}
            </Button>
          </div>
        )}

        {fileType === 'zip' && zipAnalysis?.success && (
          <div className="flex justify-end">
            <Button
              type="submit"
              disabled={selectedZipFiles.size === 0 || isLoading}
              loading={isLoading}
            >
              {isLoading ? 'Importing...' : `Import ${selectedZipFiles.size} File${selectedZipFiles.size !== 1 ? 's' : ''}`}
            </Button>
          </div>
        )}
      </form>
    </ImportLayout>
  );
}
