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* PresentationUpload Component
* Story 6.3: Speaker Content Self-Submission Portal - AC7 (File Upload)
*
* Features:
* - Drag-and-drop support (AC7.1)
* - Click to browse (AC7.2)
* - File type validation - PPTX, PDF, KEY (AC7.3)
* - File size validation - max 50MB (AC7.4)
* - Upload uses presigned URL (AC7.5)
* - Progress indicator during upload (AC7.6)
*/
import { useState, useCallback, useRef, useEffect } from 'react';
import { useTranslation } from 'react-i18next';
import { Upload, FileText, X, AlertCircle, ExternalLink } from 'lucide-react';
import { BATbernLoader } from '@components/shared/BATbernLoader';
import { speakerPortalService } from '@/services/speakerPortalService';
// Constants
const MAX_FILE_SIZE = 50 * 1024 * 1024; // 50MB (AC7.4)
const ALLOWED_TYPES = [
'application/vnd.openxmlformats-officedocument.presentationml.presentation', // PPTX
'application/vnd.ms-powerpoint', // PPT
'application/pdf', // PDF
'application/x-iwork-keynote-sffkey', // Keynote (KEY)
'application/vnd.apple.keynote', // Keynote alternative MIME
]; // (AC7.3)
const ALLOWED_EXTENSIONS = ['pptx', 'ppt', 'pdf', 'key'];
interface PresentationUploadProps {
/** Story 11.E.3: event code (replaces magic-link token; Cognito session is automatic) */
eventCode: string;
/** Current material URL (null if none) */
currentMaterialUrl: string | null;
/** Current material file name (null if none) */
currentMaterialName: string | null;
/** Callback when material is successfully uploaded */
onMaterialUploaded: (url: string, fileName: string) => void;
/** Callback when an error occurs */
onError: (error: { type: string; message: string }) => void;
}
/**
* Presentation material upload component with drag-and-drop support.
* Uses presigned URL pattern for direct S3 upload.
*/
const PresentationUpload = ({
eventCode,
currentMaterialUrl,
currentMaterialName,
onMaterialUploaded,
onError,
}: PresentationUploadProps) => {
const { t } = useTranslation();
// State
const [isUploading, setIsUploading] = useState(false);
const [uploadProgress, setUploadProgress] = useState(0);
const [error, setError] = useState<string | null>(null);
const [isDragging, setIsDragging] = useState(false);
const [selectedFileName, setSelectedFileName] = useState<string | null>(null);
const [showDropzone, setShowDropzone] = useState(!currentMaterialUrl);
// Refs
const fileInputRef = useRef<HTMLInputElement>(null);
const dropzoneRef = useRef<HTMLDivElement>(null);
// Update showDropzone when currentMaterialUrl changes
useEffect(() => {
if (currentMaterialUrl && !isUploading) {
setShowDropzone(false);
}
}, [currentMaterialUrl, isUploading]);
/**
* Get file extension from filename
*/
const getFileExtension = (fileName: string): string => {
return fileName.split('.').pop()?.toLowerCase() || '';
};
/**
* Validate file type and size
*/
const validateFile = useCallback(
(file: File): boolean => {
// Validate file type (AC7.3)
const extension = getFileExtension(file.name);
const isValidType =
ALLOWED_TYPES.includes(file.type) || ALLOWED_EXTENSIONS.includes(extension);
if (!isValidType) {
const errorMsg = t('speakerPortal.upload.invalidFileType');
setError(errorMsg);
onError({ type: 'INVALID_FILE_TYPE', message: errorMsg });
return false;
}
// Validate file size (AC7.4)
if (file.size > MAX_FILE_SIZE) {
const errorMsg = t('speakerPortal.upload.fileTooLarge');
setError(errorMsg);
onError({ type: 'FILE_TOO_LARGE', message: errorMsg });
return false;
}
return true;
},
[onError, t]
);
/**
* Handle file upload
*/
const handleUpload = useCallback(
async (file: File) => {
// Reset state
setError(null);
setUploadProgress(0);
// Validate file
if (!validateFile(file)) {
return;
}
// Set file name and start upload
setSelectedFileName(file.name);
setIsUploading(true);
try {
// Upload using service (3-phase presigned URL flow)
const response = await speakerPortalService.uploadMaterial(eventCode, file, (progress) =>
setUploadProgress(progress)
);
// Notify success
setIsUploading(false);
setUploadProgress(0);
setSelectedFileName(null);
setShowDropzone(false);
onMaterialUploaded(response.cloudFrontUrl, response.fileName);
} catch (err) {
// Handle error
setIsUploading(false);
setUploadProgress(0);
setSelectedFileName(null);
const errorMsg = err instanceof Error ? err.message : 'Upload failed';
setError(errorMsg);
onError({ type: 'UPLOAD_FAILED', message: errorMsg });
}
},
[eventCode, validateFile, onMaterialUploaded, onError]
);
/**
* Handle file input change
*/
const handleFileChange = useCallback(
(event: React.ChangeEvent<HTMLInputElement>) => {
const file = event.target.files?.[0];
Eif (file) {
handleUpload(file);
}
// Reset input to allow selecting same file again
event.target.value = '';
},
[handleUpload]
);
/**
* Handle drag events
*/
const handleDragEnter = useCallback((e: React.DragEvent) => {
e.preventDefault();
e.stopPropagation();
setIsDragging(true);
}, []);
const handleDragLeave = useCallback((e: React.DragEvent) => {
e.preventDefault();
e.stopPropagation();
// Only set to false if we're leaving the dropzone entirely
if (e.currentTarget === e.target) {
setIsDragging(false);
}
}, []);
const handleDragOver = useCallback((e: React.DragEvent) => {
e.preventDefault();
e.stopPropagation();
}, []);
const handleDrop = useCallback(
(e: React.DragEvent) => {
e.preventDefault();
e.stopPropagation();
setIsDragging(false);
const file = e.dataTransfer.files?.[0];
if (file) {
handleUpload(file);
}
},
[handleUpload]
);
/**
* Handle click on dropzone
*/
const handleDropzoneClick = useCallback(() => {
Eif (!isUploading) {
fileInputRef.current?.click();
}
}, [isUploading]);
/**
* Handle keyboard activation of dropzone
*/
const handleDropzoneKeyDown = useCallback(
(e: React.KeyboardEvent) => {
if (e.key === 'Enter' || e.key === ' ') {
e.preventDefault();
handleDropzoneClick();
}
},
[handleDropzoneClick]
);
/**
* Handle "Change" button click
*/
const handleChangeFile = useCallback(() => {
setShowDropzone(true);
setError(null);
}, []);
/**
* Handle "Cancel" button click
*/
const handleCancel = useCallback(() => {
setShowDropzone(false);
setError(null);
setSelectedFileName(null);
}, []);
// Render material display (when material exists and not changing)
if (!showDropzone && currentMaterialUrl && currentMaterialName) {
return (
<div className="flex flex-col gap-4 p-4 bg-gray-700 rounded-lg">
<div className="flex items-center gap-3">
<FileText className="h-8 w-8 text-blue-400 flex-shrink-0" />
<div className="flex-1 min-w-0">
<a
href={currentMaterialUrl}
target="_blank"
rel="noopener noreferrer"
className="text-blue-400 hover:text-blue-300 transition-colors truncate block"
>
{currentMaterialName}
<ExternalLink className="h-3 w-3 inline-block ml-1" />
</a>
<p className="text-sm text-gray-500">{t('speakerPortal.upload.presentationFile')}</p>
</div>
</div>
<button
type="button"
onClick={handleChangeFile}
className="text-sm text-blue-400 hover:text-blue-300 transition-colors self-start"
>
{t('speakerPortal.upload.changeFile')}
</button>
</div>
);
}
// Render dropzone
return (
<div className="flex flex-col gap-4">
{/* Dropzone (AC7.1, AC7.2) */}
<div
ref={dropzoneRef}
data-testid="material-dropzone"
role="button"
tabIndex={0}
aria-disabled={isUploading}
onClick={handleDropzoneClick}
onKeyDown={handleDropzoneKeyDown}
onDragEnter={handleDragEnter}
onDragLeave={handleDragLeave}
onDragOver={handleDragOver}
onDrop={handleDrop}
className={`
p-8 flex flex-col items-center justify-center
border-2 border-dashed rounded-lg transition-all cursor-pointer
${isDragging ? 'border-blue-500 bg-blue-900/20' : 'border-gray-600 hover:border-gray-500'}
${isUploading ? 'opacity-50 cursor-not-allowed' : ''}
`}
>
{/* Hidden file input inside dropzone for test accessibility */}
<input
ref={fileInputRef}
type="file"
accept={[...ALLOWED_TYPES, ...ALLOWED_EXTENSIONS.map((ext) => `.${ext}`)].join(',')}
onChange={handleFileChange}
className="hidden"
aria-label={t('speakerPortal.upload.uploadAria')}
/>
{isUploading ? (
<>
<BATbernLoader size={96} />
<p className="text-white font-medium">{selectedFileName}</p>
</>
) : (
<>
<Upload className="h-12 w-12 text-gray-400 mb-4" />
<p className="text-white font-medium mb-1">
{t('speakerPortal.upload.dragDropPresentation')}
</p>
<p className="text-gray-400 text-sm">{t('speakerPortal.upload.orClickBrowse')}</p>
</>
)}
</div>
{/* Upload progress (AC7.6) */}
{isUploading && (
<div role="status" aria-live="polite">
<div className="flex justify-between text-sm text-gray-400 mb-1">
<span>{t('speakerPortal.upload.uploading')}</span>
<span>{uploadProgress}%</span>
</div>
<div className="h-2 bg-gray-700 rounded-full overflow-hidden">
<div
role="progressbar"
aria-valuenow={uploadProgress}
aria-valuemin={0}
aria-valuemax={100}
className="h-full bg-blue-500 transition-all duration-300"
style={{ width: `${uploadProgress}%` }}
/>
</div>
</div>
)}
{/* Instructions */}
{!isUploading && (
<p className="text-xs text-gray-500 text-center">
{t('speakerPortal.upload.acceptedFormats')}
</p>
)}
{/* Error message */}
{error && (
<div
role="alert"
className="flex items-center gap-2 text-sm text-red-400 bg-red-900/20 px-3 py-2 rounded-lg"
>
<AlertCircle className="h-4 w-4 flex-shrink-0" />
<span>{error}</span>
</div>
)}
{/* Cancel button (when changing existing material) */}
{currentMaterialUrl && !isUploading && (
<button
type="button"
onClick={handleCancel}
className="flex items-center gap-1 text-sm text-gray-400 hover:text-gray-300 transition-colors self-center"
aria-label={t('speakerPortal.photo.cancel')}
>
<X className="h-4 w-4" />
{t('speakerPortal.photo.cancel')}
</button>
)}
</div>
);
};
export default PresentationUpload;
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