File size: 1,673 Bytes
057576a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | export const ALLOWED_FILE_TYPES = {
image: ['image/jpeg', 'image/jpg', 'image/png', 'image/gif', 'image/webp'],
audio: ['audio/mpeg', 'audio/wav', 'audio/ogg', 'audio/mp4', 'audio/x-m4a'],
document: ['application/pdf', 'text/plain', 'text/markdown']
};
export const MAX_FILE_SIZES = {
image: 10 * 1024 * 1024, // 10MB
audio: 25 * 1024 * 1024, // 25MB
document: 50 * 1024 * 1024 // 50MB
};
export const validateFile = (file) => {
// Check file type
let fileCategory = null;
for (const [category, types] of Object.entries(ALLOWED_FILE_TYPES)) {
if (types.includes(file.type)) {
fileCategory = category;
break;
}
}
if (!fileCategory) {
throw new Error(`File type ${file.type} is not supported. Supported types: images, audio, PDF, and text files.`);
}
// Check file size
if (file.size > MAX_FILE_SIZES[fileCategory]) {
const maxSizeMB = MAX_FILE_SIZES[fileCategory] / 1024 / 1024;
throw new Error(`File too large. Maximum size for ${fileCategory} files is ${maxSizeMB}MB.`);
}
return fileCategory;
};
export const getFileIcon = (mimeType) => {
if (mimeType.startsWith('image/')) return 'image';
if (mimeType.startsWith('audio/')) return 'audio';
if (mimeType === 'application/pdf') return 'pdf';
if (mimeType.startsWith('text/')) return 'text';
return 'file';
};
export const formatFileSize = (bytes) => {
if (bytes === 0) return '0 Bytes';
const k = 1024;
const sizes = ['Bytes', 'KB', 'MB', 'GB'];
const i = Math.floor(Math.log(bytes) / Math.log(k));
return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
}; |