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d2b38ef4b8
# Description of Changes Move frontend code into `core` folder and add infrastructure for `proprietary` folder to include premium, non-OSS features
54 lines
1.5 KiB
TypeScript
54 lines
1.5 KiB
TypeScript
// Pure utility functions for file operations
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/**
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* Consolidated file size formatting utility
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*/
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export function formatFileSize(bytes: number): string {
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if (bytes === 0) return '0 B';
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const k = 1024;
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const sizes = ['B', 'KB', 'MB', 'GB'];
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const i = Math.floor(Math.log(bytes) / Math.log(k));
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return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
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}
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/**
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* Get file date as string
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*/
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export function getFileDate(file: File | { lastModified: number }): string {
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if (file.lastModified) {
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return new Date(file.lastModified).toLocaleString();
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}
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return "Unknown";
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}
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/**
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* Get file size as string (legacy method for backward compatibility)
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*/
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export function getFileSize(file: File | { size: number }): string {
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if (!file.size) return "Unknown";
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return formatFileSize(file.size);
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}
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/**
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* Detects and normalizes file extension from filename
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* @param filename - The filename to extract extension from
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* @returns Normalized file extension in lowercase, empty string if no extension
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*/
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export function detectFileExtension(filename: string): string {
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if (!filename || typeof filename !== 'string') return '';
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const parts = filename.split('.');
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// If there's no extension (no dots or only one part), return empty string
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if (parts.length <= 1) return '';
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// Get the last part (extension) in lowercase
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let extension = parts[parts.length - 1].toLowerCase();
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// Normalize common extension variants
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if (extension === 'jpeg') extension = 'jpg';
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return extension;
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}
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