shared-utils.js

// SideLlama Shared Utilities - Consolidates exact duplicate functions
// This eliminates code duplication across service-worker.js, sidepanel.js, and settings.js

class SharedUtils {
    /**
     * Format bytes to human readable format
     * @param {number} bytes - Number of bytes
     * @returns {string} Formatted string (e.g., "1.5 MB")
     */
    static formatBytes(bytes) {
        if (bytes === 0) return '0 B';
        const k = 1024;
        const sizes = ['B', 'KB', 'MB', 'GB', 'TB'];
        const i = Math.floor(Math.log(bytes) / Math.log(k));
        return parseFloat((bytes / Math.pow(k, i)).toFixed(1)) + ' ' + sizes[i];
    }

    /**
     * Escape HTML to prevent XSS attacks
     * @param {string} text - Text to escape
     * @returns {string} HTML-escaped text
     */
    static escapeHtml(text) {
        const div = document.createElement('div');
        div.textContent = text;
        return div.innerHTML;
    }
}

// Export for both ES6 modules and CommonJS
if (typeof module !== 'undefined' && module.exports) {
    module.exports = SharedUtils;
}
if (typeof window !== 'undefined') {
    window.SharedUtils = SharedUtils;
}