📊 Dashboard Module - TypeScript Functions

/**
 * Component initialization with analytics setup and data loading
 * Initializes dashboard widgets and chart configurations
 * Loads analytics data and business metrics
 * Sets up real-time data subscriptions
 * Configures user selection and filtering options
 * @returns {void}
 */
ngOnInit(): void

/**
 * Component cleanup and subscription management
 * Unsubscribes from data streams and observables
 * Cleans up chart instances and event listeners
 * @returns {void}
 */
ngOnDestroy(): void

/**
 * Retrieves and processes business performance metrics
 * Fetches KPIs and business intelligence data
 * Calculates performance indicators and trends
 * Updates dashboard charts and visualizations
 * @returns {void}
 */
getBusinessMetrics(): void

/**
 * Loads comprehensive analytics data for dashboard visualization
 * Retrieves user activity, system performance, and business data
 * Processes data for chart rendering and metric display
 * Handles data aggregation and filtering
 * @returns {void}
 */
loadAnalyticsData(): void

/**
 * Sets up system timezone for the current session
 * Checks if client timezone is already stored
 * Calls authentication service to store timezone info
 * Ensures consistent time handling across the application
 * @private
 * @returns {void}
 */
private SetSystemTZ(): void

/**
 * Truncates notification text to specified length for UI display
 * Adds ellipsis when text exceeds maximum length
 * Used for displaying user names and notifications in dropdowns
 * Maintains text readability while preserving layout
 * @param {string} subject - Text to truncate
 * @param {number} maxLength - Maximum allowed length
 * @returns {string} Truncated text with ellipsis if needed
 */
truncatenotification(subject: string, maxLength: number): string

/**
 * Initializes UI color customization and theme management
 * Sets up event listeners for theme color changes
 * Handles body background color customization
 * Manages logo header color changes and sidebar theming
 * Configures topbar color options and layout colors
 * Updates CSS variables based on user selections
 * @private
 * @returns {void}
 */
private initializeThemeCustomization(): void

/**
 * Alternative dashboard initialization with theme and layout setup
 * Sets up theme subscription for left menu toggle
 * Initializes UI components and chart libraries
 * Configures layout and color management systems
 * Sets up scroll handlers and interactive elements
 * @returns {void}
 */
ngOnInit(): void

/**
 * Alternative dashboard cleanup and resource disposal
 * Handles subscription cleanup and resource disposal
 * Cleans up theme subscriptions and event listeners
 * @returns {void}
 */
ngOnDestroy(): void

/**
 * Initializes layout color management system
 * Handles sidebar and body background color detection
 * Updates CSS classes based on color selections
 * Manages dynamic theme switching and color coordination
 * @private
 * @returns {void}
 */
private layoutsColors(): void

/**
 * Handles file upload preview functionality
 * Processes image file selection for avatars and uploads
 * Updates preview image display with selected file
 * Validates file types and size restrictions
 * @private
 * @param {any} fileInput - File input element
 * @returns {void}
 */
private readURL(fileInput: any): void

/**
 * Toggles password visibility in form inputs
 * Switches between text and password input types
 * Provides password reveal/hide functionality
 * Updates toggle button state and icon
 * @private
 * @param {any} element - Password toggle button element
 * @returns {void}
 */
private showPassword(element: any): void

/**
 * Initializes information widget with statistics loading
 * Loads overall system statistics and metrics
 * Sets up circular progress chart configurations
 * Initializes data refresh intervals and subscriptions
 * @returns {void}
 */
ngOnInit(): void

/**
 * Loads comprehensive system statistics and metrics
 * Retrieves user counts, activity metrics, and system health
 * Processes data for circular progress chart display
 * Updates widget with real-time statistical information
 * @returns {void}
 */
loadSystemStatistics(): void

/**
 * Updates circular progress charts with latest data
 * Animates chart transitions and progress indicators
 * Handles chart rendering and visual updates
 * Manages chart responsiveness and interaction
 * @returns {void}
 */
updateProgressCharts(): void