Loading Bar Configuration Manager

Build a TypeScript utility module that manages loading bar configurations with proper type safety.

Requirements

Create a module with three type-safe utilities for managing top-loading bar settings and controls:

Configuration Validator

Implement validateLoadingBarConfig that:

• Accepts a configuration object with loading bar properties
• Returns true if the configuration is valid, false otherwise
• Validates numeric ranges: height (1-20), loaderSpeed (100-5000), transitionTime (100-3000)
• Validates that color is a string when provided
• Uses proper TypeScript types from the loading bar library

Settings Merger

Implement mergeLoadingBarSettings that:

• Accepts optional user-provided configuration settings
• Returns a complete configuration by merging with defaults: { color: '#2196f3', height: 3, shadow: true, loaderSpeed: 500 }
• User settings override defaults when provided
• Returns a properly typed configuration object

Progress Tracker

Implement LoadingBarTracker class that:

• Accepts a loading bar reference in its constructor
• Provides startLoading() method that calls the reference's continuousStart() method
• Provides finishLoading() method that calls the reference's complete() method
• Provides updateProgress(value: number) method that calls the reference's staticStart() with the value
• Uses correct TypeScript types for the loading bar reference

Dependencies { .dependencies }

react-top-loading-bar { .dependency }

Provides the top-loading bar component and TypeScript type definitions.

Test Cases

• Validator returns true for valid configurations with all required numeric properties within range @test
• Validator returns false when height is outside acceptable range (e.g., height: 25) @test
• Settings merger correctly combines default and user settings, with user settings taking precedence @test
• LoadingBarTracker properly stores and uses the loading bar reference with type-safe method calls @test

@generates

API

// Configuration validator
export function validateLoadingBarConfig(config: any): boolean;

// Settings merger
export function mergeLoadingBarSettings(userSettings?: any): any;

// Progress tracker class
export class LoadingBarTracker {
  constructor(ref: any);
  startLoading(): void;
  finishLoading(): void;
  updateProgress(value: number): void;
}