Implementing Dynamic Remotes in Angular

Dynamic remotes allow you to load Angular applications as modules at runtime, enabling microfrontend architectures and modular application development. This challenge focuses on building a basic Angular application that dynamically loads and displays a remote module. Successfully completing this challenge will demonstrate your understanding of Angular's dynamic import functionality and module federation.

Problem Description

You are tasked with creating an Angular application (the "host" application) that dynamically loads and displays a simple remote Angular application (the "remote" application). The remote application will simply display a message: "Hello from the Remote!". The host application should fetch the remote module and display this message within its own template.

What needs to be achieved:

Create a basic Angular host application.
Implement dynamic loading of a remote module using loadRemoteModule.
Display the content from the remote module within the host application's template.

Key Requirements:

The remote module should be loaded asynchronously.
The host application should handle the loading process gracefully, displaying a loading indicator while the remote module is being fetched.
The remote module should be treated as a black box; you don't need to define its internal components or services within the host application.
Error handling: The host application should display an error message if the remote module fails to load.

Expected Behavior:

Upon application startup, the host application should:

Display a loading indicator.
Dynamically load the remote module.
Once the remote module is loaded, replace the loading indicator with the message "Hello from the Remote!".
If the remote module fails to load, display an error message like "Failed to load remote module."

Edge Cases to Consider:

Network errors during remote module loading.
Invalid remote module URL.
Remote module not being available.

Examples

Example 1:

Input: Host application starts, remote module URL is valid and accessible.
Output: Host application initially displays a loading indicator. After a short delay (simulating remote loading), the message "Hello from the Remote!" is displayed.
Explanation: The host application successfully loads and displays the remote module's content.

Example 2:

Input: Host application starts, remote module URL is invalid or inaccessible.
Output: Host application initially displays a loading indicator. After a timeout (simulating a failed remote load), an error message "Failed to load remote module." is displayed.
Explanation: The host application detects the failure to load the remote module and displays an appropriate error message.

Constraints

Remote Module URL: Assume the remote module URL is https://example.com/remoteEntry.js. (Note: This URL is for demonstration purposes only and will likely not resolve to a valid remote entry point. You can mock this behavior locally.)
Module Name: The remote module exposes a module named RemoteModule.
Loading Time: Simulate a loading time of approximately 1-2 seconds for the remote module.
Error Handling: Implement basic error handling to catch and display errors during remote module loading.
Angular Version: Use Angular 16 or later.

Notes

You'll need to use Angular's dynamicImport() function to load the remote module dynamically.
Consider using a loading indicator component to provide visual feedback to the user during the loading process.
You can mock the remote module's behavior locally for testing purposes. You don't need to set up a full-fledged remote application for this challenge. A simple JavaScript file served at the specified URL that exports a module with the required properties will suffice.
Focus on the dynamic loading and display aspects. You don't need to implement complex routing or communication between the host and remote applications.
The remote module is expected to export a JavaScript object with a property named RemoteModule. This RemoteModule should be an Angular module.