src/main/webapp/app/overview/exercise-details/course-exercise-details.module.ts (1)

Line range hint 1-78: Overall module structure review.

The module structure adheres to Angular style guidelines. However, there are a few suggestions for improvement:

1. Consider grouping related imports together (e.g., Angular core imports, shared modules, feature modules).
2. The imports array in the @NgModule decorator is quite long. Consider breaking it into logical groups with comments for better readability.
3. Use consistent naming conventions for modules. Some modules use the "Artemis" prefix while others don't. Consider standardizing this across the project.

Example of grouped imports:

// Angular core imports
import { NgModule } from '@angular/core';
import { RouterModule, Routes } from '@angular/router';

// Shared modules
import { ArtemisSharedModule } from 'app/shared/shared.module';
import { ArtemisSidePanelModule } from 'app/shared/side-panel/side-panel.module';
// ... other shared modules ...

// Feature modules
import { ArtemisProgrammingExerciseInstructionsRenderModule } from 'app/exercises/programming/shared/instructions-render/programming-exercise-instructions-render.module';
// ... other feature modules ...

// Components
import { CourseExerciseDetailsComponent } from 'app/overview/exercise-details/course-exercise-details.component';
// ... other component imports ...

src/main/webapp/app/overview/course-lectures/course-lecture-details.component.ts (3)

Line range hint 30-138: Consider implementing lazy loading for LectureUnit components.

To improve performance, especially for courses with many lecture units, consider implementing lazy loading for the LectureUnit components.

You can use Angular's built-in lazy loading feature to load LectureUnit components on demand. This can be achieved by creating a separate module for each LectureUnit type and using the loadChildren property in the routing configuration.

---

Line range hint 67-138: Enhance error handling and user feedback.

The current error handling in the loadData method could be improved to provide more specific feedback to the user.

Consider implementing a custom error handling service that can provide more detailed error messages based on the type of error encountered. For example:

private handleError(error: HttpErrorResponse): void {
    let errorMessage = 'An error occurred while loading the lecture data.';
    if (error.status === 404) {
        errorMessage = 'The requested lecture could not be found.';
    } else if (error.status === 403) {
        errorMessage = 'You do not have permission to access this lecture.';
    }
    this.alertService.error(errorMessage);
}

Then, update the error handling in the loadData method:

error: (errorResponse: HttpErrorResponse) => this.handleError(errorResponse),

Tools

Biome

[error] 105-105: Forbidden non-null assertion.

Unsafe fix: Replace with optional chain operator ?. This operator includes runtime checks, so it is safer than the compile-only non-null assertion operator

(lint/style/noNonNullAssertion)

---

Line range hint 1-138: Consider implementing caching for lecture data.

To improve performance and reduce server load, consider implementing a caching mechanism for lecture data.

You can use Angular's HttpInterceptor to implement a caching strategy for GET requests to the lecture endpoint. This would allow you to serve cached data when available and only fetch from the server when necessary.

Here's a basic example of how you might implement this:

import { Injectable } from '@angular/core';
import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpResponse } from '@angular/common/http';
import { Observable, of } from 'rxjs';
import { tap } from 'rxjs/operators';

@Injectable()
export class CachingInterceptor implements HttpInterceptor {
    private cache = new Map<string, HttpResponse<any>>();

    intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
        if (req.method !== 'GET') {
            return next.handle(req);
        }

        const cachedResponse = this.cache.get(req.url);
        if (cachedResponse) {
            return of(cachedResponse.clone());
        }

        return next.handle(req).pipe(
            tap(event => {
                if (event instanceof HttpResponse) {
                    this.cache.set(req.url, event.clone());
                }
            })
        );
    }
}

Remember to clear the cache when appropriate, such as when a user logs out or when lecture data is updated.