test(notifications): prototype user-targeted push notifications

[francescopausellii]

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[gemini-code-assist]

Summary of Changes

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This pull request introduces a comprehensive system for user-targeted push notifications. It establishes the necessary database structures and API endpoints to manage user push subscriptions and deliver notifications directly to authenticated users. The frontend has been updated to allow users to subscribe/unsubscribe and for authenticated users to send notifications to other subscribed users. Additionally, new authentication UI components are integrated into the homepage, and foundational fields for user moderation features have been added to the database schema.

Highlights

• User-Targeted Push Notifications: Implemented the capability to send push notifications directly to specific authenticated users, enhancing personalized communication.
• Database Schema Expansion: Introduced new database models for PushSubscription and Notification to store user subscription details and a history of sent notifications. Also added administrative fields to User and Session models.
• New API Endpoints: Created dedicated API routes for managing user push subscriptions (saving and removing) and for retrieving a list of users who have active subscriptions.
• Enhanced Notification Sending Logic: Modified the notification API to support sending messages based on either a direct browser subscription or a target user ID.
• Authentication UI Integration: Integrated new client-side authentication components (AuthForm, UserStatus) into the main application page for a more complete user experience.

Changelog

• .gitignore
  • Added certificates directory to the ignore list.
• prisma/migrations/20260217132538_add_push_subscription_notification_and_admin_fields/migration.sql
  • Created new database tables for push_subscription and notification.
  • Added impersonatedBy column to the session table.
  • Added banExpires, banReason, and banned columns to the user table.
• prisma/schema.prisma
  • Defined new PushSubscription and Notification models.
  • Updated User and Session models with new fields and relationships to support notifications and administrative features.
• src/app/api/notifications/route.ts
  • Modified the POST endpoint to conditionally send notifications to a specific user ID or a direct subscription.
• src/app/api/notifications/subscriptions/route.ts
  • Added new API routes for POST (saving) and DELETE (removing) user push subscriptions.
• src/app/api/notifications/users/route.ts
  • Added a new API route to fetch a list of users who have active push subscriptions.
• src/app/page.tsx
  • Updated the main page to include authentication forms and user status display.
  • Integrated the enhanced notification form to allow user-targeted sending.
• src/features/auth/components/auth-form.tsx
  • Added a new React component for user login and registration.
• src/features/auth/components/user-status.tsx
  • Added a new React component to display the current user's status and a logout button.
• src/features/auth/index.ts
  • Exported the new AuthForm and UserStatus components.
• src/features/auth/lib/auth.ts
  • Configured the authentication library to require a username for user creation.
• src/features/push-notifications/components/notification-subscription-form.tsx
  • Updated the form to allow selecting a target user for notifications.
  • Implemented fetching and displaying a list of users with active subscriptions.
• src/features/push-notifications/hook/use-notification.tsx
  • Extended the notification hook to include an handleUnsubscribe function.
  • Integrated backend calls for saving and removing subscriptions when subscribing/unsubscribing.
• src/features/push-notifications/service/notification.client.service.ts
  • Implemented client-side functions saveSubscription and removeSubscription to interact with the new subscription API.
• src/features/push-notifications/service/notification.server.service.ts
  • Added a sendToUser function to send notifications to all active subscriptions of a given user.
  • Implemented persistence of sent notifications in the database.

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[gemini-code-assist]

Code Review

This pull request introduces user-targeted push notifications, including database schema changes, new API endpoints for managing subscriptions and sending notifications, and UI components for authentication and notification management. The changes are well-structured within the feature-based architecture. My review focuses on improving performance and React best practices according to the repository's style guide. I've identified a critical performance issue in the notification sending logic where notifications are sent sequentially instead of in parallel, and a medium-severity issue related to React hook dependencies that could cause unnecessary re-renders. Applying these suggestions will make the feature more robust and performant.