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Weekly report ​

Student:@student.ucll.be
Study: Professional BachelorMajor: ICT
Company: YappaCity: Hasselt

Activities Week 10 (27/04/2026 - 01/05/2026) ​

Monday (Day 46) ​

Today, I finalized the TypeScript Pull Request for the Slack UI and submitted it for review. This completion marks a significant milestone: the end-to-end Proof of Concept (POC) flow—encompassing category creation, knowledge item assignment, and AI-driven digest generation—is now fully functional. Additionally, I spent time deploying these changes to the production server to streamline the upcoming migration process and ensure environment parity between staging and production.

Tuesday (Day 47) ​

Today, I focused on preparing two distinct sets of Pull Requests across the Symfony backend. The first PR (symfony/subs) introduces a full category subscription system: a Subscription entity with its own persistence and query services, a SubscriptionController with RESTful endpoints, and a SubscriptionMapper for DTO transformations. Subscriptions are automatically synchronized with Notion via a dedicated SyncSubscriptionsToNotionCommand and NotionSubscriptionRepository, providing a clear overview of subscriber distributions across categories. The second PR (feat/distribution) builds upon this subscription infrastructure to introduce automated digest delivery. While previously only the user initiating the generation received the report, the new DigestDistributionService resolves all subscribers for a given category and distributes the digest to each member via Slack Direct Messages using a SlackMessageTransport implementing a MessageTransportInterface. The distribution system tracks delivery status per recipient through a DigestDelivery entity with dedicated persistence and query services.

Wednesday (Day 48) ​

Today, I completed the distribution-focused Pull Requests across both the Symfony backend (feat/distribution) and TypeScript Slack integration repositories. The Symfony PR introduces 45 new and modified files (+2031 LOC), including a SlackBlockFormatter for rich Block Kit formatting of digest content, a DigestDeliveryLogService for tracking delivery outcomes, and a DeliverableInterface that abstracts the delivery contract. In parallel, I addressed several code review comments from Davy on the previous POC PRs, including removing the deprecated MapperFactory and MapperRegistry in favor of the Symfony Serializer, and resolving minor structural comments to prepare the PRs for final approval.

Thursday (Day 49) ​

Today I started working on the DigestScheduler feature, which allows users to configure a recurring schedule on a category to trigger periodic generation and distribution of digests based on the knowledge items within that category. The scheduler will run as a Symfony console command invoked by a cron job once per hour, querying for categories whose configured digest schedule has elapsed. For each matching category, the scheduler will generate a digest and distribute it to all subscribed users via Slack DM. In addition, I began refactoring the repository layer by introducing a BaseRepositoryInterface with standardized query methods (findById, findByNotionId, findAll, save, flush), reducing duplication across the ten existing repository classes. I also extracted logging context builders (DomainContextDtoBuilder, OperationContextDtoBuilder) to replace inline array construction with fluent, typed DTOs.

Friday (Day 50) ​

Today is the first of May, which is a national holiday. I took the day off along with the rest of the Yappaneze.

New skills ​

  • Implementing automated Slack DM distribution using a transport abstraction (MessageTransportInterface + SlackMessageTransport).
  • Synchronizing relational subscription data between Slack events and Notion databases via a dedicated sync command.
  • Designing a delivery tracking system with per-recipient status (DigestDelivery entity, DigestDeliveryLogService).
  • Refactoring repository duplication through a generic BaseRepositoryInterface with standardized query methods.
  • Managing production deployments and ensuring environment parity for POC migrations.

Useful data ​

  • feat/distribution branch: 45 files changed, +2031 LOC (Slack Block Kit formatting, delivery tracking, transport abstraction)
  • symfony/subs branch: 23 files changed, +1254 LOC (Subscription entity, controller, Notion sync command, mapper)
  • feat/digest-ai-output branch: 4 files changed, +98 LOC (DigestItemGenerator for AI digest pipeline)
  • Repository refactoring: BaseRepositoryInterface consolidating 10+ repository classes

Remarks ​

Completing the full end-to-end POC flow this week was highly rewarding. Moving from core functionality to more advanced features like user subscriptions and automated distribution demonstrates the scalability of the layered architecture established in previous weeks. The introduction of the MessageTransportInterface is particularly noteworthy—it abstracts the delivery channel so that future distribution to email or Notion team pages requires only a new transport implementation, with no changes to the DigestDistributionService. Balancing feature development with structural improvements like the repository refactoring provided an excellent exercise in managing technical debt alongside new functionality.