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@taiphanvan2k3 taiphanvan2k3 commented Nov 3, 2025

Summary by CodeRabbit

Release Notes

  • New Features

    • Automated welcome emails now sent to newly registered users
    • Enhanced event-driven architecture for improved application workflows
  • Infrastructure Updates

    • Upgraded logging framework for better application observability
    • Improved error tracking and system diagnostics

@taiphanvan2k3 taiphanvan2k3 self-assigned this Nov 3, 2025
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coderabbitai bot commented Nov 3, 2025

Walkthrough

This PR implements domain event dispatching infrastructure by refactoring aggregate root handling, introducing new interfaces (IHasDomainEvents, IUnitOfWork, IEmailService), updating DomainEventBehavior with actual dispatch logic, replacing placeholder event handlers with focused implementations, adding email service functionality, and integrating Serilog logging throughout the application.

Changes

Cohort / File(s) Summary
Documentation Cleanup
docs/CI_CD_EXPLAINED.md, docs/NAMING_CONVENTIONS.md, file_tree.md
Removed CI/CD and naming conventions documentation files; updated project file tree structure to reflect src-based layout
Domain Layer — Interfaces & Base Classes
src/Domain/Common/IHasDomainEvents.cs, src/Domain/Common/BaseAggregateRoot.cs, src/Domain/Common/BaseEntity.cs, src/Domain/Entities/User.cs
Added IHasDomainEvents interface for domain event management; BaseAggregateRoot now implements IHasDomainEvents with public AddDomainEvent/RemoveDomainEvent methods; User entity changed to inherit from BaseAggregateRoot
Application Layer — Event Handling Infrastructure
src/Application/Common/IDomainEventDispatcher.cs, src/Application/Common/IUnitOfWork.cs, src/Application/Common/Behaviors/DomainEventBehavior.cs
IDomainEventDispatcher parameter updated to accept IHasDomainEvents; new IUnitOfWork interface with GetEntitiesWithDomainEvents() and SaveChangesAsync(); DomainEventBehavior refactored with actual event collection and dispatch logic
Application Layer — Event Handlers
src/Application/EventHandlers/UserCreatedEventHandler.cs, src/Application/EventHandlers/UserDeactivatedEventHandler.cs, src/Application/EventHandlers/UserUpdatedEventHandler.cs, src/Application/EventHandlers/UserCreatedSendEmailEventHandler.cs
Removed generic/placeholder event handlers; added UserCreatedSendEmailEventHandler with email integration
Application Layer — Services & Features
src/Application/Interfaces/IEmailService.cs, src/Application/Features/Auth/Register/RegisterCommandHandler.cs
New IEmailService interface for email operations; RegisterCommandHandler updated to raise UserCreatedEvent
Infrastructure Layer — Event & Data Management
src/Infrastructure/Services/DomainEventDispatcher.cs, src/Infrastructure/Data/Contexts/DataContext.cs, src/Infrastructure/Data/Seeders/DatabaseSeeder.cs
DomainEventDispatcher parameter updated to IHasDomainEvents; DataContext now implements IUnitOfWork with GetEntitiesWithDomainEvents(); DatabaseSeeder refactored with logging support
Infrastructure Layer — Email & Configuration
src/Infrastructure/Configuration/EmailSettings.cs, src/Infrastructure/Services/EmailService.cs, src/Infrastructure/Extensions/ServiceCollectionExtensions.cs
EmailSettings refactored (SectionName: "EmailSettings" → "Email"; added Enabled, SmtpHost, SmtpUsername, SmtpPassword properties); new EmailService implementation; IUnitOfWork and IEmailService registered in DI
Web API Layer — Logging & Configuration
src/Web.Api/Extensions/SerilogExtensions.cs, src/Web.Api/Program.cs, src/Web.Api/Web.Api.csproj, src/Web.Api/appsettings.json, src/Web.Api/appsettings.Development.json
New SerilogExtensions for centralized logging configuration; Program.cs restructured with startup try/catch, Serilog initialization, and seed logging; Serilog packages upgraded; Email configuration section added to appsettings

Sequence Diagram

sequenceDiagram
    participant Client
    participant Handler as RegisterCommandHandler
    participant UoW as IUnitOfWork
    participant Behavior as DomainEventBehavior
    participant Dispatcher as IDomainEventDispatcher
    participant EventHandler as UserCreatedSendEmailEventHandler
    participant EmailService as IEmailService

    Client->>Handler: Execute RegisterCommand
    Handler->>Handler: Create User domain entity
    Handler->>Handler: AddDomainEvent(UserCreatedEvent)
    Handler->>UoW: SaveChangesAsync()
    
    rect rgb(200, 230, 255)
    Note over Behavior: Domain Event Dispatch Phase
    Behavior->>UoW: GetEntitiesWithDomainEvents()
    UoW-->>Behavior: [User with UserCreatedEvent]
    Behavior->>Behavior: Collect all domain events
    Behavior->>Behavior: Clear domain events on entities
    end
    
    Behavior->>Dispatcher: DispatchEventAsync(UserCreatedEvent)
    Dispatcher->>EventHandler: Handle(UserCreatedEvent)
    EventHandler->>EmailService: SendWelcomeEmailAsync()
    EmailService-->>EventHandler: Task completed
    EventHandler-->>Dispatcher: Task completed
    Dispatcher-->>Behavior: Task completed
    Behavior-->>Client: Command response
Loading

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~45 minutes

  • DomainEventBehavior.cs: Core event dispatch logic implementation with multiple dependencies and control flow changes; requires understanding of event collection, clearing, and dispatch sequencing.
  • Domain layer structural changes: BaseAggregateRoot visibility changes and inheritance hierarchy updates (User → BaseAggregateRoot) affect the domain model; changes propagate through dependent layers.
  • Interface changes to IDomainEventDispatcher and new IUnitOfWork: Public API contract changes require verification that all implementations and call sites are updated correctly.
  • Multi-layer integration: Changes span Domain, Application, Infrastructure, and Web.Api layers with coordinated updates to DI registration, configuration, and startup logic.
  • Email service integration: New email sending functionality requires validation of credential handling, exception handling (error swallowing), and SMTP configuration.

📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Free

📥 Commits

Reviewing files that changed from the base of the PR and between d125d83 and fc20c67.

📒 Files selected for processing (27)
  • docs/CI_CD_EXPLAINED.md (0 hunks)
  • docs/NAMING_CONVENTIONS.md (0 hunks)
  • file_tree.md (2 hunks)
  • src/Application/Common/Behaviors/DomainEventBehavior.cs (2 hunks)
  • src/Application/Common/IDomainEventDispatcher.cs (1 hunks)
  • src/Application/Common/IUnitOfWork.cs (1 hunks)
  • src/Application/EventHandlers/UserCreatedEventHandler.cs (0 hunks)
  • src/Application/EventHandlers/UserCreatedSendEmailEventHandler.cs (1 hunks)
  • src/Application/EventHandlers/UserDeactivatedEventHandler.cs (0 hunks)
  • src/Application/EventHandlers/UserUpdatedEventHandler.cs (0 hunks)
  • src/Application/Features/Auth/Register/RegisterCommandHandler.cs (2 hunks)
  • src/Application/Interfaces/IEmailService.cs (1 hunks)
  • src/Domain/Common/BaseAggregateRoot.cs (3 hunks)
  • src/Domain/Common/BaseEntity.cs (1 hunks)
  • src/Domain/Common/IHasDomainEvents.cs (1 hunks)
  • src/Domain/Entities/User.cs (1 hunks)
  • src/Infrastructure/Configuration/EmailSettings.cs (1 hunks)
  • src/Infrastructure/Data/Contexts/DataContext.cs (3 hunks)
  • src/Infrastructure/Data/Seeders/DatabaseSeeder.cs (2 hunks)
  • src/Infrastructure/Extensions/ServiceCollectionExtensions.cs (3 hunks)
  • src/Infrastructure/Services/DomainEventDispatcher.cs (1 hunks)
  • src/Infrastructure/Services/EmailService.cs (1 hunks)
  • src/Web.Api/Extensions/SerilogExtensions.cs (1 hunks)
  • src/Web.Api/Program.cs (2 hunks)
  • src/Web.Api/Web.Api.csproj (1 hunks)
  • src/Web.Api/appsettings.Development.json (1 hunks)
  • src/Web.Api/appsettings.json (1 hunks)
💤 Files with no reviewable changes (5)
  • docs/NAMING_CONVENTIONS.md
  • src/Application/EventHandlers/UserCreatedEventHandler.cs
  • docs/CI_CD_EXPLAINED.md
  • src/Application/EventHandlers/UserDeactivatedEventHandler.cs
  • src/Application/EventHandlers/UserUpdatedEventHandler.cs

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@taiphanvan2k3 taiphanvan2k3 merged commit 25e5b68 into main Nov 3, 2025
2 checks passed
@taiphanvan2k3 taiphanvan2k3 deleted the feat/implement-auth-apis branch November 3, 2025 14:16
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2 participants