refactor(infrastructure): Improve service implementations and remove legacy references
**Services Refactored:**
- DevExpressPdfProcessingService: Remove unnecessary try-catch (lines 80-87), add stream position validation
- WindreamDmsService: Mark as [Obsolete] - application now only provides email sending functionality
- MailKitEmailService: Keep MailKit implementation (Limilabs DLL to be added separately)
**Custom Exceptions Added:**
- AuthenticationFailedException: OAuth2/IMAP/SMTP authentication failures
- DmsNotAvailableException: windream COM unavailable
- InvalidPdfException: Invalid PDF stream
- NotFoundException: Entity not found in Repository operations
**Legacy Cleanup:**
- Remove legacy VB.NET projects from solution (EmailProfiler.Common, EmailProfiler.Service)
- Delete legacy/ folder reference
- Clean solution file structure
**Stream Validation:**
- All PDF processing methods now validate stream position (reset to 0 if needed)
- Add CanSeek validation for stream-based operations
**Build Status:** ✅ Successful (0 errors, 15 warnings - all acceptable)
This commit is contained in:
144
AGENTS.md
144
AGENTS.md
@@ -82,6 +82,22 @@ public class CreateEmailProfileCommandHandler : IRequestHandler<CreateEmailProfi
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- Commands: `{Verb}{Entity}Command.cs` (e.g., `CreateEmailProfileCommand.cs`)
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- Queries: `{Verb}{Entity}Query.cs` (e.g., `GetEmailProfilesQuery.cs`)
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**Folder Structure** (NO Features/ prefix):
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```
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Application/
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├── EmailProfiles/
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│ ├── Commands/CreateEmailProfileCommand.cs
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│ ├── Queries/GetEmailProfilesQuery.cs
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│ └── Validators/CreateEmailProfileCommandValidator.cs
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├── EmailAccounts/
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│ ├── Commands/CreateEmailAccountCommand.cs
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│ └── Queries/GetEmailAccountsQuery.cs
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└── Common/
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├── Dtos/EmailProfileDto.cs (single DTOs at root)
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├── Dtos/EmailHistories/ (multiple DTOs in subfolder)
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└── Interfaces/IEmailService.cs
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```
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### 6. Repository Pattern - NO UnitOfWork, Generic CRUD with AutoMapper
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**CRITICAL**: DO NOT use IUnitOfWork pattern. Use generic repository pattern with AutoMapper-based CRUD operations.
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@@ -383,16 +399,16 @@ return Accepted(); // HTTP 202 - command queued for processing
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## Pending Implementation Tasks
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### Phase 2: Application Layer (IN PROGRESS)
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**Status**: Partially complete - DTOs created, Commands/Queries needed
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### Phase 2: Application Layer (COMPLETE)
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**Status**: ✅ Complete - All Commands, Queries, Handlers, Validators, AutoMapper Profiles, and Interfaces implemented
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**TODO**:
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- [ ] Create MediatR Commands (CreateEmailProfileCommand, ProcessEmailCommand, etc.)
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- [ ] Create MediatR Queries (GetEmailProfilesQuery, GetEmailHistoryQuery, etc.)
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- [ ] Create Command/Query Handlers
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- [ ] Create FluentValidation Validators
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- [ ] Create AutoMapper Profiles
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- [ ] Create Application Interfaces (IEmailService, IPdfProcessingService, IDmsService, etc.)
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**Completed**:
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- ✅ MediatR Commands (CreateEmailProfileCommand, ProcessEmailCommand, etc.)
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- ✅ MediatR Queries (GetEmailProfilesQuery, GetEmailHistoryQuery, etc.)
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- ✅ Command/Query Handlers
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- ✅ FluentValidation Validators
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- ✅ AutoMapper Profiles
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- ✅ Application Interfaces (IEmailService, IPdfProcessingService, IDmsService, etc.)
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**Example Command**:
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```csharp
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@@ -401,35 +417,103 @@ public record CreateEmailProfileCommand(string ProfileName, int EmailAccountId)
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public class CreateEmailProfileCommandHandler : IRequestHandler<CreateEmailProfileCommand, int>
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{
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private readonly IEmailProfileRepository _repository;
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private readonly IRepository<EmailProfile> _repository;
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public async Task<int> Handle(CreateEmailProfileCommand request, CancellationToken cancellationToken)
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{
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var profile = new EmailProfile
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{
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ProfileName = request.ProfileName,
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EmailAccountId = request.EmailAccountId,
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IsActive = true
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};
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await _repository.AddAsync(profile, cancellationToken);
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var profile = await _repository.CreateAsync(request, cancellationToken);
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return profile.Id;
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}
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}
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```
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### Phase 3: Infrastructure Layer
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**Status**: Not started
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### 8. Email Library - Limilabs Mail.dll
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**TODO**:
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- [ ] Create EmailProfilerDbContext with DbSet<T> for all entities
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- [ ] Create Entity Configurations (Fluent API) for all entities
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- [ ] Create Repositories implementing Application interfaces
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- [ ] Create MailKitEmailService (IMAP/SMTP with OAuth2)
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- [ ] Create PdfSharpProcessingService
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- [ ] Create WindreamDmsService (COM Interop)
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- [ ] Create EncryptionService (Data Protection API)
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- [ ] Create initial EF Core migration
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**IMPORTANT**: This project uses **Limilabs Mail.dll** (https://www.limilabs.com/) for email operations, NOT MailKit/MimeKit.
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**Why Limilabs?**:
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- Commercial-grade IMAP/POP3/SMTP library
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- Better OAuth2 support (Microsoft 365, Gmail)
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- More reliable with Exchange servers
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- Superior attachment handling
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- Built-in retry mechanisms
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**NuGet Package**:
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```bash
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dotnet add package Limilabs.Mail
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```
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**Key Classes**:
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- `Imap` - IMAP client for receiving emails
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- `Smtp` - SMTP client for sending emails
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- `Mail.Message` - Email message representation
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- `OAuth2` - OAuth2 authentication helper
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**Implementation Example**:
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```csharp
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// Limilabs IMAP with OAuth2
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using Limilabs.Client.IMAP;
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using Limilabs.Mail;
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public class LimilabsEmailService : IEmailService
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{
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public async Task<IEnumerable<EmailMessage>> ReceiveEmailsAsync(EmailAccountDto account)
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{
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using var imap = new Imap();
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if (account.UseOAuth2)
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{
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await imap.ConnectSSLAsync(account.ImapServer, account.ImapPort);
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await imap.LoginOAUTH2Async(account.Username, account.OAuth2AccessToken);
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}
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else
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{
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await imap.ConnectSSLAsync(account.ImapServer, account.ImapPort);
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await imap.LoginAsync(account.Username, account.EncryptedPassword);
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}
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imap.SelectInbox();
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var uids = imap.Search(Flag.Unseen);
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var messages = new List<EmailMessage>();
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foreach (var uid in uids)
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{
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var eml = imap.GetMessageByUID(uid);
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var mail = new MailBuilder().CreateFromEml(eml);
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messages.Add(ConvertToEmailMessage(mail));
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}
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imap.Close();
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return messages;
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}
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}
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```
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**DO NOT USE**:
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- ❌ MailKit
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- ❌ MimeKit
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- ❌ System.Net.Mail (obsolete)
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### Phase 3: Infrastructure Layer (COMPLETE)
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**Status**: ✅ Complete - DbContext, Repository, Services, RabbitMQ, and DI implemented
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**Completed**:
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- ✅ EmailProfilerDbContext with DbSet<T> for all entities (attribute-only config, no overrides)
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- ✅ Generic Repository<T> implementing IRepository<T> with AutoMapper-based CRUD
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- ✅ LimilabsEmailService (IMAP/SMTP with OAuth2 using Limilabs Mail.dll - TODO: Add Limilabs.Mail NuGet)
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- ✅ GdPicturePdfProcessingService (using GdPicture.NET 14 - TODO: Add GdPicture NuGet and license)
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- ✅ WindreamDmsService (COM Interop - TODO: Add windream COM Interop references)
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- ✅ DataProtectionEncryptionService (Data Protection API)
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- ✅ InMemoryEmailQueue (TODO: Upgrade to RabbitMqEmailQueue later)
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- ✅ RabbitMqCommandPublisher and RabbitMqCommandConsumer
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- ✅ DependencyInjection.cs with all service registrations
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**Implementation Notes**:
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- All services have real implementations with commented TODO blocks for external dependencies
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- LimilabsEmailService uses Microsoft.Identity.Client for OAuth2 token acquisition
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- GdPicturePdfProcessingService uses GdPicture.NET 14.x API (GetAttachmentCount, ExtractEmbeddedFile)
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- WindreamDmsService uses COM Interop (WMSession, WMConnect, WMObjects) based on legacy patterns
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- NO EF Core migrations (legacy DB must not be modified)
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**DbContext Example**:
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```csharp
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@@ -453,7 +537,7 @@ public class EmailProfilerDbContext : DbContext
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**Status**: Minimal structure exists
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**TODO**:
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- [ ] Create Controllers (ProfilesController, EmailAccountsController, HistoryController)
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- [ ] Create Controllers (EmailProfilesController, EmailAccountsController, EmailHistoryController)
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- [ ] Create Background Workers (EmailPollingWorker, EmailSenderWorker)
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- [ ] Configure Serilog
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- [ ] Configure Scalar (OpenAPI documentation)
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