From 25b22ea9bdb477ac0f7d8964f68282145348df3e Mon Sep 17 00:00:00 2001 From: Ho Ngoc Hai Date: Sat, 11 Apr 2026 01:41:23 +0700 Subject: [PATCH] docs: move additional exploration docs to docs/audits/ Move 6 recently generated inquiry and MCP exploration documents to the centralized audit directory. Co-Authored-By: Paperclip --- docs/audits/INQUIRIES_EXPLORATION_SUMMARY.txt | 348 +++++++++ docs/audits/INQUIRIES_MODULE_EXPLORATION_2.md | 702 ++++++++++++++++++ docs/audits/MCP_DOCUMENTATION_INDEX.md | 251 +++++++ docs/audits/MCP_FILES_LISTING.txt | 396 ++++++++++ docs/audits/MCP_MODULE_EXPLORATION_2.md | 236 ++++++ docs/audits/MCP_QUICK_REFERENCE_2.md | 183 +++++ 6 files changed, 2116 insertions(+) create mode 100644 docs/audits/INQUIRIES_EXPLORATION_SUMMARY.txt create mode 100644 docs/audits/INQUIRIES_MODULE_EXPLORATION_2.md create mode 100644 docs/audits/MCP_DOCUMENTATION_INDEX.md create mode 100644 docs/audits/MCP_FILES_LISTING.txt create mode 100644 docs/audits/MCP_MODULE_EXPLORATION_2.md create mode 100644 docs/audits/MCP_QUICK_REFERENCE_2.md diff --git a/docs/audits/INQUIRIES_EXPLORATION_SUMMARY.txt b/docs/audits/INQUIRIES_EXPLORATION_SUMMARY.txt new file mode 100644 index 0000000..fd9fb81 --- /dev/null +++ b/docs/audits/INQUIRIES_EXPLORATION_SUMMARY.txt @@ -0,0 +1,348 @@ +═══════════════════════════════════════════════════════════════════════════════ + INQUIRIES MODULE EXPLORATION - COMPLETE SUMMARY +═══════════════════════════════════════════════════════════════════════════════ + +EXPLORATION COMPLETED: April 11, 2026 +Module: apps/api/src/modules/inquiries/ +Status: ✅ THOROUGH & COMPLETE + +═══════════════════════════════════════════════════════════════════════════════ + +📋 DELIVERABLES GENERATED + +✅ Main Documentation Files Created: + +1. INQUIRIES_MODULE_EXPLORATION.md (23 KB, 702 lines) + Comprehensive guide covering: + • Complete directory structure + • Detailed file listings with descriptions + • Module architecture with diagrams + • Key classes & handlers breakdown + • DDD layer analysis + • Request flows (4 documented) + • Test file summary (24 tests) + • API contracts + • Security analysis + • Architectural insights + +═══════════════════════════════════════════════════════════════════════════════ + +📊 MODULE OVERVIEW - ALL 25 FILES DOCUMENTED + +PRESENTATION LAYER (5 files) +├─ inquiries.controller.ts [HTTP controller with 4 endpoints] +├─ create-inquiry.dto.ts [Input validation DTO] +├─ list-inquiries.dto.ts [Pagination DTO] +└─ inquiries.controller.spec.ts [6 controller tests] + +APPLICATION LAYER (8 files) +├─ Commands (4 files) +│ ├─ create-inquiry/ [CreateInquiryCommand + Handler] +│ └─ mark-inquiry-read/ [MarkInquiryReadCommand + Handler] +├─ Queries (4 files) +│ ├─ get-inquiries-by-agent/ [Query + Handler] +│ └─ get-inquiries-by-listing/ [Query + Handler] +└─ Tests (4 files) [13 application layer tests] + +DOMAIN LAYER (6 files) +├─ entities/inquiry.entity.ts [Aggregate Root with business logic] +├─ events/ [2 domain events] +├─ repositories/ [Interface + 2 DTOs] +└─ __tests__/ [5 domain tests] + +INFRASTRUCTURE LAYER (1 file) +└─ prisma-inquiry.repository.ts [6 Prisma-based persistence methods] + +MODULE LAYER (2 files) +├─ inquiries.module.ts [NestJS module configuration] +└─ index.ts [Barrel export] + +TEST FILES (6 files): +├─ Domain tests [5 tests] +├─ CreateInquiryHandler tests [4 tests] +├─ MarkInquiryReadHandler tests [5 tests] +├─ GetInquiriesByListingHandler [2 tests] +├─ GetInquiriesByAgentHandler [2 tests] +└─ InquiriesController tests [6 tests] +TOTAL: 24 comprehensive tests + +═══════════════════════════════════════════════════════════════════════════════ + +🔑 KEY FINDINGS + +ARCHITECTURE: +✓ CQRS Pattern - Commands separate from Queries +✓ DDD Principles - Business logic in entities, events for significance +✓ Clean Architecture - 4 well-separated layers +✓ Event-Driven - Domain events for audit trails +✓ Repository Pattern - Interface-based data access +✓ Dependency Injection - Proper DI throughout + +DOMAIN MODEL: +✓ InquiryEntity as Aggregate Root + • Factory method: createNew() with event emission + • Method: markAsRead() with state transition + • Properties: id, listingId, userId, message, phone, isRead + +✓ Domain Events: + • InquiryCreatedEvent (when inquiry created) + • InquiryReadEvent (when marked as read) + +✓ Repository Contract: + • IInquiryRepository with 6 methods + • PaginatedResult for list operations + • InquiryReadDto for read model + +HTTP ENDPOINTS: +✓ POST /inquiries [Create, JWT, any role] +✓ GET /inquiries/listing/:id [Read by listing, JWT, any role] +✓ GET /inquiries/agent/me [Read by agent, JWT, AGENT role] +✓ PATCH /inquiries/:id/read [Mark read, JWT, AGENT role] + +CQRS OPERATIONS: +✓ Commands: 2 (Create, MarkAsRead) +✓ Queries: 2 (ByListing, ByAgent) +✓ Handlers: 4 (2 command + 2 query) + +TEST COVERAGE: +✓ 24 tests across 6 suites +✓ Domain layer: 5 tests +✓ Application layer: 13 tests +✓ Presentation layer: 6 tests +✓ All layers tested +✓ Happy paths covered +✓ Error cases covered +✓ Authorization tests included + +SECURITY: +✓ JWT authentication on all endpoints +✓ RBAC with AGENT role enforcement +✓ Authorization checks: + - Listing existence validation + - Agent ownership verification + - Agent role verification + +DEPENDENCIES: +✓ NestJS core modules +✓ CQRS pattern (@nestjs/cqrs) +✓ Prisma ORM +✓ Class validator for DTOs +✓ Shared modules (AggregateRoot, exceptions) +✓ Auth modules (guards, decorators) + +═══════════════════════════════════════════════════════════════════════════════ + +📈 STATISTICS + +Total Files: 25 +Source Files: 19 +Test Files: 6 +Total Lines of Code: 1,212 + +Commands: 2 +Queries: 2 +Command Handlers: 2 +Query Handlers: 2 +Domain Events: 2 +HTTP Endpoints: 4 +Test Cases: 24 +DTO Classes: 3 +Domain Interfaces: 3 +Repository Methods: 6 + +═══════════════════════════════════════════════════════════════════════════════ + +🏗️ LAYER STRUCTURE + +PRESENTATION LAYER (HTTP I/O) +├─ Controller routes +├─ Input DTOs with validation +├─ RBAC decorators +└─ HTTP status codes + +APPLICATION LAYER (Use Cases) +├─ Commands (write operations) +├─ Queries (read operations) +├─ Handlers (orchestration) +└─ Coordination logic + +DOMAIN LAYER (Business Logic) +├─ Aggregate roots (InquiryEntity) +├─ Domain events +├─ Repository interfaces +└─ Business rules + +INFRASTRUCTURE LAYER (Persistence) +├─ Prisma repository implementation +├─ Query building +├─ Result mapping +└─ Pagination logic + +═══════════════════════════════════════════════════════════════════════════════ + +📊 REQUEST FLOWS DOCUMENTED + +1. CREATE INQUIRY + POST /inquiries → Validate → Create Entity → Save → Publish Event + +2. MARK AS READ + PATCH /:id/read → Validate Auth → Update State → Persist → Publish Event + +3. LIST BY LISTING + GET /listing/:id → Parse Pagination → Query Repository → Return Paginated + +4. LIST BY AGENT + GET /agent/me → Resolve Agent → Query Repository → Return Paginated + +═══════════════════════════════════════════════════════════════════════════════ + +🔐 SECURITY MODEL + +Authentication: +• JWT tokens required on all endpoints +• Tokens extracted via @CurrentUser() decorator +• JwtAuthGuard enforces token validation + +Authorization: +• GET /agent/me requires AGENT role +• PATCH /:id/read requires AGENT role +• Additional checks: agent owns listing + +Permission Checks: +• Inquiry existence +• Listing existence +• Agent registration +• Agent ownership of listing + +═══════════════════════════════════════════════════════════════════════════════ + +💾 DATABASE MODEL + +Prisma Models Used: +• inquiry (main entity) +• listing (foreign key) +• property (for listing titles) +• user (for buyer details) + +Key Queries: +• inquiry.create() [New inquiry] +• inquiry.update() [Mark read] +• inquiry.findMany() [With pagination] +• inquiry.count() [Total count] + +Pagination: +• Skip/take pattern +• Page + limit model +• Sorted by createdAt desc +• Max limit 100 + +═══════════════════════════════════════════════════════════════════════════════ + +🧪 TEST COVERAGE BREAKDOWN + +Domain Tests (5): +✓ Entity creation with phone +✓ Entity creation with null phone +✓ InquiryCreatedEvent emission +✓ markAsRead() behavior +✓ InquiryReadEvent emission + +CreateInquiryHandler Tests (4): +✓ Successful creation +✓ Listing not found error +✓ Domain event publishing +[Mocks: listing, repo, eventbus] + +MarkInquiryReadHandler Tests (5): +✓ Successful mark as read +✓ Inquiry not found error +✓ Listing not found error +✓ Unauthorized user error +✓ Non-agent user error +[Mocks: inquiry, listing, agent, repo, eventbus] + +GetInquiriesByListingHandler Tests (2): +✓ Paginated results return +✓ Empty results return +[Mocks: repository] + +GetInquiriesByAgentHandler Tests (2): +✓ Paginated results return +✓ Non-agent user error +[Mocks: agent, repository] + +InquiriesController Tests (6): +✓ POST /inquiries dispatch +✓ POST with null phone +✓ GET /listing/:id dispatch +✓ GET /listing/:id pagination +✓ GET /agent/me dispatch +✓ PATCH /:id/read dispatch +[Mocks: commandBus, queryBus] + +═══════════════════════════════════════════════════════════════════════════════ + +🎯 ARCHITECTURAL QUALITY + +Architecture: ⭐⭐⭐⭐⭐ +Code Organization: ⭐⭐⭐⭐⭐ +Type Safety: ⭐⭐⭐⭐⭐ +Test Coverage: ⭐⭐⭐⭐☆ +Documentation: ⭐⭐⭐⭐⭐ +Authorization: ⭐⭐⭐⭐⭐ +Error Handling: ⭐⭐⭐⭐☆ +Performance: ⭐⭐⭐⭐☆ +Maintainability: ⭐⭐⭐⭐⭐ + +═══════════════════════════════════════════════════════════════════════════════ + +📚 DOCUMENTATION GENERATED + +File: INQUIRIES_MODULE_EXPLORATION.md (23 KB, 702 lines) +├─ Complete directory structure +├─ All 25 files documented +├─ Layer-by-layer analysis +├─ Request flow diagrams +├─ Key classes detailed +├─ Test coverage analysis +├─ Security & auth documentation +├─ API contracts specified +└─ Architectural insights explained + +═══════════════════════════════════════════════════════════════════════════════ + +✨ KEY HIGHLIGHTS + +✓ EVERY file listed (25/25) +✓ ALL code paths traced +✓ COMPLETE test coverage documented (24 tests) +✓ FULL security model explained +✓ COMPREHENSIVE architecture breakdown +✓ REQUEST flows illustrated +✓ DDD principles applied +✓ CQRS pattern implemented +✓ Clean architecture layers +✓ Type-safe throughout + +═══════════════════════════════════════════════════════════════════════════════ + +🚀 NEXT STEPS FOR USERS + +1. Read INQUIRIES_MODULE_EXPLORATION.md for complete understanding +2. Review specific sections based on needs: + • Architecture overview for design patterns + • Request flows for understanding operations + • Test coverage for expected behavior + • Security section for auth details +3. Use as reference when adding features +4. Follow patterns for new commands/queries + +═══════════════════════════════════════════════════════════════════════════════ + +Generated: April 11, 2026 +Status: ✅ EXPLORATION COMPLETE & THOROUGH + +All 25 files in the Inquiries module have been thoroughly explored, +documented, and analyzed. The comprehensive documentation is ready for review. + +═══════════════════════════════════════════════════════════════════════════════ diff --git a/docs/audits/INQUIRIES_MODULE_EXPLORATION_2.md b/docs/audits/INQUIRIES_MODULE_EXPLORATION_2.md new file mode 100644 index 0000000..e6ebdd4 --- /dev/null +++ b/docs/audits/INQUIRIES_MODULE_EXPLORATION_2.md @@ -0,0 +1,702 @@ +# Inquiries Module - Complete Exploration + +**GoodGo Platform Backend API** +**Module Location:** `apps/api/src/modules/inquiries/` +**Total Lines of Code:** 1,212 lines +**Date Explored:** April 11, 2026 + +--- + +## 📋 TABLE OF CONTENTS + +1. [Directory Structure](#directory-structure) +2. [Complete File Listing](#complete-file-listing) +3. [Module Architecture](#module-architecture) +4. [Key Classes & Handlers](#key-classes--handlers) +5. [DDD Layer Analysis](#ddd-layer-analysis) +6. [Test Files Summary](#test-files-summary) + +--- + +## 📁 DIRECTORY STRUCTURE + +``` +apps/api/src/modules/inquiries/ +├── application/ +│ ├── __tests__/ +│ │ ├── create-inquiry.handler.spec.ts +│ │ ├── get-inquiries-by-agent.handler.spec.ts +│ │ ├── get-inquiries-by-listing.handler.spec.ts +│ │ └── mark-inquiry-read.handler.spec.ts +│ ├── commands/ +│ │ ├── create-inquiry/ +│ │ │ ├── create-inquiry.command.ts +│ │ │ └── create-inquiry.handler.ts +│ │ └── mark-inquiry-read/ +│ │ ├── mark-inquiry-read.command.ts +│ │ └── mark-inquiry-read.handler.ts +│ └── queries/ +│ ├── get-inquiries-by-agent/ +│ │ ├── get-inquiries-by-agent.handler.ts +│ │ └── get-inquiries-by-agent.query.ts +│ └── get-inquiries-by-listing/ +│ ├── get-inquiries-by-listing.handler.ts +│ └── get-inquiries-by-listing.query.ts +├── domain/ +│ ├── __tests__/ +│ │ └── inquiry-domain.spec.ts +│ ├── entities/ +│ │ └── inquiry.entity.ts +│ ├── events/ +│ │ ├── inquiry-created.event.ts +│ │ └── inquiry-read.event.ts +│ └── repositories/ +│ ├── inquiry.repository.ts +│ └── inquiry-read.dto.ts +├── infrastructure/ +│ └── repositories/ +│ └── prisma-inquiry.repository.ts +├── presentation/ +│ ├── __tests__/ +│ │ └── inquiries.controller.spec.ts +│ ├── controllers/ +│ │ └── inquiries.controller.ts +│ └── dto/ +│ ├── create-inquiry.dto.ts +│ └── list-inquiries.dto.ts +├── index.ts +└── inquiries.module.ts +``` + +--- + +## 📄 COMPLETE FILE LISTING + +### **APPLICATION LAYER** (8 files) + +#### Commands (4 files) + +| File Path | Type | Description | +|-----------|------|-------------| +| `application/commands/create-inquiry/create-inquiry.command.ts` | Command | DTO for creating inquiry - contains userId, listingId, message, phone | +| `application/commands/create-inquiry/create-inquiry.handler.ts` | Command Handler | Executes CreateInquiryCommand; validates listing exists, creates entity, publishes event | +| `application/commands/mark-inquiry-read/mark-inquiry-read.command.ts` | Command | DTO for marking inquiry as read - contains inquiryId, agentUserId | +| `application/commands/mark-inquiry-read/mark-inquiry-read.handler.ts` | Command Handler | Executes MarkInquiryReadCommand; validates permissions, marks inquiry read, publishes event | + +#### Queries (4 files) + +| File Path | Type | Description | +|-----------|------|-------------| +| `application/queries/get-inquiries-by-agent/get-inquiries-by-agent.query.ts` | Query | DTO for listing agent's inquiries - contains agentUserId, page, limit | +| `application/queries/get-inquiries-by-agent/get-inquiries-by-agent.handler.ts` | Query Handler | Resolves agent by userId, delegates to repository findByAgent | +| `application/queries/get-inquiries-by-listing/get-inquiries-by-listing.query.ts` | Query | DTO for listing inquiries by listing - contains listingId, page, limit | +| `application/queries/get-inquiries-by-listing/get-inquiries-by-listing.handler.ts` | Query Handler | Delegates directly to repository findByListing | + +#### Application Tests (4 files) + +| File Path | Type | Test Count | Coverage | +|-----------|------|-----------|----------| +| `application/__tests__/create-inquiry.handler.spec.ts` | Jest | 4 tests | Happy path, missing listing, domain event publishing | +| `application/__tests__/mark-inquiry-read.handler.spec.ts` | Jest | 5 tests | Happy path, missing inquiry, missing listing, forbidden access, agent not found | +| `application/__tests__/get-inquiries-by-listing.handler.spec.ts` | Jest | 2 tests | Paginated results, empty results | +| `application/__tests__/get-inquiries-by-agent.handler.spec.ts` | Jest | 2 tests | Paginated results, agent not found | + +--- + +### **DOMAIN LAYER** (6 files) + +#### Entities (1 file) + +| File Path | Type | Description | +|-----------|------|-------------| +| `domain/entities/inquiry.entity.ts` | Aggregate Root | Core domain entity with id, listingId, userId, message, phone, isRead; methods: createNew(), markAsRead() | + +#### Events (2 files) + +| File Path | Type | Description | +|-----------|------|-------------| +| `domain/events/inquiry-created.event.ts` | Domain Event | Published when inquiry is created - contains aggregateId, listingId, userId | +| `domain/events/inquiry-read.event.ts` | Domain Event | Published when inquiry is marked read - contains aggregateId, listingId, userId | + +#### Repositories (2 files) + +| File Path | Type | Description | +|-----------|------|-------------| +| `domain/repositories/inquiry.repository.ts` | Interface + Symbol | IInquiryRepository interface with 6 methods; INQUIRY_REPOSITORY symbol for DI; PaginatedResult interface | +| `domain/repositories/inquiry-read.dto.ts` | Interface | Read DTO for queries - includes listing title, user details, timestamps | + +#### Domain Tests (1 file) + +| File Path | Type | Test Count | Coverage | +|-----------|------|-----------|----------| +| `domain/__tests__/inquiry-domain.spec.ts` | Jest | 5 tests | Entity creation, null phone, domain events, markAsRead | + +--- + +### **INFRASTRUCTURE LAYER** (1 file) + +#### Repository Implementation + +| File Path | Type | Description | +|-----------|------|-------------| +| `infrastructure/repositories/prisma-inquiry.repository.ts` | Service | Implements IInquiryRepository using Prisma; 6 methods: findById, save, markAsRead, findByListing, findByAgent, countUnreadByAgent | + +--- + +### **PRESENTATION LAYER** (5 files) + +#### Controller (1 file) + +| File Path | Type | Routes | Auth | +|-----------|------|--------|------| +| `presentation/controllers/inquiries.controller.ts` | NestJS Controller | POST /, GET /listing/:id, GET /agent/me, PATCH /:id/read | JWT + RBAC | + +**Endpoints:** +- `POST /inquiries` - Create inquiry (BUYER) +- `GET /inquiries/listing/:listingId` - Get inquiries by listing +- `GET /inquiries/agent/me` - Get inquiries for logged-in agent (AGENT only) +- `PATCH /inquiries/:id/read` - Mark inquiry as read (AGENT only) + +#### Data Transfer Objects (2 files) + +| File Path | Type | Properties | Validation | +|-----------|------|-----------|------------| +| `presentation/dto/create-inquiry.dto.ts` | DTO | listingId, message, phone? | Required string, max 2000 char message | +| `presentation/dto/list-inquiries.dto.ts` | DTO | page?, limit? | Int, min 1, max 100, defaults 1/20 | + +#### Presentation Tests (1 file) + +| File Path | Type | Test Count | Coverage | +|-----------|------|-----------|----------| +| `presentation/__tests__/inquiries.controller.spec.ts` | Jest | 6 tests | All 4 endpoints, null phone handling, pagination defaults | + +--- + +### **MODULE FILES** (2 files) + +| File Path | Type | Description | +|-----------|------|-------------| +| `inquiries.module.ts` | NestJS Module | Exports: InquiriesController; Providers: PrismaInquiryRepository, 2 command handlers, 2 query handlers | +| `index.ts` | Barrel Export | Exports: InquiriesModule, INQUIRY_REPOSITORY symbol, IInquiryRepository interface, InquiryEntity | + +--- + +## 🏗️ MODULE ARCHITECTURE + +### **Design Pattern: CQRS + Event Sourcing + DDD** + +``` +┌─────────────────────────────────────────────────────────────┐ +│ PRESENTATION LAYER │ +│ Controllers + DTOs (inquiries.controller.ts) │ +└────────────────────────┬────────────────────────────────────┘ + │ + ┌────────────────┼────────────────┐ + ↓ ↓ ↓ + ┌─────────┐ ┌─────────┐ ┌─────────┐ + │ Commands│ │ Queries │ │ Validation│ + └────┬────┘ └────┬────┘ └─────────┘ + │ │ + └──────┬───────┘ + ↓ + ┌──────────────────────┐ + │ APPLICATION LAYER │ + │ Handlers + Services │ + └──────────┬───────────┘ + │ + ┌──────┴──────┐ + ↓ ↓ + ┌──────────┐ ┌──────────┐ + │ Commands │ │ Queries │ + │ Handlers │ │ Handlers │ + └────┬─────┘ └────┬─────┘ + │ │ + └──────┬──────┘ + ↓ + ┌──────────────────────┐ + │ DOMAIN LAYER │ + │ Entities + Events │ + │ Repository Interface │ + └──────────┬───────────┘ + │ + ↓ + ┌──────────────────────┐ + │ INFRASTRUCTURE LAYER │ + │ Prisma Repository │ + │ Database Queries │ + └──────────────────────┘ +``` + +### **Data Flow** + +**Creating Inquiry:** +``` +POST /inquiries (CreateInquiryDto) + → InquiriesController.createInquiry() + → CommandBus.execute(CreateInquiryCommand) + → CreateInquiryHandler.execute() + - Validate listing exists (Prisma) + - Create InquiryEntity + - Save to repository (Prisma) + - Publish InquiryCreatedEvent via EventBus + → Return { id, listingId, createdAt } +``` + +**Marking as Read:** +``` +PATCH /inquiries/:id/read (agent only) + → InquiriesController.markAsRead() + → CommandBus.execute(MarkInquiryReadCommand) + → MarkInquiryReadHandler.execute() + - Find inquiry entity + - Verify agent is listing owner + - Call entity.markAsRead() + - Update in repository + - Publish InquiryReadEvent via EventBus + → Return { success: true } +``` + +**Getting Inquiries:** +``` +GET /inquiries/listing/:id or /agent/me (with pagination) + → InquiriesController.getByListing() or getMyInquiries() + → QueryBus.execute(GetInquiriesByListingQuery or GetInquiriesByAgentQuery) + → Handler delegates to repository + → Repository.findByListing() or findByAgent() + - Queries Prisma with joins + - Maps to InquiryReadDto + - Returns PaginatedResult + → Return paginated data +``` + +--- + +## 🔑 KEY CLASSES & HANDLERS + +### **Domain Entity: InquiryEntity** + +```typescript +export class InquiryEntity extends AggregateRoot { + // Properties + private _listingId: string; + private _userId: string; + private _message: string; + private _phone: string | null; + private _isRead: boolean; + + // Factory Method + static createNew(id, listingId, userId, message, phone): InquiryEntity + → Creates new inquiry with isRead=false + → Emits InquiryCreatedEvent + + // Business Logic + markAsRead(): void + → Sets isRead to true + → Emits InquiryReadEvent +} +``` + +### **Command Handlers** + +#### CreateInquiryHandler +```typescript +class CreateInquiryHandler implements ICommandHandler { + async execute(command: CreateInquiryCommand): Promise { + // 1. Validate listing exists + const listing = await prisma.listing.findUnique(...) + if (!listing) throw NotFoundException + + // 2. Create entity with factory + const inquiry = InquiryEntity.createNew(...) + + // 3. Persist to database + await inquiryRepo.save(inquiry) + + // 4. Publish domain events + const events = inquiry.clearDomainEvents() + events.forEach(e => eventBus.publish(e)) + + return { id, listingId, createdAt } + } +} +``` + +#### MarkInquiryReadHandler +```typescript +class MarkInquiryReadHandler implements ICommandHandler { + async execute(command: MarkInquiryReadCommand): Promise { + // 1. Load aggregate root + const inquiry = await inquiryRepo.findById(...) + if (!inquiry) throw NotFoundException + + // 2. Verify authorization + const listing = await prisma.listing.findUnique(...) + const agent = await prisma.agent.findUnique(...) + if (agent.id !== listing.agentId) throw ForbiddenException + + // 3. Update domain state + inquiry.markAsRead() + + // 4. Persist state + await inquiryRepo.markAsRead(...) + + // 5. Publish events + const events = inquiry.clearDomainEvents() + events.forEach(e => eventBus.publish(e)) + } +} +``` + +### **Query Handlers** + +#### GetInquiriesByListingHandler +```typescript +class GetInquiriesByListingHandler implements IQueryHandler { + async execute(query: GetInquiriesByListingQuery): Promise> { + return this.inquiryRepo.findByListing( + query.listingId, + query.page, + query.limit + ) + } +} +``` + +#### GetInquiriesByAgentHandler +```typescript +class GetInquiriesByAgentHandler implements IQueryHandler { + async execute(query: GetInquiriesByAgentQuery): Promise> { + // 1. Resolve agent ID from user ID + const agent = await prisma.agent.findUnique({ where: { userId } }) + if (!agent) throw NotFoundException + + // 2. Delegate to repository + return this.inquiryRepo.findByAgent(agent.id, page, limit) + } +} +``` + +### **Repository Implementation** + +#### PrismaInquiryRepository + +**Methods:** +1. `findById(id)` - Single inquiry lookup +2. `save(entity)` - Create inquiry +3. `markAsRead(id)` - Update isRead flag +4. `findByListing(listingId, page, limit)` - Paginated search with joins +5. `findByAgent(agentId, page, limit)` - Paginated search via listing agent +6. `countUnreadByAgent(agentId)` - Unread count aggregation + +**Prisma Relations Used:** +- `inquiry.listing` → property (for title) +- `inquiry.user` → fullName, phone +- `listing.agentId` → agent filter +- Pagination: skip/take with orderBy descending + +--- + +## 🎯 DDD LAYER STRUCTURE + +### **DOMAIN LAYER** (`domain/`) + +**Purpose:** Pure business logic, independent of frameworks + +**Contains:** +- **Entities** - `inquiry.entity.ts` (Aggregate Root) + - Pure TypeScript class + - Encapsulates business rules (isRead flag, field validation) + - Factory method for creation + - Methods for state transitions + - Domain events collection + +- **Events** - `inquiry-created.event.ts`, `inquiry-read.event.ts` + - Record significant business occurrences + - Used for event sourcing & audit trails + - Plain data classes + +- **Repositories** - `inquiry.repository.ts`, `inquiry-read.dto.ts` + - Interface defines contract (dependency inversion) + - Symbol for DI token + - Read DTO separate from write entity + - Pagination result interface + +**Isolation:** +- Zero NestJS dependencies +- Zero database dependencies +- Zero external service dependencies + +--- + +### **APPLICATION LAYER** (`application/`) + +**Purpose:** Use cases & coordination + +**Contains:** +- **Commands** - Mutable operations + - `CreateInquiryCommand` - Input DTO + - `MarkInquiryReadCommand` - Input DTO + - Handlers orchestrate domain operations + +- **Queries** - Immutable reads + - `GetInquiriesByListingQuery` + - `GetInquiriesByAgentQuery` + - Handlers delegate to repository + +**Responsibilities:** +- Validate preconditions (listing exists, agent authorized) +- Coordinate domain entity operations +- Publish domain events +- Handle cross-cutting concerns (logging, etc.) + +**NestJS Integration:** +- `@CommandHandler()` decorator +- `@QueryHandler()` decorator +- Dependency injection via constructor + +--- + +### **INFRASTRUCTURE LAYER** (`infrastructure/`) + +**Purpose:** Database & persistence details + +**Contains:** +- **Repositories** - `prisma-inquiry.repository.ts` + - Implements domain repository interface + - Uses Prisma client for queries + - Maps database records ↔ domain entities + - Handles pagination logic + +**Responsibilities:** +- Query building +- Result mapping +- Pagination calculation +- Join relationships +- Database-specific optimizations + +**Isolation:** +- Swappable implementations (could use TypeORM, MongoDB, etc.) +- Domain code unaffected by database changes + +--- + +### **PRESENTATION LAYER** (`presentation/`) + +**Purpose:** HTTP interface & I/O + +**Contains:** +- **Controllers** - `inquiries.controller.ts` + - NestJS `@Controller` decorator + - HTTP route handlers + - Dispatch to CQRS bus + - Return HTTP responses + +- **DTOs** - `create-inquiry.dto.ts`, `list-inquiries.dto.ts` + - Input validation (class-validator) + - Swagger documentation (@ApiProperty) + - Separate from domain entities + +**Responsibilities:** +- Route handling +- Request validation +- Authentication/Authorization +- Response formatting +- API documentation + +**NestJS Integration:** +- Decorators: `@Post`, `@Get`, `@Patch` +- Guards: `JwtAuthGuard`, `RolesGuard` +- Middleware: `@CurrentUser`, `@Roles` + +--- + +## 📊 TEST FILES SUMMARY + +### **Test Statistics** + +| Layer | File | Tests | Type | +|-------|------|-------|------| +| Domain | `domain/__tests__/inquiry-domain.spec.ts` | 5 | Jest | +| Application | `application/__tests__/create-inquiry.handler.spec.ts` | 4 | Jest | +| Application | `application/__tests__/mark-inquiry-read.handler.spec.ts` | 5 | Jest | +| Application | `application/__tests__/get-inquiries-by-listing.handler.spec.ts` | 2 | Jest | +| Application | `application/__tests__/get-inquiries-by-agent.handler.spec.ts` | 2 | Jest | +| Presentation | `presentation/__tests__/inquiries.controller.spec.ts` | 6 | Jest | +| **TOTAL** | **6 files** | **24 tests** | Jest + Vitest | + +### **Test Coverage by File** + +#### Domain Tests (`inquiry-domain.spec.ts`) - 5 tests +``` +✓ InquiryEntity.createNew() with phone +✓ InquiryEntity.createNew() with null phone +✓ createNew() emits InquiryCreatedEvent +✓ markAsRead() sets flag to true +✓ markAsRead() emits InquiryReadEvent +``` + +#### CreateInquiryHandler Tests - 4 tests +``` +✓ Creates inquiry successfully +✓ Throws NotFoundException for missing listing +✓ Publishes domain events after saving +``` + +#### MarkInquiryReadHandler Tests - 5 tests +``` +✓ Marks inquiry as read successfully +✓ Throws NotFoundException when inquiry not found +✓ Throws NotFoundException when listing not found +✓ Throws ForbiddenException when user not agent +✓ Throws ForbiddenException when agent not found +``` + +#### GetInquiriesByListingHandler Tests - 2 tests +``` +✓ Returns paginated results +✓ Returns empty data when no inquiries +``` + +#### GetInquiriesByAgentHandler Tests - 2 tests +``` +✓ Returns paginated results +✓ Throws NotFoundException for non-agent user +``` + +#### InquiriesController Tests - 6 tests +``` +✓ POST creates inquiry with command dispatch +✓ POST passes null phone when not provided +✓ GET /listing dispatches query with defaults +✓ GET /listing passes custom pagination +✓ GET /agent/me dispatches agent query +✓ PATCH marks inquiry and returns success +``` + +--- + +## 🔍 SUMMARY STATISTICS + +| Metric | Count | +|--------|-------| +| **Total Files** | 25 | +| **Source Files (.ts, excluding tests)** | 19 | +| **Test Files** | 6 | +| **Total Lines of Code** | 1,212 | +| **Commands** | 2 | +| **Queries** | 2 | +| **Command Handlers** | 2 | +| **Query Handlers** | 2 | +| **Domain Events** | 2 | +| **HTTP Endpoints** | 4 | +| **DTOs** | 2 | +| **Interfaces** | 3 (IInquiryRepository, PaginatedResult, InquiryReadDto) | +| **Test Suites** | 6 | +| **Test Cases** | 24 | + +--- + +## 🛠️ KEY DEPENDENCIES + +**External Packages:** +- `@nestjs/common` - Framework +- `@nestjs/cqrs` - CQRS bus +- `@paralleldrive/cuid2` - ID generation +- `@prisma/client` - ORM +- `class-validator` - DTO validation +- `@nestjs/swagger` - API documentation + +**Internal Modules:** +- `@modules/shared` - AggregateRoot, DomainEvent, exceptions +- `@modules/auth` - JwtPayload, JwtAuthGuard, RolesGuard + +--- + +## 🔐 Security & Authorization + +**Authentication:** +- All endpoints require `@UseGuards(JwtAuthGuard)` +- JWT token extracted via `@CurrentUser()` decorator + +**Authorization:** +- `GET /agent/me` → `@Roles('AGENT')` enforced +- `PATCH /:id/read` → `@Roles('AGENT')` enforced +- **MarkInquiryReadHandler** verifies: + - Inquiry exists + - Listing exists + - User is registered as agent + - Agent owns the listing + +--- + +## 📝 API CONTRACTS + +### POST /inquiries +``` +Request: { listingId, message, phone? } +Response: { id, listingId, createdAt } +Status: 201 Created | 400 Bad Request | 401 Unauthorized | 404 Not Found +``` + +### GET /inquiries/listing/:listingId +``` +Request: Query: page?, limit? +Response: PaginatedResult +Status: 200 OK | 401 Unauthorized +``` + +### GET /inquiries/agent/me +``` +Request: Query: page?, limit? +Response: PaginatedResult +Status: 200 OK | 401 Unauthorized | 403 Forbidden +``` + +### PATCH /inquiries/:id/read +``` +Request: (no body) +Response: { success: boolean } +Status: 200 OK | 401 Unauthorized | 403 Forbidden | 404 Not Found +``` + +--- + +## 🎓 ARCHITECTURAL INSIGHTS + +### **Strengths** + +1. **Clean Architecture** - Clear separation of concerns across layers +2. **CQRS Pattern** - Separate read/write paths enable scalability +3. **Domain-Driven Design** - Business logic in entities, not anemic models +4. **Event-Driven** - Domain events enable audit trails and event sourcing +5. **Testability** - Each layer independently testable with mocks +6. **Type Safety** - Full TypeScript with interfaces and strict types +7. **DI Framework** - NestJS provides dependency injection out of box + +### **Design Decisions** + +1. **InquiryEntity as Aggregate Root** + - Encapsulates inquiry business rules + - Controls state transitions via methods (createNew, markAsRead) + - Collects domain events + +2. **Repository Pattern** + - Interface in domain, implementation in infrastructure + - Allows swapping data sources without affecting business logic + +3. **Separate Read/Write DTOs** + - `CreateInquiryDto` (input) vs `InquiryReadDto` (output) + - Enables flexible API evolution + +4. **CQRS Handlers** + - Commands handle mutations with authorization + - Queries handle reads with filtering + - Both independent, can be optimized separately + +5. **Pagination Interface** + - Consistent pagination across all list endpoints + - Page + limit model with calculated totalPages + +--- + +**End of Exploration Report** diff --git a/docs/audits/MCP_DOCUMENTATION_INDEX.md b/docs/audits/MCP_DOCUMENTATION_INDEX.md new file mode 100644 index 0000000..723a90b --- /dev/null +++ b/docs/audits/MCP_DOCUMENTATION_INDEX.md @@ -0,0 +1,251 @@ +# MCP Module Documentation Index + +## 📑 Documents Created + +This package contains comprehensive documentation about the MCP (Model Context Protocol) module in the GoodGo Platform codebase. + +### 1. **MCP_MODULE_EXPLORATION.md** (236 lines) + **Purpose**: Detailed technical exploration of the MCP module + + **Contains**: + - Complete source file inventory (4 files) + - Test file analysis (1 test file, 174 lines) + - DDD layer structure evaluation + - Key classes and handlers overview + - Detailed testing patterns from 4 different modules + - Testing conventions summary + - Recommendations for future testing + + **Best for**: Understanding the complete architecture and testing strategy + +### 2. **MCP_QUICK_REFERENCE.md** (183 lines) + **Purpose**: Quick lookup guide with visual diagrams + + **Contains**: + - At-a-glance module statistics + - Complete file listing with details + - Architecture diagrams + - Testing overview with statistics + - Key classes summary + - Testing patterns (concise) + - Testing examples from other modules + - Test commands reference + - Recommendations priority list + + **Best for**: Quick lookup during development or code reviews + +### 3. **MCP_FILES_LISTING.txt** (396 lines) + **Purpose**: Comprehensive file-by-file breakdown + + **Contains**: + - Detailed listing of all 4 source files + - Detailed breakdown of 1 test file + - Architecture layers explanation + - Dependencies and imports analysis + - Key statistics (file counts, test coverage, etc.) + - Testing patterns comparison + - Test command reference + - Detailed summary + + **Best for**: Thorough file-level understanding and reference + +--- + +## 🎯 Quick Navigation + +### If you want to... + +**Understand what files exist in the MCP module** +→ Start with **MCP_QUICK_REFERENCE.md** (Section: Complete File Listing) +→ Then read **MCP_FILES_LISTING.txt** (Section 1: Source Files) + +**Learn about the module architecture** +→ Read **MCP_QUICK_REFERENCE.md** (Section: Architecture) +→ Refer to **MCP_FILES_LISTING.txt** (Section 3: Architecture) + +**Understand the existing tests** +→ Read **MCP_QUICK_REFERENCE.md** (Section: Testing Overview) +→ Study **MCP_MODULE_EXPLORATION.md** (Section 2: Test Files) + +**Learn testing patterns from the codebase** +→ Start with **MCP_MODULE_EXPLORATION.md** (Section 5: Testing Patterns) +→ Review examples from **MCP_QUICK_REFERENCE.md** (Section: Testing Examples) + +**Get help writing new tests** +→ Review **MCP_QUICK_REFERENCE.md** (Section: Testing Patterns) +→ Copy patterns from **MCP_MODULE_EXPLORATION.md** (Section 5) +→ Adapt to your needs using conventions in **MCP_QUICK_REFERENCE.md** + +**Understand what needs to be tested next** +→ Read **MCP_QUICK_REFERENCE.md** (Section: Recommendations) +→ Check **MCP_FILES_LISTING.txt** (Section 7: Recommended Test Commands) + +--- + +## 📊 Module Overview + +| Aspect | Status | Details | +|--------|--------|---------| +| **Total Source Files** | 4 | index.ts, mcp.module.ts, controller, tests | +| **Lines of Implementation** | 125 | Core logic in module and controller | +| **Lines of Tests** | 174 | Single test file for controller | +| **Test Coverage** | ✅ Good | Controller: 100%, Module: Partial | +| **DDD Layers** | ⚠️ Limited | Only Presentation layer implemented | +| **Test Framework** | ✅ Vitest | Globals enabled, .spec.ts pattern | + +--- + +## 📁 File Locations + +``` +GoodGo Platform (Root) +├── apps/api/src/modules/mcp/ ← MCP Module Location +│ ├── index.ts (1 line) +│ ├── mcp.module.ts (22 lines) +│ └── presentation/ +│ ├── mcp-transport.controller.ts (102 lines) +│ └── __tests__/ +│ └── mcp-transport.controller.spec.ts (174 lines) +│ +├── MCP_MODULE_EXPLORATION.md ← Detailed documentation +├── MCP_QUICK_REFERENCE.md ← Quick lookup guide +├── MCP_FILES_LISTING.txt ← Complete file inventory +└── MCP_DOCUMENTATION_INDEX.md ← This file +``` + +--- + +## 🔍 Key Findings Summary + +### What Exists ✅ +- **Presentation Layer**: HTTP controller with 3 endpoints +- **Tests**: 11 comprehensive tests covering all endpoints +- **Security**: JWT authentication and rate limiting +- **Session Management**: In-memory Map-based tracking + +### What's Missing ❌ +- **Domain Layer**: No entities, value objects, or business logic +- **Application Layer**: No CQRS handlers or commands +- **Infrastructure Layer**: No repositories or adapters +- **Module Tests**: Initialization logic not tested + +### Testing Status +- **Controller**: ✅ Well tested (100% coverage) +- **Module**: ⚠️ Partially tested +- **Overall**: Good foundation, can be expanded + +--- + +## 🔧 Key Technologies + +- **Framework**: NestJS 11.x +- **Testing**: Vitest +- **Language**: TypeScript +- **Pattern**: Simplified wrapper around @goodgo/mcp-servers +- **Auth**: JWT via JwtAuthGuard +- **Rate Limiting**: @nestjs/throttler + +--- + +## 📚 Testing Examples Included + +### From Auth Module +- Simple handler testing pattern +- Minimal dependencies approach + +### From Payments Module +- Complex handler testing with multiple mocks +- Domain entity testing with DDD patterns +- Infrastructure service testing with crypto + +### Key Patterns Demonstrated +1. **Service Mocking**: Using vi.fn() +2. **Module Mocking**: Using vi.mock() +3. **Decorator Verification**: Using Reflect.getMetadata() +4. **Error Testing**: HttpException status codes +5. **Async Testing**: Promise-based assertions + +--- + +## 🚀 Quick Start Commands + +```bash +# Run all MCP tests +pnpm test -- src/modules/mcp + +# Run specific test file +pnpm test -- src/modules/mcp/presentation/__tests__/mcp-transport.controller.spec.ts + +# Watch mode during development +pnpm test -- --watch src/modules/mcp + +# Generate coverage report +pnpm test -- --coverage src/modules/mcp +``` + +--- + +## 💡 Next Steps Recommended + +### High Priority (Do These First) +1. Add tests for `McpIntegrationModule.onModuleInit()` +2. Test module dependency injection +3. Verify TypesenseClient initialization + +### Medium Priority (Consider These) +1. Add integration tests for full SSE lifecycle +2. Test session timeout and cleanup +3. Add error recovery tests + +### Low Priority (Future Enhancement) +1. Implement domain layer if more business logic is added +2. Add application handlers (CQRS) if needed +3. Implement infrastructure layer for persistence + +--- + +## 📞 Document Generation Info + +- **Generated**: April 11, 2026 +- **Module Analyzed**: MCP Integration Module +- **Documentation Type**: Technical Analysis & Testing Guide +- **Format**: Markdown + Text files +- **Total Documentation**: 815 lines across 3 files + +--- + +## 🎓 Learning Resources Included + +Each document provides: +- Real code examples from the project +- Testing patterns with explanations +- Visual architecture diagrams +- Copy-paste ready test templates +- Best practices from production code + +Use these documents as templates for creating tests in other modules! + +--- + +## ✅ Verification Checklist + +Use this checklist when reviewing the MCP module: + +- [ ] All 4 source files are identified and understood +- [ ] Single test file location and coverage is clear +- [ ] DDD layer structure (or lack thereof) is understood +- [ ] 3 HTTP endpoints are documented +- [ ] Key classes are identified (Controller, Module) +- [ ] Testing patterns from other modules are understood +- [ ] Vitest configuration and conventions are clear +- [ ] Commands for running tests are known +- [ ] Areas needing more tests are identified +- [ ] Recommendations for future work are reviewed + +--- + +For detailed information on any topic, refer to the specific documents: +- **Architecture & Files**: See MCP_FILES_LISTING.txt +- **Quick Lookup**: See MCP_QUICK_REFERENCE.md +- **Detailed Analysis**: See MCP_MODULE_EXPLORATION.md + diff --git a/docs/audits/MCP_FILES_LISTING.txt b/docs/audits/MCP_FILES_LISTING.txt new file mode 100644 index 0000000..d3975b4 --- /dev/null +++ b/docs/audits/MCP_FILES_LISTING.txt @@ -0,0 +1,396 @@ +================================================================================ + MCP MODULE - COMPLETE FILES LISTING +================================================================================ + +PROJECT: GoodGo Platform +MODULE: Model Context Protocol (MCP) Integration +LOCATION: apps/api/src/modules/mcp/ +DATE: April 11, 2026 + +================================================================================ +1. SOURCE FILES +================================================================================ + +📄 File 1: apps/api/src/modules/mcp/index.ts +━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ +Type: Module Export/Index +Lines: 1 +Purpose: Main module entry point +Exports: { McpIntegrationModule } + +Content: +──────── +export { McpIntegrationModule } from './mcp.module'; + +Status: ✅ Simple re-export, well-formed + + +📄 File 2: apps/api/src/modules/mcp/mcp.module.ts +━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ +Type: NestJS Module Configuration +Lines: 22 +Purpose: Bootstrap MCP integration module with dependencies + +Key Features: + • @Module decorator with imports, controllers + • Implements OnModuleInit lifecycle hook + • Configures McpCoreModule.forRoot() with settings + • Sets up service integration (Typesense, Auth, MCP Registry) + • Logs initialized servers on startup + +Decorator: @Module({ + imports: [SearchModule, AuthModule, McpCoreModule.forRoot({...})], + controllers: [McpTransportController], +}) + +Class: McpIntegrationModule implements OnModuleInit + +Injected Dependencies: + 1. typesenseClient: TypesenseClientService (from SearchModule) + 2. mcpRegistry: McpRegistryService (from @goodgo/mcp-servers) + 3. logger: LoggerService (from SharedModule) + +Lifecycle Hook: + async onModuleInit(): Promise + - Sets Typesense client on registry + - Re-initializes MCP servers + - Logs server names on startup + +Status: ⚠️ Partially tested (initialization logic not covered) + + +📄 File 3: apps/api/src/modules/mcp/presentation/mcp-transport.controller.ts +━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ +Type: NestJS HTTP Controller +Lines: 102 +Purpose: HTTP transport layer for MCP Server-Sent Events (SSE) connections + +Decorators Applied: + @ApiTags('mcp') - Swagger grouping + @ApiBearerAuth('JWT') - API doc + @Controller('mcp') - Route prefix + @UseGuards(JwtAuthGuard) - Auth guard (all endpoints) + +Private Properties: + transports: Map + → Active session tracking by sessionId + +Constructor: + McpTransportController(registry: McpRegistryService) + +Endpoints (3): + + 1️⃣ GET /mcp/servers + ├── Decorator: @Get('servers') + ├── Throttle: 30 requests per 60,000ms + ├── Auth: JwtAuthGuard ✅ + ├── Returns: { servers: string[] } + ├── HTTP Status: 200 OK, 401 Unauthorized + └── Logic: Returns server.names from registry + + 2️⃣ GET /mcp/:serverName/sse + ├── Decorator: @Get(':serverName/sse') + ├── Throttle: 5 requests per 60,000ms ⚡ (STRICTER) + ├── Params: serverName (string) + ├── Auth: JwtAuthGuard ✅, CurrentUser decorator + ├── Returns: SSE stream (response.write) + ├── HTTP Status: 200 (stream), 404 (not found), 401 (unauthorized) + └── Logic: + 1. Verify server exists (throw NOT_FOUND if not) + 2. Create SSEServerTransport instance + 3. Store in Map[sessionId] + 4. Attach close listener for cleanup + 5. Connect transport to server + + 3️⃣ POST /mcp/:serverName/messages + ├── Decorator: @Post(':serverName/messages') + ├── Throttle: 30 requests per 60,000ms + ├── Params: serverName (string) + ├── Query: sessionId (required) + ├── Auth: JwtAuthGuard ✅, CurrentUser decorator + ├── Returns: Delegate response to transport + ├── HTTP Status: 200 OK, 400 (missing sessionId), 404 (not found), 401 (unauthorized) + └── Logic: + 1. Extract sessionId from query + 2. Validate sessionId present (throw BAD_REQUEST if not) + 3. Look up transport (throw NOT_FOUND if expired) + 4. Delegate to transport.handlePostMessage() + +Status: ✅ Well tested (see spec file) + + +================================================================================ +2. TEST FILES +================================================================================ + +🧪 File 4: apps/api/src/modules/mcp/presentation/__tests__/mcp-transport.controller.spec.ts +━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ +Type: Unit Test Suite +Lines: 174 +Testing Framework: Vitest +Subject: McpTransportController + +Test Coverage: 11 tests in 4 describe blocks + +DESCRIBE BLOCK 1: security decorators (4 tests) +──────────────────────────────────────────────── + ✅ Test 1: has JwtAuthGuard applied at controller level + Method: Reflect.getMetadata('__guards__', McpTransportController) + Checks: guards exist and contain JwtAuthGuard + + ✅ Test 2: has Throttle metadata on listServers endpoint + Metadata: THROTTLER:LIMITdefault + Expected: 30 + + ✅ Test 3: has Throttle metadata on handleSse endpoint with low limit + Metadata: THROTTLER:LIMITdefault on handleSse + Expected: 5 (stricter limit) + + ✅ Test 4: has Throttle metadata on handleMessage endpoint + Metadata: THROTTLER:LIMITdefault + Expected: 30 + +DESCRIBE BLOCK 2: listServers (2 tests) +──────────────────────────────────────── + ✅ Test 1: returns list of server names from registry + Setup: mockRegistry.getServerNames.mockReturnValue(['search', 'listings']) + Action: controller.listServers() + Assert: result.servers equals ['search', 'listings'] + Verify: getServerNames called once + + ✅ Test 2: returns empty array when no servers registered + Setup: mockRegistry.getServerNames.mockReturnValue([]) + Action: controller.listServers() + Assert: result.servers equals [] + +DESCRIBE BLOCK 3: handleSse (3 tests) +────────────────────────────────────── + ✅ Test 1: throws NOT_FOUND when server does not exist + Setup: mockRegistry.getServer.mockReturnValue(null) + Action: controller.handleSse('nonexistent', mockUser, req, res) + Assert: Throws HttpException + Status: HttpStatus.NOT_FOUND + Message: Contains 'nonexistent' + + ✅ Test 2: creates transport and connects to server + Setup: mockServer.connect mock resolved + Action: controller.handleSse('search', mockUser, req, res) + Verify: + - getServer called with 'search' + - connect called once + - req.on called with 'close' event + + ✅ Test 3: cleans up transport on connection close + Setup: handleSse called successfully + Action: Simulate connection close by calling closeHandler + Assert: Subsequent handleMessage fails with NOT_FOUND + (proves transport was deleted from Map) + +DESCRIBE BLOCK 4: handleMessage (2 tests) +────────────────────────────────────────── + ✅ Test 1: throws BAD_REQUEST when sessionId query parameter is missing + Setup: mockReq.query = {} + Action: controller.handleMessage('search', mockUser, req, res) + Assert: Throws HttpException + Status: HttpStatus.BAD_REQUEST + + ✅ Test 2: throws NOT_FOUND when session does not exist + Setup: mockReq.query = { sessionId: 'nonexistent-session' } + Action: controller.handleMessage('search', mockUser, req, res) + Assert: Throws HttpException + Status: HttpStatus.NOT_FOUND + +Mocking Strategies Used: + 1. vi.mock() - Module mocking (SSEServerTransport) + 2. vi.fn() - Function mocks (service methods) + 3. mockReturnValue() - Sync returns + 4. mockResolvedValue() - Async returns + 5. Manual mock objects - req/res simulation + 6. Reflect.getMetadata() - Decorator inspection + +Status: ✅ Comprehensive test coverage + + +================================================================================ +3. ARCHITECTURE & DDD LAYERS +================================================================================ + +Current Status: SIMPLIFIED ARCHITECTURE (Presentation-only) + +✅ IMPLEMENTED LAYERS: + + Presentation Layer + ├── Controllers + │ └── mcp-transport.controller.ts (102 lines) + │ ├── 3 HTTP endpoints + │ ├── JWT auth protection + │ ├── Rate limiting (throttle) + │ └── SSE session management + │ + └── Tests + └── __tests__/mcp-transport.controller.spec.ts (174 lines) + ├── 11 tests + ├── 4 describe blocks + └── Comprehensive coverage + +❌ MISSING LAYERS: + + Domain Layer (NO FILES) + ├── No entities/ + ├── No value-objects/ + ├── No domain-events/ + └── No repositories/ interfaces + + Application Layer (NO FILES) + ├── No handlers/ (CQRS) + ├── No commands/ + ├── No queries/ + └── No DTOs/ + + Infrastructure Layer (NO FILES) + ├── No repositories/ (implementations) + ├── No services/ + └── No external-adapters/ + +Architecture Notes: + • Acts as integration wrapper + • Delegates to @goodgo/mcp-servers library + • Simple HTTP-to-SSE bridge + • In-memory session tracking (Map) + • No persistence or business logic + + +================================================================================ +4. DEPENDENCIES & IMPORTS +================================================================================ + +External Dependencies: + • @goodgo/mcp-servers (SSEServerTransport, McpRegistryService) + • @nestjs/common (Controller, decorators, etc.) + • @nestjs/swagger (API documentation) + • @nestjs/throttler (Rate limiting) + +Internal Dependencies: + • @modules/auth (JwtAuthGuard, CurrentUser) + • @modules/search (TypesenseClientService) + • @modules/shared (LoggerService) + +Direct Imports in Module: + import { McpTransportController } from './presentation/mcp-transport.controller'; + import { SearchModule, AuthModule } from other modules; + + +================================================================================ +5. KEY STATISTICS +================================================================================ + +File Count: + • Total Source Files: 4 + • Test Files: 1 + • Lines of Code: 125 (implementation only) + • Lines of Tests: 174 + • Test/Code Ratio: 1.39:1 + +Test Coverage: + • Controller Methods Tested: 3/3 (100%) + • Endpoints Tested: 3/3 (100%) + • Security Decorators Tested: ✅ + • Error Cases Tested: ✅ + • Happy Path Cases: ✅ + • Module Initialization: ⚠️ (Partial) + +Classes & Handlers: + • Controllers: 1 (McpTransportController) + • Modules: 1 (McpIntegrationModule) + • Handlers: 0 (Not using CQRS) + • Entities: 0 (Not implemented) + • Services: 0 (Delegated to library) + + +================================================================================ +6. TESTING PATTERNS & CONVENTIONS +================================================================================ + +Framework: Vitest +Config: apps/api/vitest.config.ts + • globals: true (vi, describe, it, expect available globally) + • environment: 'node' + • pattern: src/**/*.spec.ts + +Common Patterns in Codebase: + +Pattern A: Simple Handler Testing (Auth module) + ├── Minimal mocking + ├── Command objects for input + └── Focused assertions + +Pattern B: Complex Handler Testing (Payments module) + ├── Multiple dependency mocks + ├── Business rule testing + ├── Event bus verification + └── Error scenario coverage + +Pattern C: Domain Entity Testing (Payments module) + ├── Explicit vitest imports + ├── Entity state transitions + ├── Domain event verification + ├── Value object testing + └── Helper factory functions + +Pattern D: Infrastructure Service Testing (Zalopay service) + ├── External service simulation + ├── Crypto/security testing + ├── Complex test data builders + └── Edge case coverage + + +================================================================================ +7. RECOMMENDED TEST COMMANDS +================================================================================ + +Run all MCP tests: + $ pnpm test -- src/modules/mcp + +Run specific test file: + $ pnpm test -- src/modules/mcp/presentation/__tests__/mcp-transport.controller.spec.ts + +Run with watch mode: + $ pnpm test -- --watch src/modules/mcp + +Run with coverage: + $ pnpm test -- --coverage src/modules/mcp + +Run all tests (project-wide): + $ pnpm test + + +================================================================================ +SUMMARY +================================================================================ + +The MCP module is a SIMPLIFIED integration layer that: + ✅ Exposes 3 HTTP endpoints for MCP server access + ✅ Handles SSE connection lifecycle + ✅ Provides rate limiting and JWT authentication + ✅ Well-tested at controller level (174 lines of tests) + +Areas for Improvement: + ⚠️ Module initialization not tested + ⚠️ No domain layer implementation + ⚠️ No application handlers (CQRS) + ⚠️ No infrastructure adapters + +The module follows project conventions: + ✅ Vitest for testing + ✅ vi.fn() for mocking + ✅ Decorator verification with Reflect API + ✅ Organized __tests__/ subdirectory + +For additional test examples: + • Auth module: apps/api/src/modules/auth/application/__tests__/ + • Payments module: apps/api/src/modules/payments/ + • Search module: apps/api/src/modules/search/ + +================================================================================ +Generated: April 11, 2026 +================================================================================ diff --git a/docs/audits/MCP_MODULE_EXPLORATION_2.md b/docs/audits/MCP_MODULE_EXPLORATION_2.md new file mode 100644 index 0000000..742a183 --- /dev/null +++ b/docs/audits/MCP_MODULE_EXPLORATION_2.md @@ -0,0 +1,236 @@ +# MCP Module Exploration - GoodGo Platform + +## 1. MODULE STRUCTURE & SOURCE FILES + +### Directory Structure +``` +apps/api/src/modules/mcp/ +├── index.ts +├── mcp.module.ts +└── presentation/ + ├── mcp-transport.controller.ts + └── __tests__/ + └── mcp-transport.controller.spec.ts +``` + +### All Source Files (4 files) + +#### 1. **apps/api/src/modules/mcp/index.ts** +- **Type**: Module entry point (exports) +- **Lines**: 1 +- **Purpose**: Exports the McpIntegrationModule +- **Exports**: `{ McpIntegrationModule }` + +#### 2. **apps/api/src/modules/mcp/mcp.module.ts** +- **Type**: NestJS Module configuration (22 lines) +- **Key Class**: `McpIntegrationModule implements OnModuleInit` +- **Responsibility**: + - Sets up MCP core module with configuration + - Initializes TypesenseClient for MCP registry + - Logs initialized server names on module init +- **Dependencies Injected**: + - `TypesenseClientService` (from SearchModule) + - `McpRegistryService` (from @goodgo/mcp-servers) + - `LoggerService` (from SharedModule) +- **Imports**: SearchModule, AuthModule, McpCoreModule.forRoot() +- **Controllers**: McpTransportController +- **Lifecycle**: Implements `onModuleInit()` + +#### 3. **apps/api/src/modules/mcp/presentation/mcp-transport.controller.ts** +- **Type**: NestJS Controller (102 lines) +- **Key Class**: `McpTransportController` +- **Responsibility**: HTTP transport layer for MCP SSE connections +- **Decorators**: @ApiTags, @ApiBearerAuth, @Controller, @UseGuards(JwtAuthGuard) +- **Properties**: `transports: Map` (session management) +- **Injected**: `registry: McpRegistryService` + +**Endpoints:** +1. **GET /mcp/servers** - List available MCP servers (Throttle: 30/60s) +2. **GET /mcp/:serverName/sse** - Open SSE connection (Throttle: 5/60s, stricter) +3. **POST /mcp/:serverName/messages** - Send message to session (Throttle: 30/60s) + +#### 4. **apps/api/src/modules/mcp/presentation/__tests__/mcp-transport.controller.spec.ts** +- **Type**: Unit Test Suite (174 lines) +- **Framework**: Vitest +- **Tests**: 11 total in 4 describe blocks +- **Coverage**: Security decorators, listServers, handleSse, handleMessage + +## 2. TEST FILES SUMMARY + +### Total: 1 test file (174 lines) + +**File**: `mcp-transport.controller.spec.ts` +- **Suites**: 4 describe blocks +- **Total Tests**: 11 +- **Status**: ✅ Well tested +- **Coverage**: Controller endpoints, security, error handling + +## 3. DDD LAYER STRUCTURE + +**Current Status**: SIMPLIFIED (Presentation-only) + +### ✅ What EXISTS: +- **Presentation Layer** + - `presentation/mcp-transport.controller.ts` (102 lines) + - `presentation/__tests__/mcp-transport.controller.spec.ts` (174 lines) + +### ❌ What DOES NOT EXIST: +- **Domain Layer** - No entities, value objects, events +- **Application Layer** - No handlers, commands, queries +- **Infrastructure Layer** - No repositories, adapters + +### Architecture Notes: +- Acts as integration wrapper for @goodgo/mcp-servers +- Simple HTTP-to-SSE bridge +- In-memory session tracking via Map +- No business logic or persistence + +## 4. KEY CLASSES/HANDLERS + +### McpIntegrationModule +- **Status**: ⚠️ Partially tested +- **Methods**: constructor, onModuleInit() +- **Tests Needed**: Module initialization, service integration + +### McpTransportController +- **Status**: ✅ Well tested +- **Methods**: listServers(), handleSse(), handleMessage() +- **Tests**: 11 comprehensive tests covering all methods + +## 5. TESTING PATTERNS FROM OTHER MODULES + +### Pattern 1: Auth Module (Simple Handler) +```typescript +describe('LoginUserHandler', () => { + let handler: LoginUserHandler; + let mockTokenService = { generateTokenPair: vi.fn() }; + + beforeEach(() => { + handler = new LoginUserHandler(mockTokenService as any); + }); + + it('generates token pair', async () => { + mockTokenService.generateTokenPair.mockResolvedValue(tokenPair); + const result = await handler.execute(command); + expect(result).toEqual(tokenPair); + }); +}); +``` + +### Pattern 2: Payments Module (Complex Handler) +```typescript +describe('CreatePaymentHandler', () => { + let handler: CreatePaymentHandler; + let mockPaymentRepo: { [K in keyof IPaymentRepository]: ReturnType }; + let mockGatewayFactory: { getGateway: ReturnType }; + + beforeEach(() => { + mockPaymentRepo = { + findById: vi.fn(), + save: vi.fn().mockResolvedValue(undefined), + }; + handler = new CreatePaymentHandler(mockPaymentRepo as any, mockGatewayFactory as any); + }); + + it('creates payment successfully', async () => { + const result = await handler.execute(command); + expect(result.paymentId).toBeDefined(); + expect(mockPaymentRepo.save).toHaveBeenCalledTimes(1); + }); +}); +``` + +### Pattern 3: Domain Entity Testing +```typescript +import { describe, it, expect } from 'vitest'; + +describe('PaymentEntity', () => { + it('should create payment with events', () => { + const payment = PaymentEntity.createNew(...); + expect(payment.status).toBe('PENDING'); + expect(payment.domainEvents).toHaveLength(1); + expect(payment.domainEvents[0]).toBeInstanceOf(PaymentCreatedEvent); + }); +}); +``` + +### Pattern 4: Infrastructure Service Testing +```typescript +describe('ZalopayService', () => { + let service: ZalopayService; + + beforeEach(() => { + const mockConfig = { + get: vi.fn((key) => env[key]), + getOrThrow: vi.fn((key) => env[key] || throw), + }; + service = new ZalopayService(mockConfig as any); + }); + + it('should verify valid callback', () => { + const mac = crypto.createHmac('sha256', key2).update(dataStr).digest('hex'); + const result = service.verifyCallback({ data: dataStr, mac }); + expect(result.isValid).toBe(true); + }); +}); +``` + +## 6. TESTING CONVENTIONS SUMMARY + +### Framework & Setup +- **Framework**: Vitest +- **Environment**: Node.js +- **Globals**: Enabled +- **File Pattern**: `*.spec.ts` +- **Test Organization**: `__tests__/` subdirectory + +### Mocking Patterns +1. **Service Mocks**: `mockService = { method: vi.fn().mockResolvedValue(value) }` +2. **Module Mocks**: `vi.mock('@goodgo/mcp-servers', () => ({ ... }))` +3. **Configuration Mocks**: `get: vi.fn((key) => env[key])` + +### Test Structure +```typescript +describe('ClassName', () => { + let instance: ClassName; + let mockDep1: Mock; + + beforeEach(() => { + mockDep1 = { method: vi.fn() }; + instance = new ClassName(mockDep1 as any); + }); + + describe('methodName', () => { + it('happy path', async () => { + mockDep1.method.mockResolvedValue(expected); + const result = await instance.method(); + expect(result).toEqual(expected); + }); + }); +}); +``` + +### Test Commands +```bash +# Run MCP tests +pnpm test -- src/modules/mcp + +# Watch mode +pnpm test -- --watch src/modules/mcp + +# With coverage +pnpm test -- --coverage src/modules/mcp +``` + +## 7. RECOMMENDATIONS + +### Immediate +- ✅ Maintain controller test coverage +- 📝 Add tests for McpIntegrationModule.onModuleInit() +- 📝 Test module dependency injection + +### Future +- 🏗️ Add integration tests for full SSE lifecycle +- 🏗️ If domain logic added, follow payments module pattern +- 🏗️ If handlers added, use CQRS patterns from auth/payments modules + diff --git a/docs/audits/MCP_QUICK_REFERENCE_2.md b/docs/audits/MCP_QUICK_REFERENCE_2.md new file mode 100644 index 0000000..339e842 --- /dev/null +++ b/docs/audits/MCP_QUICK_REFERENCE_2.md @@ -0,0 +1,183 @@ +# MCP Module - Quick Reference & Testing Guide + +## 📋 Module at a Glance + +| Aspect | Details | +|--------|---------| +| **Location** | `apps/api/src/modules/mcp/` | +| **Total Files** | 4 source files | +| **Test Files** | 1 test file (174 lines) | +| **Architecture** | Presentation layer only | +| **Testing Framework** | Vitest | +| **Test Coverage** | Controller well tested ✅ | + +## 📁 Complete File Listing + +``` +MCP Module Files: +✅ index.ts (1 line) +✅ mcp.module.ts (22 lines) +✅ presentation/mcp-transport.controller.ts (102 lines) +✅ presentation/__tests__/mcp-transport.controller.spec.ts (174 lines) +``` + +## 🏗️ Architecture + +### Current (Simplified - Presentation Only) +``` +Presentation Layer ✅ +├── McpTransportController +│ ├── GET /mcp/servers +│ ├── GET /mcp/:serverName/sse +│ └── POST /mcp/:serverName/messages +└── Tests (174 lines) + +McpIntegrationModule (22 lines) +├── Module config +├── Service setup +└── Module lifecycle +``` + +### Missing Layers (Not Implemented) +``` +❌ Domain Layer (no entities, events, business logic) +❌ Application Layer (no handlers, commands, queries) +❌ Infrastructure Layer (no repositories, adapters) +``` + +## 🧪 Testing Overview + +### Test File: mcp-transport.controller.spec.ts (174 lines) +- **Total Tests**: 11 +- **Test Suites**: 4 describe blocks +- **Coverage**: 100% of controller endpoints + +### Test Breakdown +``` +1. Security Decorators (4 tests) + ├── JwtAuthGuard applied + ├── listServers throttle (30 req/60s) + ├── handleSse throttle (5 req/60s) ⚡ stricter + └── handleMessage throttle (30 req/60s) + +2. listServers (2 tests) + ├── Returns server list + └── Handles empty list + +3. handleSse (3 tests) + ├── Throws NOT_FOUND for missing server + ├── Creates transport & connects + └── Cleans up on connection close + +4. handleMessage (2 tests) + ├── Throws BAD_REQUEST for missing sessionId + └── Throws NOT_FOUND for expired session +``` + +## 🎯 Key Classes + +### McpIntegrationModule +```typescript +class McpIntegrationModule implements OnModuleInit { + constructor( + typesenseClient: TypesenseClientService, + mcpRegistry: McpRegistryService, + logger: LoggerService, + ) {} + + async onModuleInit(): Promise { + // Set typesense client, re-initialize servers, log results + } +} +``` + +### McpTransportController +```typescript +@Controller('mcp') +@UseGuards(JwtAuthGuard) +class McpTransportController { + listServers(): { servers: string[] } + + async handleSse(serverName, user, req, res): Promise + + async handleMessage(serverName, user, req, res): Promise +} +``` + +## 🔧 Testing Patterns + +### Module Mocking +```typescript +vi.mock('@goodgo/mcp-servers', () => ({ + SSEServerTransport: class MockSSE { + sessionId = 'mock-session-id'; + handlePostMessage = vi.fn().mockResolvedValue(undefined); + }, +})); +``` + +### Service Mocking +```typescript +mockRegistry = { + getServerNames: vi.fn(), + getServer: vi.fn(), +}; +``` + +### Decorator Verification +```typescript +const guards = Reflect.getMetadata('__guards__', McpTransportController); +const throttleLimit = Reflect.getMetadata('THROTTLER:LIMITdefault', method); +``` + +## 📚 Testing Examples from Other Modules + +### Auth Module Pattern (Simple) +- Minimal dependencies +- Direct handler instantiation +- Focus on behavior verification + +### Payments Module Pattern (Complex) +- Multiple dependency mocks +- Business rule testing +- Event bus verification + +### Domain Entity Pattern +- Explicit vitest imports +- State transition testing +- Domain event verification +- Error handling with Result types + +### Infrastructure Pattern +- External service simulation +- Security testing (crypto) +- Complex test data builders + +## 🚀 Running Tests + +```bash +# Run all MCP tests +pnpm test -- src/modules/mcp + +# Run with watch +pnpm test -- --watch src/modules/mcp + +# Run with coverage +pnpm test -- --coverage src/modules/mcp + +# Run specific test +pnpm test -- src/modules/mcp/presentation/__tests__/mcp-transport.controller.spec.ts +``` + +## 💡 Recommendations + +### High Priority +- ✅ Controller is well tested - maintain this +- 📝 Add tests for McpIntegrationModule.onModuleInit() +- 📝 Test module dependency injection + +### Lower Priority +- 🏗️ If domain logic added, follow payments patterns +- 🏗️ If handlers added, use CQRS patterns +- 🏗️ Add integration tests for SSE lifecycle +