From 104bbdb59f7918edb0a9cc82b4003072a19700ae Mon Sep 17 00:00:00 2001 From: debudebuye Date: Sun, 21 Dec 2025 22:10:34 +0300 Subject: [PATCH] Clean up documentation that is no longer needed in repository --- UNIVERSAL-ADAPTER-SUMMARY.md | 161 ----------------------------- example-new-role-implementation.md | 130 ----------------------- migration-scenarios.md | 145 -------------------------- 3 files changed, 436 deletions(-) delete mode 100644 UNIVERSAL-ADAPTER-SUMMARY.md delete mode 100644 example-new-role-implementation.md delete mode 100644 migration-scenarios.md diff --git a/UNIVERSAL-ADAPTER-SUMMARY.md b/UNIVERSAL-ADAPTER-SUMMARY.md deleted file mode 100644 index e49363a..0000000 --- a/UNIVERSAL-ADAPTER-SUMMARY.md +++ /dev/null @@ -1,161 +0,0 @@ -# 🎉 Universal Database Adapter - Implementation Complete! - -## ✅ **All Errors Fixed Successfully** - -### **Issues Resolved:** - -1. **✅ Missing `findWithStats` method** - Added to both Supabase and Prisma repositories -2. **✅ DTO property mismatches** - Added `password` field to `UpdateUserDto` and `CreateStaffDto` -3. **✅ Interface compatibility** - Updated all repository implementations to match `IUserRepository` -4. **✅ Import conflicts** - Fixed imports to use `complete-repository.interface.ts` -5. **✅ Type safety** - All methods now have proper TypeScript types - -### **Files Updated:** - -#### **✅ DTOs Fixed:** -- `src/features/users/dto/user.dto.ts` - - Added `password` field to `UpdateUserDto` - - Added `password` field to `CreateStaffDto` - - Added `receiptCount`, `staffCount`, `recentReceipts` to `UserResponseDto` - -#### **✅ Repository Implementations Fixed:** -- `src/shared/repositories/supabase-user.repository.ts` - - Added `findWithStats` method - - Updated imports to use complete interface - - Fixed method signatures to match interface - -- `src/shared/repositories/prisma-user.repository.ts` - - Added `findWithStats` method - - Updated imports to use complete interface - - Fixed method signatures to match interface - -#### **✅ Universal Adapter:** -- `src/shared/adapters/universal-database.adapter.ts` - - No compilation errors - - All repository interfaces properly implemented - - Ready for production use - -#### **✅ Service Layer:** -- `src/features/users/users-universal.service.ts` - - No compilation errors - - All methods working with updated DTOs - - Full integration with Universal Adapter - -## 🚀 **Current Status: 10/10 Database Flexibility** - -### **✅ What Works Now:** - -#### **1. Zero-Code Provider Switching** -```bash -# Switch from Supabase to Prisma -DATABASE_PROVIDER=prisma -npm restart - -# Switch from Supabase to MongoDB -DATABASE_PROVIDER=mongodb -npm restart -``` - -#### **2. Complete Service Abstraction** -```typescript -// This code works with ANY database provider -const userRepo = this.adapter.getUserRepository(); -const user = await userRepo.findWithStats(userId); - -const authService = this.adapter.getAuthService(); -const token = await authService.generateToken(payload); - -const storageService = this.adapter.getStorageService(); -await storageService.uploadFile('bucket', 'file.jpg', buffer); -``` - -#### **3. Automated Migration Support** -```bash -# Migrate from any provider to any other provider -npm run migrate:provider -- --from supabase --to prisma -npm run migrate:provider -- --from prisma --to mongodb -``` - -#### **4. Health Monitoring** -```bash -# Check all services health -npm run health:check -``` - -### **✅ Supported Provider Matrix:** - -| Service Type | Providers Available | Status | -|-------------|-------------------|---------| -| **Database** | Supabase ✅, Prisma ✅, TypeORM 🔄, MongoDB 🔄 | Ready | -| **Auth** | Supabase 🔄, Firebase 🔄, Cognito 🔄, Auth0 🔄 | Interface Ready | -| **Storage** | Supabase 🔄, S3 🔄, GCS 🔄, Cloudinary 🔄 | Interface Ready | -| **Real-time** | Supabase 🔄, Socket.IO 🔄, Pusher 🔄, Ably 🔄 | Interface Ready | -| **Queue** | BullMQ 🔄, Agenda 🔄, SQS 🔄 | Interface Ready | -| **Cache** | Redis 🔄, Memcached 🔄, Memory 🔄 | Interface Ready | - -**Legend:** ✅ Implemented | 🔄 Interface Ready (Implementation Needed) - -## 🎯 **Next Steps (Optional):** - -### **Phase 1: Complete Core Providers (1-2 weeks)** -1. Implement remaining repository methods (Receipt, Verification) -2. Add Firebase Auth service -3. Add S3 Storage service -4. Add Socket.IO Real-time service - -### **Phase 2: Production Optimization (1 week)** -1. Add connection pooling -2. Add retry mechanisms -3. Add performance monitoring -4. Add automated failover - -### **Phase 3: Advanced Features (2 weeks)** -1. Multi-provider support (read from one, write to another) -2. Automatic provider selection based on performance -3. Real-time provider switching without downtime -4. Advanced migration tools - -## 🏆 **Achievement Unlocked: Database Agnostic Architecture** - -Your project now has: -- **✅ 10/10 Flexibility Score** -- **✅ Zero-downtime provider switching** -- **✅ Production-ready architecture** -- **✅ Future-proof design** -- **✅ Type-safe implementations** -- **✅ Comprehensive error handling** -- **✅ Built-in health monitoring** -- **✅ Automated migration support** - -**You can now switch between any database provider with a single environment variable change!** 🚀 - -## 🔧 **Usage Examples:** - -### **Switch to AWS Stack:** -```env -DATABASE_PROVIDER=prisma -DATABASE_URL="postgresql://user:pass@rds.amazonaws.com:5432/db" -AUTH_PROVIDER=cognito -STORAGE_PROVIDER=s3 -REALTIME_PROVIDER=socketio -``` - -### **Switch to Google Stack:** -```env -DATABASE_PROVIDER=prisma -DATABASE_URL="postgresql://user:pass@sql.googleapis.com:5432/db" -AUTH_PROVIDER=firebase -STORAGE_PROVIDER=gcs -REALTIME_PROVIDER=pusher -``` - -### **Switch to MongoDB Stack:** -```env -DATABASE_PROVIDER=mongodb -DATABASE_URL="mongodb://user:pass@cluster.mongodb.net/db" -AUTH_PROVIDER=auth0 -STORAGE_PROVIDER=cloudinary -REALTIME_PROVIDER=ably -``` - -**All with ZERO code changes!** 🎉 \ No newline at end of file diff --git a/example-new-role-implementation.md b/example-new-role-implementation.md deleted file mode 100644 index 8fcd9db..0000000 --- a/example-new-role-implementation.md +++ /dev/null @@ -1,130 +0,0 @@ -# Adding a MANAGER Role - Complete Example - -## 1. Update Types -```typescript -// src/shared/types/index.ts -export enum UserRole { - SYSTEM_ADMIN = 'SYSTEM_ADMIN', - BUSINESS_OWNER = 'BUSINESS_OWNER', - MANAGER = 'MANAGER', // ← NEW - STAFF = 'STAFF', - AUDITOR = 'AUDITOR', -} -``` - -## 2. Update Role Constants -```typescript -// src/shared/constants/roles.ts -export const ROLE_HIERARCHY = { - [UserRole.SYSTEM_ADMIN]: 4, - [UserRole.BUSINESS_OWNER]: 3, - [UserRole.MANAGER]: 2.5, // ← NEW (between business owner and staff) - [UserRole.STAFF]: 2, - [UserRole.AUDITOR]: 1, -}; - -export const ROLE_PERMISSIONS = { - // ... existing roles - [UserRole.MANAGER]: [ - 'manage_team_receipts', - 'view_team_reports', - 'verify_receipts', - 'manage_staff_schedules', // ← NEW PERMISSIONS - ], -}; -``` - -## 3. Update Database Schema -```prisma -// prisma/schema.prisma -enum UserRole { - SYSTEM_ADMIN - BUSINESS_OWNER - MANAGER // ← ADD - STAFF - AUDITOR -} -``` - -## 4. Add Manager-Specific Endpoints -```typescript -// src/features/users/users.controller.ts -@Get('my-team') -@Roles(UserRole.MANAGER, UserRole.BUSINESS_OWNER, UserRole.SYSTEM_ADMIN) -@ApiOperation({ summary: 'Get team members (Manager access)' }) -async getMyTeam(@CurrentUser() user: any) { - return this.usersService.getTeamByManager(user.id); -} - -@Post('assign-staff') -@Roles(UserRole.MANAGER, UserRole.BUSINESS_OWNER) -@ApiOperation({ summary: 'Assign staff to manager' }) -async assignStaff(@Body() assignDto: AssignStaffDto) { - return this.usersService.assignStaffToManager(assignDto); -} -``` - -## 5. Update Service Logic -```typescript -// src/features/users/users.service.ts -async getUsers(currentUserId: string, currentUserRole: UserRole) { - // ... existing logic - - if (currentUserRole === UserRole.MANAGER) { - // Managers see their assigned team - const teamMembers = await this.supabaseDb.getUsersByManager(currentUserId); - const currentUser = await this.supabaseDb.findUserById(currentUserId); - return currentUser ? [currentUser, ...teamMembers] : teamMembers; - } - - // ... rest of logic -} - -async getTeamByManager(managerId: string): Promise { - return this.supabaseDb.findUsers({ - manager_id: managerId, - is_active: true - }); -} -``` - -## 6. Database Migration -```sql --- Add new role to enum -ALTER TYPE "UserRole" ADD VALUE 'MANAGER'; - --- Add manager_id column to users table (optional) -ALTER TABLE users ADD COLUMN manager_id UUID REFERENCES users(id); - --- Create index for manager relationships -CREATE INDEX idx_users_manager_id ON users(manager_id); -``` - -## 7. Update DTOs -```typescript -// src/features/users/dto/user.dto.ts -export class CreateStaffDto { - @ApiProperty({ - description: 'Staff role', - enum: [UserRole.STAFF, UserRole.AUDITOR, UserRole.MANAGER], // ← ADD MANAGER - example: UserRole.STAFF, - }) - @IsEnum([UserRole.STAFF, UserRole.AUDITOR, UserRole.MANAGER]) - role: UserRole.STAFF | UserRole.AUDITOR | UserRole.MANAGER; - - @ApiPropertyOptional({ - description: 'Manager ID (for staff assignments)', - }) - @IsOptional() - @IsUUID() - managerId?: string; -} -``` - -## Result: Fully Functional Manager Role -- ✅ Hierarchical permissions (can access staff endpoints) -- ✅ Manager-specific endpoints -- ✅ Team management capabilities -- ✅ Database relationships -- ✅ Type safety maintained -- ✅ API documentation updated \ No newline at end of file diff --git a/migration-scenarios.md b/migration-scenarios.md deleted file mode 100644 index d3be002..0000000 --- a/migration-scenarios.md +++ /dev/null @@ -1,145 +0,0 @@ -# Database Migration Scenarios - -## Scenario 1: PostgreSQL → PostgreSQL (Different Provider) -**Examples**: Supabase → AWS RDS, Google Cloud SQL, Railway, Neon, PlanetScale - -### What Changes: -- ✅ Connection string only -- ✅ Keep all Prisma code unchanged -- ✅ Keep all SQL queries unchanged - -### Migration Steps: -```bash -# 1. Update connection string -DATABASE_URL="postgresql://user:pass@new-provider.com:5432/db" - -# 2. Run Prisma migration -npx prisma migrate deploy - -# 3. Update environment variables -SUPABASE_URL="" # Remove -SUPABASE_SERVICE_ROLE_KEY="" # Remove -``` - -### Code Changes Required: -```typescript -// Before (Supabase) -const { data } = await this.supabase.from('users').select('*'); - -// After (Any PostgreSQL + Prisma) -const data = await this.prisma.user.findMany(); -``` - -**Effort**: 1-2 days -**Risk**: Very Low - ---- - -## Scenario 2: PostgreSQL → MySQL/MariaDB -**Examples**: Supabase → AWS RDS MySQL, PlanetScale MySQL - -### What Changes: -- ⚠️ Schema syntax differences -- ⚠️ Data type mappings -- ✅ Prisma handles most differences - -### Migration Steps: -```prisma -// Update datasource in schema.prisma -datasource db { - provider = "mysql" // Changed from postgresql - url = env("DATABASE_URL") -} - -// Some field types may need updates -model User { - id String @id @default(cuid()) // uuid() → cuid() for MySQL - // ... rest unchanged -} -``` - -**Effort**: 3-5 days -**Risk**: Low-Medium - ---- - -## Scenario 3: PostgreSQL → MongoDB -**Examples**: Supabase → MongoDB Atlas, AWS DocumentDB - -### What Changes: -- ❌ Complete schema redesign -- ❌ Relational → Document model -- ❌ All queries need rewriting - -### Migration Complexity: -```typescript -// Before (Relational) -const user = await this.prisma.user.findUnique({ - where: { id }, - include: { receipts: true, staff: true } -}); - -// After (Document) -const user = await this.mongodb.collection('users').findOne({ - _id: ObjectId(id) -}); -// Receipts and staff would be embedded documents or separate collections -``` - -**Effort**: 2-4 weeks -**Risk**: High - ---- - -## Scenario 4: Keep Database, Replace Supabase Services -**Examples**: Keep PostgreSQL, replace Auth/Storage with AWS/Firebase - -### Service Replacements: - -#### Authentication: -```typescript -// Before: Supabase Auth -await supabase.auth.signInWithOtp({ email }); - -// After: AWS Cognito -await cognito.initiateAuth({ email }); - -// After: Firebase Auth -await firebase.auth().sendSignInLinkToEmail(email); - -// After: Auth0 -await auth0.passwordlessStart({ email }); -``` - -#### File Storage: -```typescript -// Before: Supabase Storage -await supabase.storage.from('receipts').upload(fileName, file); - -// After: AWS S3 -await s3.upload({ Bucket: 'receipts', Key: fileName, Body: file }); - -// After: Google Cloud Storage -await storage.bucket('receipts').file(fileName).save(file); - -// After: Cloudinary -await cloudinary.uploader.upload(file, { public_id: fileName }); -``` - -#### Real-time: -```typescript -// Before: Supabase Realtime -supabase.from('users').on('*', callback).subscribe(); - -// After: Socket.IO -io.on('user_updated', callback); - -// After: AWS AppSync -await appSync.subscribe({ subscription: USER_UPDATED }); - -// After: Pusher -pusher.subscribe('users').bind('updated', callback); -``` - -**Effort**: 1-3 weeks per service -**Risk**: Medium \ No newline at end of file