Assist_Design/apps/portal/ARCHITECTURE.md
T. Narantuya a95ec60859 Refactor address management and update related services for improved clarity and functionality
- Updated address retrieval in user service to replace billing info with a dedicated address method.
- Adjusted API endpoints to use `PATCH /api/me/address` for address updates instead of billing updates.
- Enhanced documentation to reflect changes in address management processes and API usage.
- Removed deprecated types and services related to billing address handling, streamlining the codebase.
2025-09-17 18:43:43 +09:00

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# Portal Architecture
This document outlines the new feature-driven architecture implemented for the customer portal.
## Folder Structure
```
apps/portal/src/
├── app/ # Next.js App Router pages
├── components/ # Shared UI components (Design System)
│ ├── ui/ # Base UI components (atoms)
│ ├── layout/ # Layout components (organisms)
│ └── common/ # Shared business components (molecules)
├── features/ # Feature-specific modules
│ ├── auth/ # Authentication feature
│ ├── dashboard/ # Dashboard feature
│ ├── billing/ # Billing feature
│ ├── subscriptions/ # Subscriptions feature
│ ├── catalog/ # Product catalog feature
│ └── support/ # Support feature
├── lib/ # Core utilities and services (replaces core/shared)
│ ├── api/ # API client and base services
│ ├── query.ts # Query client and keys
│ ├── env.ts # Runtime env parsing
│ ├── types/ # Shared TypeScript types
│ └── utils/ # Utility functions (cn, currency, error-display, ...)
├── providers/ # React context providers (e.g., QueryProvider)
└── styles/ # Global styles and design tokens
```
## Design Principles
### 1. Feature-First Organization
Related functionality is grouped together in feature modules, making it easier to understand and maintain code.
### 2. Atomic Design
UI components are organized hierarchically:
- **Atoms**: Basic building blocks (Button, Input, etc.)
- **Molecules**: Combinations of atoms (SearchBar, DataTable, etc.)
- **Organisms**: Complex components (Layout, Header, etc.)
### 3. Separation of Concerns
Each feature module contains:
- `components/`: UI components specific to the feature
- `hooks/`: React hooks for state and operations
- `services/`: Business logic and API calls
- `types/`: TypeScript type definitions
- `utils/`: Utility functions
### 4. Centralized Shared Resources
Common utilities, types, and components are centralized in the `lib/` and `components/` directories.
## Feature Module Structure
Each feature follows a consistent internal structure:
```
features/[feature-name]/
├── components/ # Feature-specific components
│ ├── [Component]/
│ │ ├── Component.tsx
│ │ ├── Component.test.tsx
│ │ └── index.ts
│ └── index.ts
├── hooks/ # Feature-specific hooks
│ ├── use[Feature].ts
│ └── index.ts
├── services/ # Feature business logic
│ ├── [feature].service.ts
│ └── index.ts
├── types/ # Feature-specific types
│ ├── [feature].types.ts
│ └── index.ts
├── utils/ # Feature utilities
└── index.ts # Feature public API
```
## Design System
The design system is built with:
### Design Tokens
- CSS custom properties for consistent theming
- TypeScript constants for type safety
- Semantic color and spacing systems
### Component Library
- Reusable UI components following atomic design
- Consistent styling and behavior patterns
- Accessibility-first approach
### Responsive Design
- Mobile-first responsive utilities
- Consistent breakpoint system
- Container queries for component-level responsiveness
## TypeScript Configuration
Enhanced TypeScript configuration with:
- Strict type checking enabled
- Path mappings for clean imports
- Enhanced error detection
- Import/export validation
## Import Patterns
### Recommended Import Patterns
```typescript
// Feature imports
import { LoginForm, useAuth } from '@/features/auth';
// Component imports
import { Button, Input } from '@/components/ui';
import { DataTable } from '@/components/common';
// Type imports
import type { User, ApiResponse } from '@/types';
// Utility imports
import { designSystem } from '@/lib/design-system';
// Prefer feature services/hooks over direct apiClient usage in pages
import { apiClient } from '@/lib/api/client';
```
### Path Mappings
- `@/*` - Root src directory
- `@/components/*` - Component library
- `@/features/*` - Feature modules
- `@/lib/*` - Core utilities
- `@/types` - Type definitions
- `@/styles/*` - Style files
- `@shared/*` - Shared package
## Migration Strategy
The migration to this new architecture will be done incrementally:
1. **Foundation** (Current): Set up folder structure and design system
2. **Core Components**: Migrate base UI components
3. **Feature Modules**: Migrate features one by one
4. **Optimization**: Performance and bundle optimization
5. **Cleanup**: Remove old code and dependencies
## Benefits
### Developer Experience
- Predictable code organization
- Easy to find and modify code
- Consistent patterns across features
- Better IntelliSense and type safety
### Maintainability
- Clear separation of concerns
- Reusable components and utilities
- Centralized design system
- Easier testing and debugging
### Performance
- Tree-shakeable exports
- Code splitting by feature
- Optimized bundle size
- Better caching strategies
### Scalability
- Easy to add new features
- Consistent architecture patterns
- Modular and composable design
- Clear boundaries between features
## Pages vs Features
- Route pages under `src/app/**` are thin shells and do not call APIs directly.
- Data fetching and business logic live in `src/features/**`:
- `services/`: centralized feature services built on the shared `apiClient`
- `hooks/`: React Query hooks that wrap services and expose typed operations
- `components/`: feature UI composed from shared atoms/molecules/organisms
This ensures pages remain declarative and the feature layer encapsulates logic.
### Current Feature Hooks/Services
- Catalog
- Hooks: `useInternetCatalog`, `useSimCatalog`, `useVpnCatalog`, `useProducts*`, `useCalculateOrder`, `useSubmitOrder`
- Service: `catalogService` (internet/sim/vpn endpoints consolidated)
- Billing
- Hooks: `useInvoices`, `usePaymentMethods`, `usePaymentGateways`, `usePaymentRefresh`
- Service: `BillingService`
- Orders
- Service: `ordersService` (list/detail/create)
- Account
- Service: `accountService` (`/me/address`)