# Requirements Document
Generated: Tuesday, September 16, 2025

## Functional Requirements (Developer-Facing)

### FR-001: Project Initialization
- **Description:** The system shall provide a developer-ready Angular project that can be set up with minimal effort.
- **Acceptance Criteria:**
    - A developer shall be able to clone the project from a Git repository.
    - A developer shall be able to install all required dependencies using a single `npm install` command.
    - A developer shall be able to start the local development server using the `ng serve` command.
    - The boilerplate shall compile without errors and be viewable in a web browser.
- **Priority:** High

### FR-002: Modular Architecture
- **Description:** The system shall be structured with a scalable and maintainable modular architecture.
- **Acceptance Criteria:**
    - The project shall include a `CoreModule` for providing singleton services and one-time imports.
    - The project shall include a `SharedModule` for reusable components, directives, and pipes.
    - The architecture shall support the creation of lazy-loaded `FeatureModules` to encapsulate business domain logic.
- **Priority:** High

### FR-003: Clarity Design System Integration
- **Description:** The system shall be fully integrated with the VMware Clarity Design System for UI components and styling.
- **Acceptance Criteria:**
    - All necessary Clarity npm packages shall be included as dependencies.
    - Clarity's global stylesheets and assets shall be correctly configured and loaded.
    - The boilerplate shall use Clarity components for its core layout (header, sidebar, etc.).
    - Developers shall be able to use any Clarity component within their feature modules.
- **Priority:** High

### FR-004: Responsive Application Layout
- **Description:** The system shall provide a default, responsive application layout.
- **Acceptance Criteria:**
    - The boilerplate shall include a main application shell with a header, a collapsible sidebar for navigation, and a main content area.
    - The layout shall adapt correctly to various screen sizes, including desktop, tablet, and mobile.
- **Priority:** High

### FR-005: Routing and Navigation
- **Description:** The system shall include a pre-configured routing system for navigating between different views.
- **Acceptance Criteria:**
    - The project shall have a main `AppRoutingModule`.
    - The boilerplate shall provide an example of a lazy-loaded feature route.
    - Navigation links in the sidebar shall correctly navigate to their corresponding routes.
- **Priority:** Medium

## Non-Functional Requirements

### NFR-001: Performance (Developer Experience)
- **Description:** The boilerplate should be optimized for a fast and efficient development workflow.
- **Acceptance Criteria:**
    - The initial `ng serve` compilation time shall be reasonably fast.
    - Live-reloading times during development shall be minimal.
    - The production build (`ng build --prod`) shall be optimized, with tree-shaking and minification enabled.
- **Priority:** Medium

### NFR-002: Usability (Developer Experience)
- **Description:** The codebase should be intuitive and easy for an Angular developer to understand and extend.
- **Acceptance Criteria:**
    - The project structure shall be logical and follow established Angular best practices.
    - The code shall be clean, well-formatted, and include comments for complex or non-obvious sections.
    - A comprehensive `README.txt` file shall guide developers on setup, architecture, and usage.
- **Priority:** High

### NFR-003: Maintainability
- **Description:** The codebase should be structured to allow for easy updates, modifications, and extensions.
- **Acceptance Criteria:**
    - The modular architecture shall allow for independent development and testing of features.
    - Dependencies shall be clearly defined in `package.json` and easy to update.
    - The separation of concerns between modules should be strictly enforced.
- **Priority:** High

## Data Requirements (Client-Side)

### Entity Modeling:
- **Description:** The boilerplate will not have predefined data models but will require developers to define them using TypeScript.
- **Attributes:**
    - Data models shall be defined as **TypeScript interfaces or classes**.
    - These models will represent the structure of data consumed from and sent to a backend API.

## Interface Requirements

### UI/UX Requirements (Frontend Boilerplate):
- **Layout:** A clean, professional single-page application layout based on the Clarity Design System.
- **Header:** A top header bar, typically containing the application title/logo and user-related actions (e.g., profile, logout).
- **Sidebar:** A collapsible vertical navigation sidebar containing links to different feature areas of the application.
- **Content Area:** A main content area where the components for the currently active route are displayed.
- **Styling:** Adherence to the styles and design tokens provided by the Clarity Design System.

### API Requirements (Backend Interaction):
- **Backend Agnostic:** The boilerplate is a frontend application and makes no assumptions about the backend technology stack.
- **Communication Protocol:** The boilerplate shall use Angular's `HttpClient` module to communicate with a backend over HTTP/HTTPS.
- **API Endpoint Configuration:** The base URL for the backend API shall be configurable via the `environments` files (e.g., `environment.ts`, `environment.prod.ts`).
- **Data Format:** The boilerplate is designed to work with APIs that transact data in **JSON** format.
- **Error Handling:** The architecture shall support a centralized way to handle API errors, typically through an `HttpInterceptor` provided in the `CoreModule`.

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## REQUIREMENTS UPDATE - 2025-10-09 05:00:52



### Requirements Document Update - 2025-10-09T05:00:00.000Z

## Functional Requirements

### FR-001: Create Note
- **Description:** The system shall allow users to create a new note by providing a title and content.
- **Acceptance Criteria:**
    - Users can access a dedicated form for new note creation.
    - The form includes input fields for 'Title' (text, required, max 100 characters) and 'Content' (multiline text, optional, no max).
    - Upon successful submission, the note is stored persistently in the database.
    - The new note appears in the user's list of notes.
    - Error messages are displayed for invalid input (e.g., empty title).
- **Priority:** High

### FR-002: View All Notes
- **Description:** The system shall display a list of all notes to the user.
- **Acceptance Criteria:**
    - The application's main interface or a dedicated 'Notes List' view presents all notes.
    - Each note in the list displays at least its title and a short preview of its content.
    - The list is ordered (e.g., by creation date, latest first) for easy browsing.
- **Priority:** High

### FR-003: View Individual Note Details
- **Description:** The system shall enable users to view the complete title and content of a selected note.
- **Acceptance Criteria:**
    - Clicking on a note from the list navigates the user to a detail view.
    - The detail view clearly shows the full title and full content of the selected note.
    - Navigation options are available to return to the notes list or initiate an edit of the current note.
- **Priority:** High

### FR-004: Edit Existing Note
- **Description:** The system shall allow users to modify the title and content of an existing note.
- **Acceptance Criteria:**
    - From the note detail view, an 'Edit' action is available.
    - Clicking 'Edit' presents a form pre-filled with the current note's title and content.
    - Users can modify both fields.
    - Upon successful submission, the changes are updated in the database.
    - The updated note details are immediately reflected in the application.
- **Priority:** High

### FR-005: Delete Note
- **Description:** The system shall provide functionality for users to permanently delete a note.
- **Acceptance Criteria:**
    - A 'Delete' action is available on individual notes (e.g., in detail view or list item).
    - Clicking 'Delete' triggers a confirmation prompt to prevent accidental deletion.
    - Upon user confirmation, the note is removed from the database.
    - The deleted note no longer appears in the list of notes.
- **Priority:** High

### FR-006: Persist Notes Data
- **Description:** The system shall ensure that all notes data (create, update, delete) is stored persistently.
- **Acceptance Criteria:**
    - All changes to notes (creation, modification, deletion) are saved to a relational database.
    - Note data remains intact and accessible even after the application is closed and reopened.
    - Data consistency is maintained across multiple user sessions.
- **Priority:** High

### FR-007: User Registration (Stretch Goal)
- **Description:** The system *may* allow new users to register for an account.
- **Acceptance Criteria:**
    - Users can access a registration form.
    - The form requires a unique username/email and a password.
    - Upon successful registration, a new user account is created with securely stored credentials.
- **Priority:** Medium

### FR-008: User Login (Stretch Goal)
- **Description:** The system *may* allow registered users to log in to their account.
- **Acceptance Criteria:**
    - Users can access a login form.
    - The form requires username/email and password.
    - Upon successful login, the user is authenticated and granted access to their notes.
- **Priority:** Medium

## Non-Functional Requirements

### NFR-001: Performance
- **Description:** The application shall provide a responsive experience with fast data retrieval.
- **Acceptance Criteria:**
    - The list of notes (FR-002) shall load within 2 seconds for up to 100 notes on a standard broadband connection.
    - Individual note details (FR-003) shall load within 1 second.
    - Create, Edit, and Delete operations (FR-001, FR-004, FR-005) shall complete and provide feedback within 1.5 seconds under normal network conditions.
- **Priority:** High

### NFR-002: Usability
- **Description:** The application shall be intuitive and easy for a typical user to operate.
- **Acceptance Criteria:**
    - Navigation between notes list, detail, and edit forms is clear and consistent.
    - Buttons and interactive elements are clearly labeled and appropriately sized for touch and mouse input.
    - Feedback mechanisms (e.g., success messages, error alerts) are provided for all user actions.
- **Priority:** High

### NFR-003: Reliability
- **Description:** The application shall maintain data integrity and availability for notes.
- **Acceptance Criteria:**
    - No data corruption or loss shall occur during note creation, modification, or deletion operations.
    - The application shall recover gracefully from backend service interruptions, notifying the user appropriately.
    - All saved notes shall be consistently available for retrieval.
- **Priority:** High

### NFR-004: Scalability
- **Description:** The application's architecture shall be designed to allow for future expansion and increased user/data load.
- **Acceptance Criteria:**
    - The backend API should be capable of handling requests from hundreds of users without significant degradation in performance (initial design). 
    - The data model should be extensible to support features like tagging or search without major refactoring.
- **Priority:** Medium

### NFR-005: Security
- **Description:** The application shall implement basic security measures to protect user data and prevent common vulnerabilities.
- **Acceptance Criteria:**
    - All user input (title, content) shall be validated and sanitized on both client and server sides to prevent XSS and injection attacks.
    - If user authentication (FR-007, FR-008) is implemented, user passwords shall be hashed and securely stored.
    - Communication between frontend and backend shall use HTTPS.
- **Priority:** Medium

### NFR-006: Maintainability
- **Description:** The codebase shall be structured for easy understanding, modification, and extension.
- **Acceptance Criteria:**
    - The project adheres to a modular design (e.g., separate frontend/backend, clear component structure).
    - Code comments and inline documentation explain complex logic.
    - Dependencies are managed and updated regularly.
    - Follows established coding standards for the chosen technologies.
- **Priority:** High

## Data Requirements

### Entity: Note
- **Description:** Represents a single user note with textual content.
- **Attributes:**
    - `id`: Unique identifier (UUID/Integer, Primary Key)
    - `title`: String (Required, max 100 characters)
    - `content`: Text (Optional, large text field)
    - `createdAt`: Timestamp (Auto-generated on creation)
    - `updatedAt`: Timestamp (Auto-updated on modification)
    - `userId`: (Optional) Foreign Key referencing `User.id` if authentication is implemented.

### Entity: User (Optional, if FR-007/FR-008 are implemented)
- **Description:** Represents an application user.
- **Attributes:**
    - `id`: Unique identifier (UUID/Integer, Primary Key)
    - `username`: String (Required, Unique)
    - `email`: String (Optional, Unique)
    - `passwordHash`: String (Required, stores hashed password)
    - `createdAt`: Timestamp (Auto-generated on creation)

## Interface Requirements

### UI-001: General Layout
- **Description:** The application shall feature a responsive web interface adaptable to various screen sizes.
- **Acceptance Criteria:**
    - The layout includes a clear header and a main content area.
    - Elements resize and reflow appropriately for mobile, tablet, and desktop views.
    - Consistent styling and branding across all pages.
- **Priority:** High

### UI-002: Notes List View
- **Description:** A primary view displaying all existing notes.
- **Acceptance Criteria:**
    - Presents notes as a list, displaying title and a content snippet.
    - Includes an obvious control (button/icon) to create a new note.
    - Each list item is clickable to navigate to the note's detail view.
- **Priority:** High

### UI-003: Note Detail View
- **Description:** A view dedicated to displaying the full content of a single note.
- **Acceptance Criteria:**
    - Clearly shows the full title and full content of the selected note.
    - Provides 'Edit' and 'Delete' controls.
    - Includes a 'Back' or 'Close' control to return to the notes list.
- **Priority:** High

### UI-004: Note Creation/Edit Form
- **Description:** A form for creating new notes and editing existing ones.
- **Acceptance Criteria:**
    - Contains input fields for 'Title' and 'Content'.
    - For editing, fields are pre-populated with existing note data.
    - Includes 'Save'/'Submit' and 'Cancel' buttons.
    - Provides clear error messages for validation failures.
- **Priority:** High

### UI-005: User Authentication Interface (Stretch Goal)
- **Description:** Interface for user registration and login.
- **Acceptance Criteria:**
    - Separate forms for 'Register' and 'Login' with appropriate input fields (e.g., username/email, password).
    - Includes feedback for successful operations and error messages for failed attempts (e.g., incorrect credentials, username already taken).
- **Priority:** Medium
