# 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`.

---

## REQUIREMENTS UPDATE - 2025-10-02 06:12:28


## Requirements Update: Expanded Scope - 2025-10-02 [current_timestamp]

This section appends detailed requirements based on the expanded project scope, including user authentication, search, filtering, rich text editing, and note tagging, as identified in the updated `.io8codermaster_breakdown.md` and `.io8codermaster_plan.md`.

### Functional Requirements Update
Generated: 2025-10-02 [current_timestamp]

### FR-007: User Registration
-   **Description:** The system shall allow new users to register for an account.
-   **Acceptance Criteria:**
    -   A dedicated registration form is accessible from the login/landing page.
    -   User can input a unique username and a password.
    -   System validates username uniqueness and password strength (min. 8 chars, 1 uppercase, 1 number, 1 special char).
    -   Upon successful registration, user account is created, and credentials securely stored.
    -   User receives immediate feedback on registration success or failure.
-   **Priority:** High

### FR-008: User Login
-   **Description:** The system shall allow registered users to log in to access their notes.
-   **Acceptance Criteria:**
    -   A dedicated login form is available.
    -   User can input their registered username and password.
    -   System authenticates credentials and grants access upon success.
    -   System provides clear error messages for incorrect credentials.
-   **Priority:** High

### FR-009: User Logout
-   **Description:** The system shall allow authenticated users to securely log out of their session.
-   **Acceptance Criteria:**
    -   A 'Logout' option is clearly visible when logged in.
    -   Clicking 'Logout' terminates the user's session.
    -   User is redirected to the login page or landing page after logout.
-   **Priority:** High

### FR-010: Search Notes
-   **Description:** The system shall allow users to search for notes by keywords in their title or content.
-   **Acceptance Criteria:**
    -   A search input field is available on the notes list page.
    -   Entering keywords and submitting (e.g., pressing Enter) triggers a search.
    -   The notes list displays only notes that contain the keywords (case-insensitive) in their title or content.
-   **Priority:** Medium

### FR-011: Filter Notes
-   **Description:** The system shall provide options for users to filter their notes based on predefined criteria.
-   **Acceptance Criteria:**
    -   Filter controls (e.g., dropdowns for tags, date pickers for creation/update range) are available.
    -   Selecting filter criteria immediately updates the displayed notes list.
    -   Users can clear applied filters.
-   **Priority:** Medium

### FR-012: Rich Text Editing for Notes
-   **Description:** The system shall provide a rich text editor for the note content field to allow basic text formatting.
-   **Acceptance Criteria:**
    -   When creating or editing a note, the content input area is equipped with a rich text editor toolbar.
    -   Users can apply formatting such as bold, italics, underline, bullet points, numbered lists, and headings.
    -   Formatted content is correctly saved and rendered when viewing the note.
-   **Priority:** Medium

### FR-013: Note Tagging
-   **Description:** The system shall allow users to associate one or more tags with a note.
-   **Acceptance Criteria:**
    -   When creating or editing a note, an input field or selection mechanism for tags is available.
    -   Users can add new tags or select from existing ones.
    -   Tags associated with a note are displayed in the note's detail view and potentially in the list view.
-   **Priority:** Medium

### Non-Functional Requirements Update
Generated: 2025-10-02 [current_timestamp]

### NFR-002: Security (Enhanced)
-   **Description:** The application shall ensure robust security for user accounts, credentials, and note data, protecting against common vulnerabilities and unauthorized access.
-   **Acceptance Criteria:**
    -   User authentication (login/registration) uses industry-standard secure practices (e.g., hashed and salted passwords).
    -   Session management is secure, utilizing short-lived, encrypted tokens (e.g., JWT) transmitted over HTTPS.
    -   Authorization checks are performed on all backend API endpoints to ensure users can only access/modify their own notes.
    -   All data transmitted between frontend and backend is encrypted via HTTPS.
    -   Backend implements comprehensive input validation and sanitization for all user-provided data (titles, content, search queries, tags) to prevent XSS, SQL injection, and other attacks.
    -   Frontend implements client-side validation for input fields to provide immediate user feedback and enhance security.
    -   Brute-force protection (e.g., rate limiting, CAPTCHA) is implemented for authentication endpoints.
-   **Priority:** Critical

### NFR-006: Scalability (Enhanced)
-   **Description:** The application's architecture shall be designed to efficiently handle an increasing number of users and notes, including search and filter operations.
-   **Acceptance Criteria:**
    -   The database schema and indexing strategy support efficient retrieval for large datasets, especially for search and filter queries.
    -   Backend services are stateless to facilitate horizontal scaling.
    -   (To be elaborated by io8architect/io8developer) Performance remains acceptable for 100,000 notes per user and 10,000 concurrent users (specific metrics TBD).
-   **Priority:** Medium

### Data Requirements Update
Generated: 2025-10-02 [current_timestamp]

### User Entity
-   **Name:** User
-   **Description:** Represents an individual user account in the system.
-   **Attributes:**
    -   `id`: (Primary Key, Unique Identifier, UUID) - Automatically generated.
    -   `username`: (String, Required, Unique) - User's unique identifier for login. Max length TBD.
    -   `passwordHash`: (String, Required) - Hashed and salted password.
    -   `createdAt`: (Timestamp, Required) - Date and time of account creation.
    -   `updatedAt`: (Timestamp, Required) - Date and time of last profile update.

### Note Entity (Updated)
-   **Name:** Note
-   **Description:** Represents a single user note with associated content and metadata.
-   **Attributes:**
    -   `id`: (Primary Key, Unique Identifier, UUID/Integer) - Automatically generated.
    -   `userId`: (Foreign Key, Required) - Links to the `User` who owns the note.
    -   `title`: (String, Required) - The title of the note. Max length TBD.
    -   `content`: (Text/RichText, Optional) - The main body content of the note. Max length TBD.
    -   `createdAt`: (Timestamp, Required) - The date and time when the note was first created. Automatically generated.
    -   `updatedAt`: (Timestamp, Required) - The date and time when the note was last modified. Automatically updated.
    -   `tags`: (Array of Strings/IDs, Optional) - List of tags associated with the note (can be a many-to-many relationship with a separate Tag entity for complex tagging).

### Tag Entity (Optional, for advanced tagging system)
-   **Name:** Tag
-   **Description:** Represents a user-defined tag for organizing notes.
-   **Attributes:**
    -   `id`: (Primary Key, Unique Identifier, UUID/Integer) - Automatically generated.
    -   `userId`: (Foreign Key, Required) - Links to the `User` who owns the tag.
    -   `name`: (String, Required, Unique per user) - The name of the tag. Max length TBD.

### Interface Requirements Update
Generated: 2025-10-02 [current_timestamp]

### UI/UX Requirements (Enhanced)
-   **IR-008: Authentication Forms:** Dedicated pages/modals for user registration and login, designed using Clarity components, with clear input fields, validation feedback, and submit actions.
-   **IR-009: Search Bar:** An easily accessible search bar (Clarity input group) on the notes list view.
-   **IR-010: Filter Controls:** UI elements (e.g., dropdowns, checkboxes, date range pickers using Clarity controls) for applying filters to the notes list.
-   **IR-011: Rich Text Editor Integration:** The note content input field shall be replaced with or augmented by a rich text editor component.
-   **IR-012: Tag Input/Display:** UI for adding/selecting tags (e.g., a multi-select dropdown, token input field) and displaying them visually (e.g., Clarity labels or badges) with the note.
-   **IR-013: User Navigation/Profile:** A visible area (e.g., in the header or sidebar) to indicate the logged-in user and provide access to logout and potentially future profile settings.

### API Requirements (Frontend to Backend - Enhanced)
-   **IR-014: Authentication Endpoints:**
    -   `POST /api/auth/register`: Register a new user (request body: {username, password}).
    -   `POST /api/auth/login`: Authenticate user and return an access token (request body: {username, password}).
    -   `POST /api/auth/logout`: Invalidate user's session/token.
-   **IR-015: Note Endpoints (Updated for Authorization, Search, Filter, Tags):**
    -   `GET /api/notes?search={keyword}&tag={tag_name}&startDate={date}&endDate={date}`: Retrieve notes, supporting optional search and filter parameters. Requires authentication.
    -   `POST /api/notes`: Create a new note (request body: {title, content, tags}). Requires authentication.
    -   `GET /api/notes/{id}`: Retrieve a single note by ID. Requires authentication.
    -   `PUT /api/notes/{id}`: Update an existing note by ID (request body: {title, content, tags}). Requires authentication.
    -   `DELETE /api/notes/{id}`: Delete a note by ID. Requires authentication.
-   **IR-016: Tag Management Endpoints (if Tag Entity is implemented for user-defined tags):**
    -   `GET /api/tags`: Retrieve all tags for the authenticated user.
    -   `POST /api/tags`: Create a new tag.
    -   `DELETE /api/tags/{id}`: Delete a tag.
-   **IR-017: Error Handling (Enhanced):** API responses shall include specific error codes and messages for authentication failures, authorization errors, validation failures, and server errors.


---

## REQUIREMENTS UPDATE - 2025-10-02 06:14:03

# Requirements Document
Generated: 2025-10-02T05:58:20.218128

## Functional Requirements

### FR-001: Note Creation
- **Description:** The system shall allow authenticated users to create new notes.
- **Acceptance Criteria:**
    - The user can input a title (mandatory, min 1 char, max 255 chars).
    - The user can input content (optional, supports rich text in Phase 2).
    - Upon successful creation, the new note is associated with the logged-in user.
- **Priority:** High (MVP)

### FR-002: Note Listing
- **Description:** The system shall display a list of all notes belonging to the authenticated user.
- **Acceptance Criteria:**
    - Each note in the list displays its title and a preview of its content.
    - Notes are ordered by creation date (newest first) by default.
    - The list updates automatically after note creation, update, or deletion.
- **Priority:** High (MVP)

### FR-003: Note Viewing
- **Description:** The system shall allow authenticated users to view the full details of a specific note.
- **Acceptance Criteria:**
    - Navigating to a note displays its full title and content.
    - Any rich text formatting applied to the content is rendered correctly.
- **Priority:** High (MVP)

### FR-004: Note Editing
- **Description:** The system shall allow authenticated users to update the title and content of an existing note.
- **Acceptance Criteria:**
    - The user can modify the note's title and content through an editable interface.
    - Changes are saved successfully upon explicit user action (e.g., "Save" button).
    - Input validation is performed before saving.
- **Priority:** High (MVP)

### FR-005: Note Deletion
- **Description:** The system shall allow authenticated users to delete an existing note.
- **Acceptance Criteria:**
    - A confirmation prompt is displayed before irreversible deletion.
    - Upon confirmation, the note is permanently removed from the system.
    - The deleted note is no longer visible in the user's notes list.
- **Priority:** High (MVP)

### FR-006: User Registration
- **Description:** The system shall allow new users to register for an account.
- **Acceptance Criteria:**
    - Users can provide a unique username, valid email, and password.
    - Passwords must meet defined complexity requirements.
    - Account creation results in a new user record and optionally logs the user in.
- **Priority:** High (MVP)

### FR-007: User Login
- **Description:** The system shall allow registered users to log in to their account.
- **Acceptance Criteria:**
    - Users can authenticate using their registered username/email and password.
    - Successful login establishes a secure session.
    - Failed login attempts provide generic error messages to prevent enumeration attacks.
- **Priority:** High (MVP)

### FR-008: User Logout
- **Description:** The system shall allow authenticated users to securely log out of their account.
- **Acceptance Criteria:**
    - Logging out terminates the user's session.
    - The user is redirected to the login or home page.
- **Priority:** High (MVP)

### FR-009: Note Search (Phase 2)
- **Description:** The system shall allow users to search for notes by keywords in their title or content.
- **Acceptance Criteria:**
    - A search input field is available on the notes list page.
    - Search results update dynamically or upon submission, displaying only matching notes.
- **Priority:** Medium

### FR-010: Note Filtering by Tag (Phase 2)
- **Description:** The system shall allow users to filter their notes based on assigned tags.
- **Acceptance Criteria:**
    - Users can select one or more tags from a filter interface.
    - The notes list updates to show only notes containing all selected tags.
- **Priority:** Medium

### FR-011: Tag Management (Phase 2)
- **Description:** The system shall allow users to add and remove tags for their notes.
- **Acceptance Criteria:**
    - Users can input new tags during note creation or editing.
    - Tags are displayed associated with the note.
    - Users can remove tags from a note.
- **Priority:** Medium

### FR-012: Rich Text Editing (Phase 2)
- **Description:** The system shall provide rich text editing capabilities for note content.
- **Acceptance Criteria:**
    - The note content input area supports basic formatting (e.g., bold, italics, lists, headings).
    - The rich text formatting is stored and rendered correctly upon viewing.
- **Priority:** Medium

## Non-Functional Requirements

### NFR-001: Performance
- **Description:** The application must provide a responsive user experience.
- **Acceptance Criteria:**
    - Initial page load time for the notes list should be under 3 seconds on a standard broadband connection.
    - Saving/updating a note should complete within 1 second.
    - Retrieving a list of 100 notes should complete within 2 seconds.

### NFR-002: Security
- **Description:** The application must protect user data and prevent unauthorized access.
- **Acceptance Criteria:**
    - Passwords must be hashed and salted before storage.
    - User sessions must be managed securely (e.g., JWT, secure cookies, short expiry).
    - All API endpoints must require authentication for access to user-specific data.
    - Data in transit must be encrypted using HTTPS.
    - Input validation must be implemented for all user-provided data to prevent common web vulnerabilities.

### NFR-003: Usability
- **Description:** The application must be intuitive and easy to use.
- **Acceptance Criteria:**
    - The user interface design should be consistent and leverage the Clarity Design System.
    - Clear and concise error messages and success notifications should be provided.
    - Navigation between different views (e.g., list, create, edit) should be straightforward.
    - The application must be responsive and functional on common desktop and mobile browser sizes.

### NFR-004: Maintainability
- **Description:** The application codebase must be well-organized and easy to modify.
- **Acceptance Criteria:**
    - Code follows established coding standards and best practices for Angular (frontend) and chosen backend framework.
    - Key components, services, and modules are documented.
    - Unit tests cover at least 80% of critical business logic.

### NFR-005: Scalability
- **Description:** The backend system should be capable of handling an increasing number of users and notes.
- **Acceptance Criteria:
    - The backend API should support horizontal scaling (stateless design where possible).
    - Database queries should be optimized for performance with a growing dataset.

## Data Requirements
### Entity: User
- **ID:** Unique identifier (e.g., UUID/INT, primary key)
- **Username:** String, unique, required
- **Email:** String, unique, required, valid email format
- **PasswordHash:** String, required (hashed password)
- **CreatedAt:** Timestamp, required
- **UpdatedAt:** Timestamp, required

### Entity: Note
- **ID:** Unique identifier (e.g., UUID/INT, primary key)
- **UserID:** Foreign key referencing User.ID, required (ensures ownership)
- **Title:** String, required, max 255 chars
- **Content:** Text/String, optional (supports rich text in Phase 2)
- **Tags:** Array of Strings/Many-to-Many relationship (Phase 2)
- **CreatedAt:** Timestamp, required
- **UpdatedAt:** Timestamp, required

### Relationships:
- One `User` can have many `Notes`.
- One `Note` belongs to one `User`.
- `Note` to `Tag` is a many-to-many relationship (Phase 2).

## Interface Requirements
- **Frontend Framework:** Angular (leveraging the base project's Clarity Design System).
- **Layout:** Responsive layout with a clear header, main content area, and potentially a sidebar for navigation/filters (similar to Clarity boilerplate).
- **Components:**
    - **Authentication:** Login form, Registration form.
    - **Notes List:** Display notes (title, preview), search bar, filter options, "New Note" button.
    - **Note Detail/Editor:** Input fields for title and content (with rich text editor in Phase 2), "Save" and "Delete" buttons.
    - **Navigation:** Clear navigation between notes list, note creation, and potentially user profile.
    - **Modals/Dialogs:** Confirmation dialogs for deletion, informational alerts.
- **API Endpoints:** RESTful API for User authentication and Note CRUD operations, as detailed in the `io8codermaster_breakdown.md` and subsequent architect/developer outputs.
- **Error Handling:** User-friendly error messages and appropriate visual feedback for failed operations.

