# 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 - 2025-10-14 06:37:01

## Requirements Document
Generated: 2025-10-14T06:35:00.000Z

### Functional Requirements

#### FR-001: Note Creation
- **Description:** The system shall allow a user to create a new text note by providing a title and content.
- **Acceptance Criteria:**
    - The user interface provides input fields for 'Title' (text) and 'Content' (multiline text).
    - A 'Save' button is available to submit the new note.
    - Upon successful submission, a unique ID is assigned, the current date/time is recorded as `dateCreated`.
    - The new note object (`{id, title, content, dateCreated}`) is stored in local storage, as guided by `io8codermaster_plan.md`'s data model.
    - The note list display is immediately updated to include the new note.
    - The input fields are cleared after successful saving.
- **Priority:** High

#### FR-002: Note Listing
- **Description:** The system shall display all existing notes retrieved from local storage in a list format.
- **Acceptance Criteria:**
    - Upon application load, all notes previously saved in local storage are retrieved using `localStorageService.js`.
    - Each retrieved note is rendered as a distinct item in a display list.
    - Each list item clearly shows the note's title and a summary/snippet of its content.
    - Notes are displayed in a logical order (e.g., by `dateCreated` descending).
- **Priority:** High

#### FR-003: Note Editing
- **Description:** The system shall allow a user to modify the title and/or content of an existing note.
- **Acceptance Criteria:**
    - Each note in the list has an 'Edit' action/button.
    - Clicking 'Edit' populates the note creation/edit form with the selected note's existing title and content.
    - The user can modify the 'Title' and/or 'Content' fields.
    - A 'Save' or 'Update' button is available to commit changes.
    - Upon successful update, the modified note object is updated in local storage using its `id` via `localStorageService.js`.
    - The note list display is immediately updated to reflect the changes.
- **Priority:** High

#### FR-004: Note Deletion
- **Description:** The system shall allow a user to delete an existing note.
- **Acceptance Criteria:**
    - Each note in the list has a 'Delete' action/button.
    - Clicking 'Delete' removes the corresponding note from the displayed list.
    - The note is permanently removed from local storage via `localStorageService.js`.
    - A confirmation prompt may optionally be displayed before permanent deletion.
- **Priority:** High

#### FR-005: Local Storage Management
- **Description:** The system shall interact with the browser's `localStorage` API for all note persistence operations (Create, Read, Update, Delete), as a core feature from `io8codermaster_breakdown.md`.
- **Acceptance Criteria:**
    - New notes are stored as JSON strings under a specific key (e.g., `notes_app_notes`) in `localStorage`.
    - Existing notes are retrieved from `localStorage` upon application initialization.
    - Updates to notes are reflected in the corresponding `localStorage` entry.
    - Deleted notes are removed from `localStorage`.
    - All `localStorage` operations handle potential errors (e.g., quota exceeded) gracefully, providing basic user feedback if possible.
- **Priority:** High

## Non-Functional Requirements

#### NFR-001: Performance
- **Description:** All CRUD operations for notes should be performed efficiently to ensure a smooth user experience.
- **Acceptance Criteria:**
    - Loading and displaying up to 100 notes should complete within 1 second.
    - Creation, editing, and deletion of a single note should complete within 500 milliseconds of user interaction.

#### NFR-002: Usability
- **Description:** The application should be intuitive and easy for users to understand and operate.
- **Acceptance Criteria:**
    - Form fields for title and content are clearly labeled.
    - Buttons for 'Save', 'Edit', and 'Delete' are prominent and self-explanatory.
    - The note list is easy to read and differentiate individual notes.

#### NFR-003: Data Integrity
- **Description:** Note data stored in local storage must remain consistent and uncorrupted.
- **Acceptance Criteria:**
    - Notes retrieved from local storage match the data that was last saved.
    - Concurrent edits (not applicable for single-user scope) are not expected, but data should not be lost during normal operations.

#### NFR-004: Browser Compatibility
- **Description:** The application must function correctly across major modern web browsers.
- **Acceptance Criteria:**
    - Full functionality is available in the latest stable versions of Chrome, Firefox, Safari, and Edge.
    - `localStorage` availability is a prerequisite.

## Data Requirements
*   **Entity:** Note
    *   `id`: String (UUID), Primary Key, Non-Nullable. Generated automatically.
    *   `title`: String, Non-Nullable. User-provided.
    *   `content`: String, Nullable. User-provided.
    *   `dateCreated`: String (ISO 8601 format or similar timestamp), Non-Nullable. Generated automatically on creation.
*   **Storage Mechanism:** JavaScript `localStorage` API. Notes will be stored as an array of JSON objects, stringified, under a single key (e.g., `"notes_app_notes"`), as defined in `io8codermaster_plan.md`.
*   **Data Structure Example:**
    ```json
    {
      "id": "uuid-example-1",
      "title": "My First Note",
      "content": "This is the content of my very first note. It's quite exciting!",
      "dateCreated": "2025-10-14T06:30:00.000Z"
    }
    ```

## Interface Requirements
*   **IR-001: Main Layout:** A single-page application layout containing:
    *   A header (optional, for branding).
    *   A note input/edit form area.
    *   A note display list area.
*   **IR-002: Note Form:**
    *   'Title' text input field (single line).
    *   'Content' textarea field (multiline).
    *   'Save' button for creating new notes or updating existing ones.
*   **IR-003: Note List Item:**
    *   Each note in the list should display its title prominently.
    *   A truncated view or snippet of the content should be visible.
    *   'Edit' button/link for modifying the note.
    *   'Delete' button/link for removing the note.
*   **IR-004: Responsive Design:** The UI should be generally responsive, adjusting layout for common screen sizes (mobile, tablet, desktop) to ensure basic usability on various devices.

