# 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 - 2025-09-25 05:46:26

## Requirements Document Update - 2025-09-25 05:46:30

### FR-001: Task Creation
- **Description:** The system shall allow users to create new tasks with a description and an optional due date.
- **Acceptance Criteria:**  A new task is successfully added to the task list with a non-empty description.  The due date, if provided, is a valid date. The task is correctly persisted (e.g. in local storage or database).
- **Priority:** High

### FR-002: Task Completion
- **Description:** The system shall allow users to mark a task as complete.
- **Acceptance Criteria:** When a user marks a task as complete, its status is updated to reflect this.  This change is visually indicated to the user. The change is persisted.
- **Priority:** High

### FR-003: Task Editing
- **Description:**  The system shall allow users to edit existing tasks (description and due date).
- **Acceptance Criteria:** Users can modify the description and/or due date of a task. Changes are saved and visually reflected.  Invalid due dates are rejected with appropriate feedback to the user.
- **Priority:** Medium

### FR-004: Task Deletion
- **Description:** The system shall allow users to delete tasks.
- **Acceptance Criteria:** A selected task is removed from the task list. The deletion is persisted.
- **Priority:** Medium

### FR-005: Task Listing
- **Description:** The system shall display a list of tasks.
- **Acceptance Criteria:** All tasks are displayed in a clear and organized manner. Completed and incomplete tasks are clearly distinguishable.  The list is updatable in real-time.
- **Priority:** High

### NFR-001: Usability
- **Description:** The application should be intuitive and easy to navigate.
- **Acceptance Criteria:** User testing confirms that the application is easy to learn and use. Users complete key tasks quickly and without difficulty.

### NFR-002: Performance
- **Description:** The application should respond quickly to user interactions.
- **Acceptance Criteria:**  Page load times are within acceptable limits (<2 seconds). User actions (adding, deleting, completing tasks) are processed quickly and efficiently.

### NFR-003: Reliability
- **Description:** The application should be stable and reliable.
- **Acceptance Criteria:** The application should not crash or experience unexpected errors during normal use. Data persistence is reliable; data is not lost after page refreshes or application restarts.




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## REQUIREMENTS UPDATE - 2025-09-25 05:46:34

## Requirements Document Update - 2025-09-25 05:55:00

### FR-006: Task Prioritization (Future Consideration)
- **Description:** The system *may* allow users to prioritize tasks (e.g., high, medium, low).  This is a potential feature for future development, not included in MVP.
- **Acceptance Criteria:**  Tasks can be assigned priority levels, and these priorities are displayed to the user.  Sorting and filtering by priority should be implemented.
- **Priority:** Low

### FR-007: Task Reminders (Future Consideration)
- **Description:** The system *may* allow users to set reminders for tasks.  This is a potential feature for future development, not included in MVP.
- **Acceptance Criteria:**  Users can set reminders for tasks; these reminders are triggered at the specified time and delivered via suitable means (e.g., browser notifications).
- **Priority:** Low

### NFR-004: Scalability
- **Description:** The application should be scalable to accommodate a growing number of users and tasks.
- **Acceptance Criteria:** The application should perform efficiently even with a large number of users and tasks.  Database design and server architecture should account for scalability.
- **Priority:** Medium

### NFR-005: Maintainability
- **Description:** The application should be easy to maintain and update.
- **Acceptance Criteria:** The codebase should be well-structured, documented, and easy to understand.  Testing should be comprehensive to facilitate future updates.
- **Priority:** High

### Data Requirements
- A database (or suitable persistent storage) is needed to store tasks.  This database should store at least the task description, due date (optional), and completion status.

### Interface Requirements
- The UI should be simple and intuitive, enabling users to easily interact with the application's core functionalities.
- The design should be responsive and adaptable to different screen sizes.


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## REQUIREMENTS UPDATE - 2025-09-25 05:52:05

## Requirements Document Update - 2025-09-25T12:00:00

This section updates the requirements document based on the user prompt: "to do app".

### FR-001: Task Creation
- **Description:** The system shall allow users to create new to-do tasks by providing a description.  The system should also provide feedback indicating successful task creation.
- **Acceptance Criteria:** A user can successfully input task descriptions, and the task appears in the task list.  An appropriate success message is displayed upon successful creation.
- **Priority:** High

### FR-002: Task Editing
- **Description:** The system shall allow users to edit the description of an existing task.
- **Acceptance Criteria:** A user can select an existing task and modify its description.  The changes should be reflected in the task list and saved persistently.
- **Priority:** High

### FR-003: Task Deletion
- **Description:** The system shall allow users to delete tasks from the list.
- **Acceptance Criteria:** A user can select a task and initiate a delete operation.  The task should be removed from the list and deleted from persistent storage.  Confirmation of deletion may be required.
- **Priority:** High

### FR-004: Task Completion
- **Description:** The system shall allow users to mark tasks as complete.
- **Acceptance Criteria:** A user can select a task and mark it as complete.  The status of the task should be updated visually, and persistently stored.
- **Priority:** High

### FR-005: Task Listing
- **Description:** The system shall display a list of all to-do tasks.
- **Acceptance Criteria:** All created tasks are displayed in a clear and organized manner.  Sorting and filtering of tasks should be considered in future iterations.
- **Priority:** High

### NFR-001: Usability
- **Description:** The application should be easy to navigate and intuitive to use.
- **Acceptance Criteria:** User testing will be conducted to assess ease of use.  Feedback from usability testing will be used to refine the application's design and functionality.
- **Priority:** High

### NFR-002: Performance
- **Description:** The application should respond quickly to user interactions.
- **Acceptance Criteria:** Load times for task lists and response times for task creation/deletion/editing should be within acceptable limits (to be defined later).
- **Priority:** High
