Implement rev-requirements: Generate comprehensive requirements document from codebase analysis

Open Copilot opened this issue 7 months ago • 0 comments

This PR implements the rev-requirements functionality requested in issue #339, which generates a comprehensive requirements document by reverse-engineering the existing Aplin codebase.

What was implemented

The implementation analyzes the Android application codebase and generates a structured requirements document following the EARS (Easy Approach to Requirements Syntax) notation. The analysis covers:

Core Analysis Areas

Functional Requirements: 25 requirements extracted from UseCase classes, UI components, and business logic
Non-functional Requirements: 18 requirements covering performance, security, usability, reliability, maintainability, and operations
User Stories: 6 comprehensive stories derived from UI flows and user interactions
Edge Cases: 11 scenarios identified from error handling and validation code
Acceptance Criteria: Based on existing test suite with 85% confidence rating

Key Features Analyzed

The reverse engineering process identified and documented:

Application listing and categorization (User apps, Disableable apps, Disabled apps, All apps)
Search and filtering functionality
Android system integration (app settings, web search, sharing)
Google AdMob integration with GDPR compliance
Clean Architecture implementation with Domain/Data/UI layers
Comprehensive error handling and edge case management

EARS Notation Implementation

Requirements are properly categorized using EARS syntax:

SHALL requirements: Standard functional implementations
WHEN/IF-THEN requirements: Conditional logic from code branches
WHERE requirements: State-based requirements from UI state management
MAY requirements: Optional features and preferences
MUST requirements: System constraints and validation rules

Output

The generated document docs/reverse/Aplin-requirements.md provides:

System overview and user personas
Detailed functional requirements with implementation evidence
Non-functional requirements across all quality attributes
Edge cases and error scenarios
Acceptance criteria derived from existing tests
Analysis confidence metrics and limitations
Recommendations for additional testing and validation

This reverse-engineered requirements document serves as a comprehensive specification for the existing Aplin application, enabling better understanding of the system's capabilities and facilitating future development and maintenance activities.

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Aug 02 '25 11:08 Copilot