152 lines
8.1 KiB
Markdown
152 lines
8.1 KiB
Markdown
# Requirements Document
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## Introduction
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This document outlines the requirements for replacing the existing Blessed-based Terminal User Interface (TUI) with a Windows-compatible alternative. The current TUI implementation using the Blessed library has compatibility issues on Windows systems, requiring a migration to a more robust, cross-platform TUI library that provides better Windows support while maintaining all existing functionality and user experience expectations.
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## Requirements
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### Requirement 1
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**User Story:** As a Windows user, I want a TUI that works reliably on my system, so that I can use the interactive interface without compatibility issues.
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#### Acceptance Criteria
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1. WHEN the TUI is launched on Windows THEN the system SHALL display correctly without rendering artifacts
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2. WHEN using Windows Terminal or Command Prompt THEN the system SHALL handle keyboard input properly
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3. WHEN the interface renders THEN the system SHALL display Unicode characters and colors correctly on Windows
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4. WHEN resizing the terminal window THEN the system SHALL adapt the layout appropriately
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5. WHEN using different Windows terminal emulators THEN the system SHALL maintain consistent behavior
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### Requirement 2
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**User Story:** As a developer, I want to replace Blessed with a better cross-platform TUI library, so that the application works consistently across all operating systems.
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#### Acceptance Criteria
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1. WHEN selecting a replacement library THEN the system SHALL prioritize Windows compatibility
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2. WHEN the new library is integrated THEN the system SHALL maintain feature parity with the Blessed implementation
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3. WHEN the library is chosen THEN the system SHALL have active maintenance and good documentation
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4. WHEN implementing the replacement THEN the system SHALL support modern terminal features
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5. WHEN the migration is complete THEN the system SHALL remove all Blessed dependencies
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### Requirement 3
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**User Story:** As a user, I want the same TUI functionality after the library replacement, so that my workflow remains unchanged.
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#### Acceptance Criteria
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1. WHEN the new TUI loads THEN the system SHALL display the same main menu structure
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2. WHEN navigating the interface THEN the system SHALL support the same keyboard shortcuts
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3. WHEN configuring settings THEN the system SHALL provide the same configuration options
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4. WHEN running operations THEN the system SHALL show the same progress indicators
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5. WHEN viewing logs THEN the system SHALL display the same information format
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### Requirement 4
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**User Story:** As a user, I want improved performance and responsiveness in the new TUI, so that the interface feels more fluid and responsive.
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#### Acceptance Criteria
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1. WHEN the TUI starts THEN the system SHALL load faster than the Blessed version
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2. WHEN updating progress displays THEN the system SHALL render smoothly without flickering
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3. WHEN handling large amounts of log data THEN the system SHALL maintain responsive scrolling
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4. WHEN switching between screens THEN the system SHALL transition quickly
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5. WHEN processing user input THEN the system SHALL respond immediately
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### Requirement 5
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**User Story:** As a developer, I want the new TUI implementation to follow modern JavaScript patterns, so that the code is maintainable and extensible.
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#### Acceptance Criteria
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1. WHEN implementing components THEN the system SHALL use ES6+ features and modern patterns
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2. WHEN structuring the code THEN the system SHALL follow the existing project architecture
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3. WHEN handling state THEN the system SHALL use clear state management patterns
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4. WHEN implementing event handling THEN the system SHALL use consistent event patterns
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5. WHEN writing tests THEN the system SHALL provide good test coverage for TUI components
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### Requirement 6
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**User Story:** As a user, I want enhanced visual feedback and better error handling in the new TUI, so that I have a clearer understanding of system status.
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#### Acceptance Criteria
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1. WHEN errors occur THEN the system SHALL display more informative error messages
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2. WHEN operations are running THEN the system SHALL provide clearer progress visualization
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3. WHEN configuration is invalid THEN the system SHALL highlight specific issues
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4. WHEN API calls fail THEN the system SHALL show detailed connection status
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5. WHEN the system is busy THEN the system SHALL provide appropriate loading indicators
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### Requirement 7
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**User Story:** As a developer, I want the migration to preserve all existing service integrations, so that business logic remains unchanged.
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#### Acceptance Criteria
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1. WHEN the new TUI is implemented THEN the system SHALL reuse existing ShopifyService without changes
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2. WHEN operations run THEN the system SHALL use existing ProductService and ProgressService
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3. WHEN configuration is managed THEN the system SHALL use existing environment configuration
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4. WHEN logs are generated THEN the system SHALL maintain compatibility with existing log formats
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5. WHEN the migration is complete THEN the system SHALL pass all existing integration tests
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### Requirement 8
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**User Story:** As a user, I want better accessibility features in the new TUI, so that the interface is more inclusive and easier to use.
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#### Acceptance Criteria
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1. WHEN using screen readers THEN the system SHALL provide appropriate text descriptions
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2. WHEN using high contrast mode THEN the system SHALL adapt color schemes appropriately
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3. WHEN using keyboard-only navigation THEN the system SHALL provide clear focus indicators
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4. WHEN text is displayed THEN the system SHALL support different font sizes and terminal settings
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5. WHEN colors are used THEN the system SHALL ensure sufficient contrast ratios
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### Requirement 9
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**User Story:** As a developer, I want comprehensive documentation for the new TUI library choice, so that future maintenance is straightforward.
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#### Acceptance Criteria
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1. WHEN the library is selected THEN the system SHALL document the selection rationale
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2. WHEN implementation patterns are established THEN the system SHALL document coding conventions
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3. WHEN components are created THEN the system SHALL include inline documentation
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4. WHEN the migration is complete THEN the system SHALL update all relevant README files
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5. WHEN troubleshooting guides are needed THEN the system SHALL provide Windows-specific guidance
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### Requirement 10
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**User Story:** As a user, I want the new TUI to handle terminal resizing and different screen sizes better, so that I can use it on various display configurations.
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#### Acceptance Criteria
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1. WHEN the terminal is resized THEN the system SHALL automatically adjust layout proportions
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2. WHEN using small terminal windows THEN the system SHALL provide appropriate scrolling
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3. WHEN using large displays THEN the system SHALL utilize available space effectively
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4. WHEN switching between portrait and landscape orientations THEN the system SHALL adapt accordingly
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5. WHEN minimum size requirements aren't met THEN the system SHALL display helpful guidance
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### Requirement 11
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**User Story:** As a developer, I want a smooth migration path from Blessed to the new library, so that the transition minimizes disruption.
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#### Acceptance Criteria
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1. WHEN planning the migration THEN the system SHALL identify all Blessed-specific code
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2. WHEN implementing replacements THEN the system SHALL maintain API compatibility where possible
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3. WHEN testing the migration THEN the system SHALL verify functionality on multiple Windows versions
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4. WHEN deploying the changes THEN the system SHALL provide fallback options if issues arise
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5. WHEN the migration is complete THEN the system SHALL clean up all legacy Blessed code
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### Requirement 12
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**User Story:** As a user, I want the new TUI to support modern terminal features, so that I can take advantage of enhanced terminal capabilities.
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#### Acceptance Criteria
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1. WHEN using modern terminals THEN the system SHALL support true color (24-bit) display
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2. WHEN terminals support it THEN the system SHALL use enhanced Unicode characters
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3. WHEN available THEN the system SHALL support mouse interaction for navigation
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4. WHEN terminals provide it THEN the system SHALL use improved cursor positioning
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5. WHEN modern features are unavailable THEN the system SHALL gracefully degrade functionality
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