spec.md 5.98 KB

Raw Blame History Permalink



ADDED Requirements


Requirement: PNG Format Validation and Correction

The system SHALL validate and correct PNG file format to ensure compatibility with professional image editing software.


Scenario: Generated image format validation


WHEN an image is generated from the Gemini API

THEN the system SHALL process the image bytes through PNG validation

AND ensure the saved PNG file has proper headers and metadata

AND validate that the file can be opened by standard image libraries

AND maintain the original visual quality and content of the image


Scenario: Reference image format validation


WHEN reference images are saved with generation records

THEN each reference image SHALL be validated for PNG format compliance

AND corrected if necessary to ensure proper PNG structure

AND saved with standard PNG compression and metadata

AND maintain the original visual content of reference images


Scenario: Download image format validation


WHEN a user downloads the generated image

THEN the system SHALL provide a PNG file with validated format

AND ensure the downloaded file can be opened in Adobe Photoshop

AND maintain compatibility with other professional image editing tools

AND preserve the image quality and characteristics


Scenario: Graceful fallback processing


WHEN PNG validation fails or Pillow library is unavailable

THEN the system SHALL fall back to original byte writing method

AND continue normal operation without user interruption

AND log the fallback event for debugging purposes

AND provide the image using the existing save mechanism


Requirement: PNG File Format Standardization

The system SHALL standardize all PNG files to comply with PNG specification requirements.


Scenario: PNG header and chunk validation


WHEN processing PNG image bytes

THEN the system SHALL validate PNG signature and critical chunks

AND ensure proper IHDR (image header) chunk structure

AND validate PLTE (palette) and IDAT (image data) chunks if present

AND ensure proper IEND (image end) chunk termination


Scenario: PNG metadata optimization


WHEN re-writing PNG files

THEN the system SHALL optimize PNG metadata for compatibility

AND include standard PNG text chunks for proper identification

AND ensure color profile information is properly encoded

AND maintain appropriate compression settings


Scenario: Cross-platform compatibility


WHEN saving PNG files on different operating systems

THEN the system SHALL ensure consistent PNG format across platforms

AND handle line ending differences appropriately

AND maintain file permissions and attributes consistently

AND ensure universal compatibility with PNG reading applications


MODIFIED Requirements


Requirement: Image Generation Workflow

The image generation workflow MUST include PNG format validation and correction to ensure professional software compatibility.


Scenario: End-to-end PNG processing


WHEN a user generates images through the application

THEN the generated images SHALL pass through PNG validation

AND be saved with proper PNG format compliance

AND be accessible to Adobe Photoshop and similar tools

AND maintain the existing user workflow and interface


Scenario: History record management


WHEN generation records are saved with images

THEN both generated and reference images SHALL have validated PNG format

AND the history management system SHALL handle format-corrected images

AND maintain compatibility with existing image preview functionality

AND preserve all existing metadata and user information


Scenario: Image download functionality


WHEN users download generated images

THEN the download SHALL provide format-validated PNG files

AND ensure downloaded files work with professional editing software

AND maintain existing download workflow and user interface

AND preserve the original image quality and characteristics


Requirement: Error Handling and Logging

The system MUST provide comprehensive error handling for PNG processing with detailed logging for troubleshooting.


Scenario: PNG processing errors


WHEN PNG validation or correction encounters errors

THEN the system SHALL log detailed error information

AND provide graceful fallback to original processing method

AND continue normal application operation without interruption

AND preserve the original image data for user access


Scenario: Missing dependencies handling


WHEN Pillow library is not available

THEN the system SHALL detect the missing dependency

AND automatically fall back to original byte writing

AND log the dependency absence for administrator awareness

AND continue providing all existing functionality


Scenario: Corrupted image data handling


WHEN image bytes are corrupted or invalid

THEN the system SHALL detect the corruption during validation

AND attempt to save using the original method

AND provide appropriate error messages to users if needed

AND log the corruption event for debugging purposes


Requirement: Performance Optimization

PNG format validation MUST be optimized to minimize impact on generation performance and user experience.


Scenario: Efficient PNG processing


WHEN processing images for format validation

THEN the system SHALL use optimized Pillow settings

AND minimize additional processing time for users

AND maintain responsive user interface during processing

AND provide progress feedback for longer operations


Scenario: Memory usage optimization


WHEN re-writing PNG files in memory

THEN the system SHALL optimize memory usage patterns

AND avoid unnecessary data duplication

AND properly clean up temporary objects and streams

AND maintain stable memory usage during batch operations