# Task Management Spec Delta

## MODIFIED Requirements

### Requirement: Task Result Generation
The OCR service SHALL generate both JSON and Markdown result files for completed tasks with actual content, including processing track information and enhanced structure data.

#### Scenario: Markdown file contains OCR results
- **WHEN** a task completes OCR processing successfully
- **THEN** the generated `.md` file SHALL contain the extracted text in markdown format
- **AND** the file size SHALL be greater than 0 bytes
- **AND** the markdown SHALL include headings, paragraphs, and formatting based on OCR layout detection

#### Scenario: Result files stored in task directory
- **WHEN** OCR processing completes for task ID `88c6c2d2-37e1-48fd-a50f-406142987bdf`
- **THEN** result files SHALL be stored in `storage/results/88c6c2d2-37e1-48fd-a50f-406142987bdf/`
- **AND** both `<filename>_result.json` and `<filename>_result.md` SHALL exist
- **AND** both files SHALL contain valid OCR output data

#### Scenario: Include processing track in results
- **WHEN** a task completes through dual-track processing
- **THEN** the JSON result SHALL include "processing_track" field
- **AND** SHALL indicate whether "ocr" or "direct" track was used
- **AND** SHALL include track-specific metadata (confidence for OCR, extraction quality for direct)

#### Scenario: Store UnifiedDocument format
- **WHEN** processing completes through either track
- **THEN** system SHALL save results in UnifiedDocument format
- **AND** maintain backward-compatible JSON structure
- **AND** include enhanced structure from PP-StructureV3 or PyMuPDF

### Requirement: Task Detail View
The frontend SHALL provide a dedicated page for viewing individual task details with processing track information and enhanced preview capabilities.

#### Scenario: Navigate to task detail page
- **WHEN** user clicks "View Details" button on task in Task History page
- **THEN** browser SHALL navigate to `/tasks/{task_id}`
- **AND** TaskDetailPage component SHALL render

#### Scenario: Display task information
- **WHEN** TaskDetailPage loads for a valid task ID
- **THEN** page SHALL display task metadata (filename, status, processing time, confidence)
- **AND** page SHALL show markdown preview of OCR results
- **AND** page SHALL provide download buttons for JSON, Markdown, and PDF formats

#### Scenario: Download from task detail page
- **WHEN** user clicks download button for a specific format
- **THEN** browser SHALL download the file using `/api/v2/tasks/{task_id}/download/{format}` endpoint
- **AND** downloaded file SHALL contain the task's OCR results in requested format

#### Scenario: Display processing track information
- **WHEN** viewing task processed through dual-track system
- **THEN** page SHALL display processing track used (OCR or Direct)
- **AND** show track-specific metrics (OCR confidence or extraction quality)
- **AND** provide option to reprocess with alternate track if applicable

#### Scenario: Preview document structure
- **WHEN** user enables structure view
- **THEN** page SHALL display document element hierarchy
- **AND** show bounding boxes overlay on preview
- **AND** highlight different element types (headers, tables, lists) with distinct colors

## ADDED Requirements

### Requirement: Processing Track Management
The task management system SHALL track and display processing track information for all tasks.

#### Scenario: Track processing route selection
- **WHEN** a task begins processing
- **THEN** system SHALL record the selected processing track
- **AND** log the reason for track selection
- **AND** store auto-detection confidence score

#### Scenario: Allow track override
- **WHEN** user views a completed task
- **THEN** system SHALL offer option to reprocess with different track
- **AND** maintain both results for comparison
- **AND** track which result user prefers

#### Scenario: Display processing metrics
- **WHEN** task completes processing
- **THEN** system SHALL record track-specific metrics
- **AND** OCR track SHALL show confidence scores and character count
- **AND** Direct track SHALL show extraction coverage and structure quality

### Requirement: Task Processing History
The system SHALL maintain detailed processing history for tasks including track changes and reprocessing.

#### Scenario: Record reprocessing attempts
- **WHEN** a task is reprocessed with different track
- **THEN** system SHALL maintain processing history
- **AND** store results from each attempt
- **AND** allow comparison between different processing attempts

#### Scenario: Track quality improvements
- **WHEN** viewing task history
- **THEN** system SHALL show quality metrics over time
- **AND** indicate if reprocessing improved results
- **AND** suggest optimal track based on document characteristics

#### Scenario: Export processing analytics
- **WHEN** exporting task data
- **THEN** system SHALL include processing history
- **AND** provide track selection statistics
- **AND** include performance metrics for each processing attempt