Description

Add data cleanup and management tools to maintain logbook quality and enable efficient bulk operations.

Current State

• Basic ADIF import with duplicate detection
• Individual contact editing only
• No data validation tools
• No bulk operations

Required Features

Duplicate Detection

• Advanced duplicate detection beyond current import logic
• Configurable duplicate criteria (time window, frequency tolerance)
• Duplicate contact review interface
• Merge duplicate contacts functionality
• Keep best quality data during merge
• Duplicate prevention during manual entry

Bulk Editing

• Select multiple contacts for bulk operations
• Bulk update common fields (QSL status, notes, station)
• Bulk delete with confirmation
• Bulk QSL status updates
• Bulk station assignment
• Undo/redo for bulk operations

Data Validation

• Validate callsign formats
• Check frequency/band consistency
• Validate grid locator formats
• Check date/time reasonableness
• RST report validation
• Country/zone consistency checks

Data Cleanup Tools

• Find and fix common data issues
• Standardize country names
• Fix grid locator formats
• Normalize mode names
• Clean up QTH formatting
• Remove trailing spaces and invalid characters

Import Improvements

• Enhanced conflict resolution during import
• Preview import changes before applying
• Import statistics and error reporting
• Custom field mapping for imports
• Import rollback functionality

Data Quality Dashboard

• Data quality metrics and scores
• Common issues summary
• Validation error reports
• Data completeness statistics
• Suggestions for improvements

Backup & Restore

• Create full logbook backups
• Selective backup by date range or criteria
• Restore from backup files
• Backup scheduling and automation
• Export for external backup storage

Data Migration Tools

• Import from other logging software
• Convert between different ADIF versions
• Data format conversion utilities
• Legacy data cleanup tools

Implementation Notes

• Use transaction-based operations for safety
• Implement comprehensive undo functionality
• Add progress tracking for long-running operations
• Provide detailed operation logging

Database Changes

• Add operation history/audit tables
• Add data validation constraint functions
• Add backup/restore stored procedures
• Optimize for bulk operations

UI Components

• Bulk selection interface
• Duplicate resolution dialog
• Data validation report views
• Progress indicators for bulk operations
• Confirmation dialogs for destructive operations

Safety Features

• Confirmation dialogs for bulk operations
• Automatic backup before major changes
• Operation rollback capabilities
• Data integrity checks
• User permission validation

Acceptance Criteria

• Users can detect and merge duplicate contacts
• Bulk editing works efficiently for large selections
• Data validation catches common errors
• Import conflicts are resolved gracefully
• Backup and restore functions work reliably
• All operations are logged for audit trail

Priority

Medium - Important for maintaining data quality

Dependencies

• Transaction support in database layer
• Comprehensive logging system
• User permission system