Implement complete WhatsApp deleted message recovery application

[Copilot]

This PR implements a comprehensive WhatsApp deleted message recovery application that allows users to see messages that have been deleted by senders in individual chats and groups.

Overview

The application monitors WhatsApp Web in real-time, stores all incoming messages locally, and detects when messages are deleted by comparing the current state with previously stored messages. All recovered deleted messages are accessible through an intuitive GUI interface.

Key Features

🔍 Real-time Message Monitoring

• Automated WhatsApp Web interaction using Selenium WebDriver
• Continuous monitoring of active chats and groups
• Intelligent message parsing and extraction
• Background monitoring with minimal performance impact

💾 Local Message Storage

• SQLite database for efficient message storage and retrieval
• Optimized schema with proper indexing for fast queries
• Message deduplication and integrity checking
• Automatic cleanup of old messages based on retention settings

🕵️ Deletion Detection Algorithm

• Smart comparison between current and stored message states
• Accurate detection of deleted messages across all chat types
• Timestamp tracking for when messages were originally sent and deleted
• Support for various message types (text, media indicators)

🖥️ User-Friendly Interface

• Multi-tab GUI built with Tkinter for cross-platform compatibility
• Deleted Messages Tab: View all recovered messages with chat filtering
• All Chats Tab: Browse complete message history for specific conversations
• Monitor Control Tab: Easy start/stop controls with usage instructions
• Statistics Tab: Database insights and message count summaries

🔒 Privacy & Security

• 100% Local Storage: All data remains on the user's device
• No External Communication: Zero data transmission to external servers
• WhatsApp ToS Compliant: Only accesses user's own message data
• Configurable Retention: User-controlled data retention periods

Technical Implementation

Core Components

1. WhatsApp Monitor (whatsapp_monitor.py): Handles WebDriver automation, message extraction, and deletion detection
2. Database Layer (database.py): Manages SQLite operations with optimized queries and data integrity
3. GUI Interface (gui.py): Provides intuitive multi-tab interface for message viewing and system control
4. Main Application (whatsapp_recovery.py): Entry point with CLI/GUI modes and system validation
5. Configuration (config.py): Centralized settings for monitoring intervals, retention, and system behavior

Usage Examples

# Start with GUI (recommended)
python whatsapp_recovery.py

# Run in CLI mode for headless operation
python whatsapp_recovery.py --cli

# Check system requirements
python whatsapp_recovery.py --check

# Run with headless browser (no Chrome window)
python whatsapp_recovery.py --headless

Installation & Setup

The application includes comprehensive documentation and automatic dependency management:

1. Simple Installation: One-command dependency installation via requirements.txt
2. Auto-Setup: Automatic ChromeDriver installation and database initialization
3. System Validation: Built-in requirements checking and troubleshooting
4. Cross-Platform: Works on Windows, macOS, and Linux

Files Added

• whatsapp_recovery.py - Main application (259 lines)
• whatsapp_monitor.py - Core monitoring system (349 lines)
• database.py - Database operations (239 lines)
• gui.py - GUI interface (489 lines)
• config.py - Configuration settings (29 lines)
• requirements.txt - Python dependencies
• README.md - Comprehensive documentation
• .gitignore - Git ignore patterns
• LICENSE - MIT license

Quality Assurance

• Syntax Validation: All Python files pass compilation checks
• Database Testing: Message storage/retrieval functionality verified
• Dependency Management: All required packages properly specified
• Error Handling: Comprehensive logging and graceful error recovery
• Documentation: Detailed README with installation, usage, and troubleshooting guides

This implementation provides a complete, privacy-focused solution for WhatsApp message recovery that respects user privacy while delivering the core functionality requested in the issue.

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