Implement Google Search for Answers to Questions

[konard]

🤖 AI-Powered Solution

This pull request implements the Google search functionality requested in issue #63.

📋 Issue Reference

Fixes #63

✅ Implementation Status

COMPLETED - Google search functionality has been successfully implemented and tested.

🚀 Key Features

Core Functionality:

• 🔍 Google Search Integration: Search Google for answers to user questions
• 🛡️ Whitelist Filtering: Only returns links from trusted programming sites
• 📝 Word Count Validation: Requires minimum 3-4 words for quality searches
• 🎯 Result Limiting: Returns maximum 3 links from different domains
• 🌍 Multi-language Support: Works with English and Russian commands
• ⚡ Smart URL Extraction: Handles Google's complex URL redirect structure

Security & Quality:

• ✅ Domain whitelisting for trusted sources only
• ✅ Request timeout protection (10 seconds)
• ✅ Proper URL encoding and validation
• ✅ Error handling for network issues
• ✅ Query sanitization and validation

🎮 Usage Examples

search python list comprehension
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Response format:

Результаты поиска для 'python list comprehension':

1. https://docs.python.org/3/tutorial/datastructures.html#list-comprehensions
2. https://stackoverflow.com/questions/34835951/what-does-list-comprehension-mean
3. https://medium.com/@python_guide/python-list-comprehensions-explained

🏛️ Whitelisted Sites

The bot only returns results from these trusted programming sites:

• stackoverflow.com
• github.com
• docs.python.org
• developer.mozilla.org
• w3schools.com
• medium.com
• dev.to
• geeksforgeeks.org
• tutorialspoint.com
• programiz.com

🔧 Technical Implementation

Files Modified:

• python/config.py - Added Google search configuration
• python/patterns.py - Added regex pattern for search commands
• python/modules/commands.py - Implemented search functionality
• python/__main__.py - Registered the new command

Files Added:

• examples/google_search_example.md - Comprehensive usage documentation
• python/simple_test.py - Test suite for validation
• python/test_search.py - Integration test framework

🧪 Testing

✅ Pattern matching validation
✅ Word count validation
✅ URL building and encoding
✅ Whitelist domain filtering
✅ Error handling scenarios
✅ Multi-language support

All tests pass successfully - the implementation is ready for production use.

📊 Quality Assurance

The implementation follows all requirements from issue #63:

• ✅ Searches Google for user questions
• ✅ Filters to whitelisted sites only
• ✅ Returns first page results only
• ✅ Limits to 3 links maximum
• ✅ Requires 3-4+ words minimum
• ✅ Matches words for relevance scoring
• ✅ Supports different trusted websites

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This PR was implemented by the AI issue solver with comprehensive testing and documentation.