#!/usr/bin/env python3
"""
Demo showing the fix for underscore command execution
"""

def demo_underscore_command_fix():
    """Demonstrate the fix for underscore command execution"""
    
    print("🔧 FIX FOR UNDERSCORE COMMAND EXECUTION")
    print("=" * 50)
    
    product_id = "68ce9e6a1621c4a87cc441b5"
    
    print("\n❌ THE PROBLEM:")
    print("-" * 20)
    print(f"""User clicks: /product_{product_id}
Bot behavior: Command executes but returns empty/nothing
Root cause: filters.command("product") only matches "/product"
           but "/product_68ce..." is treated as a different command
""")
    
    print("\n✅ THE SOLUTION:")
    print("-" * 20)
    print(f"""Added separate regex handlers:
• filters.regex(r"^/product_[a-zA-Z0-9]+") → Catches /product_xxx
• filters.regex(r"^/stop_[a-zA-Z0-9]+") → Catches /stop_xxx

Now when user clicks: /product_{product_id}
✅ Regex handler catches it
✅ Extracts ID: {product_id}
✅ Queries database
✅ Returns product details
""")
    
    print("\n📱 HOW IT WORKS NOW:")
    print("-" * 25)
    print(f"""1. User sees: 🔍 Get details: /product_{product_id}
2. Command appears as blue clickable link
3. User clicks → /product_{product_id}
4. Pyrogram regex filter matches the pattern
5. Handler extracts ID from command name
6. Database query executed with ID
7. Product details displayed successfully!
""")
    
    print("\n🎯 TECHNICAL IMPLEMENTATION:")
    print("-" * 35)
    print("""Two handlers for each command type:

PRODUCT COMMANDS:
• @app.on_message(filters.command("product")) 
  → Handles: /product 68ce9e6a1621c4a87cc441b5
• @app.on_message(filters.regex(r"^/product_[a-zA-Z0-9]+"))
  → Handles: /product_68ce9e6a1621c4a87cc441b5

STOP COMMANDS:
• @app.on_message(filters.command("stop"))
  → Handles: /stop 68ce9e6a1621c4a87cc441b5
• @app.on_message(filters.regex(r"^/stop_[a-zA-Z0-9]+"))
  → Handles: /stop_68ce9e6a1621c4a87cc441b5
""")
    
    print("\n" + "=" * 50)
    print("✨ RESULT:")
    print("   ✅ Clickable commands work perfectly")
    print("   ✅ No more empty responses")
    print("   ✅ Full product details displayed")
    print("   ✅ Seamless user experience")
    print("   ✅ Both traditional and clickable formats supported")

if __name__ == "__main__":
    demo_underscore_command_fix()