"""
Session Persistence Example
Demonstrates how conversation memory persists across sessions
"""

from agents.core.coordinator import AgentCoordinator


def example_first_session():
    """First session - user provides information"""
    print("=" * 60)
    print("SESSION 1: User provides information")
    print("=" * 60)
    
    # Create coordinator with user_id
    coordinator = AgentCoordinator(user_id="user123")
    
    # User provides information
    query1 = "Tôi 25 tuổi, nam, 70kg, 175cm, muốn giảm cân"
    response1 = coordinator.handle_query(query1, [])
    
    print(f"\nUser: {query1}")
    print(f"Bot: {response1[:200]}...")
    
    # Check what's in memory
    profile = coordinator.memory.get_full_profile()
    print(f"\n📊 Memory saved:")
    print(f"   Age: {profile['age']}")
    print(f"   Gender: {profile['gender']}")
    print(f"   Weight: {profile['weight']}kg")
    print(f"   Height: {profile['height']}cm")
    
    print("\n✅ Session saved automatically!")
    print("   (User closes app)")


def example_second_session():
    """Second session - memory is restored"""
    print("\n" + "=" * 60)
    print("SESSION 2: User returns (next day)")
    print("=" * 60)
    
    # Create NEW coordinator with SAME user_id
    # Memory will be automatically loaded!
    coordinator = AgentCoordinator(user_id="user123")
    
    # Check memory - it should be loaded!
    profile = coordinator.memory.get_full_profile()
    print(f"\n📊 Memory restored:")
    print(f"   Age: {profile['age']}")
    print(f"   Gender: {profile['gender']}")
    print(f"   Weight: {profile['weight']}kg")
    print(f"   Height: {profile['height']}cm")
    
    # User asks new question - bot remembers!
    query2 = "Tôi nên ăn bao nhiêu calo mỗi ngày?"
    response2 = coordinator.handle_query(query2, [])
    
    print(f"\nUser: {query2}")
    print(f"Bot: {response2[:200]}...")
    print("\n✅ Bot remembers user info from previous session!")


def example_different_user():
    """Different user - separate session"""
    print("\n" + "=" * 60)
    print("SESSION 3: Different user")
    print("=" * 60)
    
    # Different user_id = different session
    coordinator = AgentCoordinator(user_id="user456")
    
    profile = coordinator.memory.get_full_profile()
    print(f"\n📊 Memory for user456:")
    print(f"   Age: {profile['age']}")  # Should be None
    print(f"   Gender: {profile['gender']}")  # Should be None
    
    print("\n✅ Each user has separate session!")


def example_without_persistence():
    """Without user_id - no persistence"""
    print("\n" + "=" * 60)
    print("SESSION 4: Without persistence (no user_id)")
    print("=" * 60)
    
    # No user_id = no persistence
    coordinator = AgentCoordinator()  # No user_id
    
    print("\n⚠️  Memory will NOT persist across sessions")
    print("   (Useful for anonymous/guest users)")


if __name__ == '__main__':
    # Run examples
    example_first_session()
    example_second_session()
    example_different_user()
    example_without_persistence()
    
    print("\n" + "=" * 60)
    print("✅ Session Persistence Demo Complete!")
    print("=" * 60)