#!/usr/bin/env python3
"""
Migration guide: From username/password constructor to token-based authentication
This script demonstrates the difference between old and new approaches
"""

# OLD APPROACH (deprecated)
"""
from axiomtradeapi import AxiomTradeClient
import os

# This won't work anymore - constructor doesn't accept credentials
client = AxiomTradeClient(
    username=os.getenv("email"),
    password=os.getenv("password"),
)
"""

# NEW APPROACH (recommended)
from axiomtradeapi import AxiomTradeClient
import os

def old_style_example():
    """Example showing what the old style looked like"""
    print("❌ OLD STYLE (doesn't work anymore):")
    print("client = AxiomTradeClient(username='user@email.com', password='password')")
    print("This approach had security concerns and required credentials in constructor.\n")

def new_style_example():
    """Example showing the new token-based approach"""
    print("✅ NEW STYLE (recommended):")
    
    # 1. Initialize client without credentials
    client = AxiomTradeClient()
    print("1. client = AxiomTradeClient()  # No credentials needed")
    
    # 2. Option A: Login to get tokens
    print("2a. Login method:")
    print("    tokens = client.login(email, b64_password, otp_code)")
    print("    # Returns: {'access_token': '...', 'refresh_token': '...', ...}")
    
    # 2. Option B: Set existing tokens
    print("2b. Set existing tokens:")
    print("    client.set_tokens(access_token='...', refresh_token='...')")
    
    # 3. Use the API
    print("3. Use the API:")
    print("    if client.is_authenticated():")
    print("        trending = client.get_trending_tokens('1h')")
    print()

def secure_token_management():
    """Example of secure token management"""
    print("🔒 SECURE TOKEN MANAGEMENT:")
    print("# Environment variables (recommended)")
    print("client = AxiomTradeClient()")
    print("client.set_tokens(")
    print("    access_token=os.getenv('AXIOM_ACCESS_TOKEN'),")
    print("    refresh_token=os.getenv('AXIOM_REFRESH_TOKEN')")
    print(")")
    print()
    print("# Or use secure key management services:")
    print("# - AWS Secrets Manager")
    print("# - Azure Key Vault") 
    print("# - HashiCorp Vault")
    print("# - Local keyring with encryption")
    print()

def practical_example():
    """Practical example with actual client"""
    print("📋 PRACTICAL EXAMPLE:")
    
    client = AxiomTradeClient()
    
    # Simulate setting tokens from environment
    access_token = os.getenv('AXIOM_ACCESS_TOKEN', 'demo_access_token')
    refresh_token = os.getenv('AXIOM_REFRESH_TOKEN', 'demo_refresh_token')
    
    client.set_tokens(access_token=access_token, refresh_token=refresh_token)
    
    print(f"✓ Client initialized: {type(client).__name__}")
    print(f"✓ Authenticated: {client.is_authenticated()}")
    
    tokens = client.get_tokens()
    print(f"✓ Access token set: {'Yes' if tokens['access_token'] else 'No'}")
    print(f"✓ Refresh token set: {'Yes' if tokens['refresh_token'] else 'No'}")
    
    print(f"✓ Available methods: {[m for m in dir(client) if not m.startswith('_') and callable(getattr(client, m))][:5]}...")

def main():
    print("Axiom Trade API - Migration Guide")
    print("=" * 40)
    print()
    
    old_style_example()
    new_style_example()
    secure_token_management()
    practical_example()
    
    print("\n🎯 BENEFITS OF NEW APPROACH:")
    print("✓ Better security (no credentials in code)")
    print("✓ Flexible authentication (multiple token sources)")
    print("✓ Token refresh support")
    print("✓ Environment variable support")
    print("✓ Cleaner separation of concerns")
    print()
    
    print("📚 NEXT STEPS:")
    print("1. Read TOKEN_AUTHENTICATION.md for detailed documentation")
    print("2. Update your code to use the new client constructor")
    print("3. Implement secure token storage for your use case")
    print("4. Test with python token_based_example.py")

if __name__ == "__main__":
    main()
