"""
ACB v5 Usage Example
====================

Demonstrates how to use the Adaptive Circuit Breaker v5
on the Nautilus-Dolphin stack.
"""

import sys
from pathlib import Path

# Add parent to path
sys.path.insert(0, str(Path(__file__).parent.parent))

from nautilus_dolphin.nautilus_dolphin.nautilus.adaptive_circuit_breaker import (
    AdaptiveCircuitBreaker,
    ACBConfig,
    ACBPositionSizer,
    get_acb_cut_for_date
)


def example_1_basic_usage():
    """Example 1: Basic ACB usage."""
    print("=" * 70)
    print("Example 1: Basic ACB Usage")
    print("=" * 70)
    
    # Create ACB instance
    acb = AdaptiveCircuitBreaker()
    
    # Get cut for a specific date
    date_str = '2026-02-06'  # Feb 6 crash day
    cut_info = acb.get_cut_for_date(date_str)
    
    print(f"\nDate: {date_str}")
    print(f"Cut Rate: {cut_info['cut']*100:.0f}%")
    print(f"Signals Detected: {cut_info['signals']:.1f}")
    print(f"Severity: {cut_info['severity']}")
    print(f"Config Used: {cut_info['config_used']}")


def example_2_position_sizer():
    """Example 2: Using ACBPositionSizer."""
    print("\n" + "=" * 70)
    print("Example 2: ACB Position Sizer")
    print("=" * 70)
    
    # Create position sizer
    sizer = ACBPositionSizer()
    
    # Simulate position sizing for multiple days
    base_sizes = [1000.0, 1500.0, 2000.0, 1200.0, 800.0]
    dates = ['2026-02-01', '2026-02-02', '2026-02-03', '2026-02-04', '2026-02-05']
    
    print(f"\n{'Date':<12} {'Base Size':<12} {'Cut':<8} {'Final Size':<12} {'Saved':<10}")
    print("-" * 70)
    
    total_base = 0
    total_final = 0
    
    for date, base in zip(dates, base_sizes):
        final_size, acb_info = sizer.calculate_size(base, date)
        
        cut_pct = acb_info['cut'] * 100
        saved = base - final_size
        
        print(f"{date:<12} ${base:>10,.2f} {cut_pct:>6.0f}% ${final_size:>10,.2f} ${saved:>8,.2f}")
        
        total_base += base
        total_final += final_size
    
    print("-" * 70)
    print(f"{'TOTAL':<12} ${total_base:>10,.2f} {'':<8} ${total_final:>10,.2f} ${total_base - total_final:>8,.2f}")


def example_3_convenience_function():
    """Example 3: Using convenience function."""
    print("\n" + "=" * 70)
    print("Example 3: Convenience Function")
    print("=" * 70)
    
    # Quick lookup without creating instance
    dates = ['2026-01-15', '2026-02-06', '2026-02-08']
    
    print(f"\n{'Date':<12} {'Cut':<8} {'Signals':<10} {'Protection Level':<20}")
    print("-" * 70)
    
    for date in dates:
        cut_info = get_acb_cut_for_date(date)
        
        cut = cut_info['cut']
        signals = cut_info['signals']
        
        # Determine protection level
        if cut == 0:
            level = "None (Normal)"
        elif cut <= 0.15:
            level = "Light"
        elif cut <= 0.45:
            level = "Moderate"
        elif cut <= 0.55:
            level = "High (Crash)"
        else:
            level = "Extreme"
        
        print(f"{date:<12} {cut*100:>6.0f}% {signals:>8.1f}   {level:<20}")


def main():
    """Run all examples."""
    print("\n" + "=" * 70)
    print("ACB v5 - Usage Examples")
    print("=" * 70)
    
    example_1_basic_usage()
    example_2_position_sizer()
    example_3_convenience_function()
    
    print("\n" + "=" * 70)
    print("Examples Complete")
    print("=" * 70)


if __name__ == '__main__':
    main()