#!/usr/bin/env python3
"""
Example of using PyBMA400 to detect orientation changes.
This shows how to use the watcher module to detect flips between
landscape and portrait orientations.
"""
import asyncio
from pybma400 import BMA400, detect_orientation_flip, is_landscape

async def main():
    try:
        # Initialize the sensor
        sensor = BMA400()  # Default I2C bus=1, address=0x14
        print("BMA400 sensor initialized successfully!")
        
        # Start with the current orientation state
        current_state = is_landscape(sensor.acceleration)
        print(f"Initial orientation: {'Landscape' if current_state else 'Portrait'}")
        
        # Monitor for orientation changes
        while True:
            print("Monitoring for orientation changes...")
            
            # Call the detect_orientation_flip function with our sensor
            # We'll use is_landscape as our evaluation function
            new_state = await detect_orientation_flip(
                current_state=current_state,
                eval_func=is_landscape,
                flip_delay=0.5,  # Shorter delay for demonstration purposes
                sensor=sensor
            )
            
            # Update our state
            if new_state != current_state:
                current_state = new_state
                print(f"Orientation changed to: {'Landscape' if current_state else 'Portrait'}")
    
    except KeyboardInterrupt:
        print("\nMonitoring stopped by user")
    except Exception as e:
        print(f"Error: {e}")

if __name__ == "__main__":
    asyncio.run(main())