import pandas as pd
import numpy as np

def create_template():
    # Create sample data similar to the internal generator
    data = []
    
    # Add Substation
    data.append({
        'Type': 'Substation',
        'ID': 'Sub1',
        'X': 4000,
        'Y': -800,
        'Power': 0
    })
    
    # Add Turbines (Grid layout)
    n_turbines = 30
    spacing = 800
    n_cols = 6
    
    for i in range(n_turbines):
        row = i // n_cols
        col = i % n_cols
        x = col * spacing
        y = row * spacing
        data.append({
            'Type': 'Turbine',
            'ID': i,
            'X': x,
            'Y': y,
            'Power': np.random.uniform(6.0, 10.0)
        })
        
    df = pd.DataFrame(data)
    
    # Save to Excel
    output_file = 'coordinates.xlsx'
    df.to_excel(output_file, index=False)
    print(f"Created sample file: {output_file}")

if __name__ == "__main__":
    create_template()