#!/usr/bin/env python
"""
Main pipeline script for running the ER model calculations.
"""
import sys
from pathlib import Path
import yaml
import click
from er_model_core.er_model import ERModel

# Add the project root to the Python path
sys.path.append(str(Path(__file__).parent.parent))


@click.command()
@click.option(
    "--config",
    type=click.Path(exists=True, path_type=Path),
    required=True,
    help="Path to YAML configuration file",
)
@click.option(
    "--output",
    type=click.Path(path_type=Path),
    default=Path("outputs/results.csv"),
    help="Path to save results CSV",
)
def main(config: Path, output: Path) -> None:
    """Run the ER model pipeline."""
    # Create output directory if it doesn't exist
    output.parent.mkdir(parents=True, exist_ok=True)
    
    # Initialize and run model
    model = ERModel(config)
    results, species_results, scenario_results = model.run()
    
    # Save results
    model.save_results(output)
    
    # Save additional results
    species_output = output.parent / "species_results.csv"
    scenario_output = output.parent / "scenario_results.csv"
    species_results.to_csv(species_output, index=False)
    scenario_results.to_csv(scenario_output, index=False)
    
    # Print summary
    print("\nResults Summary:")
    print("-" * 40)
    print(f"Total years: {len(results)}")
    print(f"Total gross carbon: {results['gross_carbon'].sum():.2f} tCO2")
    print(f"Total net carbon: {results['net_carbon'].sum():.2f} tCO2")
    print(f"\nResults saved to:")
    print(f"- Main results: {output}")
    print(f"- Species results: {species_output}")
    print(f"- Scenario results: {scenario_output}")


if __name__ == "__main__":
    main()