import numpy as np
import trimesh
from shapely.geometry import Polygon
import os
import argparse

def generate_3d_model(output_path, thickness):
    """
    The AI Agent should rewrite the contour (points) and hole (holes) generation logic here 
    based on the image dimension analysis results.
    """
    points = [] # Outer contour point set
    holes = []  # List of inner hole point sets

    # --- AI TODO: Fill in precise geometric calculations and point set generation logic here ---
    # Example:
    # t = np.linspace(0, 2*np.pi, 64)[:-1]
    # points = np.column_stack((10*np.cos(t), 10*np.sin(t)))
    # poly = Polygon(shell=points, holes=holes)
    # mesh = trimesh.creation.extrude_polygon(poly, height=thickness)
    # mesh.export(output_path)
    # print(f"STL exported successfully to {output_path}")
    
    print("Please implement the geometry logic in src/generate.py first.")

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Generate 3D STL model from 2D profile.")
    parser.add_argument("--output", type=str, default="output.stl", help="Output STL file path")
    parser.add_argument("--thickness", type=float, default=2.0, help="Extrusion thickness in mm")
    args = parser.parse_args()

    # Default output to the execution directory
    out_file = os.path.abspath(args.output)
    generate_3d_model(out_file, thickness=args.thickness)