# -*- coding: utf-8 -*-
# Copyright 2026 Nexa Systems Inc.
# License OPL-1 (Odoo Proprietary License v1.0)
# Part of the Fusion Plating product family.

import base64
import io
import logging

from odoo import http
from odoo.http import request

_logger = logging.getLogger(__name__)


class FpConfiguratorController(http.Controller):

    @http.route('/fp/configurator/calculate_surface_area', type='jsonrpc', auth='user')
    def calculate_surface_area(self, attachment_id, **kw):
        """Calculate surface area from an uploaded STL file using trimesh."""
        attachment = request.env['ir.attachment'].browse(int(attachment_id))
        if not attachment.exists():
            return {'error': 'Attachment not found.'}

        try:
            import trimesh
        except ImportError:
            return {'error': 'trimesh library not installed. Run: pip install trimesh'}

        try:
            raw = base64.b64decode(attachment.datas)
            mesh = trimesh.load(io.BytesIO(raw), file_type='stl')

            # trimesh returns area in the file's native units (usually mm²)
            area_mm2 = mesh.area
            area_sqin = area_mm2 / 645.16  # mm² to sq in

            return {
                'surface_area': round(area_sqin, 4),
                'surface_area_mm2': round(area_mm2, 2),
                'unit': 'sq_in',
                'vertex_count': len(mesh.vertices),
                'face_count': len(mesh.faces),
                'bounding_box': {
                    'x': round(float(mesh.bounding_box.extents[0]), 2),
                    'y': round(float(mesh.bounding_box.extents[1]), 2),
                    'z': round(float(mesh.bounding_box.extents[2]), 2),
                },
            }
        except Exception as e:
            _logger.warning('STL surface area calculation failed: %s', e)
            return {'error': str(e)}