from odoo import models, fields, api, _
import logging

_logger = logging.getLogger(__name__)

class SaleOrder(models.Model):
    _inherit = 'sale.order'

    def _add_uber_delivery_fee(self, amount):
        """Add the delivery fee using Odoo's standard delivery system to satisfy checkout validation"""
        _logger.info("Uber: Syncing delivery fee %s to order %s", amount, self.name)
        
        # 1. Ensure fulfillment type is set
        if hasattr(self, 'fulfilment_type'):
            self.write({'fulfilment_type': 'delivery'})

        # 2. Find or Create the Uber Delivery carrier
        Carrier = self.env['delivery.carrier'].sudo()
        config = self.env['uber.config'].sudo().search([('active', '=', True)], limit=1)
        
        carrier = Carrier.search([('name', 'ilike', 'Uber')], limit=1)
        if not carrier:
            # Fallback to any active carrier if no Uber one exists
            carrier = Carrier.search([('active', '=', True)], limit=1)
            
        if not carrier and config and config.delivery_product_id:
            # Create a basic Uber carrier if strictly needed
            carrier = Carrier.create({
                'name': 'Uber Delivery',
                'delivery_type': 'fixed',
                'product_id': config.delivery_product_id.id,
                'website_published': True,
            })

        if carrier:
            # 3. Use Odoo's standard method to set delivery
            # This satisfies the requirement for website_sale's 'No shipping method' check
            _logger.info("Uber: Setting carrier %s with fee %s", carrier.name, amount)
            self.sudo().set_delivery_line(carrier, amount)
            
            # Force the price again in case set_delivery_line used its own price
            delivery_line = self.order_line.filtered(lambda l: l.is_delivery)
            if delivery_line:
                delivery_line.write({
                    'price_unit': amount,
                    'name': 'Uber Delivery Fee (Distance Based)'
                })
            
            self.write({'carrier_id': carrier.id})
        else:
            _logger.warning("Uber: No delivery carrier found to apply fee")
        
        return True