# Part of Odoo. See LICENSE file for full copyright and licensing details.

import json

from odoo import fields, models, api, _
from odoo.exceptions import UserError


class PosOrder(models.Model):
    _inherit = 'pos.order'

    delivery_status = fields.Selection([
        ('placed', 'Placed'),
        ('acknowledged', 'Acknowledged'),
        ('food_ready', 'Food Ready'),
        ('dispatched', 'Dispatched'),
        ('completed', 'Completed'),
        ('cancelled', 'Cancelled')], string='Delivery Status', help='Status of the order as provided by UrbanPiper.')
    delivery_provider_id = fields.Many2one(
        'pos.delivery.provider',
        string='Delivery Provider',
        help='Responsible delivery provider for online order, e.g., UberEats, Zomato.'
    )
    delivery_identifier = fields.Char(string='Delivery ID', help='Unique delivery ID provided by UrbanPiper.')
    delivery_json = fields.Json(string='Delivery JSON', help='JSON data of the order.', store=True)
    delivery_rider_json = fields.Json(string='Delivery Rider JSON', help='JSON data of the delivery rider.', store=True)
    prep_time = fields.Integer(
        string='Food Preparation Time',
        help='Preparation time for the food as provided by UrbanPiper.'
    )

    @api.ondelete(at_uninstall=False)
    def _unlink_except_online_order(self):
        if (self.filtered(lambda o: o.delivery_identifier)):
            raise UserError(_('Online orders cannot be deleted. If needed, reject the order instead or contact the food delivery provider.'))

    @api.model
    def _load_pos_preparation_data_fields(self):
        res = super()._load_pos_preparation_data_fields()
        return res + ['delivery_status', 'delivery_provider_id', 'delivery_identifier', 'prep_time', 'config_id']

    def mark_urbanpiper_prep_order_as_printed(self):
        self.ensure_one()
        # Lock the line
        self.env.cr.execute(
            'SELECT id FROM pos_order WHERE id = %s FOR UPDATE NOWAIT',
            (self.id,)
        )

        lopc = json.loads(self.last_order_preparation_change) if self.last_order_preparation_change else {
            'lines': {},
            'metadata': {},
        }
        if lopc.get('urbanpiper_printed', False):
            return False

        lopc['urbanpiper_printed'] = True
        self.last_order_preparation_change = json.dumps(lopc)
        return True