hunk.code_window:                 <field name="user_id"/>
                   <field name="partner_id"/>
                   <field name="session_id"/>
                   <field name="lines" string="Product" filter_domain="[('lines.product_id', 'ilike', self)]"/>
                   <filter string="Invoiced" name="invoiced" domain="[('state', '=', 'invoiced')]"/>
                   <filter string="Posted" name="posted" domain="[('state', '=', 'done')]"/>
  
hunk.labels: keep keep add keep keep keep
hunk.after_edit:                 <field name="config_id"/>
  
hunk.file_path: addons/point_of_sale/views/pos_order_view.xml
hunk.type: add
file: # -*- coding: utf-8 -*-
  # Part of Odoo. See LICENSE file for full copyright and licensing details.
  import logging
  from datetime import datetime
  from markupsafe import Markup
  from functools import partial
  from itertools import groupby
  from collections import defaultdict
  from markupsafe import escape
  
  import psycopg2
  import pytz
  import re
  
  from odoo import api, fields, models, tools, _
  from odoo.tools import float_is_zero, float_round, float_repr, float_compare
  from odoo.exceptions import ValidationError, UserError
  from odoo.osv.expression import AND
  import base64
  
  _logger = logging.getLogger(__name__)
  
  
  class PosOrder(models.Model):
      _name = "pos.order"
      _inherit = ["portal.mixin"]
      _description = "Point of Sale Orders"
      _order = "date_order desc, name desc, id desc"
  
      @api.model
      def _amount_line_tax(self, line, fiscal_position_id):
          taxes = line.tax_ids.filtered_domain(self.env['account.tax']._check_company_domain(line.order_id.company_id))
          taxes = fiscal_position_id.map_tax(taxes)
          price = line.price_unit * (1 - (line.discount or 0.0) / 100.0)
          taxes = taxes.compute_all(price, line.order_id.currency_id, line.qty, product=line.product_id, partner=line.order_id.partner_id or False)['taxes']
          return sum(tax.get('amount', 0.0) for tax in taxes)
  
      @api.model
      def _order_fields(self, ui_order):
          process_line = partial(self.env['pos.order.line']._order_line_fields, session_id=ui_order['pos_session_id'])
          return {
              'user_id':      ui_order['user_id'] or False,
              'session_id':   ui_order['pos_session_id'],
              'lines':        [process_line(l) for l in ui_order['lines']] if ui_order['lines'] else False,
              'pos_reference': ui_order['name'],
              'sequence_number': ui_order['sequence_number'],
              'partner_id':   ui_order['partner_id'] or False,
              'date_order':   ui_order['date_order'].replace('T', ' ')[:19],
              'fiscal_position_id': ui_order['fiscal_position_id'],
              'pricelist_id': ui_order.get('pricelist_id'),
              'amount_paid':  ui_order['amount_paid'],
              'amount_total':  ui_order['amount_total'],
              'amount_tax':  ui_order['amount_tax'],
              'amount_return':  ui_order['amount_return'],
              'company_id': self.env['pos.session'].browse(ui_order['pos_session_id']).company_id.id,
              'to_invoice': ui_order['to_invoice'] if "to_invoice" in ui_order else False,
              'shipping_date': ui_order['shipping_date'] if "shipping_date" in ui_order else False,
              'is_tipped': ui_order.get('is_tipped', False),
              'tip_amount': ui_order.get('tip_amount', 0),
              'access_token': ui_order.get('access_token', ''),
              'ticket_code': ui_order.get('ticket_code', ''),
              'last_order_preparation_change': ui_order.get('last_order_preparation_change', '{}'),
          }
  
      @api.model
      def _payment_fields(self, order, ui_paymentline):
          return {
              'amount': ui_paymentline['amount'] or 0.0,
              'payment_date': ui_paymentline['name'],
              'payment_method_id': ui_paymentline['payment_method_id'],
              'card_type': ui_paymentline.get('card_type'),
              'cardholder_name': ui_paymentline.get('cardholder_name'),
              'transaction_id': ui_paymentline.get('transaction_id'),
              'payment_status': ui_paymentline.get('payment_status'),
              'ticket': ui_paymentline.get('ticket'),
              'pos_order_id': order.id,
          }
  
      # This deals with orders that belong to a closed session. In order
      # to recover from this situation we create a new rescue session,
      # making it obvious that something went wrong.
      # A new, separate, rescue session is preferred for every such recovery,
      # to avoid adding unrelated orders to live sessions.
      def _get_valid_session(self, order):
          PosSession = self.env['pos.session']
          closed_session = PosSession.browse(order['pos_session_id'])
  
          _logger.warning('session %s (ID: %s) was closed but received order %s (total: %s) belonging to it',
                          closed_session.name,
                          closed_session.id,
                          order['name'],
                          order['amount_total'])
          rescue_session = PosSession.search([
              ('state', 'not in', ('closed', 'closing_control')),
              ('rescue', '=', True),
              ('config_id', '=', closed_session.config_id.id),
          ], limit=1)
          if rescue_session:
              _logger.warning('reusing recovery session %s for saving order %s', rescue_session.name, order['name'])
              return rescue_session
  
          _logger.warning('attempting to create recovery session for saving order %s', order['name'])
          new_session = PosSession.create({
              'config_id': closed_session.config_id.id,
              'name': _('(RESCUE FOR %(session)s)') % {'session': closed_session.name},
              'rescue': True,  # avoid conflict with live sessions
          })
          # bypass opening_control (necessary when using cash control)
          new_session.action_pos_session_open()
          if new_session.config_id.cash_control and new_session.rescue:
              last_session = self.env['pos.session'].search([('config_id', '=', new_session.config_id.id), ('id', '!=', new_session.id)], limit=1)
              new_session.cash_register_balance_start = last_session.cash_register_balance_end_real
  
          return new_session
  
      @api.depends('sequence_number', 'session_id')
      def _compute_tracking_number(self):
          for record in self:
              record.tracking_number = str((record.session_id.id % 10) * 100 + record.sequence_number % 100).zfill(3)
  
      @api.model
      def _process_order(self, order, draft, existing_order):
          """Create or update an pos.order from a given dictionary.
  
          :param dict order: dictionary representing the order.
          :param bool draft: Indicate that the pos_order is not validated yet.
          :param existing_order: order to be updated or False.
          :type existing_order: pos.order.
          :returns: id of created/updated pos.order
          :rtype: int
          """
          order = order['data']
          pos_session = self.env['pos.session'].browse(order['pos_session_id'])
          if pos_session.state == 'closing_control' or pos_session.state == 'closed':
              order['pos_session_id'] = self._get_valid_session(order).id
  
          if order.get('partner_id'):
              partner_id = self.env['res.partner'].browse(order['partner_id'])
              if not partner_id.exists():
                  order.update({
                      "partner_id": False,
                      "to_invoice": False,
                  })
          pos_order = False
          if not existing_order:
              pos_order = self.create(self._order_fields(order))
          else:
              pos_order = existing_order
              pos_order.lines.unlink()
              order['user_id'] = pos_order.user_id.id
              pos_order.write(self._order_fields(order))
  
          pos_order._link_combo_items(order)
          pos_order = pos_order.with_company(pos_order.company_id)
          self = self.with_company(pos_order.company_id)
          self._process_payment_lines(order, pos_order, pos_session, draft)
          return pos_order._process_saved_order(draft)
  
      def _link_combo_items(self, order_vals):
          self.ensure_one()
  
          lines = [l[2] for l in order_vals['lines'] if l[2].get('combo_parent_id') or l[2].get('combo_line_ids')]
          uuid_by_cid = {line['id']: line['uuid'] for line in lines}
          line_by_uuid = {line.uuid: line for line in  self.lines.filtered_domain([("uuid", "in", [line['uuid'] for line in lines])])}
  
          for line in lines:
              if line.get('combo_parent_id'):
                  line_by_uuid[line['uuid']].combo_parent_id = line_by_uuid[uuid_by_cid[line['combo_parent_id']]]
  
      def _process_saved_order(self, draft):
          self.ensure_one()
          if not draft:
              try:
                  self.action_pos_order_paid()
              except psycopg2.DatabaseError:
                  # do not hide transactional errors, the order(s) won't be saved!
                  raise
              except Exception as e:
                  _logger.error('Could not fully process the POS Order: %s', tools.ustr(e))
              self._create_order_picking()
              self._compute_total_cost_in_real_time()
  
          if self.to_invoice and self.state == 'paid':
              self._generate_pos_order_invoice()
  
          return self.id
  
      def _clean_payment_lines(self):
          self.ensure_one()
          self.payment_ids.unlink()
  
      def _process_payment_lines(self, pos_order, order, pos_session, draft):
          """Create account.bank.statement.lines from the dictionary given to the parent function.
  
          If the payment_line is an updated version of an existing one, the existing payment_line will first be
          removed before making a new one.
          :param pos_order: dictionary representing the order.
          :type pos_order: dict.
          :param order: Order object the payment lines should belong to.
          :type order: pos.order
          :param pos_session: PoS session the order was created in.
          :type pos_session: pos.session
          :param draft: Indicate that the pos_order is not validated yet.
          :type draft: bool.
          """
          prec_acc = order.currency_id.decimal_places
  
          order._clean_payment_lines()
          for payments in pos_order['statement_ids']:
              order.add_payment(self._payment_fields(order, payments[2]))
  
          order.amount_paid = sum(order.payment_ids.mapped('amount'))
  
          if not draft and not float_is_zero(pos_order['amount_return'], prec_acc):
              cash_payment_method = pos_session.payment_method_ids.filtered('is_cash_count')[:1]
              if not cash_payment_method:
                  raise UserError(_("No cash statement found for this session. Unable to record returned cash."))
              return_payment_vals = {
                  'name': _('return'),
                  'pos_order_id': order.id,
                  'amount': -pos_order['amount_return'],
                  'payment_date': fields.Datetime.now(),
                  'payment_method_id': cash_payment_method.id,
                  'is_change': True,
              }
              order.add_payment(return_payment_vals)
  
      def _prepare_invoice_line(self, order_line):
          #apply customer language on invoice
          name = order_line.product_id.with_context(lang=order_line.order_id.partner_id.lang or self.env.user.lang).get_product_multiline_description_sale()
          return {
              'product_id': order_line.product_id.id,
              'quantity': order_line.qty if self.amount_total >= 0 else -order_line.qty,
              'discount': order_line.discount,
              'price_unit': order_line.price_unit,
              'name': name,
              'tax_ids': [(6, 0, order_line.tax_ids_after_fiscal_position.ids)],
              'product_uom_id': order_line.product_uom_id.id,
          }
  
      def _prepare_invoice_lines(self):
          invoice_lines = []
          for line in self.lines:
              invoice_lines.append((0, None, self._prepare_invoice_line(line)))
              if line.order_id.pricelist_id.discount_policy == 'without_discount' and float_compare(line.price_unit, line.product_id.lst_price, precision_rounding=self.currency_id.rounding) < 0:
                  invoice_lines.append((0, None, {
                      'name': _('Price discount from %s -> %s',
                                float_repr(line.product_id.lst_price, self.currency_id.decimal_places),
                                float_repr(line.price_unit, self.currency_id.decimal_places)),
                      'display_type': 'line_note',
                  }))
              if line.customer_note:
                  invoice_lines.append((0, None, {
                      'name': line.customer_note,
                      'display_type': 'line_note',
                  }))
  
  
          return invoice_lines
  
      def _get_pos_anglo_saxon_price_unit(self, product, partner_id, quantity):
          moves = self.filtered(lambda o: o.partner_id.id == partner_id)\
              .mapped('picking_ids.move_ids')\
              ._filter_anglo_saxon_moves(product)\
              .sorted(lambda x: x.date)
          price_unit = product.with_company(self.company_id)._compute_average_price(0, quantity, moves)
          return price_unit
  
      name = fields.Char(string='Order Ref', required=True, readonly=True, copy=False, default='/')
      last_order_preparation_change = fields.Char(string='Last preparation change', help="Last printed state of the order")
      date_order = fields.Datetime(string='Date', readonly=True, index=True, default=fields.Datetime.now)
      user_id = fields.Many2one(
          comodel_name='res.users', string='Responsible',
          help="Person who uses the cash register. It can be a reliever, a student or an interim employee.",
          default=lambda self: self.env.uid,
      )
      amount_tax = fields.Float(string='Taxes', digits=0, readonly=True, required=True)
      amount_total = fields.Float(string='Total', digits=0, readonly=True, required=True)
      amount_paid = fields.Float(string='Paid', digits=0, required=True)
      amount_return = fields.Float(string='Returned', digits=0, required=True, readonly=True)
      margin = fields.Monetary(string="Margin", compute='_compute_margin')
      margin_percent = fields.Float(string="Margin (%)", compute='_compute_margin', digits=(12, 4))
      is_total_cost_computed = fields.Boolean(compute='_compute_is_total_cost_computed',
          help="Allows to know if all the total cost of the order lines have already been computed")
      lines = fields.One2many('pos.order.line', 'order_id', string='Order Lines', copy=True)
      company_id = fields.Many2one('res.company', string='Company', required=True, readonly=True)
      pricelist_id = fields.Many2one('product.pricelist', string='Pricelist')
      partner_id = fields.Many2one('res.partner', string='Customer', change_default=True, index='btree_not_null')
      sequence_number = fields.Integer(string='Sequence Number', help='A session-unique sequence number for the order', default=1)
  
      session_id = fields.Many2one(
          'pos.session', string='Session', required=True, index=True,
          domain="[('state', '=', 'opened')]")
      config_id = fields.Many2one('pos.config', related='session_id.config_id', string="Point of Sale", readonly=False)
      currency_id = fields.Many2one('res.currency', related='config_id.currency_id', string="Currency")
      currency_rate = fields.Float("Currency Rate", compute='_compute_currency_rate', compute_sudo=True, store=True, digits=0, readonly=True,
          help='The rate of the currency to the currency of rate applicable at the date of the order')
  
      state = fields.Selection(
          [('draft', 'New'), ('cancel', 'Cancelled'), ('paid', 'Paid'), ('done', 'Posted'), ('invoiced', 'Invoiced')],
          'Status', readonly=True, copy=False, default='draft', index=True)
  
      account_move = fields.Many2one('account.move', string='Invoice', readonly=True, copy=False, index="btree_not_null")
      picking_ids = fields.One2many('stock.picking', 'pos_order_id')
      picking_count = fields.Integer(compute='_compute_picking_count')
      failed_pickings = fields.Boolean(compute='_compute_picking_count')
      picking_type_id = fields.Many2one('stock.picking.type', related='session_id.config_id.picking_type_id', string="Operation Type", readonly=False)
      procurement_group_id = fields.Many2one('procurement.group', 'Procurement Group', copy=False)
  
      note = fields.Text(string='Internal Notes')
      nb_print = fields.Integer(string='Number of Print', readonly=True, copy=False, default=0)
      pos_reference = fields.Char(string='Receipt Number', readonly=True, copy=False)
      sale_journal = fields.Many2one('account.journal', related='session_id.config_id.journal_id', string='Sales Journal', store=True, readonly=True, ondelete='restrict')
      fiscal_position_id = fields.Many2one(
          comodel_name='account.fiscal.position', string='Fiscal Position',
          readonly=False,
      )
      payment_ids = fields.One2many('pos.payment', 'pos_order_id', string='Payments', readonly=True)
      session_move_id = fields.Many2one('account.move', string='Session Journal Entry', related='session_id.move_id', readonly=True, copy=False)
      to_invoice = fields.Boolean('To invoice', copy=False)
      shipping_date = fields.Date('Shipping Date')
      is_invoiced = fields.Boolean('Is Invoiced', compute='_compute_is_invoiced')
      is_tipped = fields.Boolean('Is this already tipped?', readonly=True)
      tip_amount = fields.Float(string='Tip Amount', digits=0, readonly=True)
      refund_orders_count = fields.Integer('Number of Refund Orders', compute='_compute_refund_related_fields')
      is_refunded = fields.Boolean(compute='_compute_refund_related_fields')
      refunded_order_ids = fields.Many2many('pos.order', compute='_compute_refund_related_fields')
      has_refundable_lines = fields.Boolean('Has Refundable Lines', compute='_compute_has_refundable_lines')
      refunded_orders_count = fields.Integer(compute='_compute_refund_related_fields')
      ticket_code = fields.Char(help='5 digits alphanumeric code to be used by portal user to request an invoice')
      tracking_number = fields.Char(string="Tracking Number", compute='_compute_tracking_number')
  
      @api.depends('lines.refund_orderline_ids', 'lines.refunded_orderline_id')
      def _compute_refund_related_fields(self):
          for order in self:
              order.refund_orders_count = len(order.mapped('lines.refund_orderline_ids.order_id'))
              order.is_refunded = order.refund_orders_count > 0
              order.refunded_order_ids = order.mapped('lines.refunded_orderline_id.order_id')
              order.refunded_orders_count = len(order.refunded_order_ids)
  
      @api.depends('lines.refunded_qty', 'lines.qty')
      def _compute_has_refundable_lines(self):
          digits = self.env['decimal.precision'].precision_get('Product Unit of Measure')
          for order in self:
              order.has_refundable_lines = any([float_compare(line.qty, line.refunded_qty, digits) > 0 for line in order.lines])
  
      @api.depends('account_move')
      def _compute_is_invoiced(self):
          for order in self:
              order.is_invoiced = bool(order.account_move)
  
      @api.depends('picking_ids', 'picking_ids.state')
      def _compute_picking_count(self):
          for order in self:
              order.picking_count = len(order.picking_ids)
              order.failed_pickings = bool(order.picking_ids.filtered(lambda p: p.state != 'done'))
  
      @api.depends('date_order', 'company_id', 'currency_id', 'company_id.currency_id')
      def _compute_currency_rate(self):
          for order in self:
              order.currency_rate = self.env['res.currency']._get_conversion_rate(order.company_id.currency_id, order.currency_id, order.company_id, order.date_order)
  
      @api.depends('lines.is_total_cost_computed')
      def _compute_is_total_cost_computed(self):
          for order in self:
              order.is_total_cost_computed = not False in order.lines.mapped('is_total_cost_computed')
  
      def _compute_total_cost_in_real_time(self):
          """
          Compute the total cost of the order when it's processed by the server. It will compute the total cost of all the lines
          if it's possible. If a margin of one of the order's lines cannot be computed (because of session_id.update_stock_at_closing),
          then the margin of said order is not computed (it will be computed when closing the session).
          """
          for order in self:
              lines = order.lines
              if not order._should_create_picking_real_time():
                  storable_fifo_avco_lines = lines.filtered(lambda l: l._is_product_storable_fifo_avco())
                  lines -= storable_fifo_avco_lines
              stock_moves = order.picking_ids.move_ids
              lines._compute_total_cost(stock_moves)
  
      def _compute_total_cost_at_session_closing(self, stock_moves):
          """
          Compute the margin at the end of the session. This method should be called to compute the remaining lines margin
          containing a storable product with a fifo/avco cost method and then compute the order margin
          """
          for order in self:
              storable_fifo_avco_lines = order.lines.filtered(lambda l: l._is_product_storable_fifo_avco())
              storable_fifo_avco_lines._compute_total_cost(stock_moves)
  
      @api.depends('lines.margin', 'is_total_cost_computed')
      def _compute_margin(self):
          for order in self:
              if order.is_total_cost_computed:
                  order.margin = sum(order.lines.mapped('margin'))
                  amount_untaxed = order.currency_id.round(sum(line.price_subtotal for line in order.lines))
                  order.margin_percent = not float_is_zero(amount_untaxed, precision_rounding=order.currency_id.rounding) and order.margin / amount_untaxed or 0
              else:
                  order.margin = 0
                  order.margin_percent = 0
  
      @api.onchange('payment_ids', 'lines')
      def _onchange_amount_all(self):
          for order in self:
              if not order.currency_id:
                  raise UserError(_("You can't: create a pos order from the backend interface, or unset the pricelist, or create a pos.order in a python test with Form tool, or edit the form view in studio if no PoS order exist"))
              currency = order.currency_id
              order.amount_paid = sum(payment.amount for payment in order.payment_ids)
              order.amount_return = sum(payment.amount < 0 and payment.amount or 0 for payment in order.payment_ids)
              order.amount_tax = currency.round(sum(self._amount_line_tax(line, order.fiscal_position_id) for line in order.lines))
              amount_untaxed = currency.round(sum(line.price_subtotal for line in order.lines))
              order.amount_total = order.amount_tax + amount_untaxed
  
      def _compute_batch_amount_all(self):
          """
          Does essentially the same thing as `_onchange_amount_all` but only for actually existing records
          It is intended as a helper method , not as a business one
          Practical to be used for migrations
          """
          amounts = {order_id: {'paid': 0, 'return': 0, 'taxed': 0, 'taxes': 0} for order_id in self.ids}
          for pos_order, amount in self.env['pos.payment']._read_group([('pos_order_id', 'in', self.ids)], ['pos_order_id'], ['amount:sum']):
              amounts[pos_order.id]['paid'] = amount
          for pos_order, amount in self.env['pos.payment']._read_group(['&', ('pos_order_id', 'in', self.ids), ('amount', '<', 0)], ['pos_order_id'], ['amount:sum']):
              amounts[pos_order.id]['return'] = amount
          for order, price_subtotal, price_subtotal_incl in self.env['pos.order.line']._read_group([('order_id', 'in', self.ids)], ['order_id'], ['price_subtotal:sum', 'price_subtotal_incl:sum']):
              amounts[order.id]['taxed'] = price_subtotal_incl
              amounts[order.id]['taxes'] = price_subtotal_incl - price_subtotal
  
          for order in self:
              order.write({
                  'amount_paid': amounts[order.id]['paid'],
                  'amount_return': amounts[order.id]['return'],
                  'amount_tax': order.currency_id.round(amounts[order.id]['taxes']),
                  'amount_total': order.currency_id.round(amounts[order.id]['taxed'])
              })
  
      @api.onchange('partner_id')
      def _onchange_partner_id(self):
          if self.partner_id:
              self.pricelist_id = self.partner_id.property_product_pricelist.id
  
      @api.ondelete(at_uninstall=False)
      def _unlink_except_draft_or_cancel(self):
          for pos_order in self.filtered(lambda pos_order: pos_order.state not in ['draft', 'cancel']):
              raise UserError(_('In order to delete a sale, it must be new or cancelled.'))
  
      @api.model_create_multi
      def create(self, vals_list):
          for vals in vals_list:
              session = self.env['pos.session'].browse(vals['session_id'])
              vals = self._complete_values_from_session(session, vals)
          return super().create(vals_list)
  
      @api.model
      def _complete_values_from_session(self, session, values):
          if values.get('state') and values['state'] == 'paid' and not values.get('name'):
              values['name'] = self._compute_order_name()
          values.setdefault('pricelist_id', session.config_id.pricelist_id.id)
          values.setdefault('fiscal_position_id', session.config_id.default_fiscal_position_id.id)
          values.setdefault('company_id', session.config_id.company_id.id)
          return values
  
      def write(self, vals):
          for order in self:
              if vals.get('state') and vals['state'] == 'paid' and order.name == '/':
                  vals['name'] = self._compute_order_name()
          return super(PosOrder, self).write(vals)
  
      def _compute_order_name(self):
          if len(self.refunded_order_ids) != 0:
              return ','.join(self.refunded_order_ids.mapped('name')) + _(' REFUND')
          else:
              return self.session_id.config_id.sequence_id._next()
  
      def action_stock_picking(self):
          self.ensure_one()
          action = self.env['ir.actions.act_window']._for_xml_id('stock.action_picking_tree_ready')
          action['display_name'] = _('Pickings')
          action['context'] = {}
          action['domain'] = [('id', 'in', self.picking_ids.ids)]
          return action
  
      def action_view_invoice(self):
          return {
              'name': _('Customer Invoice'),
              'view_mode': 'form',
              'view_id': self.env.ref('account.view_move_form').id,
              'res_model': 'account.move',
              'context': "{'move_type':'out_invoice'}",
              'type': 'ir.actions.act_window',
              'res_id': self.account_move.id,
          }
  
      def action_view_refund_orders(self):
          return {
              'name': _('Refund Orders'),
              'view_mode': 'tree,form',
              'res_model': 'pos.order',
              'type': 'ir.actions.act_window',
              'domain': [('id', 'in', self.mapped('lines.refund_orderline_ids.order_id').ids)],
          }
  
      def action_view_refunded_orders(self):
          return {
              'name': _('Refunded Orders'),
              'view_mode': 'tree,form',
              'res_model': 'pos.order',
              'type': 'ir.actions.act_window',
              'domain': [('id', 'in', self.refunded_order_ids.ids)],
          }
  
      def _is_pos_order_paid(self):
          return float_is_zero(self._get_rounded_amount(self.amount_total) - self.amount_paid, precision_rounding=self.currency_id.rounding)
  
      def _get_rounded_amount(self, amount):
          # TODO: add support for mix of cash and non-cash payments when both cash_rounding and only_round_cash_method are True
          if self.config_id.cash_rounding \
             and (not self.config_id.only_round_cash_method \
             or any(p.payment_method_id.is_cash_count for p in self.payment_ids)):
              amount = float_round(amount, precision_rounding=self.config_id.rounding_method.rounding, rounding_method=self.config_id.rounding_method.rounding_method)
          currency = self.currency_id
          return currency.round(amount) if currency else amount
  
      def _get_partner_bank_id(self):
          bank_partner_id = False
          has_pay_later = any(not pm.journal_id for pm in self.payment_ids.mapped('payment_method_id'))
          if has_pay_later:
              if self.amount_total <= 0 and self.partner_id.bank_ids:
                  bank_partner_id = self.partner_id.bank_ids[0].id
              elif self.amount_total >= 0 and self.company_id.partner_id.bank_ids:
                  bank_partner_id = self.company_id.partner_id.bank_ids[0].id
          return bank_partner_id
  
      def _create_invoice(self, move_vals):
          self.ensure_one()
          new_move = self.env['account.move'].sudo().with_company(self.company_id).with_context(default_move_type=move_vals['move_type']).create(move_vals)
          message = escape(_("This invoice has been created from the point of sale session: %s")) % \
              self._get_html_link()
  
          new_move.message_post(body=message)
          if self.config_id.cash_rounding:
              rounding_applied = float_round(self.amount_paid - self.amount_total,
                                             precision_rounding=new_move.currency_id.rounding)
              rounding_line = new_move.line_ids.filtered(lambda line: line.display_type == 'rounding')
              if rounding_line and rounding_line.debit > 0:
                  rounding_line_difference = rounding_line.debit + rounding_applied
              elif rounding_line and rounding_line.credit > 0:
                  rounding_line_difference = -rounding_line.credit + rounding_applied
              else:
                  rounding_line_difference = rounding_applied
              if rounding_applied:
                  if rounding_applied > 0.0:
                      account_id = new_move.invoice_cash_rounding_id.loss_account_id.id
                  else:
                      account_id = new_move.invoice_cash_rounding_id.profit_account_id.id
                  if rounding_line:
                      if rounding_line_difference:
                          rounding_line.with_context(skip_invoice_sync=True, check_move_validity=False).write({
                              'debit': rounding_applied < 0.0 and -rounding_applied or 0.0,
                              'credit': rounding_applied > 0.0 and rounding_applied or 0.0,
                              'account_id': account_id,
                              'price_unit': rounding_applied,
                          })
  
                  else:
                      self.env['account.move.line'].with_context(skip_invoice_sync=True, check_move_validity=False).create({
                          'balance': -rounding_applied,
                          'quantity': 1.0,
                          'partner_id': new_move.partner_id.id,
                          'move_id': new_move.id,
                          'currency_id': new_move.currency_id.id,
                          'company_id': new_move.company_id.id,
                          'company_currency_id': new_move.company_id.currency_id.id,
                          'display_type': 'rounding',
                          'sequence': 9999,
                          'name': self.config_id.rounding_method.name,
                          'account_id': account_id,
                      })
              else:
                  if rounding_line:
                      rounding_line.with_context(skip_invoice_sync=True, check_move_validity=False).unlink()
              if rounding_line_difference:
                  existing_terms_line = new_move.line_ids.filtered(
                      lambda line: line.account_id.account_type in ('asset_receivable', 'liability_payable'))
                  if existing_terms_line.debit > 0:
                      existing_terms_line_new_val = float_round(
                          existing_terms_line.debit + rounding_line_difference,
                          precision_rounding=new_move.currency_id.rounding)
                  else:
                      existing_terms_line_new_val = float_round(
                          -existing_terms_line.credit + rounding_line_difference,
                          precision_rounding=new_move.currency_id.rounding)
                  existing_terms_line.with_context(skip_invoice_sync=True).write({
                      'debit': existing_terms_line_new_val > 0.0 and existing_terms_line_new_val or 0.0,
                      'credit': existing_terms_line_new_val < 0.0 and -existing_terms_line_new_val or 0.0,
                  })
          return new_move
  
      def action_pos_order_paid(self):
          self.ensure_one()
  
          # TODO: add support for mix of cash and non-cash payments when both cash_rounding and only_round_cash_method are True
          if not self.config_id.cash_rounding \
             or self.config_id.only_round_cash_method \
             and not any(p.payment_method_id.is_cash_count for p in self.payment_ids):
              total = self.amount_total
          else:
              total = float_round(self.amount_total, precision_rounding=self.config_id.rounding_method.rounding, rounding_method=self.config_id.rounding_method.rounding_method)
  
          isPaid = float_is_zero(total - self.amount_paid, precision_rounding=self.currency_id.rounding)
  
          if not isPaid and not self.config_id.cash_rounding:
              raise UserError(_("Order %s is not fully paid.", self.name))
          elif not isPaid and self.config_id.cash_rounding:
              currency = self.currency_id
              if self.config_id.rounding_method.rounding_method == "HALF-UP":
                  maxDiff = currency.round(self.config_id.rounding_method.rounding / 2)
              else:
                  maxDiff = currency.round(self.config_id.rounding_method.rounding)
  
              diff = currency.round(self.amount_total - self.amount_paid)
              if not abs(diff) <= maxDiff:
                  raise UserError(_("Order %s is not fully paid.", self.name))
  
          self.write({'state': 'paid'})
  
          return True
  
      def _prepare_invoice_vals(self):
          self.ensure_one()
          timezone = pytz.timezone(self._context.get('tz') or self.env.user.tz or 'UTC')
          invoice_date = fields.Datetime.now() if self.session_id.state == 'closed' else self.date_order
          pos_refunded_invoice_ids = []
          for orderline in self.lines:
              if orderline.refunded_orderline_id and orderline.refunded_orderline_id.order_id.account_move:
                  pos_refunded_invoice_ids.append(orderline.refunded_orderline_id.order_id.account_move.id)
          vals = {
              'invoice_origin': self.name,
              'pos_refunded_invoice_ids': pos_refunded_invoice_ids,
              'journal_id': self.session_id.config_id.invoice_journal_id.id,
              'move_type': 'out_invoice' if self.amount_total >= 0 else 'out_refund',
              'ref': self.name,
              'partner_id': self.partner_id.id,
              'partner_bank_id': self._get_partner_bank_id(),
              'currency_id': self.currency_id.id,
              'invoice_user_id': self.user_id.id,
              'invoice_date': invoice_date.astimezone(timezone).date(),
              'fiscal_position_id': self.fiscal_position_id.id,
              'invoice_line_ids': self._prepare_invoice_lines(),
              'invoice_payment_term_id': self.partner_id.property_payment_term_id.id or False,
              'invoice_cash_rounding_id': self.config_id.rounding_method.id
              if self.config_id.cash_rounding and (not self.config_id.only_round_cash_method or any(p.payment_method_id.is_cash_count for p in self.payment_ids))
              else False
          }
          if self.refunded_order_ids.account_move:
              vals['ref'] = _('Reversal of: %s', self.refunded_order_ids.account_move.name)
              vals['reversed_entry_id'] = self.refunded_order_ids.account_move.id
          if self.note:
              vals.update({'narration': self.note})
          return vals
  
      def _prepare_aml_values_list_per_nature(self):
          self.ensure_one()
          sign = 1 if self.amount_total < 0 else -1
          commercial_partner = self.partner_id.commercial_partner_id
          company_currency = self.company_id.currency_id
          rate = self.currency_id._get_conversion_rate(self.currency_id, company_currency, self.company_id, self.date_order)
  
          # Concert each order line to a dictionary containing business values. Also, prepare for taxes computation.
          base_line_vals_list = []
          for line in self.lines.with_company(self.company_id):
              account = line.product_id._get_product_accounts()['income']
              if not account:
                  raise UserError(_(
                      "Please define income account for this product: '%s' (id:%d).",
                      line.product_id.name, line.product_id.id,
                  ))
  
              if self.fiscal_position_id:
                  account = self.fiscal_position_id.map_account(account)
  
              is_refund = line.qty * line.price_unit < 0
  
              base_line_vals_list.append(self.env['account.tax']._convert_to_tax_base_line_dict(
                  line,
                  partner=commercial_partner,
                  currency=self.currency_id,
                  product=line.product_id,
                  taxes=line.tax_ids_after_fiscal_position,
                  price_unit=line.price_unit,
                  quantity=sign * line.qty,
                  discount=line.discount,
                  account=account,
                  is_refund=is_refund,
              ))
  
          tax_results = self.env['account.tax']._compute_taxes(base_line_vals_list)
  
          total_balance = 0.0
          total_amount_currency = 0.0
          aml_vals_list_per_nature = defaultdict(list)
  
          # Create the tax lines
          for tax_line_vals in tax_results['tax_lines_to_add']:
              tax_rep = self.env['account.tax.repartition.line'].browse(tax_line_vals['tax_repartition_line_id'])
              amount_currency = tax_line_vals['tax_amount']
              balance = company_currency.round(amount_currency * rate)
              aml_vals_list_per_nature['tax'].append({
                  'name': tax_rep.tax_id.name,
                  'account_id': tax_line_vals['account_id'],
                  'partner_id': tax_line_vals['partner_id'],
                  'currency_id': tax_line_vals['currency_id'],
                  'tax_repartition_line_id': tax_line_vals['tax_repartition_line_id'],
                  'tax_ids': tax_line_vals['tax_ids'],
                  'tax_tag_ids': tax_line_vals['tax_tag_ids'],
                  'group_tax_id': None if tax_rep.tax_id.id == tax_line_vals['tax_id'] else tax_line_vals['tax_id'],
                  'amount_currency': amount_currency,
                  'balance': balance,
              })
              total_amount_currency += amount_currency
              total_balance += balance
  
          # Create the aml values for order lines.
          for base_line_vals, update_base_line_vals in tax_results['base_lines_to_update']:
              order_line = base_line_vals['record']
              amount_currency = update_base_line_vals['price_subtotal']
              balance = company_currency.round(amount_currency * rate)
              aml_vals_list_per_nature['product'].append({
                  'name': order_line.full_product_name,
                  'account_id': base_line_vals['account'].id,
                  'partner_id': base_line_vals['partner'].id,
                  'currency_id': base_line_vals['currency'].id,
                  'tax_ids': [(6, 0, base_line_vals['taxes'].ids)],
                  'tax_tag_ids': update_base_line_vals['tax_tag_ids'],
                  'amount_currency': amount_currency,
                  'balance': balance,
              })
              total_amount_currency += amount_currency
              total_balance += balance
  
          # Cash rounding.
          cash_rounding = self.config_id.rounding_method
          if self.config_id.cash_rounding and cash_rounding and not self.config_id.only_round_cash_method:
              amount_currency = cash_rounding.compute_difference(self.currency_id, total_amount_currency)
              if not self.currency_id.is_zero(amount_currency):
                  balance = company_currency.round(amount_currency * rate)
  
                  if cash_rounding.strategy == 'biggest_tax':
                      biggest_tax_aml_vals = None
                      for aml_vals in aml_vals_list_per_nature['tax']:
                          if not biggest_tax_aml_vals or float_compare(-sign * aml_vals['amount_currency'], -sign * biggest_tax_aml_vals['amount_currency'], precision_rounding=self.currency_id.rounding) > 0:
                              biggest_tax_aml_vals = aml_vals
                      if biggest_tax_aml_vals:
                          biggest_tax_aml_vals['amount_currency'] += amount_currency
                          biggest_tax_aml_vals['balance'] += balance
                  elif cash_rounding.strategy == 'add_invoice_line':
                      if -sign * amount_currency > 0.0 and cash_rounding.loss_account_id:
                          account_id = cash_rounding.loss_account_id.id
                      else:
                          account_id = cash_rounding.profit_account_id.id
                      aml_vals_list_per_nature['cash_rounding'].append({
                          'name': cash_rounding.name,
                          'account_id': account_id,
                          'partner_id': commercial_partner.id,
                          'currency_id': self.currency_id.id,
                          'amount_currency': amount_currency,
                          'balance': balance,
                          'display_type': 'rounding',
                      })
  
          # Stock.
          if self.company_id.anglo_saxon_accounting and self.picking_ids.ids:
              stock_moves = self.env['stock.move'].sudo().search([
                  ('picking_id', 'in', self.picking_ids.ids),
                  ('product_id.categ_id.property_valuation', '=', 'real_time')
              ])
              for stock_move in stock_moves:
                  expense_account = stock_move.product_id._get_product_accounts()['expense']
                  stock_output_account = stock_move.product_id.categ_id.property_stock_account_output_categ_id
                  balance = -sum(stock_move.stock_valuation_layer_ids.mapped('value'))
                  aml_vals_list_per_nature['stock'].append({
                      'name': _("Stock input for %s", stock_move.product_id.name),
                      'account_id': expense_account.id,
                      'partner_id': commercial_partner.id,
                      'currency_id': self.company_id.currency_id.id,
                      'amount_currency': balance,
                      'balance': balance,
                  })
                  aml_vals_list_per_nature['stock'].append({
                      'name': _("Stock output for %s", stock_move.product_id.name),
                      'account_id': stock_output_account.id,
                      'partner_id': commercial_partner.id,
                      'currency_id': self.company_id.currency_id.id,
                      'amount_currency': -balance,
                      'balance': -balance,
                  })
  
          # sort self.payment_ids by is_split_transaction:
          for payment_id in self.payment_ids:
              is_split_transaction = payment_id.payment_method_id.split_transactions
              if is_split_transaction:
                  reversed_move_receivable_account_id = self.partner_id.property_account_receivable_id
              else:
                  reversed_move_receivable_account_id = payment_id.payment_method_id.receivable_account_id or self.company_id.account_default_pos_receivable_account_id
  
              aml_vals_entry_found = [aml_entry for aml_entry in aml_vals_list_per_nature['payment_terms']
                                      if aml_entry['account_id'] == reversed_move_receivable_account_id.id
                                      and not aml_entry['partner_id']]
  
              if aml_vals_entry_found and not is_split_transaction:
                  aml_vals_entry_found[0]['amount_currency'] += self.session_id._amount_converter(payment_id.amount, self.date_order, False)
                  aml_vals_entry_found[0]['balance'] += payment_id.amount
              else:
                  aml_vals_list_per_nature['payment_terms'].append({
                      'partner_id': commercial_partner.id if is_split_transaction else False,
                      'name': f"{reversed_move_receivable_account_id.code} {reversed_move_receivable_account_id.code}",
                      'account_id': reversed_move_receivable_account_id.id,
                      'currency_id': self.currency_id.id,
                      'amount_currency': payment_id.amount,
                      'balance': self.session_id._amount_converter(payment_id.amount, self.date_order, False),
                  })
  
          return aml_vals_list_per_nature
  
      def _create_misc_reversal_move(self, payment_moves):
          """ Create a misc move to reverse this POS order and "remove" it from the POS closing entry.
          This is done by taking data from the order and using it to somewhat replicate the resulting entry in order to
          reverse partially the movements done ine the POS closing entry.
          """
          aml_values_list_per_nature = self._prepare_aml_values_list_per_nature()
          move_lines = []
          for aml_values_list in aml_values_list_per_nature.values():
              for aml_values in aml_values_list:
                  aml_values['balance'] = -aml_values['balance']
                  aml_values['amount_currency'] = -aml_values['amount_currency']
                  move_lines.append(aml_values)
  
          # Make a move with all the lines.
          reversal_entry = self.env['account.move'].with_context(default_journal_id=self.config_id.journal_id.id).create({
              'journal_id': self.config_id.journal_id.id,
              'date': fields.Date.context_today(self),
              'ref': _('Reversal of POS closing entry %s for order %s from session %s', self.session_move_id.name, self.name, self.session_id.name),
              'invoice_line_ids': [(0, 0, aml_value) for aml_value in move_lines],
          })
          reversal_entry.action_post()
  
          # Reconcile the new receivable line with the lines from the payment move.
          pos_account_receivable = self.company_id.account_default_pos_receivable_account_id
          reversal_entry_receivable = reversal_entry.line_ids.filtered(lambda l: l.account_id == pos_account_receivable)
          payment_receivable = payment_moves.line_ids.filtered(lambda l: l.account_id == pos_account_receivable)
          (reversal_entry_receivable | payment_receivable).reconcile()
  
      def action_pos_order_invoice(self):
          self.write({'to_invoice': True})
          res = self._generate_pos_order_invoice()
          if self.company_id.anglo_saxon_accounting and self.session_id.update_stock_at_closing:
              self._create_order_picking()
          return res
  
      def _generate_pos_order_invoice(self):
          moves = self.env['account.move']
  
          for order in self:
              # Force company for all SUPERUSER_ID action
              if order.account_move:
                  moves += order.account_move
                  continue
  
              if not order.partner_id:
                  raise UserError(_('Please provide a partner for the sale.'))
  
              move_vals = order._prepare_invoice_vals()
              new_move = order._create_invoice(move_vals)
  
              order.write({'account_move': new_move.id, 'state': 'invoiced'})
              new_move.sudo().with_company(order.company_id).with_context(skip_invoice_sync=True)._post()
              moves += new_move
              payment_moves = order._apply_invoice_payments()
  
              if order.session_id.state == 'closed':  # If the session isn't closed this isn't needed.
                  # If a client requires the invoice later, we need to revers the amount from the closing entry, by making a new entry for that.
                  order._create_misc_reversal_move(payment_moves)
  
          if not moves:
              return {}
  
          return {
              'name': _('Customer Invoice'),
              'view_mode': 'form',
              'view_id': self.env.ref('account.view_move_form').id,
              'res_model': 'account.move',
              'context': "{'move_type':'out_invoice'}",
              'type': 'ir.actions.act_window',
              'nodestroy': True,
              'target': 'current',
              'res_id': moves and moves.ids[0] or False,
          }
  
      # this method is unused, and so is the state 'cancel'
      def action_pos_order_cancel(self):
          return self.write({'state': 'cancel'})
  
      def _apply_invoice_payments(self):
          receivable_account = self.env["res.partner"]._find_accounting_partner(self.partner_id).with_company(self.company_id).property_account_receivable_id
          payment_moves = self.payment_ids.sudo().with_company(self.company_id)._create_payment_moves()
          if receivable_account.reconcile:
              invoice_receivables = self.account_move.line_ids.filtered(lambda line: line.account_id == receivable_account and not line.reconciled)
              if invoice_receivables:
                  payment_receivables = payment_moves.mapped('line_ids').filtered(lambda line: line.account_id == receivable_account and line.partner_id)
                  (invoice_receivables | payment_receivables).sudo().with_company(self.company_id).reconcile()
          return payment_moves
  
      @api.model
      def create_from_ui(self, orders, draft=False):
          """ Create and update Orders from the frontend PoS application.
  
          Create new orders and update orders that are in draft status. If an order already exists with a status
          different from 'draft'it will be discarded, otherwise it will be saved to the database. If saved with
          'draft' status the order can be overwritten later by this function.
  
          :param orders: dictionary with the orders to be created.
          :type orders: dict.
          :param draft: Indicate if the orders are meant to be finalized or temporarily saved.
          :type draft: bool.
          :Returns: list -- list of db-ids for the created and updated orders.
          """
          order_ids = []
          for order in orders:
              existing_order = False
              if 'server_id' in order['data']:
                  existing_order = self.env['pos.order'].search(['|', ('id', '=', order['data']['server_id']), ('pos_reference', '=', order['data']['name'])], limit=1)
              if (existing_order and existing_order.state == 'draft') or not existing_order:
                  order_ids.append(self._process_order(order, draft, existing_order))
  
          return self.env['pos.order'].search_read(domain=[('id', 'in', order_ids)], fields=['id', 'pos_reference', 'account_move'], load=False)
  
      def _should_create_picking_real_time(self):
          return not self.session_id.update_stock_at_closing or (self.company_id.anglo_saxon_accounting and self.to_invoice)
  
      def _create_order_picking(self):
          self.ensure_one()
          if self.shipping_date:
              self.lines._launch_stock_rule_from_pos_order_lines()
          else:
              if self._should_create_picking_real_time():
                  picking_type = self.config_id.picking_type_id
                  if self.partner_id.property_stock_customer:
                      destination_id = self.partner_id.property_stock_customer.id
                  elif not picking_type or not picking_type.default_location_dest_id:
                      destination_id = self.env['stock.warehouse']._get_partner_locations()[0].id
                  else:
                      destination_id = picking_type.default_location_dest_id.id
  
                  pickings = self.env['stock.picking']._create_picking_from_pos_order_lines(destination_id, self.lines, picking_type, self.partner_id)
                  pickings.write({'pos_session_id': self.session_id.id, 'pos_order_id': self.id, 'origin': self.name})
  
      def add_payment(self, data):
          """Create a new payment for the order"""
          self.ensure_one()
          self.env['pos.payment'].create(data)
          self.amount_paid = sum(self.payment_ids.mapped('amount'))
  
      def _prepare_refund_values(self, current_session):
          self.ensure_one()
          return {
              'name': self.name + _(' REFUND'),
              'session_id': current_session.id,
              'date_order': fields.Datetime.now(),
              'pos_reference': self.pos_reference,
              'lines': False,
              'amount_tax': -self.amount_tax,
              'amount_total': -self.amount_total,
              'amount_paid': 0,
              'is_total_cost_computed': False
          }
  
      def _prepare_mail_values(self, name, client, ticket):
          message = Markup(
              _("<p>Dear %(client_name)s,<br/>Here is your electronic ticket for the %(pos_name)s. </p>")
          ) % {
              'client_name': client['name'],
              'pos_name': name,
          }
  
          return {
              'subject': _('Receipt %s', name),
              'body_html': message,
              'author_id': self.env.user.partner_id.id,
              'email_from': self.env.company.email or self.env.user.email_formatted,
              'email_to': client['email'],
              'attachment_ids': self._add_mail_attachment(name, ticket),
          }
  
      def refund(self):
          """Create a copy of order  for refund order"""
          refund_orders = self.env['pos.order']
          for order in self:
              # When a refund is performed, we are creating it in a session having the same config as the original
              # order. It can be the same session, or if it has been closed the new one that has been opened.
              current_session = order.session_id.config_id.current_session_id
              if not current_session:
                  raise UserError(_('To return product(s), you need to open a session in the POS %s', order.session_id.config_id.display_name))
              refund_order = order.copy(
                  order._prepare_refund_values(current_session)
              )
              for line in order.lines:
                  PosOrderLineLot = self.env['pos.pack.operation.lot']
                  for pack_lot in line.pack_lot_ids:
                      PosOrderLineLot += pack_lot.copy()
                  line.copy(line._prepare_refund_data(refund_order, PosOrderLineLot))
              refund_orders |= refund_order
  
          return {
              'name': _('Return Products'),
              'view_mode': 'form',
              'res_model': 'pos.order',
              'res_id': refund_orders.ids[0],
              'view_id': False,
              'context': self.env.context,
              'type': 'ir.actions.act_window',
              'target': 'current',
          }
  
      def _add_mail_attachment(self, name, ticket):
          filename = 'Receipt-' + name + '.jpg'
          receipt = self.env['ir.attachment'].create({
              'name': filename,
              'type': 'binary',
              'datas': ticket,
              'res_model': 'pos.order',
              'res_id': self.ids[0],
              'mimetype': 'image/jpeg',
          })
          attachment = [(4, receipt.id)]
  
          if self.mapped('account_move'):
              report = self.env['ir.actions.report']._render_qweb_pdf("account.account_invoices", self.account_move.ids[0])
              filename = name + '.pdf'
              invoice = self.env['ir.attachment'].create({
                  'name': filename,
                  'type': 'binary',
                  'datas': base64.b64encode(report[0]),
                  'res_model': 'pos.order',
                  'res_id': self.ids[0],
                  'mimetype': 'application/x-pdf'
              })
              attachment += [(4, invoice.id)]
  
          return attachment
  
      def action_receipt_to_customer(self, name, client, ticket):
          if not self:
              return False
          if not client.get('email'):
              return False
  
          mail = self.env['mail.mail'].sudo().create(self._prepare_mail_values(name, client, ticket))
          mail.send()
  
      def is_already_paid(self):
          return self.state == "paid"
  
      @api.model
      def remove_from_ui(self, server_ids):
          """ Remove orders from the frontend PoS application
  
          Remove orders from the server by id.
          :param server_ids: list of the id's of orders to remove from the server.
          :type server_ids: list.
          :returns: list -- list of db-ids for the removed orders.
          """
          orders = self.search([('id', 'in', server_ids), ('state', '=', 'draft')])
          orders.write({'state': 'cancel'})
          # TODO Looks like delete cascade is a better solution.
          orders.mapped('payment_ids').sudo().unlink()
          orders.sudo().unlink()
          return orders.ids
  
      @api.model
      def search_paid_order_ids(self, config_id, domain, limit, offset):
          """Search for 'paid' orders that satisfy the given domain, limit and offset."""
          default_domain = [('state', '!=', 'draft'), ('state', '!=', 'cancel')]
          if domain == []:
              real_domain = AND([[['config_id', '=', config_id]], default_domain])
          else:
              real_domain = AND([domain, default_domain])
          orders = self.search(real_domain, limit=limit, offset=offset)
          # We clean here the orders that does not have the same currency.
          # As we cannot use currency_id in the domain (because it is not a stored field),
          # we must do it after the search.
          pos_config = self.env['pos.config'].browse(config_id)
          orders = orders.filtered(lambda order: order.currency_id == pos_config.currency_id)
          orderlines = self.env['pos.order.line'].search(['|', ('refunded_orderline_id.order_id', 'in', orders.ids), ('order_id', 'in', orders.ids)])
  
          # We will return to the frontend the ids and the date of their last modification
          # so that it can compare to the last time it fetched the orders and can ask to fetch
          # orders that are not up-to-date.
          # The date of their last modification is either the last time one of its orderline has changed,
          # or the last time a refunded orderline related to it has changed.
          orders_info = defaultdict(lambda: datetime.min)
          for orderline in orderlines:
              key_order = orderline.order_id.id if orderline.order_id in orders \
                              else orderline.refunded_orderline_id.order_id.id
              if orders_info[key_order] < orderline.write_date:
                  orders_info[key_order] = orderline.write_date
          totalCount = self.search_count(real_domain)
          return {'ordersInfo': list(orders_info.items())[::-1], 'totalCount': totalCount}
  
      def _export_for_ui(self, order):
          timezone = pytz.timezone(self._context.get('tz') or self.env.user.tz or 'UTC')
          return {
              'lines': [[0, 0, line] for line in order.lines.export_for_ui()],
              'statement_ids': [[0, 0, payment] for payment in order.payment_ids.export_for_ui()],
              'name': order.pos_reference,
              'uid': re.search('([0-9-]){14}', order.pos_reference).group(0),
              'amount_paid': order.amount_paid,
              'amount_total': order.amount_total,
              'amount_tax': order.amount_tax,
              'amount_return': order.amount_return,
              'pos_session_id': order.session_id.id,
              'pricelist_id': order.pricelist_id.id,
              'partner_id': order.partner_id.id,
              'user_id': order.user_id.id,
              'sequence_number': order.sequence_number,
              'date_order': str(order.date_order.astimezone(timezone)),
              'fiscal_position_id': order.fiscal_position_id.id,
              'to_invoice': order.to_invoice,
              'shipping_date': order.shipping_date,
              'state': order.state,
              'account_move': order.account_move.id,
              'id': order.id,
              'is_tipped': order.is_tipped,
              'tip_amount': order.tip_amount,
              'access_token': order.access_token,
              'ticket_code': order.ticket_code,
              'last_order_preparation_change': order.last_order_preparation_change,
              'tracking_number':order.tracking_number,
          }
  
      @api.model
      def export_for_ui_shared_order(self, config_id):
          config = self.env['pos.config'].browse(config_id)
          orders = self.env['pos.order'].search(['&', ('state', '=', 'draft'), '|', ('config_id', '=', config_id), ('config_id', 'in', config.trusted_config_ids.ids)])
          return orders.export_for_ui()
  
      def export_for_ui(self):
          """ Returns a list of dict with each item having similar signature as the return of
              `export_as_JSON` of models.Order. This is useful for back-and-forth communication
              between the pos frontend and backend.
          """
          return self.mapped(self._export_for_ui) if self else []
  
  
  class PosOrderLine(models.Model):
      _name = "pos.order.line"
      _description = "Point of Sale Order Lines"
      _rec_name = "product_id"
  
      def _order_line_fields(self, line, session_id=None):
          if line and 'name' not in line[2]:
              session = self.env['pos.session'].browse(session_id).exists() if session_id else None
              if session and session.config_id.sequence_line_id:
                  # set name based on the sequence specified on the config
                  line[2]['name'] = session.config_id.sequence_line_id._next()
              else:
                  # fallback on any pos.order.line sequence
                  line[2]['name'] = self.env['ir.sequence'].next_by_code('pos.order.line')
  
          if line and 'tax_ids' not in line[2]:
              product = self.env['product.product'].browse(line[2]['product_id'])
              line[2]['tax_ids'] = [(6, 0, [x.id for x in product.taxes_id])]
  
          # Clean up fields sent by the JS
          line = [
              line[0], line[1], {k: v for k, v in line[2].items() if self._is_field_accepted(k)}
          ]
          return line
  
      company_id = fields.Many2one('res.company', string='Company', related="order_id.company_id", store=True)
      name = fields.Char(string='Line No', required=True, copy=False)
      skip_change = fields.Boolean('Skip line when sending ticket to kitchen printers.')
      notice = fields.Char(string='Discount Notice')
      product_id = fields.Many2one('product.product', string='Product', domain=[('sale_ok', '=', True)], required=True, change_default=True)
      attribute_value_ids = fields.Many2many('product.template.attribute.value', string="Selected Attributes")
      custom_attribute_value_ids = fields.One2many(
          comodel_name='product.attribute.custom.value', inverse_name='pos_order_line_id',
          string="Custom Values",
          store=True, readonly=False)
      price_unit = fields.Float(string='Unit Price', digits=0)
      qty = fields.Float('Quantity', digits='Product Unit of Measure', default=1)
      price_subtotal = fields.Float(string='Subtotal w/o Tax', digits=0,
          readonly=True, required=True)
      price_subtotal_incl = fields.Float(string='Subtotal', digits=0,
          readonly=True, required=True)
      price_extra = fields.Float(string="Price extra")
      margin = fields.Monetary(string="Margin", compute='_compute_margin')
      margin_percent = fields.Float(string="Margin (%)", compute='_compute_margin', digits=(12, 4))
      total_cost = fields.Float(string='Total cost', digits='Product Price', readonly=True)
      is_total_cost_computed = fields.Boolean(help="Allows to know if the total cost has already been computed or not")
      discount = fields.Float(string='Discount (%)', digits=0, default=0.0)
      order_id = fields.Many2one('pos.order', string='Order Ref', ondelete='cascade', required=True, index=True)
      tax_ids = fields.Many2many('account.tax', string='Taxes', readonly=True)
      tax_ids_after_fiscal_position = fields.Many2many('account.tax', compute='_get_tax_ids_after_fiscal_position', string='Taxes to Apply')
      pack_lot_ids = fields.One2many('pos.pack.operation.lot', 'pos_order_line_id', string='Lot/serial Number')
      product_uom_id = fields.Many2one('uom.uom', string='Product UoM', related='product_id.uom_id')
      currency_id = fields.Many2one('res.currency', related='order_id.currency_id')
      full_product_name = fields.Char('Full Product Name')
      customer_note = fields.Char('Customer Note')
      refund_orderline_ids = fields.One2many('pos.order.line', 'refunded_orderline_id', 'Refund Order Lines', help='Orderlines in this field are the lines that refunded this orderline.')
      refunded_orderline_id = fields.Many2one('pos.order.line', 'Refunded Order Line', help='If this orderline is a refund, then the refunded orderline is specified in this field.')
      refunded_qty = fields.Float('Refunded Quantity', compute='_compute_refund_qty', help='Number of items refunded in this orderline.')
      uuid = fields.Char(string='Uuid', readonly=True, copy=False)
      combo_parent_id = fields.Many2one('pos.order.line', string='Combo Parent')
      combo_line_ids = fields.One2many('pos.order.line', 'combo_parent_id', string='Combo Lines')
  
      @api.model
      def _is_field_accepted(self, field):
          return field in self._fields and not field in ['combo_parent_id', 'combo_line_ids']
  
      @api.depends('refund_orderline_ids')
      def _compute_refund_qty(self):
          for orderline in self:
              orderline.refunded_qty = -sum(orderline.mapped('refund_orderline_ids.qty'))
  
      def _prepare_refund_data(self, refund_order, PosOrderLineLot):
          """
          This prepares data for refund order line. Inheritance may inject more data here
  
          @param refund_order: the pre-created refund order
          @type refund_order: pos.order
  
          @param PosOrderLineLot: the pre-created Pack operation Lot
          @type PosOrderLineLot: pos.pack.operation.lot
  
          @return: dictionary of data which is for creating a refund order line from the original line
          @rtype: dict
          """
          self.ensure_one()
          return {
              'name': self.name + _(' REFUND'),
              'qty': -(self.qty - self.refunded_qty),
              'order_id': refund_order.id,
              'price_subtotal': -self.price_subtotal,
              'price_subtotal_incl': -self.price_subtotal_incl,
              'pack_lot_ids': PosOrderLineLot,
              'is_total_cost_computed': False,
              'refunded_orderline_id': self.id,
          }
  
      @api.model_create_multi
      def create(self, vals_list):
          for vals in vals_list:
              if vals.get('order_id') and not vals.get('name'):
                  # set name based on the sequence specified on the config
                  config = self.env['pos.order'].browse(vals['order_id']).session_id.config_id
                  if config.sequence_line_id:
                      vals['name'] = config.sequence_line_id._next()
              if not vals.get('name'):
                  # fallback on any pos.order sequence
                  vals['name'] = self.env['ir.sequence'].next_by_code('pos.order.line')
          return super().create(vals_list)
  
      def write(self, values):
          if values.get('pack_lot_line_ids'):
              for pl in values.get('pack_lot_ids'):
                  if pl[2].get('server_id'):
                      pl[2]['id'] = pl[2]['server_id']
                      del pl[2]['server_id']
          return super().write(values)
  
      @api.ondelete(at_uninstall=False)
      def _unlink_except_order_state(self):
          if self.filtered(lambda x: x.order_id.state not in ["draft", "cancel"]):
              raise UserError(_("You can only unlink PoS order lines that are related to orders in new or cancelled state."))
  
      @api.onchange('price_unit', 'tax_ids', 'qty', 'discount', 'product_id')
      def _onchange_amount_line_all(self):
          for line in self:
              res = line._compute_amount_line_all()
              line.update(res)
  
      def _compute_amount_line_all(self):
          self.ensure_one()
          fpos = self.order_id.fiscal_position_id
          tax_ids_after_fiscal_position = fpos.map_tax(self.tax_ids)
          price = self.price_unit * (1 - (self.discount or 0.0) / 100.0)
          taxes = tax_ids_after_fiscal_position.compute_all(price, self.order_id.currency_id, self.qty, product=self.product_id, partner=self.order_id.partner_id)
          return {
              'price_subtotal_incl': taxes['total_included'],
              'price_subtotal': taxes['total_excluded'],
          }
  
      @api.onchange('product_id')
      def _onchange_product_id(self):
          if self.product_id:
              price = self.order_id.pricelist_id._get_product_price(
                  self.product_id, self.qty or 1.0, currency=self.currency_id
              )
              self.tax_ids = self.product_id.taxes_id.filtered_domain(self.env['account.tax']._check_company_domain(self.company_id))
              tax_ids_after_fiscal_position = self.order_id.fiscal_position_id.map_tax(self.tax_ids)
              self.price_unit = self.env['account.tax']._fix_tax_included_price_company(price, self.tax_ids, tax_ids_after_fiscal_position, self.company_id)
              self._onchange_qty()
  
      @api.onchange('qty', 'discount', 'price_unit', 'tax_ids')
      def _onchange_qty(self):
          if self.product_id:
              price = self.price_unit * (1 - (self.discount or 0.0) / 100.0)
              self.price_subtotal = self.price_subtotal_incl = price * self.qty
              if (self.tax_ids):
                  taxes = self.tax_ids.compute_all(price, self.order_id.currency_id, self.qty, product=self.product_id, partner=False)
                  self.price_subtotal = taxes['total_excluded']
                  self.price_subtotal_incl = taxes['total_included']
  
      @api.depends('order_id', 'order_id.fiscal_position_id')
      def _get_tax_ids_after_fiscal_position(self):
          for line in self:
              line.tax_ids_after_fiscal_position = line.order_id.fiscal_position_id.map_tax(line.tax_ids)
  
      def _export_for_ui(self, orderline):
          return {
              'id': orderline.id,
              'qty': orderline.qty,
              'attribute_value_ids': orderline.attribute_value_ids.ids,
              'custom_attribute_value_ids': orderline.custom_attribute_value_ids.read(['id', 'name', 'custom_product_template_attribute_value_id', 'custom_value'], load=False),
              'price_unit': orderline.price_unit,
              'skip_change': orderline.skip_change,
              'uuid': orderline.uuid,
              'price_subtotal': orderline.price_subtotal,
              'price_subtotal_incl': orderline.price_subtotal_incl,
              'product_id': orderline.product_id.id,
              'discount': orderline.discount,
              'tax_ids': [[6, False, orderline.tax_ids.mapped(lambda tax: tax.id)]],
              'pack_lot_ids': [[0, 0, lot] for lot in orderline.pack_lot_ids.export_for_ui()],
              'customer_note': orderline.customer_note,
              'refunded_qty': orderline.refunded_qty,
              'price_extra': orderline.price_extra,
              'full_product_name': orderline.full_product_name,
              'refunded_orderline_id': orderline.refunded_orderline_id.id,
              'combo_parent_id': orderline.combo_parent_id.id,
              'combo_line_ids': orderline.combo_line_ids.mapped('id'),
          }
  
      def export_for_ui(self):
          return self.mapped(self._export_for_ui) if self else []
  
      def _get_procurement_group(self):
          return self.order_id.procurement_group_id
  
      def _prepare_procurement_group_vals(self):
          return {
              'name': self.order_id.name,
              'move_type': self.order_id.config_id.picking_policy,
              'pos_order_id': self.order_id.id,
              'partner_id': self.order_id.partner_id.id,
          }
  
      def _prepare_procurement_values(self, group_id=False):
          """ Prepare specific key for moves or other components that will be created from a stock rule
          coming from a sale order line. This method could be override in order to add other custom key that could
          be used in move/po creation.
          """
          self.ensure_one()
          # Use the delivery date if there is else use date_order and lead time
          if self.order_id.shipping_date:
              date_deadline = self.order_id.shipping_date
          else:
              date_deadline = self.order_id.date_order
  
          values = {
              'group_id': group_id,
              'date_planned': date_deadline,
              'date_deadline': date_deadline,
              'route_ids': self.order_id.config_id.route_id,
              'warehouse_id': self.order_id.config_id.warehouse_id or False,
              'partner_id': self.order_id.partner_id.id,
              'product_description_variants': self.full_product_name,
              'company_id': self.order_id.company_id,
          }
          return values
  
      def _launch_stock_rule_from_pos_order_lines(self):
  
          procurements = []
          for line in self:
              line = line.with_company(line.company_id)
              if not line.product_id.type in ('consu','product'):
                  continue
  
              group_id = line._get_procurement_group()
              if not group_id:
                  group_id = self.env['procurement.group'].create(line._prepare_procurement_group_vals())
                  line.order_id.procurement_group_id = group_id
  
              values = line._prepare_procurement_values(group_id=group_id)
              product_qty = line.qty
  
              procurement_uom = line.product_id.uom_id
              procurements.append(self.env['procurement.group'].Procurement(
                  line.product_id, product_qty, procurement_uom,
                  line.order_id.partner_id.property_stock_customer,
                  line.name, line.order_id.name, line.order_id.company_id, values))
          if procurements:
              self.env['procurement.group'].run(procurements)
  
          # This next block is currently needed only because the scheduler trigger is done by picking confirmation rather than stock.move confirmation
          orders = self.mapped('order_id')
          for order in orders:
              pickings_to_confirm = order.picking_ids
              if pickings_to_confirm:
                  # Trigger the Scheduler for Pickings
                  pickings_to_confirm.action_confirm()
                  tracked_lines = order.lines.filtered(lambda l: l.product_id.tracking != 'none')
                  lines_by_tracked_product = groupby(sorted(tracked_lines, key=lambda l: l.product_id.id), key=lambda l: l.product_id.id)
                  for product_id, lines in lines_by_tracked_product:
                      lines = self.env['pos.order.line'].concat(*lines)
                      moves = pickings_to_confirm.move_ids.filtered(lambda m: m.product_id.id == product_id)
                      moves.move_line_ids.unlink()
                      moves._add_mls_related_to_order(lines, are_qties_done=False)
                      moves._recompute_state()
          return True
  
      def _is_product_storable_fifo_avco(self):
          self.ensure_one()
          return self.product_id.type == 'product' and self.product_id.cost_method in ['fifo', 'average']
  
      def _compute_total_cost(self, stock_moves):
          """
          Compute the total cost of the order lines.
          :param stock_moves: recordset of `stock.move`, used for fifo/avco lines
          """
          for line in self.filtered(lambda l: not l.is_total_cost_computed):
              product = line.product_id
              if line._is_product_storable_fifo_avco() and stock_moves:
                  product_cost = product._compute_average_price(0, line.qty, self._get_stock_moves_to_consider(stock_moves, product))
              else:
                  product_cost = product.standard_price
              line.total_cost = line.qty * product.cost_currency_id._convert(
                  from_amount=product_cost,
                  to_currency=line.currency_id,
                  company=line.company_id or self.env.company,
                  date=line.order_id.date_order or fields.Date.today(),
                  round=False,
              )
              line.is_total_cost_computed = True
  
      def _get_stock_moves_to_consider(self, stock_moves, product):
          return stock_moves.filtered(lambda ml: ml.product_id.id == product.id)
  
      @api.depends('price_subtotal', 'total_cost')
      def _compute_margin(self):
          for line in self:
              line.margin = line.price_subtotal - line.total_cost
              line.margin_percent = not float_is_zero(line.price_subtotal, precision_rounding=line.currency_id.rounding) and line.margin / line.price_subtotal or 0
  
  
  class PosOrderLineLot(models.Model):
      _name = "pos.pack.operation.lot"
      _description = "Specify product lot/serial number in pos order line"
      _rec_name = "lot_name"
  
      pos_order_line_id = fields.Many2one('pos.order.line')
      order_id = fields.Many2one('pos.order', related="pos_order_line_id.order_id", readonly=False)
      lot_name = fields.Char('Lot Name')
      product_id = fields.Many2one('product.product', related='pos_order_line_id.product_id', readonly=False)
  
      def _export_for_ui(self, lot):
          return {
              'lot_name': lot.lot_name,
              'order_line': lot.pos_order_line_id.id,
          }
  
      def export_for_ui(self):
          return self.mapped(self._export_for_ui) if self else []
  
  class AccountCashRounding(models.Model):
      _inherit = 'account.cash.rounding'
  
      @api.constrains('rounding', 'rounding_method', 'strategy')
      def _check_session_state(self):
          open_session = self.env['pos.session'].search([('config_id.rounding_method', 'in', self.ids), ('state', '!=', 'closed')], limit=1)
          if open_session:
              raise ValidationError(
                  _("You are not allowed to change the cash rounding configuration while a pos session using it is already opened."))
  