from odoo import models, api

class ResPartner(models.Model):
    _inherit = 'res.partner'

    @api.model
    def get_pos_last_orders(self, partner_id):
        orders = self.env['pos.order'].search(
            [('partner_id', '=', partner_id)],
            order='date_order desc',
            limit=2
        )
        return [{
            'id': order.id,
            'name': order.name,
            'pos_reference': order.pos_reference,
            'date_order': order.date_order,
            'amount_total': order.amount_total,
            'note': order.note,
            'lines': [{
                'id': line.id,
                'product_name': line.product_id.name,
                'qty': line.qty,
                'price_unit': line.price_unit,
                'price_subtotal_incl': line.price_subtotal_incl,
            } for line in order.lines],
        } for order in orders]