# -*- coding: utf-8 -*-
#############################################################################
#
#    Cybrosys Technologies Pvt. Ltd.
#
#    Copyright (C) 2024-TODAY Cybrosys Technologies(<https://www.cybrosys.com>)
#    Author: Cybrosys Techno Solutions(<https://www.cybrosys.com>)
#
#    You can modify it under the terms of the GNU LESSER
#    GENERAL PUBLIC LICENSE (LGPL v3), Version 3.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU LESSER GENERAL PUBLIC LICENSE (LGPL v3) for more details.
#
#    You should have received a copy of the GNU LESSER GENERAL PUBLIC LICENSE
#    (LGPL v3) along with this program.
#    If not, see <http://www.gnu.org/licenses/>.
#
#############################################################################
from odoo import fields, models


class PurchaseOrder(models.Model):
    """
        Customization of Purchase Order model to add additional features.
        """
    _inherit = 'purchase.order'

    READONLY_STATES = {
        'purchase': [('readonly', True)],
        'done': [('readonly', True)],
        'cancel': [('readonly', True)],
    }
    partner_id = fields.Many2one(
        'res.partner', string='Vendor', required=True,
        states=READONLY_STATES, change_default=True,
        tracking=True, help="Select the customer from the list of approved customers.",
        domain="['|', ('company_id', '=', False), ('company_id', '=', company_id), ('state', '=', 'approve')]")