# Copyright 2019 Creu Blanca
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).

from odoo import api, fields, models


class DocumentPage(models.Model):

    _inherit = 'document.page'

    group_ids = fields.Many2many(
        'res.groups',
        store=True,
        relation='document_page_direct_group',
        column1='document_page_id',
        column2='group_id',
        compute='_compute_group_ids'
    )
    direct_group_ids = fields.Many2many(
        'res.groups',
        string='Visible to',
        help='Set the groups that can view this category and its childs',
        relation='document_page_group',
        column1='document_page_id',
        column2='group_id',
    )

    @api.depends('direct_group_ids', 'parent_id', 'parent_id.group_ids')
    def _compute_group_ids(self):
        for record in self:
            groups = record.direct_group_ids
            if record.parent_id:
                groups |= record.parent_id.group_ids
            record.group_ids = groups