# Copyright 2017 Camptocamp SA
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).

import json
from lxml import etree

from odoo import fields, models, api, _
from odoo.addons.server_environment import serv_config


class AuthOAuthProvider(models.Model):

    _inherit = 'auth.oauth.provider'

    managed_by_env = fields.Boolean(compute='_compute_server_env')
    client_id = fields.Char(string='Client ID', compute='_compute_server_env')
    enabled = fields.Boolean(string='Allowed', compute='_compute_server_env',
                             store=True)

    @api.depends('name')
    def _compute_server_env(self):

        base_section = 'auth_oauth'

        for provider in self:

            provider_simple_name = provider.name.split(' ')[0].lower()
            provider_section_name = '.'.join(
                [base_section, provider_simple_name])

            vals = {}

            if serv_config.has_section(provider_section_name):

                vals.update({'managed_by_env': True})

                vals.update(serv_config.items(provider_section_name))
            else:
                vals.update({'managed_by_env': False, 'enabled': False})

            provider.update(vals)

    @api.model
    def fields_view_get(self, view_id=None, view_type='form', toolbar=False,
                        submenu=False):
        res = super(AuthOAuthProvider, self).fields_view_get(
            view_id=view_id, view_type=view_type, toolbar=toolbar,
            submenu=submenu)
        readonly_fields = ['enabled', 'client_id']
        doc = etree.XML(res['arch'])
        for ro_field in readonly_fields:
            for node in doc.xpath("//field[@name='%s']" % ro_field):
                node.set('readonly', '1')
                modifiers = json.loads(node.get("modifiers"))
                modifiers['readonly'] = True
                node.set("modifiers", json.dumps(modifiers))

                node.set('help', _('This field is managed through server '
                                   'environment'))
        res['arch'] = etree.tostring(doc, encoding='unicode')
        return res