# -*- coding: utf-8 -*-
#############################################################################
#
#    Cybrosys Technologies Pvt. Ltd.
#
#    Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>)
#    Author: Jumana Jabin MP (odoo@cybrosys.com)
#
#    You can modify it under the terms of the GNU AFFERO
#    GENERAL PUBLIC LICENSE (AGPL 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 AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
#
#    You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
#    (AGPL v3) along with this program.
#    If not, see <http://www.gnu.org/licenses/>.
#
#############################################################################
import requests
from odoo import fields, models, _
from odoo.exceptions import UserError, ValidationError

TIMEOUT = 20


class ProjectCredential(models.Model):
    """Model for Project Credentials for sync Google Tasks"""
    _name = "project.credential"
    _description = "Google Task Credentials"

    hangout_client = fields.Char(string="Client ID",
                                 help='Google Developer Console Client ID',)
    hangout_client_secret = fields.Char(string="Client Secret",
                                        help='Google Developer Console '
                                             'Client Secret')
    hangout_redirect_uri = fields.Char(string="Authorized redirect URIs",
                                       help='Google Authorized redirect URIs')
    hangout_company_access_token = fields.Char(string='Access Token',
                                               copy=False,
                                               help='Access token for Google'
                                                    ' Tasks API')
    hangout_company_access_token_expiry = fields.Datetime(
        string='Token expiry',
        help='Expiry date and time of the access token')
    hangout_company_refresh_token = fields.Char(string='Refresh Token',
                                                copy=False,
                                                help='Refresh token for Google'
                                                     'Tasks API')
    hangout_company_authorization_code = fields.Char(
        string="Authorization Code",
        help='Authorization code for authentication')
    hangout_company_api_key = fields.Char(string="Enter API Key",
                                          help='API key for Google Tasks API')
    name = fields.Char(string="Name", default="Credentials",
                       help='Name of the credentials')

    def action_google_task_company_authenticate(self):
        """Authenticate the company with Google Tasks API . This method
         generates a URL that the user can open to initiate the authentication
         process with Google Tasks API. It constructs the necessary URL
         parameters such as client ID, redirect URI, and required scopes."""
        if not self.hangout_client:
            raise ValidationError("Please Enter Client ID")
        client_id = self.hangout_client
        if not self.hangout_redirect_uri:
            raise ValidationError("Please Enter Client Secret")
        redirect_url = self.hangout_redirect_uri
        calendar_scope = 'https://www.googleapis.com/auth/calendar'
        google_task_scope = 'https://www.googleapis.com/auth/tasks'
        url = (
            "https://accounts.google.com/o/oauth2/v2/auth?response_type=code"
            "&access_type=offline&client_id={}&redirect_uri={}&scope={}+{}"
        ).format(client_id, redirect_url, calendar_scope, google_task_scope)
        return {
            "type": 'ir.actions.act_url',
            "url": url,
            "target": "new"
        }

    def action_google_task_company_refresh_token(self):
        """Refresh the access token for Google Tasks API. This method refreshes
         the access token for accessing the Google Tasks API using the
         provided refresh token. It sends a request to Google's token endpoint
         to obtain a new access token."""
        if not self.hangout_client:
            raise UserError(_('Client ID is not yet configured.'))
        client_id = self.hangout_client
        if not self.hangout_client_secret:
            raise UserError(_('Client Secret is not yet configured.'))
        client_secret = self.hangout_client_secret
        if not self.hangout_company_refresh_token:
            raise UserError(_('Refresh Token is not yet configured.'))
        refresh_token = self.hangout_company_refresh_token
        data = {
            'client_id': client_id,
            'client_secret': client_secret,
            'refresh_token': refresh_token,
            'grant_type': 'refresh_token',
        }
        response = requests.post(
            'https://accounts.google.com/o/oauth2/token',
            data=data,
            headers={'content-type': 'application/x-www-form-urlencoded'},
            timeout=TIMEOUT)
        if response.json() and response.json().get('access_token'):
            self.write({
                'hangout_company_access_token': response.json().get(
                    'access_token'),
            })
        else:
            raise UserError(
                _('Something went wrong during the token generation. '
                  'Please request again an authorization code.'))