# -*- coding: utf-8 -*-
###############################################################################
#
#    Cybrosys Technologies Pvt. Ltd.
#
#    Copyright (C) 2024-TODAY Cybrosys Technologies(<https://www.cybrosys.com>)
#    Author: Cybrosys Techno Solutions (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 base64
import io
import json

import qrcode
import requests

from odoo import fields, models, _
from odoo.exceptions import ValidationError


class ConfigurationManager(models.Model):
    """A new model is to be created for configuring the API settings
    required to connect to WhatsApp."""
    _name = "configuration.manager"
    _description = "Configuration Manager"
    _rec_name = 'instance'

    instance = fields.Char(string="Instance", required=True,
                           help="Give instance for whatsapp api")
    token = fields.Char(string="Token", required=True,
                        help="Give token for whatsapp api")
    config_id = fields.Many2one("pos.config", string="Point of Sale",
                                required=True,
                                help="Give Point of Sale for whatsapp api")
    state = fields.Selection(
        selection=[('draft', 'Draft'),
                   ('verified', 'Verified')],
        default='draft', string="state",
        help="State for connection")

    def action_authenticate(self):
        """ Opens a wizard for scanning QR code,
        After scanning number get active status."""
        url = f"https://api.ultramsg.com/{self.instance}/instance/status"
        querystring = {
            "token": self.token
        }
        headers = {'content-type': 'application/x-www-form-urlencoded'}
        req = requests.request("GET", url, headers=headers,
                               params=querystring)
        if req.status_code != 200:
            raise ValidationError(_("Please provide valid token"))
        if req.text == 'Client not found.':
            return self.display_notification('danger',
                                             'Please check the field values')
        if req.json().get('status', {}).get('accountStatus', {}).get(
                'substatus') == 'normal':
            self.state = "draft"
            qr_code_data = self.get_qr_code()
            if qr_code_data:
                return self.open_authenticate_wizard(qr_code_data)
        if req.json().get('status', {}).get('accountStatus', {}).get(
                'substatus') == 'connected':
            self.state = "verified"
            return self.display_notification('success',
                                             'Already connected')
    def get_qr_code(self):
        """Retrieve the QR code from the Ultramsg API."""
        url = f"https://api.ultramsg.com/{self.instance}/instance/qrCode"
        querystring = {
            "token": self.token
        }
        headers = {'content-type': 'application/x-www-form-urlencoded'}
        response = requests.get(url, headers=headers, params=querystring)
        if response.status_code == 200:
            qr_code_data = response.text
            return qr_code_data
        else:
            return None

    def display_notification(self, message_type, message):
        """ Got connected message"""
        return {
            'type': 'ir.actions.client',
            'tag': 'display_notification',
            'params': {
                'message': message,
                'type': message_type,
                'sticky': False,
            }
        }

    def open_authenticate_wizard(self, qr_code_data):
        """Opens QR code scanning wizard"""
        decoded_data = json.loads(qr_code_data)
        qr_code_string = decoded_data['qrCode']
        img = qrcode.make(qr_code_string)
        result = io.BytesIO()
        img.save(result, format='PNG')
        result.seek(0)
        image_result = base64.b64encode(result.read())
        return {
            'type': 'ir.actions.act_window',
            'res_model': 'whatsapp.authenticate',
            'name': 'WhatsApp Connect',
            'views': [(False, 'form')],
            'target': 'new',
            'context': {
                'default_qrcode': image_result,
                'default_configuration_manager_id': self.id,
            }
        }