# -*- coding: utf-8 -*-
###############################################################################
#
#    Cybrosys Technologies Pvt. Ltd.
#
#    Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>)
#    Author: Cybrosys Techno Solutions (Contact : odoo@cybrosys.com)
#
#    This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    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 for more details.
#
#    You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
#    along with this program. If not, see <http://www.gnu.org/licenses/>.
#
###############################################################################
import base64
import html2text
from odoo import models, _
from odoo.exceptions import ValidationError


class AccountMove(models.Model):
    """Inherited the module for adding a button that helps to send WhatsApp
    message to the customer. """
    _inherit = 'account.move'

    def action_send_by_whatsapp(self):
        """
        This method is invoked when the 'send_by_whatsapp' button is clicked.
        It opens a wizard containing the message to be sent to the WhatsApp
        web page. """
        if not self.partner_id.mobile:
            raise ValidationError(
                _('Add a WhatsApp mobile number to the sale order partner!'))
        if not self.partner_id.mobile.startswith('+'):
            raise ValidationError(
                _('Please add a valid mobile number along with a valid'
                  ' country code!'))
        twilio_whatsapp = self.env['ir.config_parameter'].sudo().get_param(
            'all_in_one_whatsapp_integration.twilio_whatsapp')
        if not twilio_whatsapp.startswith('+'):
            raise ValidationError(
                _('Please add a valid Twilio mobile number along with "+".'))
        template_id = self.env.ref(
            'all_in_one_whatsapp_integration.account_move_whatsapp_template').id
        mail_template = self.env['mail.template'].browse(template_id)
        mail_template_values = mail_template.with_context(
            tpl_partners_only=True).generate_email(
            [self.id], fields=['body_html'])
        body_html = mail_template_values[self.id].pop('body_html', '')
        whatsapp_message = html2text.html2text(body_html)
        report = self.env['ir.actions.report']._render_qweb_pdf(
            'account.account_invoices', self.id)
        report_attachment = self.env['ir.attachment'].sudo().create({
            'name': 'Invoice Report',
            'type': 'binary',
            'datas': base64.b64encode(report[0]),
            'store_fname': 'Invoice Report.pdf',
            'mimetype': 'application/pdf',
            'res_model': 'account.move',
        })
        return {
            'type': 'ir.actions.act_window',
            'name': _('WhatsApp Message'),
            'res_model': 'send.whatsapp.message',
            'target': 'new',
            'view_mode': 'form',
            'view_type': 'form',
            'context': {'default_whatsapp_message': whatsapp_message,
                        'default_attachment_ids': [(4, report_attachment.id)]},
        }