# -*- 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 base64
import html2text
from odoo import models, _
from odoo.exceptions import ValidationError


class SaleOrder(models.Model):
    """Inherited the module for adding a button that helps to send whatsapp
        message to the customer """
    _inherit = "sale.order"

    def action_send_by_whatsapp(self):
        """When you click the send_by_whatsapp button, it will open a wizard
        that contain the message to send to the whatsapp web page."""
        if not self.partner_id.mobile:
            raise ValidationError(_('Add whatsapp mobile number to the  '
                                    'sale order partner!'))
        if not self.partner_id.mobile[0] == "+":
            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:
            raise ValidationError(_("Please add your valid Twilio whatsapp "
                                    " number in settings"))
        if twilio_whatsapp[0] != "+":
            raise ValidationError(_("Please add a valid Twilio mobile number "
                                    "along with "+"."))
        template_id = self.env.ref("all_in_one_whatsapp_integration."
                                   "sale_order_whatsapp_template").id
        mail_template_values = self.env["mail.template"] \
            .with_context(tpl_partners_only=True).browse(
            template_id).generate_email([self.id], fields=["body_html"])
        mail_template = dict(mail_template_values).get(self.id)
        if mail_template and "body_html" in mail_template:
            body_html = mail_template["body_html"]
        else:
            raise ValidationError(_("Failed to retrieve the email template's"
                                    "  body HTML."))
        whatsapp_message = html2text.html2text(body_html)
        report = self.env.ref("sale.action_report_saleorder")._render_qweb_pdf(
            self.ids, data={"report_type": "pdf"})[0]
        report_attachment = self.env["ir.attachment"].sudo().create({
            "name": "Sale Report",
            "type": "binary",
            "datas": base64.b64encode(report),
            "store_fname": base64.b64encode(report),
            "mimetype": "application/pdf",
            "res_model": "sale.order",
        })
        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)],
                "default_attachment_id": report_attachment.id,
            },
        }