# -*- coding: utf-8 -*-
# Copyright 2019 Therp BV <https://therp.nl>
# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
from odoo.tests.common import TransactionCase
from requests import get
from base64 import b64encode
from lxml.html.soupparser import fromstring
from odoo.addons.base.ir.ir_mail_server import encode_header_param


class TestMailEmbedImage(TransactionCase):

    post_install = True
    at_install = False

    def test_mail_embed_image(self):
        """ The following are tested here:
        1) Create an email with no image, send it.
        2) Create an email with three images, one base64 content, one http
        full url and one of the format `/web/image/.*`

        We assert that nothing has changed on 1) and only the `/web/image/.*`
        has changed in 2)
        """
        model_mail_mail = self.env['mail.mail']
        base_url = self.env['ir.config_parameter'].get_param('web.base.url')
        image_url = base_url + '/mail_embed_image/static/description/icon.png'
        image = get(image_url).content
        body1 = '<div>this is an email</div>'
        email1 = model_mail_mail.create({'body': body1})
        email1.send()
        message_body = self.env.cr.execute(
            "SELECT body FROM mail_message WHERE message_id = %s LIMIT 1",
            (email1.message_id, ))
        self.assertEquals(message_body, body1)
        body2 = """
            <div>
            this is an email
            <img src="base64: %s"></img>
            <img src="%s"></img>
            <img src="%s"></img>
            </div>""" % (
                b64encode(image),
                image_url,
                '/web/image/res.partner/1/image',
            )
        email2 = model_mail_mail.create({'body': body2})
        email2.send()
        message_body = self.env.cr.execute(
            "SELECT body FROM mail_message WHERE message_id = %s LIMIT 1",
            (email1.message_id, ))
        body2final = fromstring(message_body)
        self.assertEquals(len(body2final.xpath('//img')), 3)
        srcs = [x.get('src') for x in body2final.xpath('//img')]
        self.assertIn('base64:', srcs[0])
        self.assertIn('http:', srcs[1])
        self.assertIn('cid:', srcs[2])
        cid = srcs[2][3:]
        self.assertEquals(email2.attachment_ids.name, encode_header_param(cid))