# Copyright 2016 Tecnativa - Antonio Espinosa
# Copyright 2017 Tecnativa - David Vidal
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).

from odoo.tools import mute_logger
from odoo.tests.common import TransactionCase
from odoo.exceptions import UserError, ValidationError
import mock

_packagepath = 'odoo.addons.mail_tracking_mailgun'


class TestMailgun(TransactionCase):
    def mail_send(self):
        mail = self.env['mail.mail'].create({
            'subject': 'Test subject',
            'email_from': 'from@example.com',
            'email_to': self.recipient,
            'body_html': '<p>This is a test message</p>',
        })
        mail.send()
        # Search tracking created
        tracking_email = self.env['mail.tracking.email'].search([
            ('mail_id', '=', mail.id),
        ])
        return mail, tracking_email

    def setUp(self):
        super(TestMailgun, self).setUp()
        self.recipient = 'to@example.com'
        self.mail, self.tracking_email = self.mail_send()
        self.api_key = 'key-12345678901234567890123456789012'
        self.domain = 'example.com'
        self.token = 'f1349299097a51b9a7d886fcb5c2735b426ba200ada6e9e149'
        self.timestamp = '1471021089'
        self.signature = ('4fb6d4dbbe10ce5d620265dcd7a3c0b8'
                          'ca0dede1433103891bc1ae4086e9d5b2')
        self.env['ir.config_parameter'].set_param(
            'mailgun.apikey', self.api_key)
        self.env['ir.config_parameter'].set_param(
            'mail.catchall.domain', self.domain)
        self.env['ir.config_parameter'].set_param(
            'mailgun.validation_key', self.api_key)
        self.env['ir.config_parameter'].set_param(
            'mailgun.auto_check_partner_email', '')
        self.event = {
            'Message-Id': '<xxx.xxx.xxx-openerp-xxx-res.partner@test_db>',
            'X-Mailgun-Sid': 'WyIwNjgxZSIsICJ0b0BleGFtcGxlLmNvbSIsICI3MG'
                             'I0MWYiXQ==',
            'token': self.token,
            'timestamp': self.timestamp,
            'signature': self.signature,
            'domain': 'example.com',
            'message-headers': '[]',
            'recipient': self.recipient,
            'odoo_db': self.env.cr.dbname,
            'tracking_email_id': '%s' % self.tracking_email.id
        }
        self.metadata = {
            'ip': '127.0.0.1',
            'user_agent': False,
            'os_family': False,
            'ua_family': False,
        }
        self.partner = self.env['res.partner'].create({
            'name': 'Mr. Odoo',
            'email': 'mrodoo@example.com',
        })
        self.response = {
            "items": [{
                "log-level": "info",
                "id": "oXAVv5URCF-dKv8c6Sa7T",
                "timestamp": 1509119329.0,
                "message": {
                    "headers": {
                        "to": "test@test.com",
                        "message-id": "test-id@f187c54734e8",
                        "from": "Mr. Odoo <mrodoo@odoo.com>",
                        "subject": "This is a test"
                    },
                },
                "event": "delivered",
                "recipient": "to@example.com",
            }]
        }

    def event_search(self, event_type):
        event = self.env['mail.tracking.event'].search([
            ('tracking_email_id', '=', self.tracking_email.id),
            ('event_type', '=', event_type),
        ])
        self.assertTrue(event)
        return event

    def test_no_api_key(self):
        self.env['ir.config_parameter'].set_param('mailgun.apikey', '')
        self.test_event_delivered()
        with self.assertRaises(ValidationError):
            self.env['mail.tracking.email']._mailgun_values()

    def test_no_domain(self):
        self.env['ir.config_parameter'].set_param('mail.catchall.domain', '')
        self.test_event_delivered()
        with self.assertRaises(ValidationError):
            self.env['mail.tracking.email']._mailgun_values()
        # now we set an specific domain for Mailgun:
        # i.e: we configure new EU zone without loosing old domain statistics
        self.env['ir.config_parameter'].set_param(
            'mailgun.domain', 'eu.example.com')
        self.test_event_delivered()

    @mute_logger('odoo.addons.mail_tracking_mailgun.models'
                 '.mail_tracking_email')
    def test_bad_signature(self):
        self.event.update({
            'event': 'delivered',
            'signature': 'bad_signature',
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('ERROR: Signature', response)

    @mute_logger('odoo.addons.mail_tracking_mailgun.models'
                 '.mail_tracking_email')
    def test_bad_event_type(self):
        self.event.update({
            'event': 'bad_event',
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('ERROR: Event type not supported', response)

    @mute_logger('odoo.addons.mail_tracking_mailgun.models'
                 '.mail_tracking_email')
    def test_bad_db(self):
        self.event.update({
            'event': 'delivered',
            'odoo_db': 'bad_db',
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('ERROR: Invalid DB', response)

    def test_bad_ts(self):
        timestamp = '7a'  # Now time will be used instead
        signature = ('06cc05680f6e8110e59b41152b2d1c0f'
                     '1045d755ef2880ff922344325c89a6d4')
        self.event.update({
            'event': 'delivered',
            'timestamp': timestamp,
            'signature': signature,
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('OK', response)

    @mute_logger('odoo.addons.mail_tracking_mailgun.models'
                 '.mail_tracking_email')
    def test_tracking_not_found(self):
        self.event.update({
            'event': 'delivered',
            'tracking_email_id': 'bad_id',
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('ERROR: Tracking not found', response)

    # https://documentation.mailgun.com/user_manual.html#tracking-deliveries
    def test_event_delivered(self):
        self.event.update({
            'event': 'delivered',
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('OK', response)
        events = self.event_search('delivered')
        for event in events:
            self.assertEqual(event.timestamp, float(self.timestamp))
            self.assertEqual(event.recipient, self.recipient)

    # https://documentation.mailgun.com/user_manual.html#tracking-opens
    def test_event_opened(self):
        ip = '127.0.0.1'
        user_agent = 'Odoo Test/8.0 Gecko Firefox/11.0'
        os_family = 'Linux'
        ua_family = 'Firefox'
        ua_type = 'browser'
        self.event.update({
            'event': 'opened',
            'city': 'Mountain View',
            'country': 'US',
            'region': 'CA',
            'client-name': ua_family,
            'client-os': os_family,
            'client-type': ua_type,
            'device-type': 'desktop',
            'ip': ip,
            'user-agent': user_agent,
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('OK', response)
        event = self.event_search('open')
        self.assertEqual(event.timestamp, float(self.timestamp))
        self.assertEqual(event.recipient, self.recipient)
        self.assertEqual(event.ip, ip)
        self.assertEqual(event.user_agent, user_agent)
        self.assertEqual(event.os_family, os_family)
        self.assertEqual(event.ua_family, ua_family)
        self.assertEqual(event.ua_type, ua_type)
        self.assertEqual(event.mobile, False)
        self.assertEqual(event.user_country_id.code, 'US')

    # https://documentation.mailgun.com/user_manual.html#tracking-clicks
    def test_event_clicked(self):
        ip = '127.0.0.1'
        user_agent = 'Odoo Test/8.0 Gecko Firefox/11.0'
        os_family = 'Linux'
        ua_family = 'Firefox'
        ua_type = 'browser'
        url = 'https://odoo-community.org'
        self.event.update({
            'event': 'clicked',
            'city': 'Mountain View',
            'country': 'US',
            'region': 'CA',
            'client-name': ua_family,
            'client-os': os_family,
            'client-type': ua_type,
            'device-type': 'tablet',
            'ip': ip,
            'user-agent': user_agent,
            'url': url,
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata, event_type='click')
        self.assertEqual('OK', response)
        event = self.event_search('click')
        self.assertEqual(event.timestamp, float(self.timestamp))
        self.assertEqual(event.recipient, self.recipient)
        self.assertEqual(event.ip, ip)
        self.assertEqual(event.user_agent, user_agent)
        self.assertEqual(event.os_family, os_family)
        self.assertEqual(event.ua_family, ua_family)
        self.assertEqual(event.ua_type, ua_type)
        self.assertEqual(event.mobile, True)
        self.assertEqual(event.url, url)

    # https://documentation.mailgun.com/user_manual.html#tracking-unsubscribes
    def test_event_unsubscribed(self):
        ip = '127.0.0.1'
        user_agent = 'Odoo Test/8.0 Gecko Firefox/11.0'
        os_family = 'Linux'
        ua_family = 'Firefox'
        ua_type = 'browser'
        self.event.update({
            'event': 'unsubscribed',
            'city': 'Mountain View',
            'country': 'US',
            'region': 'CA',
            'client-name': ua_family,
            'client-os': os_family,
            'client-type': ua_type,
            'device-type': 'mobile',
            'ip': ip,
            'user-agent': user_agent,
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('OK', response)
        event = self.event_search('unsub')
        self.assertEqual(event.timestamp, float(self.timestamp))
        self.assertEqual(event.recipient, self.recipient)
        self.assertEqual(event.ip, ip)
        self.assertEqual(event.user_agent, user_agent)
        self.assertEqual(event.os_family, os_family)
        self.assertEqual(event.ua_family, ua_family)
        self.assertEqual(event.ua_type, ua_type)
        self.assertEqual(event.mobile, True)

    # https://documentation.mailgun.com/
    #   user_manual.html#tracking-spam-complaints
    def test_event_complained(self):
        self.event.update({
            'event': 'complained',
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('OK', response)
        event = self.event_search('spam')
        self.assertEqual(event.timestamp, float(self.timestamp))
        self.assertEqual(event.recipient, self.recipient)
        self.assertEqual(event.error_type, 'spam')

    # https://documentation.mailgun.com/user_manual.html#tracking-bounces
    def test_event_bounced(self):
        code = '550'
        error = ("5.1.1 The email account does not exist.\n"
                 "5.1.1 double-checking the recipient's email address")
        notification = "Please, check recipient's email address"
        self.event.update({
            'event': 'bounced',
            'code': code,
            'error': error,
            'notification': notification,
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('OK', response)
        event = self.event_search('hard_bounce')
        self.assertEqual(event.timestamp, float(self.timestamp))
        self.assertEqual(event.recipient, self.recipient)
        self.assertEqual(event.error_type, code)
        self.assertEqual(event.error_description, error)
        self.assertEqual(event.error_details, notification)

    # https://documentation.mailgun.com/user_manual.html#tracking-failures
    def test_event_dropped(self):
        reason = 'hardfail'
        code = '605'
        description = 'Not delivering to previously bounced address'
        self.event.update({
            'event': 'dropped',
            'reason': reason,
            'code': code,
            'description': description,
        })
        response = self.env['mail.tracking.email'].event_process(
            None, self.event, self.metadata)
        self.assertEqual('OK', response)
        event = self.event_search('reject')
        self.assertEqual(event.timestamp, float(self.timestamp))
        self.assertEqual(event.recipient, self.recipient)
        self.assertEqual(event.error_type, reason)
        self.assertEqual(event.error_description, code)
        self.assertEqual(event.error_details, description)

    @mock.patch(_packagepath + '.models.res_partner.requests')
    def test_email_validity(self, mock_request):
        self.partner.email_bounced = False
        mock_request.get.return_value.apparent_encoding = 'ascii'
        mock_request.get.return_value.status_code = 200
        mock_request.get.return_value.json.return_value = {
            'is_valid': True,
            'mailbox_verification': 'true',
        }
        # Trigger email auto validation in partner
        self.env['ir.config_parameter'].set_param(
            'mailgun.auto_check_partner_email', 'True')
        self.partner.email = 'info@tecnativa.com'
        self.assertFalse(self.partner.email_bounced)
        self.partner.email = 'xoxoxoxo@tecnativa.com'
        # Not a valid mailbox
        mock_request.get.return_value.json.return_value = {
            'is_valid': True,
            'mailbox_verification': 'false',
        }
        with self.assertRaises(UserError):
            self.partner.check_email_validity()
        # Not a valid mail address
        mock_request.get.return_value.json.return_value = {
            'is_valid': False,
            'mailbox_verification': 'false',
        }
        with self.assertRaises(UserError):
            self.partner.check_email_validity()
        # Unable to fully validate
        mock_request.get.return_value.json.return_value = {
            'is_valid': True,
            'mailbox_verification': 'unknown',
        }
        with self.assertRaises(UserError):
            self.partner.check_email_validity()
        self.assertTrue(self.partner.email_bounced)

    @mock.patch(_packagepath + '.models.res_partner.requests')
    def test_email_validity_exceptions(self, mock_request):
        mock_request.get.return_value.status_code = 404
        with self.assertRaises(UserError):
            self.partner.check_email_validity()
        self.env['ir.config_parameter'].set_param('mailgun.validation_key', '')
        with self.assertRaises(UserError):
            self.partner.check_email_validity()

    @mock.patch(_packagepath + '.models.res_partner.requests')
    def test_bounced(self, mock_request):
        self.partner.email_bounced = True
        mock_request.get.return_value.status_code = 404
        self.partner.check_email_bounced()
        self.assertFalse(self.partner.email_bounced)
        mock_request.get.return_value.status_code = 200
        self.partner.force_set_bounced()
        self.partner.check_email_bounced()
        self.assertTrue(self.partner.email_bounced)
        mock_request.delete.return_value.status_code = 200
        self.partner.force_unset_bounced()
        self.assertFalse(self.partner.email_bounced)

    def test_email_bounced_set(self):
        message_number = len(self.partner.message_ids) + 1
        self.partner._email_bounced_set('test_error', False)
        self.assertEqual(len(self.partner.message_ids), message_number)
        self.partner.email = ""
        self.partner._email_bounced_set('test_error', False)
        self.assertEqual(len(self.partner.message_ids), message_number)

    @mock.patch(_packagepath + '.models.mail_tracking_email.requests')
    def test_manual_check(self, mock_request):
        mock_request.get.return_value.json.return_value = self.response
        mock_request.get.return_value.status_code = 200
        self.tracking_email.action_manual_check_mailgun()
        event = self.env['mail.tracking.event'].search(
            [('mailgun_id', '=', self.response['items'][0]['id'])])
        self.assertEqual(event.event_type, self.response['items'][0]['event'])

    @mock.patch(_packagepath + '.models.mail_tracking_email.requests')
    def test_manual_check_exceptions(self, mock_request):
        mock_request.get.return_value.status_code = 404
        with self.assertRaises(ValidationError):
            self.tracking_email.action_manual_check_mailgun()
        mock_request.get.return_value.status_code = 200
        mock_request.get.return_value.json.return_value = {}
        with self.assertRaises(ValidationError):
            self.tracking_email.action_manual_check_mailgun()