# -*- coding: utf-8 -*-
# Copyright (C) 2014-2016 Andrey Antukh <niwi@niwi.nz>
# Copyright (C) 2014-2016 Jesús Espino <jespinog@gmail.com>
# Copyright (C) 2014-2016 David Barragán <bameda@dbarragan.com>
# Copyright (C) 2014-2016 Alejandro Alonso <alejandro.alonso@kaleidos.net>
# Copyright (C) 2014-2016 Anler Hernández <hello@anler.me>
# 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 uuid
import csv
import pytz

from datetime import datetime, timedelta
from urllib.parse import quote

from unittest import mock
from django.core.urlresolvers import reverse

from taiga.base.utils import json
from taiga.permissions.choices import MEMBERS_PERMISSIONS, ANON_PERMISSIONS
from taiga.projects.occ import OCCResourceMixin
from taiga.projects.userstories import services, models

from .. import factories as f

import pytest
pytestmark = pytest.mark.django_db(transaction=True)


def test_get_userstories_from_bulk():
    data = "User Story #1\nUser Story #2\n"
    userstories = services.get_userstories_from_bulk(data)

    assert len(userstories) == 2
    assert userstories[0].subject == "User Story #1"
    assert userstories[1].subject == "User Story #2"


def test_create_userstories_in_bulk():
    data = "User Story #1\nUser Story #2\n"
    project = f.ProjectFactory.create()

    with mock.patch("taiga.projects.userstories.services.db") as db:
        userstories = services.create_userstories_in_bulk(data, project=project)
        db.save_in_bulk.assert_called_once_with(userstories, None, None)


def test_update_userstories_order_in_bulk():
    project = f.ProjectFactory.create()
    us1 = f.UserStoryFactory.create(project=project, backlog_order=1)
    us2 = f.UserStoryFactory.create(project=project, backlog_order=2)
    data = [{"us_id": us1.id, "order": 1}, {"us_id": us2.id, "order": 2}]

    with mock.patch("taiga.projects.userstories.services.db") as db:
        services.update_userstories_order_in_bulk(data, "backlog_order", project)
        db.update_attr_in_bulk_for_ids.assert_called_once_with({us1.id: 1, us2.id: 2},
                                                                "backlog_order",
                                                                models.UserStory)


def test_create_userstory_with_watchers(client):
    user = f.UserFactory.create()
    user_watcher = f.UserFactory.create()
    project = f.ProjectFactory.create(owner=user)
    f.MembershipFactory.create(project=project, user=user, is_admin=True)
    f.MembershipFactory.create(project=project, user=user_watcher, is_admin=True)
    url = reverse("userstories-list")

    data = {"subject": "Test user story", "project": project.id, "watchers": [user_watcher.id]}
    client.login(user)
    response = client.json.post(url, json.dumps(data))

    assert response.status_code == 201
    assert response.data["watchers"] == []


def test_create_userstory_without_status(client):
    user = f.UserFactory.create()
    project = f.ProjectFactory.create(owner=user)
    status = f.UserStoryStatusFactory.create(project=project)
    project.default_us_status = status
    project.save()

    f.MembershipFactory.create(project=project, user=user, is_admin=True)
    url = reverse("userstories-list")

    data = {"subject": "Test user story", "project": project.id}
    client.login(user)
    response = client.json.post(url, json.dumps(data))
    assert response.status_code == 201
    assert response.data['status'] == project.default_us_status.id


def test_create_userstory_without_default_values(client):
    user = f.UserFactory.create()
    project = f.ProjectFactory.create(owner=user, default_us_status=None)
    f.MembershipFactory.create(project=project, user=user, is_admin=True)
    url = reverse("userstories-list")

    data = {"subject": "Test user story", "project": project.id}
    client.login(user)
    response = client.json.post(url, json.dumps(data))
    assert response.status_code == 201
    assert response.data['status'] is None


def test_api_delete_userstory(client):
    us = f.UserStoryFactory.create()
    f.MembershipFactory.create(project=us.project, user=us.owner, is_admin=True)
    url = reverse("userstories-detail", kwargs={"pk": us.pk})

    client.login(us.owner)
    response = client.delete(url)

    assert response.status_code == 204


def test_api_filter_by_subject_or_ref(client):
    user = f.UserFactory.create()
    project = f.ProjectFactory.create(owner=user)
    f.MembershipFactory.create(project=project, user=user, is_admin=True)

    f.UserStoryFactory.create(project=project)
    f.UserStoryFactory.create(project=project, subject="some random subject")
    url = reverse("userstories-list") + "?q=some subject"

    client.login(project.owner)
    response = client.get(url)
    number_of_stories = len(response.data)

    assert response.status_code == 200
    assert number_of_stories == 1, number_of_stories


def test_api_create_in_bulk_with_status(client):
    project = f.create_project()
    f.MembershipFactory.create(project=project, user=project.owner, is_admin=True)
    url = reverse("userstories-bulk-create")
    data = {
        "bulk_stories": "Story #1\nStory #2",
        "project_id": project.id,
        "status_id": project.default_us_status.id
    }

    client.login(project.owner)
    response = client.json.post(url, json.dumps(data))

    assert response.status_code == 200, response.data
    assert response.data[0]["status"] == project.default_us_status.id


def test_api_create_in_bulk_with_invalid_status(client):
    project = f.create_project()
    status = f.UserStoryStatusFactory.create()
    f.MembershipFactory.create(project=project, user=project.owner, is_admin=True)
    url = reverse("userstories-bulk-create")
    data = {
        "bulk_stories": "Story #1\nStory #2",
        "project_id": project.id,
        "status_id": status.id
    }

    client.login(project.owner)
    response = client.json.post(url, json.dumps(data))

    assert response.status_code == 400, response.data
    assert "status_id" in response.data


def test_api_update_orders_in_bulk(client):
    project = f.create_project()
    f.MembershipFactory.create(project=project, user=project.owner, is_admin=True)
    us1 = f.create_userstory(project=project)
    us2 = f.create_userstory(project=project)

    url1 = reverse("userstories-bulk-update-backlog-order")
    url2 = reverse("userstories-bulk-update-kanban-order")
    url3 = reverse("userstories-bulk-update-sprint-order")

    data = {
        "project_id": project.id,
        "bulk_stories": [{"us_id": us1.id, "order": 1},
                         {"us_id": us2.id, "order": 2}]
    }

    client.login(project.owner)

    response = client.json.post(url1, json.dumps(data))
    assert response.status_code == 200, response.data

    response = client.json.post(url2, json.dumps(data))
    assert response.status_code == 200, response.data

    response = client.json.post(url3, json.dumps(data))
    assert response.status_code == 200, response.data


def test_api_update_orders_in_bulk_invalid_userstories(client):
    project = f.create_project()
    f.MembershipFactory.create(project=project, user=project.owner, is_admin=True)
    us1 = f.create_userstory(project=project)
    us2 = f.create_userstory(project=project)
    us3 = f.create_userstory()

    url1 = reverse("userstories-bulk-update-backlog-order")
    url2 = reverse("userstories-bulk-update-kanban-order")
    url3 = reverse("userstories-bulk-update-sprint-order")

    data = {
        "project_id": project.id,
        "bulk_stories": [{"us_id": us1.id, "order": 1},
                         {"us_id": us2.id, "order": 2},
                         {"us_id": us3.id, "order": 3}]
    }

    client.login(project.owner)

    response = client.json.post(url1, json.dumps(data))
    assert response.status_code == 400, response.data
    assert "bulk_stories" in response.data

    response = client.json.post(url2, json.dumps(data))
    assert response.status_code == 400, response.data
    assert "bulk_stories" in response.data

    response = client.json.post(url3, json.dumps(data))
    assert response.status_code == 400, response.data
    assert "bulk_stories" in response.data


def test_api_update_orders_in_bulk_invalid_status(client):
    project = f.create_project()
    f.MembershipFactory.create(project=project, user=project.owner, is_admin=True)
    status = f.UserStoryStatusFactory.create()
    us1 = f.create_userstory(project=project, status=status)
    us2 = f.create_userstory(project=project, status=us1.status)
    us3 = f.create_userstory(project=project)

    url1 = reverse("userstories-bulk-update-backlog-order")
    url2 = reverse("userstories-bulk-update-kanban-order")
    url3 = reverse("userstories-bulk-update-sprint-order")

    data = {
        "project_id": project.id,
        "status_id": status.id,
        "bulk_stories": [{"us_id": us1.id, "order": 1},
                         {"us_id": us2.id, "order": 2},
                         {"us_id": us3.id, "order": 3}]
    }

    client.login(project.owner)

    response = client.json.post(url1, json.dumps(data))
    assert response.status_code == 400, response.data
    assert "status_id" in response.data
    assert "bulk_stories" in response.data

    response = client.json.post(url2, json.dumps(data))
    assert response.status_code == 400, response.data
    assert "status_id" in response.data
    assert "bulk_stories" in response.data

    response = client.json.post(url3, json.dumps(data))
    assert response.status_code == 400, response.data
    assert "status_id" in response.data
    assert "bulk_stories" in response.data


def test_api_update_orders_in_bulk_invalid_milestione(client):
    project = f.create_project()
    f.MembershipFactory.create(project=project, user=project.owner, is_admin=True)
    mil1 = f.MilestoneFactory.create()
    us1 = f.create_userstory(project=project, milestone=mil1)
    us2 = f.create_userstory(project=project, milestone=mil1)
    us3 = f.create_userstory(project=project)

    url1 = reverse("userstories-bulk-update-backlog-order")
    url2 = reverse("userstories-bulk-update-kanban-order")
    url3 = reverse("userstories-bulk-update-sprint-order")

    data = {
        "project_id": project.id,
        "milestone_id": mil1.id,
        "bulk_stories": [{"us_id": us1.id, "order": 1},
                         {"us_id": us2.id, "order": 2},
                         {"us_id": us3.id, "order": 3}]
    }

    client.login(project.owner)

    response = client.json.post(url1, json.dumps(data))
    assert response.status_code == 400, response.data
    assert "milestone_id" in response.data
    assert "bulk_stories" in response.data

    response = client.json.post(url2, json.dumps(data))
    assert response.status_code == 400, response.data
    assert "milestone_id" in response.data
    assert "bulk_stories" in response.data

    response = client.json.post(url3, json.dumps(data))
    assert response.status_code == 400, response.data
    assert "milestone_id" in response.data
    assert "bulk_stories" in response.data


def test_api_update_milestone_in_bulk(client):
    project = f.create_project()
    f.MembershipFactory.create(project=project, user=project.owner, is_admin=True)
    milestone = f.MilestoneFactory.create(project=project)
    us1 = f.create_userstory(project=project)
    t1 = f.create_task(user_story=us1, project=project)
    t2 = f.create_task(user_story=us1, project=project)
    us2 = f.create_userstory(project=project)
    t3 = f.create_task(user_story=us2, project=project)
    us3 = f.create_userstory(project=project, milestone=milestone, sprint_order=1)
    us4 = f.create_userstory(project=project, milestone=milestone, sprint_order=2)

    url = reverse("userstories-bulk-update-milestone")
    data = {
        "project_id": project.id,
        "milestone_id": milestone.id,
        "bulk_stories": [{"us_id": us1.id, "order": 2},
                         {"us_id": us2.id, "order": 3}]
    }

    client.login(project.owner)

    assert project.milestones.get(id=milestone.id).user_stories.count() == 2
    response = client.json.post(url, json.dumps(data))
    assert response.status_code == 204, response.data
    assert project.milestones.get(id=milestone.id).user_stories.count() == 4

    uss_list = list(project.milestones.get(id=milestone.id).user_stories.order_by("sprint_order")
                                                                        .values_list("id", "sprint_order"))
    assert uss_list == [(us3.id, 1), (us1.id, 2), (us2.id,3), (us4.id,4)]

    tasks_list = list(project.milestones.get(id=milestone.id).tasks.order_by("id")
                                                                   .values_list("id", flat=True))
    assert tasks_list == [t1.id, t2.id, t3.id]


def test_api_update_milestone_in_bulk_invalid_milestone(client):
    project = f.create_project()
    f.MembershipFactory.create(project=project, user=project.owner, is_admin=True)
    us1 = f.create_userstory(project=project)
    us2 = f.create_userstory(project=project)
    m2 = f.MilestoneFactory.create()

    url = reverse("userstories-bulk-update-milestone")
    data = {
        "project_id": project.id,
        "milestone_id": m2.id,
        "bulk_stories": [{"us_id": us1.id, "order": 1},
                         {"us_id": us2.id, "order": 2}]
    }

    client.login(project.owner)

    response = client.json.post(url, json.dumps(data))
    assert response.status_code == 400
    assert "milestone_id" in response.data


def test_api_update_milestone_in_bulk_invalid_userstories(client):
    project = f.create_project()
    f.MembershipFactory.create(project=project, user=project.owner, is_admin=True)
    us1 = f.create_userstory(project=project)
    us2 = f.create_userstory()
    milestone = f.MilestoneFactory.create(project=project)

    url = reverse("userstories-bulk-update-milestone")
    data = {
        "project_id": project.id,
        "milestone_id": milestone.id,
        "bulk_stories": [{"us_id": us1.id, "order": 1},
                         {"us_id": us2.id, "order": 2}]
    }

    client.login(project.owner)

    response = client.json.post(url, json.dumps(data))
    assert response.status_code == 400
    assert "bulk_stories" in response.data


def test_update_userstory_points(client):
    user1 = f.UserFactory.create()
    user2 = f.UserFactory.create()
    project = f.ProjectFactory.create(owner=user1)

    role1 = f.RoleFactory.create(project=project)
    role2 = f.RoleFactory.create(project=project)

    f.MembershipFactory.create(project=project, user=user1, role=role1, is_admin=True)
    f.MembershipFactory.create(project=project, user=user2, role=role2)

    points1 = f.PointsFactory.create(project=project, value=None)
    points2 = f.PointsFactory.create(project=project, value=1)
    points3 = f.PointsFactory.create(project=project, value=2)

    us = f.UserStoryFactory.create(project=project, owner=user1, status__project=project,
                                   milestone__project=project)

    url = reverse("userstories-detail", args=[us.pk])

    client.login(user1)

    # invalid role
    data = {
        "version": us.version,
        "points": {
            str(role1.pk): points1.pk,
            str(role2.pk): points2.pk,
            "222222": points3.pk
        }
    }

    response = client.json.patch(url, json.dumps(data))
    assert response.status_code == 400

    # invalid point
    data = {
        "version": us.version,
        "points": {
            str(role1.pk): 999999,
            str(role2.pk): points2.pk
        }
    }

    response = client.json.patch(url, json.dumps(data))
    assert response.status_code == 400

    # Api should save successful
    data = {
        "version": us.version,
        "points": {
            str(role1.pk): points3.pk,
            str(role2.pk): points2.pk
        }
    }

    response = client.json.patch(url, json.dumps(data))
    assert response.data["points"][str(role1.pk)] == points3.pk


def test_update_userstory_rolepoints_on_add_new_role(client):
    # This test is explicitly without assertions. It simple should
    # works without raising any exception.

    user1 = f.UserFactory.create()
    user2 = f.UserFactory.create()
    project = f.ProjectFactory.create(owner=user1)

    role1 = f.RoleFactory.create(project=project)

    f.MembershipFactory.create(project=project, user=user1, role=role1)

    f.PointsFactory.create(project=project, value=2)

    us = f.UserStoryFactory.create(project=project, owner=user1)
    # url = reverse("userstories-detail", args=[us.pk])
    # client.login(user1)

    role2 = f.RoleFactory.create(project=project, computable=True)
    f.MembershipFactory.create(project=project, user=user2, role=role2)
    us.save()


def test_archived_filter(client):
    user = f.UserFactory.create()
    project = f.ProjectFactory.create(owner=user)
    f.MembershipFactory.create(project=project, user=user, is_admin=True)
    f.UserStoryFactory.create(project=project)
    archived_status = f.UserStoryStatusFactory.create(is_archived=True)
    f.UserStoryFactory.create(status=archived_status, project=project)

    client.login(user)

    url = reverse("userstories-list")

    data = {}
    response = client.get(url, data)
    assert len(response.data) == 2

    data = {"status__is_archived": 0}
    response = client.get(url, data)
    assert len(response.data) == 1

    data = {"status__is_archived": 1}
    response = client.get(url, data)
    assert len(response.data) == 1


def test_filter_by_multiple_status(client):
    user = f.UserFactory.create()
    project = f.ProjectFactory.create(owner=user)
    f.MembershipFactory.create(project=project, user=user, is_admin=True)
    f.UserStoryFactory.create(project=project)
    us1 = f.UserStoryFactory.create(project=project)
    us2 = f.UserStoryFactory.create(project=project)

    client.login(user)

    url = reverse("userstories-list")
    url = "{}?status={},{}".format(reverse("userstories-list"), us1.status.id, us2.status.id)

    data = {}
    response = client.get(url, data)
    assert len(response.data) == 2


def test_get_total_points(client):
    project = f.ProjectFactory.create()

    role1 = f.RoleFactory.create(project=project)
    role2 = f.RoleFactory.create(project=project)

    points1 = f.PointsFactory.create(project=project, value=None)
    points2 = f.PointsFactory.create(project=project, value=1)
    points3 = f.PointsFactory.create(project=project, value=2)

    us_with_points = f.UserStoryFactory.create(project=project)
    us_with_points.role_points.all().delete()
    f.RolePointsFactory.create(user_story=us_with_points, role=role1, points=points2)
    f.RolePointsFactory.create(user_story=us_with_points, role=role2, points=points3)

    assert us_with_points.get_total_points() == 3.0

    us_without_points = f.UserStoryFactory.create(project=project)
    us_without_points.role_points.all().delete()
    f.RolePointsFactory.create(user_story=us_without_points, role=role1, points=points1)
    f.RolePointsFactory.create(user_story=us_without_points, role=role2, points=points1)

    assert us_without_points.get_total_points() is None

    us_mixed = f.UserStoryFactory.create(project=project)
    us_mixed.role_points.all().delete()
    f.RolePointsFactory.create(user_story=us_mixed, role=role1, points=points1)
    f.RolePointsFactory.create(user_story=us_mixed, role=role2, points=points2)

    assert us_mixed.get_total_points() == 1.0


def test_api_filter_by_created_date(client):
    user = f.UserFactory(is_superuser=True)
    one_day_ago = datetime.now(pytz.utc) - timedelta(days=1)

    old_userstory = f.create_userstory(owner=user, created_date=one_day_ago)
    userstory = f.create_userstory(owner=user, subject="test")

    url = reverse("userstories-list") + "?created_date=%s" % (
        quote(userstory.created_date.isoformat())
    )

    client.login(userstory.owner)
    response = client.get(url)
    number_of_userstories = len(response.data)

    assert response.status_code == 200
    assert number_of_userstories == 1
    assert response.data[0]["subject"] == userstory.subject


def test_api_filter_by_created_date__lt(client):
    user = f.UserFactory(is_superuser=True)
    one_day_ago = datetime.now(pytz.utc) - timedelta(days=1)

    old_userstory = f.create_userstory(
        owner=user, created_date=one_day_ago, subject="old test"
    )
    userstory = f.create_userstory(owner=user)

    url = reverse("userstories-list") + "?created_date__lt=%s" % (
        quote(userstory.created_date.isoformat())
    )

    client.login(userstory.owner)
    response = client.get(url)
    number_of_userstories = len(response.data)

    assert response.status_code == 200
    assert response.data[0]["subject"] == old_userstory.subject


def test_api_filter_by_created_date__lte(client):
    user = f.UserFactory(is_superuser=True)
    one_day_ago = datetime.now(pytz.utc) - timedelta(days=1)

    old_userstory = f.create_userstory(owner=user, created_date=one_day_ago)
    userstory = f.create_userstory(owner=user)

    url = reverse("userstories-list") + "?created_date__lte=%s" % (
        quote(userstory.created_date.isoformat())
    )

    client.login(userstory.owner)
    response = client.get(url)
    number_of_userstories = len(response.data)

    assert response.status_code == 200
    assert number_of_userstories == 2


def test_api_filter_by_modified_date__gte(client):
    user = f.UserFactory(is_superuser=True)

    older_userstory = f.create_userstory(owner=user)
    userstory = f.create_userstory(owner=user, subject="test")
    # we have to refresh as it slightly differs
    userstory.refresh_from_db()

    assert older_userstory.modified_date < userstory.modified_date

    url = reverse("userstories-list") + "?modified_date__gte=%s" % (
        quote(userstory.modified_date.isoformat())
    )

    client.login(userstory.owner)
    response = client.get(url)
    number_of_userstories = len(response.data)

    assert response.status_code == 200
    assert number_of_userstories == 1
    assert response.data[0]["subject"] == userstory.subject


def test_api_filter_by_finish_date(client):
    user = f.UserFactory(is_superuser=True)
    one_day_later = datetime.now(pytz.utc) + timedelta(days=1)

    userstory = f.create_userstory(owner=user)
    userstory_to_finish = f.create_userstory(
        owner=user, finish_date=one_day_later, subject="test"
    )

    assert userstory_to_finish.finish_date

    url = reverse("userstories-list") + "?finish_date__gte=%s" % (
        quote(userstory_to_finish.finish_date.isoformat())
    )
    client.login(userstory.owner)
    response = client.get(url)
    number_of_userstories = len(response.data)

    assert response.status_code == 200
    assert number_of_userstories == 1
    assert response.data[0]["subject"] == userstory_to_finish.subject


def test_api_filters_data(client):
    project = f.ProjectFactory.create()
    user1 = f.UserFactory.create(is_superuser=True)
    f.MembershipFactory.create(user=user1, project=project)
    user2 = f.UserFactory.create(is_superuser=True)
    f.MembershipFactory.create(user=user2, project=project)
    user3 = f.UserFactory.create(is_superuser=True)
    f.MembershipFactory.create(user=user3, project=project)

    status0 = f.UserStoryStatusFactory.create(project=project)
    status1 = f.UserStoryStatusFactory.create(project=project)
    status2 = f.UserStoryStatusFactory.create(project=project)
    status3 = f.UserStoryStatusFactory.create(project=project)

    epic0 = f.EpicFactory.create(project=project)
    epic1 = f.EpicFactory.create(project=project)
    epic2 = f.EpicFactory.create(project=project)

    tag0 = "test1test2test3"
    tag1 = "test1"
    tag2 = "test2"
    tag3 = "test3"

    # ------------------------------------------------------------------------------
    # | US    | Status  |  Owner | Assigned To | Tags                | Epic        |
    # |-------#---------#--------#-------------#---------------------#--------------
    # | 0     | status3 |  user2 | None        |      tag1           | epic0       |
    # | 1     | status3 |  user1 | None        |           tag2      | None        |
    # | 2     | status1 |  user3 | None        |      tag1 tag2      | epic1       |
    # | 3     | status0 |  user2 | None        |                tag3 | None        |
    # | 4     | status0 |  user1 | user1       |      tag1 tag2 tag3 | epic0       |
    # | 5     | status2 |  user3 | user1       |                tag3 | None        |
    # | 6     | status3 |  user2 | user1       |      tag1 tag2      | epic0 epic2 |
    # | 7     | status0 |  user1 | user2       |                tag3 | None        |
    # | 8     | status3 |  user3 | user2       |      tag1           | epic2       |
    # | 9     | status1 |  user2 | user3       | tag0                | None        |
    # ------------------------------------------------------------------------------

    us0 = f.UserStoryFactory.create(project=project, owner=user2, assigned_to=None,
                              status=status3, tags=[tag1])
    f.RelatedUserStory.create(user_story=us0, epic=epic0)
    us1 = f.UserStoryFactory.create(project=project, owner=user1, assigned_to=None,
                              status=status3, tags=[tag2])
    us2 = f.UserStoryFactory.create(project=project, owner=user3, assigned_to=None,
                              status=status1, tags=[tag1, tag2])
    f.RelatedUserStory.create(user_story=us2, epic=epic1)
    us3 = f.UserStoryFactory.create(project=project, owner=user2, assigned_to=None,
                              status=status0, tags=[tag3])
    us4 = f.UserStoryFactory.create(project=project, owner=user1, assigned_to=user1,
                              status=status0, tags=[tag1, tag2, tag3])
    f.RelatedUserStory.create(user_story=us4, epic=epic0)
    us5 = f.UserStoryFactory.create(project=project, owner=user3, assigned_to=user1,
                              status=status2, tags=[tag3])
    us6 = f.UserStoryFactory.create(project=project, owner=user2, assigned_to=user1,
                              status=status3, tags=[tag1, tag2])
    f.RelatedUserStory.create(user_story=us6, epic=epic0)
    f.RelatedUserStory.create(user_story=us6, epic=epic2)
    us7 = f.UserStoryFactory.create(project=project, owner=user1, assigned_to=user2,
                              status=status0, tags=[tag3])
    us8 = f.UserStoryFactory.create(project=project, owner=user3, assigned_to=user2,
                              status=status3, tags=[tag1])
    f.RelatedUserStory.create(user_story=us8, epic=epic2)
    us9 = f.UserStoryFactory.create(project=project, owner=user2, assigned_to=user3,
                              status=status1, tags=[tag0])

    url = reverse("userstories-filters-data") + "?project={}".format(project.id)

    client.login(user1)

    # No filter
    response = client.get(url)
    assert response.status_code == 200

    assert next(filter(lambda i: i['id'] == user1.id, response.data["owners"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == user2.id, response.data["owners"]))["count"] == 4
    assert next(filter(lambda i: i['id'] == user3.id, response.data["owners"]))["count"] == 3

    assert next(filter(lambda i: i['id'] is None, response.data["assigned_to"]))["count"] == 4
    assert next(filter(lambda i: i['id'] == user1.id, response.data["assigned_to"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == user2.id, response.data["assigned_to"]))["count"] == 2
    assert next(filter(lambda i: i['id'] == user3.id, response.data["assigned_to"]))["count"] == 1

    assert next(filter(lambda i: i['id'] == status0.id, response.data["statuses"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == status1.id, response.data["statuses"]))["count"] == 2
    assert next(filter(lambda i: i['id'] == status2.id, response.data["statuses"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == status3.id, response.data["statuses"]))["count"] == 4

    assert next(filter(lambda i: i['name'] == tag0, response.data["tags"]))["count"] == 1
    assert next(filter(lambda i: i['name'] == tag1, response.data["tags"]))["count"] == 5
    assert next(filter(lambda i: i['name'] == tag2, response.data["tags"]))["count"] == 4
    assert next(filter(lambda i: i['name'] == tag3, response.data["tags"]))["count"] == 4

    assert next(filter(lambda i: i['id'] is None, response.data["epics"]))["count"] == 5
    assert next(filter(lambda i: i['id'] == epic0.id, response.data["epics"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == epic1.id, response.data["epics"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == epic2.id, response.data["epics"]))["count"] == 2

    # Filter ((status0 or status3)
    response = client.get(url + "&status={},{}".format(status3.id, status0.id))
    assert response.status_code == 200

    assert next(filter(lambda i: i['id'] == user1.id, response.data["owners"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == user2.id, response.data["owners"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == user3.id, response.data["owners"]))["count"] == 1

    assert next(filter(lambda i: i['id'] is None, response.data["assigned_to"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == user1.id, response.data["assigned_to"]))["count"] == 2
    assert next(filter(lambda i: i['id'] == user2.id, response.data["assigned_to"]))["count"] == 2
    assert next(filter(lambda i: i['id'] == user3.id, response.data["assigned_to"]))["count"] == 0

    assert next(filter(lambda i: i['id'] == status0.id, response.data["statuses"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == status1.id, response.data["statuses"]))["count"] == 2
    assert next(filter(lambda i: i['id'] == status2.id, response.data["statuses"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == status3.id, response.data["statuses"]))["count"] == 4

    assert next(filter(lambda i: i['name'] == tag0, response.data["tags"]))["count"] == 0
    assert next(filter(lambda i: i['name'] == tag1, response.data["tags"]))["count"] == 4
    assert next(filter(lambda i: i['name'] == tag2, response.data["tags"]))["count"] == 3
    assert next(filter(lambda i: i['name'] == tag3, response.data["tags"]))["count"] == 3

    assert next(filter(lambda i: i['id'] is None, response.data["epics"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == epic0.id, response.data["epics"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == epic1.id, response.data["epics"]))["count"] == 0
    assert next(filter(lambda i: i['id'] == epic2.id, response.data["epics"]))["count"] == 2

    # Filter ((tag1 and tag2) and (user1 or user2))
    response = client.get(url + "&tags={},{}&owner={},{}".format(tag1, tag2, user1.id, user2.id))
    assert response.status_code == 200

    assert next(filter(lambda i: i['id'] == user1.id, response.data["owners"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == user2.id, response.data["owners"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == user3.id, response.data["owners"]))["count"] == 1

    assert next(filter(lambda i: i['id'] is None, response.data["assigned_to"]))["count"] == 0
    assert next(filter(lambda i: i['id'] == user1.id, response.data["assigned_to"]))["count"] == 2
    assert next(filter(lambda i: i['id'] == user2.id, response.data["assigned_to"]))["count"] == 0
    assert next(filter(lambda i: i['id'] == user3.id, response.data["assigned_to"]))["count"] == 0

    assert next(filter(lambda i: i['id'] == status0.id, response.data["statuses"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == status1.id, response.data["statuses"]))["count"] == 0
    assert next(filter(lambda i: i['id'] == status2.id, response.data["statuses"]))["count"] == 0
    assert next(filter(lambda i: i['id'] == status3.id, response.data["statuses"]))["count"] == 1

    assert next(filter(lambda i: i['name'] == tag0, response.data["tags"]))["count"] == 0
    assert next(filter(lambda i: i['name'] == tag1, response.data["tags"]))["count"] == 2
    assert next(filter(lambda i: i['name'] == tag2, response.data["tags"]))["count"] == 2
    assert next(filter(lambda i: i['name'] == tag3, response.data["tags"]))["count"] == 1

    assert next(filter(lambda i: i['id'] is None, response.data["epics"]))["count"] == 0
    assert next(filter(lambda i: i['id'] == epic0.id, response.data["epics"]))["count"] == 2
    assert next(filter(lambda i: i['id'] == epic1.id, response.data["epics"]))["count"] == 0
    assert next(filter(lambda i: i['id'] == epic2.id, response.data["epics"]))["count"] == 1

    # Filter (epic0 epic2)
    response = client.get(url + "&epic={},{}".format(epic0.id, epic2.id))
    assert response.status_code == 200

    assert next(filter(lambda i: i['id'] == user1.id, response.data["owners"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == user2.id, response.data["owners"]))["count"] == 2
    assert next(filter(lambda i: i['id'] == user3.id, response.data["owners"]))["count"] == 1

    assert next(filter(lambda i: i['id'] is None, response.data["assigned_to"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == user1.id, response.data["assigned_to"]))["count"] == 2
    assert next(filter(lambda i: i['id'] == user2.id, response.data["assigned_to"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == user3.id, response.data["assigned_to"]))["count"] == 0

    assert next(filter(lambda i: i['id'] == status0.id, response.data["statuses"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == status1.id, response.data["statuses"]))["count"] == 0
    assert next(filter(lambda i: i['id'] == status2.id, response.data["statuses"]))["count"] == 0
    assert next(filter(lambda i: i['id'] == status3.id, response.data["statuses"]))["count"] == 3

    assert next(filter(lambda i: i['name'] == tag0, response.data["tags"]))["count"] == 0
    assert next(filter(lambda i: i['name'] == tag1, response.data["tags"]))["count"] == 4
    assert next(filter(lambda i: i['name'] == tag2, response.data["tags"]))["count"] == 2
    assert next(filter(lambda i: i['name'] == tag3, response.data["tags"]))["count"] == 1

    assert next(filter(lambda i: i['id'] is None, response.data["epics"]))["count"] == 5
    assert next(filter(lambda i: i['id'] == epic0.id, response.data["epics"]))["count"] == 3
    assert next(filter(lambda i: i['id'] == epic1.id, response.data["epics"]))["count"] == 1
    assert next(filter(lambda i: i['id'] == epic2.id, response.data["epics"]))["count"] == 2


def test_get_invalid_csv(client):
    url = reverse("userstories-csv")

    response = client.get(url)
    assert response.status_code == 404

    response = client.get("{}?uuid={}".format(url, "not-valid-uuid"))
    assert response.status_code == 404


def test_get_valid_csv(client):
    url = reverse("userstories-csv")
    project = f.ProjectFactory.create(userstories_csv_uuid=uuid.uuid4().hex)

    response = client.get("{}?uuid={}".format(url, project.userstories_csv_uuid))
    assert response.status_code == 200


def test_custom_fields_csv_generation():
    project = f.ProjectFactory.create(userstories_csv_uuid=uuid.uuid4().hex)
    attr = f.UserStoryCustomAttributeFactory.create(project=project, name="attr1", description="desc")
    us = f.UserStoryFactory.create(project=project)
    attr_values = us.custom_attributes_values
    attr_values.attributes_values = {str(attr.id): "val1"}
    attr_values.save()
    queryset = project.user_stories.all()
    data = services.userstories_to_csv(project, queryset)
    data.seek(0)
    reader = csv.reader(data)
    row = next(reader)
    assert row[28] == attr.name
    row = next(reader)
    assert row[28] == "val1"


def test_update_userstory_respecting_watchers(client):
    watching_user = f.create_user()
    project = f.ProjectFactory.create()
    us = f.UserStoryFactory.create(project=project, status__project=project, milestone__project=project)
    us.add_watcher(watching_user)
    f.MembershipFactory.create(project=us.project, user=us.owner, is_admin=True)
    f.MembershipFactory.create(project=us.project, user=watching_user)

    client.login(user=us.owner)
    url = reverse("userstories-detail", kwargs={"pk": us.pk})
    data = {"subject": "Updating test", "version": 1}

    response = client.json.patch(url, json.dumps(data))
    assert response.status_code == 200
    assert response.data["subject"] == "Updating test"
    assert response.data["watchers"] == [watching_user.id]


def test_update_userstory_update_watchers(client):
    watching_user = f.create_user()
    project = f.ProjectFactory.create()
    us = f.UserStoryFactory.create(project=project, status__project=project, milestone__project=project)
    f.MembershipFactory.create(project=us.project, user=us.owner, is_admin=True)
    f.MembershipFactory.create(project=us.project, user=watching_user)

    client.login(user=us.owner)
    url = reverse("userstories-detail", kwargs={"pk": us.pk})
    data = {"watchers": [watching_user.id], "version": 1}

    response = client.json.patch(url, json.dumps(data))
    assert response.status_code == 200
    assert response.data["watchers"] == [watching_user.id]
    watcher_ids = list(us.get_watchers().values_list("id", flat=True))
    assert watcher_ids == [watching_user.id]


def test_update_userstory_remove_watchers(client):
    watching_user = f.create_user()
    project = f.ProjectFactory.create()
    us = f.UserStoryFactory.create(project=project, status__project=project, milestone__project=project)
    us.add_watcher(watching_user)
    f.MembershipFactory.create(project=us.project, user=us.owner, is_admin=True)
    f.MembershipFactory.create(project=us.project, user=watching_user)

    client.login(user=us.owner)
    url = reverse("userstories-detail", kwargs={"pk": us.pk})
    data = {"watchers": [], "version": 1}

    response = client.json.patch(url, json.dumps(data))
    assert response.status_code == 200
    assert response.data["watchers"] == []
    watcher_ids = list(us.get_watchers().values_list("id", flat=True))
    assert watcher_ids == []


def test_update_userstory_update_tribe_gig(client):
    project = f.ProjectFactory.create()
    us = f.UserStoryFactory.create(project=project, status__project=project, milestone__project=project)
    f.MembershipFactory.create(project=us.project, user=us.owner, is_admin=True)

    url = reverse("userstories-detail", kwargs={"pk": us.pk})
    data = {
        "tribe_gig": {
            "id": 2,
            "title": "This is a gig test title"
        },
        "version": 1
    }

    client.login(user=us.owner)
    response = client.json.patch(url, json.dumps(data))

    assert response.status_code == 200
    assert response.data["tribe_gig"] == data["tribe_gig"]


def test_get_user_stories_including_tasks(client):
    user = f.UserFactory.create()
    project = f.ProjectFactory.create(owner=user)
    f.MembershipFactory.create(project=project, user=user, is_admin=True)

    user_story = f.UserStoryFactory.create(project=project)
    f.TaskFactory.create(user_story=user_story)
    url = reverse("userstories-list")

    client.login(project.owner)

    response = client.get(url)
    assert response.status_code == 200
    assert response.data[0].get("tasks") == []

    url = reverse("userstories-list") + "?include_tasks=1"
    response = client.get(url)
    assert response.status_code == 200
    assert len(response.data[0].get("tasks")) == 1


def test_get_user_stories_including_attachments(client):
    user = f.UserFactory.create()
    project = f.ProjectFactory.create(owner=user)
    f.MembershipFactory.create(project=project, user=user, is_admin=True)

    user_story = f.UserStoryFactory.create(project=project)
    f.UserStoryAttachmentFactory(project=project, content_object=user_story)
    url = reverse("userstories-list")

    client.login(project.owner)

    response = client.get(url)
    assert response.status_code == 200
    assert response.data[0].get("attachments") == []

    url = reverse("userstories-list") + "?include_attachments=1"
    response = client.get(url)
    assert response.status_code == 200
    assert len(response.data[0].get("attachments")) == 1


def test_api_validator_assigned_to_when_update_userstories(client):
    project = f.create_project(anon_permissions=list(map(lambda x: x[0], ANON_PERMISSIONS)),
                               public_permissions=list(map(lambda x: x[0], ANON_PERMISSIONS)))
    project_member_owner = f.MembershipFactory.create(project=project,
                                                      user=project.owner,
                                                      is_admin=True,
                                                      role__project=project,
                                                      role__permissions=list(map(lambda x: x[0], MEMBERS_PERMISSIONS)))
    project_member = f.MembershipFactory.create(project=project,
                                                is_admin=True,
                                                role__project=project,
                                                role__permissions=list(map(lambda x: x[0], MEMBERS_PERMISSIONS)))
    project_no_member = f.MembershipFactory.create(is_admin=True)
    userstory = f.create_userstory(project=project, owner=project.owner, status=project.us_statuses.all()[0])

    url = reverse('userstories-detail', kwargs={"pk": userstory.pk})

    # assign
    data = {
        "assigned_to": project_member.user.id,
    }

    with mock.patch.object(OCCResourceMixin, "_validate_and_update_version"):
        client.login(project.owner)

        response = client.json.patch(url, json.dumps(data))
        assert response.status_code == 200, response.data
        assert "assigned_to" in response.data
        assert response.data["assigned_to"] == project_member.user.id

    # unassign
    data = {
        "assigned_to": None,
    }

    with mock.patch.object(OCCResourceMixin, "_validate_and_update_version"):
        client.login(project.owner)

        response = client.json.patch(url, json.dumps(data))
        assert response.status_code == 200, response.data
        assert "assigned_to" in response.data
        assert response.data["assigned_to"] == None

    # assign to invalid user
    data = {
        "assigned_to": project_no_member.user.id,
    }

    with mock.patch.object(OCCResourceMixin, "_validate_and_update_version"):
        client.login(project.owner)

        response = client.json.patch(url, json.dumps(data))
        assert response.status_code == 400, response.data


def test_api_validator_assigned_to_when_create_userstories(client):
    project = f.create_project(anon_permissions=list(map(lambda x: x[0], ANON_PERMISSIONS)),
                               public_permissions=list(map(lambda x: x[0], ANON_PERMISSIONS)))
    project_member_owner = f.MembershipFactory.create(project=project,
                                                      user=project.owner,
                                                      is_admin=True,
                                                      role__project=project,
                                                      role__permissions=list(map(lambda x: x[0], MEMBERS_PERMISSIONS)))
    project_member = f.MembershipFactory.create(project=project,
                                                is_admin=True,
                                                role__project=project,
                                                role__permissions=list(map(lambda x: x[0], MEMBERS_PERMISSIONS)))
    project_no_member = f.MembershipFactory.create(is_admin=True)

    url = reverse('userstories-list')

    # assign
    data = {
        "subject": "test",
        "project": project.id,
        "assigned_to": project_member.user.id,
    }

    with mock.patch.object(OCCResourceMixin, "_validate_and_update_version"):
        client.login(project.owner)

        response = client.json.post(url, json.dumps(data))
        assert response.status_code == 201, response.data
        assert "assigned_to" in response.data
        assert response.data["assigned_to"] == project_member.user.id

    # unassign
    data = {
        "subject": "test",
        "project": project.id,
        "assigned_to": None,
    }

    with mock.patch.object(OCCResourceMixin, "_validate_and_update_version"):
        client.login(project.owner)

        response = client.json.post(url, json.dumps(data))
        assert response.status_code == 201, response.data
        assert "assigned_to" in response.data
        assert response.data["assigned_to"] == None

    # assign to invalid user
    data = {
        "subject": "test",
        "project": project.id,
        "assigned_to": project_no_member.user.id,
    }

    with mock.patch.object(OCCResourceMixin, "_validate_and_update_version"):
        client.login(project.owner)

        response = client.json.post(url, json.dumps(data))
        assert response.status_code == 400, response.data
