from random import randint
import json

from django.test import TestCase, Client
from django.core import serializers
from django.contrib.auth.models import User, Permission
from rest_framework.test import APIClient

from rp.models import Article
from rp.factories import ArticleFactory
from rp.apps import RpConfig
from rp.views.articles import ArticleList


class TestArticle(TestCase):
    def setUp(self):
        self.article = ArticleFactory(archive=False, quote=False, speak=False)
        self.newarticle = ArticleFactory(status='NEW',
                                         archive=False,
                                         quote=False,
                                         speak=False)

    def test_init(self):
        assert RpConfig.name == "rp"

    def test_article(self):
        assert type(self.article) == Article
        assert str(self.article) == self.article.title

    def test_recover(self):
        article = ArticleFactory(status='NEW')
        article.recover()
        assert article.status == 'DRAFT'

        article = ArticleFactory(status='REJECTED')
        article.recover()
        assert article.status == 'DRAFT'

    def test_add_new_url(self):
        article = Article.add_new_url(url='https://www.example.org/article')
        assert article.status == 'NEW'
        assert article.score == 1

        article2 = Article.add_new_url(url='https://www.example.org/article',
                                       tags=["Tag 1", "Tag 2"])
        assert article2.status == 'NEW'
        assert article2.score == 2
        assert set(article2.tags.names()) == {"Tag 1", "Tag 2"}

        article3 = Article.add_new_url(url='https://www.example.org/article', 
                                       tags=["Merged Tag"])

    def test_flags(self):
        assert not self.article.archive
        assert not self.article.quote
        assert not self.article.speak

    def test_toggle_flags(self):
        self.newarticle.toggle_archive()
        assert self.newarticle.archive
        self.newarticle.toggle_archive()
        assert not self.newarticle.archive

        self.newarticle.toggle_quote()
        assert self.newarticle.quote
        self.newarticle.toggle_quote()
        assert not self.newarticle.quote

        self.newarticle.toggle_speak()
        assert self.newarticle.speak
        self.newarticle.toggle_speak()
        assert not self.newarticle.speak

    def test_set_flags(self):
        # Method signature is set_flags(boolean: archive = False,
        #                               boolean: speak = False,
        #                               boolean: quote = False)
        # All falsg set to their default values
        self.newarticle.set_flags()
        assert not self.newarticle.archive
        assert not self.newarticle.speak
        assert not self.newarticle.quote

        self.newarticle.set_flags(speak=True)
        assert not self.newarticle.archive
        assert self.newarticle.speak
        assert not self.newarticle.quote

        self.newarticle.set_flags(quote=True)
        assert not self.newarticle.archive
        assert not self.newarticle.speak
        assert self.newarticle.quote

        self.newarticle.set_flags(quote=True, speak=True)
        assert not self.newarticle.archive
        assert self.newarticle.speak
        assert self.newarticle.quote

    def test_update(self):
        old_title = self.article.title
        self.article.title = old_title[::-1]
        self.article.save()
        self.article.refresh_from_db()
        assert self.article.title != old_title

    def test_unpublish(self):
        a = ArticleFactory(status='PUBLISHED')
        a.unpublish()
        assert a.status == 'DRAFT'


class TestArticleViews(TestCase):
    def setUp(self):
        self.client = Client()
        self.articles = [ArticleFactory()
                         for i in range(0, 2 * ArticleList.paginate_by)]
        self.user = User.objects.create(username="test",
                                        email="test@example.org",
                                        password="test")
        for a in self.articles:
            a.save()

    def test_list_fr(self):
        # ArticleFactory use english by default, so we should have
        # no objects
        r = self.client.get('/rp/')
        assert len(r.context['object_list']) == 0

    def test_list_en(self):
        r = self.client.get('/rp/international')
        if r.context['is_paginated']:
            assert len(r.context['object_list']) == ArticleList.paginate_by
        else:
            assert len(r.context['object_list']) == 0

    def test_filter_tag(self):
        tag = 'Tag 1'

        r = self.client.get('/rp/by-tag/{}'.format(tag))
        if r.context['is_paginated']:
            assert len(r.context['object_list']) == ArticleList.paginate_by
        else:
            assert len(r.context['object_list']) == 0
        r = self.client.get('/rp/by-tag/zogzog')
        assert len(r.context['object_list']) == 0

    def test_search_view(self):
        article = ArticleFactory(title=u'Zog Zog chez les schtroumphs',
                                 lang='FR',
                                 archive=False,
                                 status='PUBLISHED')
        article.save()

        r = self.client.get('/rp/', {'q': 'Zog Zog'})
        assert len(r.context['article_list']) == 1
        r = self.client.get('/rp/', {'q': 'Gargamel was here'})
        assert len(r.context['article_list']) == 0

    def test_search_view_archived(self):
        archive = ArticleFactory(archive=True,
                                 lang='FR',
                                 status='PUBLISHED')

        r = self.client.get('/rp/', {'q': '', 'archive': 'true'})
        assert len(r.context['article_list']) == 1
        assert r.context['article_list'][0] == archive

        r = self.client.get('/rp/', {'archive': 'false'})
        assert len(r.context['article_list']) == 0

    def test_search_view_speaks(self):
        speak = ArticleFactory(speak=True,
                               archive=False,
                               lang='FR',
                               status='PUBLISHED')

        r = self.client.get('/rp/', {'q': '', 'speak': 'true'})
        assert len(r.context['article_list']) == 1
        assert r.context['article_list'][0] == speak

        r = self.client.get('/rp/', {'speak': 'false'})
        assert len(r.context['article_list']) == 0

    def test_search_view_quoted(self):
        quote = ArticleFactory(quote=True,
                               archive=False,
                               lang='FR',
                               status='PUBLISHED')

        r = self.client.get('/rp/', {'q': '', 'quote': 'true'})
        assert len(r.context['article_list']) == 1
        assert r.context['article_list'][0] == quote

        r = self.client.get('/rp/', {'quote': 'false'})
        assert len(r.context['article_list']) == 0

    def test_detail_view(self):
        # Let's find a published article
        self.client.force_login(user=self.user)
        a = self.articles[0]
        r = self.client.get('/rp/article/view/{}'.format(a.pk))
        assert r.context['object'] == a

    def test_article_edit_unauth(self):
        a = self.articles[0]
        r = self.client.post('/rp/article/edit/{}'.format(a.pk))
        assert r.status_code == 403

    def test_article_edit(self):
        self.user.user_permissions.add(Permission.objects.get(
            codename='can_edit'))
        self.client.force_login(user=self.user)

        pk = self.articles[0].pk
        a = {'title': 'Zog Zog',
             'status': 'NEW',
             'lang': 'FR',
             'url': 'https://www.example.org/',
             'tags': ["Merged Tag"]}
        r = self.client.post('/rp/article/edit/{}/'.format(pk), a)
        a = Article.objects.get(pk=pk)
        assert r.status_code == 302  # We're redirecting to the view or preview of the article
        assert a.title == 'Zog Zog'
        assert set(a.tags.names()) == set(self.articles[0].tags.names()) | {"merged tag"}


class TestArticleApi(TestCase):
    def setUp(self):
        self.client = APIClient()
        self.articles = [ArticleFactory(tags=["Tag {}".format(n) for n in range(randint(1, 10))])
                         for i in range(0, 2 * ArticleList.paginate_by)]
        self.user = User.objects.create(username="test",
                                        email="test@example.org",
                                        password="test")
        self.jedi = User.objects.create(username="obiwan",
                                        email="o.kennoby@example.org",
                                        password="Thisaintthedroidyourelookin")

        for a in self.articles:
            a.save()

    def test_api_get(self):
        r = self.client.get('/api/articles/1/', {})
        assert r.status_code == 200
        assert r.data['id'] == 1

    def test_api_list(self):
        r = self.client.get('/api/articles/', {})
        assert r.status_code == 200
        assert r.data['count'] == 2 * ArticleList.paginate_by

    def test_api_edit(self):
        self.user.user_permissions.add(Permission.objects.get(
            codename='can_edit'))
        self.client.force_login(user=self.user)

        pk = self.articles[0].pk
        article = {'title': 'Zog Zog',
                   'url': 'https://article.org/Zog+Zog'}
        r = self.client.put('/api/articles/{}/'.format(pk),
                            article,
                            format='json')

        assert r.status_code == 200
        assert Article.objects.get(pk=pk).title == 'Zog Zog'

    def test_api_edit_tags(self):
        # Checking that we indeed change the tags
        self.user.user_permissions.add(Permission.objects.get(
            codename='can_edit'))
        self.client.force_login(user=self.user)

        pk = self.articles[0].pk
        article = {'title': 'Zog Zog',
                   'url': 'https://article.org/Zog+Zog',
                   'tags': '["New Tag 1", "New Tag 2"]'}
        r = self.client.put('/api/articles/{}/'.format(pk),
                            article,
                            format='json')
        assert r.status_code == 200
        a = Article.objects.get(pk=pk)
        assert list(a.tags.values('name',).order_by('name')) == [{'name': 'New Tag 1'},
                                                                 {'name': 'New Tag 2'}]

    def test_api_filter_tag(self):
        tag = 'Tag 1'
        tagged = Article.objects.filter(tags__name__in=[tag]).count()

        r = self.client.get('/api/articles-by-tag/{}/'.format(tag))
        assert r.status_code == 200
        assert r.data['count'] == tagged

        # Case sensitivity checking - tags are sensitive to case
        r = self.client.get('/api/articles-by-tag/{}/'.format(tag.upper()))
        assert r.status_code == 200
        assert r.data['count'] == 0

        # No article should have the ZogZog tag
        r = self.client.get('/api/articles-by-tag/zogzog/')
        assert r.status_code == 200
        assert r.data['count'] == 0

    def test_api_filter_search(self):
        text = self.articles[0].title
        r = self.client.get('/api/articles/', {'q': text})
        assert r.status_code == 200
        assert r.data['count'] == 1
        assert r.data['results'][0]['id'] == self.articles[0].id

    def test_api_filter_flag_search(self):
        r = self.client.get('/api/articles/', {'quote': 'both'})
        assert r.status_code == 200
        assert r.data['count'] == len(self.articles)

    def test_api_tag_push_unauth(self):
        a = ArticleFactory()
        r = self.client.post('/api/articles/',
                             {'url': a.url, 'title': a.title,
                              'tags': '["Tag 1", "Tag 2"]'},
                             format='json')
        assert r.status_code == 401

    def test_api_tag_push_auth(self):
        self.client.force_login(user=self.user)
        a = ArticleFactory(status='NEW')
        r = self.client.post('/api/articles/',
                             {'url': a.url, 'title': a.title,
                              'tags': a.tags.all()},
                             format='json')
        assert r.status_code == 201
        assert list(a.tags.all()) == r.data['tags']

        # Need to test if we keep the tags
        r = self.client.post('/api/articles/',
                             {'url': a.url, 'title': a.title},
                             format='json')
        assert list(a.tags.all()) == r.data['tags']

    def test_api_recover(self):
        # Can we recover if we're no Jedis
        self.client.force_login(user=self.user)
        a = ArticleFactory(status='NEW')
        r = self.client.post('/api/articles/{}/recover/'.format(a.id))
        assert r.status_code == 403

        # Can we recover a NEW article and force it to DRAFT?
        self.user.user_permissions.add(Permission.objects.get(
            codename='can_change_status'))
        self.client.force_login(user=self.user)
        a = ArticleFactory(status='NEW')
        r = self.client.post('/api/articles/{}/recover/'.format(a.id))
        assert r.status_code == 200
        assert r.data['status'] == 'DRAFT'

        # Can we recovr a REJECTED article and force it to DRAFT?
        a = ArticleFactory(status='REJECTED')
        r = self.client.post('/api/articles/{}/recover/'.format(a.id))
        assert r.status_code == 200
        assert r.data['status'] == 'DRAFT'

        # We cannot recover a published article
        a = ArticleFactory(status='PUBLISHED')
        r = self.client.post('/api/articles/{}/recover/'.format(a.id))
        assert r.status_code == 400

    def test_api_set_priority(self):
        self.user.user_permissions.add(Permission.objects.get(
            codename='can_change_priority'))
        self.client.force_login(user=self.user)
        a = ArticleFactory(status='DRAFT')
        assert a.priority is False
        r = self.client.post('/api/articles/{}/set-priority/'.format(a.id))
        assert r.status_code == 200
        assert r.data['priority']

    def test_api_unset_priority(self):
        self.user.user_permissions.add(Permission.objects.get(
            codename='can_change_priority'))
        self.client.force_login(user=self.user)
        a = ArticleFactory(status='DRAFT', priority=True)
        assert a.priority
        r = self.client.post('/api/articles/{}/unset-priority/'.format(a.id))
        assert r.status_code == 200
        assert r.data['priority'] is False

    def test_api_unpublish_unauth(self):
        a = ArticleFactory(status='PUBLISHED')
        r = self.client.post('/api/articles/{}/unpublish/'.format(a.id))
        assert r.status_code == 401

    def test_api_unpublish(self):
        self.jedi.user_permissions.add(Permission.objects.get(
            codename='can_change_status'))
        self.client.force_login(self.jedi)
        a = ArticleFactory(status='PUBLISHED')
        r = self.client.post('/api/articles/{}/unpublish/'.format(a.id))
        assert r.status_code == 200
        assert r.data['status'] == 'DRAFT'