from datetime import timedelta

from django.core.management import call_command
from django.test import TestCase
from django.utils import timezone
from django.utils.six import StringIO
from django.utils.six.moves import range

from misago.threads import testutils

from misago.categories.management.commands import prunecategories
from misago.categories.models import Category


class PruneCategoriesTests(TestCase):
    def test_category_prune_by_start_date(self):
        """command prunes category content based on start date"""
        category = Category.objects.all_categories()[:1][0]

        category.prune_started_after = 20
        category.save()

        # post old threads with recent replies
        started_on = timezone.now() - timedelta(days=30)
        posted_on = timezone.now()
        for t in range(10):
            thread = testutils.post_thread(category, started_on=started_on)
            testutils.reply_thread(thread, posted_on=posted_on)

        # post recent threads that will be preserved
        threads = [testutils.post_thread(category) for t in range(10)]

        category.synchronize()
        self.assertEqual(category.threads, 20)
        self.assertEqual(category.posts, 30)

        # run command
        command = prunecategories.Command()

        out = StringIO()
        call_command(command, stdout=out)

        category.synchronize()
        self.assertEqual(category.threads, 10)
        self.assertEqual(category.posts, 10)

        for thread in threads:
            category.thread_set.get(id=thread.id)

        command_output = out.getvalue().strip()
        self.assertEqual(command_output, 'Categories were pruned')

    def test_category_prune_by_last_reply(self):
        """command prunes category content based on last reply date"""
        category = Category.objects.all_categories()[:1][0]

        category.prune_replied_after = 20
        category.save()

        # post old threads with recent replies
        started_on = timezone.now() - timedelta(days=30)
        for t in range(10):
            thread = testutils.post_thread(category, started_on=started_on)
            testutils.reply_thread(thread)

        # post recent threads that will be preserved
        threads = [testutils.post_thread(category) for t in range(10)]

        category.synchronize()
        self.assertEqual(category.threads, 20)
        self.assertEqual(category.posts, 30)

        # run command
        command = prunecategories.Command()

        out = StringIO()
        call_command(command, stdout=out)

        category.synchronize()
        self.assertEqual(category.threads, 10)
        self.assertEqual(category.posts, 10)

        for thread in threads:
            category.thread_set.get(id=thread.id)

        command_output = out.getvalue().strip()
        self.assertEqual(command_output, 'Categories were pruned')

    def test_category_archive_by_start_date(self):
        """command archives category content based on start date"""
        category = Category.objects.all_categories()[:1][0]
        archive = Category.objects.create(
            lft=7,
            rght=8,
            tree_id=2,
            level=0,
            name='Archive',
            slug='archive',
        )

        category.prune_started_after = 20
        category.archive_pruned_in = archive
        category.save()

        # post old threads with recent replies
        started_on = timezone.now() - timedelta(days=30)
        posted_on = timezone.now()
        for t in range(10):
            thread = testutils.post_thread(category, started_on=started_on)
            testutils.reply_thread(thread, posted_on=posted_on)

        # post recent threads that will be preserved
        threads = [testutils.post_thread(category) for t in range(10)]

        category.synchronize()
        self.assertEqual(category.threads, 20)
        self.assertEqual(category.posts, 30)

        # run command
        command = prunecategories.Command()

        out = StringIO()
        call_command(command, stdout=out)

        category.synchronize()
        self.assertEqual(category.threads, 10)
        self.assertEqual(category.posts, 10)

        archive.synchronize()
        self.assertEqual(archive.threads, 10)
        self.assertEqual(archive.posts, 20)

        for thread in threads:
            category.thread_set.get(id=thread.id)

        command_output = out.getvalue().strip()
        self.assertEqual(command_output, 'Categories were pruned')

    def test_category_archive_by_last_reply(self):
        """command archives category content based on last reply date"""
        category = Category.objects.all_categories()[:1][0]
        archive = Category.objects.create(
            lft=7,
            rght=8,
            tree_id=2,
            level=0,
            name='Archive',
            slug='archive',
        )

        category.prune_replied_after = 20
        category.archive_pruned_in = archive
        category.save()

        # post old threads with recent replies
        started_on = timezone.now() - timedelta(days=30)
        for t in range(10):
            thread = testutils.post_thread(category, started_on=started_on)
            testutils.reply_thread(thread)

        # post recent threads that will be preserved
        threads = [testutils.post_thread(category) for t in range(10)]

        category.synchronize()
        self.assertEqual(category.threads, 20)
        self.assertEqual(category.posts, 30)

        # run command
        command = prunecategories.Command()

        out = StringIO()
        call_command(command, stdout=out)

        category.synchronize()
        self.assertEqual(category.threads, 10)
        self.assertEqual(category.posts, 10)

        archive.synchronize()
        self.assertEqual(archive.threads, 10)
        self.assertEqual(archive.posts, 20)

        for thread in threads:
            category.thread_set.get(id=thread.id)

        command_output = out.getvalue().strip()
        self.assertEqual(command_output, 'Categories were pruned')