import json
import os

from datetime import datetime, timedelta

import boto

from httmock import urlmatch, HTTMock
from moto import mock_s3_deprecated as mock_s3

from app import storage as test_storage
from data import model, database
from data.logs_model import logs_model
from storage import S3Storage, StorageContext, DistributedStorage
from workers.exportactionlogsworker import ExportActionLogsWorker, POLL_PERIOD_SECONDS

from test.fixtures import *


_TEST_CONTENT = os.urandom(1024)
_TEST_BUCKET = 'some_bucket'
_TEST_USER = 'someuser'
_TEST_PASSWORD = 'somepassword'
_TEST_PATH = 'some/cool/path'
_TEST_CONTEXT = StorageContext('nyc', None, None, None)


@pytest.fixture(params=['test', 'mock_s3'])
def storage_engine(request):
  if request.param == 'test':
    yield test_storage
  else:
    with mock_s3():
      # Create a test bucket and put some test content.
      boto.connect_s3().create_bucket(_TEST_BUCKET)
      engine = DistributedStorage(
        {'foo': S3Storage(_TEST_CONTEXT, 'some/path', _TEST_BUCKET, _TEST_USER, _TEST_PASSWORD)},
        ['foo'])
      yield engine


def test_export_logs_failure(initialized_db):
  # Make all uploads fail.
  test_storage.put_content('local_us', 'except_upload', 'true')

  repo = model.repository.get_repository('devtable', 'simple')
  user = model.user.get_user('devtable')

  worker = ExportActionLogsWorker(None)
  called = [{}]

  @urlmatch(netloc=r'testcallback')
  def handle_request(url, request):
    called[0] = json.loads(request.body)
    return {'status_code': 200, 'content': '{}'}

  def format_date(datetime):
    return datetime.strftime("%m/%d/%Y")

  now = datetime.now()
  with HTTMock(handle_request):
    with pytest.raises(IOError):
      worker._process_queue_item({
        'export_id': 'someid',
        'repository_id': repo.id,
        'namespace_id': repo.namespace_user.id,
        'namespace_name': 'devtable',
        'repository_name': 'simple',
        'start_time': format_date(now + timedelta(days=-10)),
        'end_time': format_date(now + timedelta(days=10)),
        'callback_url': 'http://testcallback/',
        'callback_email': None,
      }, test_storage)

  test_storage.remove('local_us', 'except_upload')

  assert called[0]
  assert called[0][u'export_id'] == 'someid'
  assert called[0][u'status'] == 'failed'


@pytest.mark.parametrize('has_logs', [
  True,
  False,
])
def test_export_logs(initialized_db, storage_engine, has_logs):
  # Delete all existing logs.
  database.LogEntry3.delete().execute()

  repo = model.repository.get_repository('devtable', 'simple')
  user = model.user.get_user('devtable')

  now = datetime.now()
  if has_logs:
    # Add new logs over a multi-day period.
    for index in range(-10, 10):
      logs_model.log_action('push_repo', 'devtable', user, '0.0.0.0', {'index': index},
                            repo, timestamp=now + timedelta(days=index))

  worker = ExportActionLogsWorker(None)
  called = [{}]

  @urlmatch(netloc=r'testcallback')
  def handle_request(url, request):
    called[0] = json.loads(request.body)
    return {'status_code': 200, 'content': '{}'}

  def format_date(datetime):
    return datetime.strftime("%m/%d/%Y")

  with HTTMock(handle_request):
    worker._process_queue_item({
      'export_id': 'someid',
      'repository_id': repo.id,
      'namespace_id': repo.namespace_user.id,
      'namespace_name': 'devtable',
      'repository_name': 'simple',
      'start_time': format_date(now + timedelta(days=-10)),
      'end_time': format_date(now + timedelta(days=10)),
      'callback_url': 'http://testcallback/',
      'callback_email': None,
    }, storage_engine)

  assert called[0]
  assert called[0][u'export_id'] == 'someid'
  assert called[0][u'status'] == 'success'

  url = called[0][u'exported_data_url']

  if url.find('http://localhost:5000/exportedlogs/') == 0:
    storage_id = url[len('http://localhost:5000/exportedlogs/'):]
  else:
    assert url.find('https://some_bucket.s3.amazonaws.com/some/path/exportedactionlogs/') == 0
    storage_id, _ = url[len('https://some_bucket.s3.amazonaws.com/some/path/exportedactionlogs/'):].split('?')

  created = storage_engine.get_content(storage_engine.preferred_locations,
                                       'exportedactionlogs/' + storage_id)
  created_json = json.loads(created)

  if has_logs:
    found = set()
    for log in created_json['logs']:
      if log.get('terminator'):
        continue

      found.add(log['metadata']['index'])

    for index in range(-10, 10):
      assert index in found
  else:
    assert created_json['logs'] == [{'terminator': True}]