from datetime import date, datetime, timedelta

from freezegun import freeze_time

from data.logs_model.inmemory_model import InMemoryModel
from data.logs_model.combined_model import CombinedLogsModel

from test.fixtures import *


@pytest.fixture()
def first_model():
  return InMemoryModel()


@pytest.fixture()
def second_model():
  return InMemoryModel()


@pytest.fixture()
def combined_model(first_model, second_model, initialized_db):
  return CombinedLogsModel(first_model, second_model)


def test_log_action(first_model, second_model, combined_model, initialized_db):
  day = date(2019, 1, 1)

  # Write to the combined model.
  with freeze_time(day):
    combined_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                              ip='1.2.3.4')

  simple_repo = model.repository.get_repository('devtable', 'simple')

  # Make sure it is found in the first model but not the second.
  assert combined_model.count_repository_actions(simple_repo, day) == 1
  assert first_model.count_repository_actions(simple_repo, day) == 1
  assert second_model.count_repository_actions(simple_repo, day) == 0


def test_count_repository_actions(first_model, second_model, combined_model, initialized_db):
  # Write to each model.
  first_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                         ip='1.2.3.4')
  first_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                         ip='1.2.3.4')
  first_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                         ip='1.2.3.4')

  second_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                          ip='1.2.3.4')
  second_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                          ip='1.2.3.4')

  # Ensure the counts match as expected.
  day = datetime.today() - timedelta(minutes=60)
  simple_repo = model.repository.get_repository('devtable', 'simple')

  assert first_model.count_repository_actions(simple_repo, day) == 3
  assert second_model.count_repository_actions(simple_repo, day) == 2
  assert combined_model.count_repository_actions(simple_repo, day) == 5


def test_yield_logs_for_export(first_model, second_model, combined_model, initialized_db):
  now = datetime.now()

  # Write to each model.
  first_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                         ip='1.2.3.4')
  first_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                         ip='1.2.3.4')
  first_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                         ip='1.2.3.4')

  second_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                          ip='1.2.3.4')
  second_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                          ip='1.2.3.4')

  later = datetime.now()

  # Ensure the full set of logs is yielded.
  first_logs = list(first_model.yield_logs_for_export(now, later))[0]
  second_logs = list(second_model.yield_logs_for_export(now, later))[0]

  combined = list(combined_model.yield_logs_for_export(now, later))
  full_combined = []
  for subset in combined:
    full_combined.extend(subset)

  assert len(full_combined) == len(first_logs) + len(second_logs)
  assert full_combined == (first_logs + second_logs)


def test_lookup_logs(first_model, second_model, combined_model, initialized_db):
  now = datetime.now()

  # Write to each model.
  first_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                         ip='1.2.3.4')
  first_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                         ip='1.2.3.4')
  first_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                         ip='1.2.3.4')

  second_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                          ip='1.2.3.4')
  second_model.log_action('push_repo', namespace_name='devtable', repository_name='simple',
                          ip='1.2.3.4')

  later = datetime.now()

  def _collect_logs(model):
    page_token = None
    all_logs = []
    while True:
      paginated_logs = model.lookup_logs(now, later, page_token=page_token)
      page_token = paginated_logs.next_page_token
      all_logs.extend(paginated_logs.logs)
      if page_token is None:
        break
    return all_logs

  first_logs = _collect_logs(first_model)
  second_logs = _collect_logs(second_model)
  combined = _collect_logs(combined_model)

  assert len(combined) == len(first_logs) + len(second_logs)
  assert combined == (first_logs + second_logs)