import os.path

from tornado.testing import AsyncHTTPTestCase
from tornado.ioloop import IOLoop

from thumbor.app import ThumborServiceApp
from thumbor.importer import Importer
from thumbor.config import Config
from thumbor.context import Context, ServerParameters
from thumbor.integration_tests.urls_helpers import single_dataset  # , combined_dataset
from thumbor.utils import which


class EngineTestCase(AsyncHTTPTestCase):

    def get_app(self):
        cfg = Config(SECURITY_KEY='ACME-SEC')
        server_params = ServerParameters(None, None, None, None, None, None)
        server_params.gifsicle_path = which('gifsicle')

        cfg.DETECTORS = [
            'thumbor.detectors.face_detector',
            'thumbor.detectors.profile_detector',
            'thumbor.detectors.glasses_detector',
            'thumbor.detectors.feature_detector',
        ]
        cfg.STORAGE = 'thumbor.storages.no_storage'
        cfg.LOADER = 'thumbor.loaders.file_loader'
        cfg.FILE_LOADER_ROOT_PATH = os.path.join(os.path.dirname(__file__), 'imgs')
        cfg.ENGINE = getattr(self, 'engine', None)
        cfg.USE_GIFSICLE_ENGINE = True
        cfg.OPTIMIZERS = [
            'thumbor.optimizers.gifv',
        ]
        if not cfg.ENGINE:
            return None

        importer = Importer(cfg)
        importer.import_modules()
        ctx = Context(server_params, cfg, importer)
        application = ThumborServiceApp(ctx)

        return application

    def get_new_ioloop(self):
        return IOLoop.instance()

    def retrieve(self, url):
        self.http_client.fetch(self.get_url(url), self.stop)
        return self.wait(timeout=30)

    def test_single_params(self):
        if not self._app:
            return True
        single_dataset(self.retrieve)

    # def test_combined_params__with_pil(self):
    #     if not self._app:
    #         return True
    #     combined_dataset(self.retrieve)
