"""Integration tests for configurable job handler assignment methods."""

import os

from galaxy_test.driver import integration_util

SCRIPT_DIRECTORY = os.path.abspath(os.path.dirname(__file__))
HANDLER_TEMPLATE_JOB_CONFIG_FILE = os.path.join(SCRIPT_DIRECTORY, "handler_template_job_conf.xml")


class WritesConfig:

    def _with_handlers_config(self, assign_with=None, default=None, handlers=None):
        handlers = handlers or []
        template = {
            'assign_with': ' assign_with="%s"' % assign_with if assign_with is not None else '',
            'default': ' default="%s"' % default if default is not None else '',
            'handlers': '\n'.join(
                '<handler id="{id}"{tags}/>'.format(
                    id=x['id'],
                    tags=' tags="%s"' % x['tags'] if 'tags' in x else ''
                ) for x in handlers),
        }
        self.__write_config_from(HANDLER_TEMPLATE_JOB_CONFIG_FILE, template=template)

    def __write_config_from(self, path, template=None):
        template = template or {}
        self.__write_config(open(path).read().format(**template))

    def __write_config(self, contents):
        with open(self._app.config.job_config_file, "w") as f:
            f.write(contents)


class BaseHandlerAssignmentMethodIntegrationTestCase(integration_util.IntegrationTestCase, WritesConfig):

    framework_tool_and_types = True

    @classmethod
    def handle_galaxy_config_kwds(cls, config):
        cls.jobs_directory = cls._test_driver.mkdtemp()
        config["jobs_directory"] = cls.jobs_directory
        config["job_config_file"] = os.path.join(cls.jobs_directory, "job_conf.xml")
        # Disable tool dependency resolution.
        config["tool_dependency_dir"] = "none"


class DBPreassignHandlerAssignmentMethodIntegrationTestCase(BaseHandlerAssignmentMethodIntegrationTestCase):

    def setUp(self):
        self._with_handlers_config(assign_with='db-preassign', handlers=[{'id': 'main'}])
        super().setUp()

    def test_handler_assignment(self):
        tool_id = 'config_vars'
        self._run_tool_test(tool_id)


class DBTransactionIsolationHandlerAssignmentMethodIntegrationTestCase(BaseHandlerAssignmentMethodIntegrationTestCase):

    def setUp(self):
        self._with_handlers_config(assign_with='db-transaction-isolation', handlers=[{'id': 'main'}])
        super().setUp()

    def test_handler_assignment(self):
        self._skip_unless_postgres()
        tool_id = 'config_vars'
        self._run_tool_test(tool_id)


class DBSkipLockedHandlerAssignmentMethodIntegrationTestCase(BaseHandlerAssignmentMethodIntegrationTestCase):

    def setUp(self):
        self._with_handlers_config(assign_with='db-skip-locked', handlers=[{'id': 'main'}])
        super().setUp()

    def test_handler_assignment(self):
        self._skip_unless_postgres()
        tool_id = 'config_vars'
        self._run_tool_test(tool_id)
