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import six


class TaskController:

    '''WSGI app providing web-like RPC

    The purpose of this app is to allow us to replicate the
    normal web request environment as closely as possible
    when executing taskd tasks.
    '''

    def __call__(self, environ, context):
        # see TGController / CoreDispatcher for reference on how this works on a normal controllers

        task = environ['task']
        nocapture = environ['nocapture']
        result = task(restore_context=False, nocapture=nocapture)
        py_response = context.response
        py_response.headers['Content-Type'] = 'text/plain'  # `None` default is problematic for some middleware
        py_response.body = six.ensure_binary(result or b'')
        return py_response