"""
    Module containing the http loaders. This loaders are the responsible for
    parse the http request into a known data format (INNERS) and for make an http response from
    python data (OUTERS)
"""
import json
from django.http import HttpResponse


# INNERS
def json_in(request):
    """
        Http loader of type "in". Transform json request data into python object.
        Request's body must be in json format.

    Parameters
    ----------
    request: HttpRequest
        Http requested
    Returns
    -------
    success: object
        Python object
    """
    return json.loads(u'{}'.format(request.body.decode('utf8')))


def dict_in(request):
    """
        Http loader of type "in". Transform GET request url data into a python dictionary.
    Parameters
    ----------
    request: HttpRequest
        Http requested
    Returns
    -------
    success: object
        Python object
    """
    data = request.GET.dict()
    return data


def invisible_in(request):
    """
        Http loader of type "in". Transform GET request url data into a python dictionary.
    Parameters
    ----------
    request: HttpRequest
        Http requested
    Returns
    -------
    success: object
        Python object
    """
    return {"request": request}


# OUTERS
def json_out(data):
    """
        Transform serializable data into a Json Http response.
    Parameters
    ----------
    data: object
        Pytho object to return. Must be serializable

    Returns
    -------
    success: HttpResponse

    """
    json_result = json.dumps(data)
    return HttpResponse(json_result)


def plain_out(data):
    """
        Create an HTTP Response from string. Any operation on data is performed.
    Parameters
    ----------
    data: string
        Data to send
    Returns
    -------
    success: HttpResponse

    """
    return HttpResponse(data)


def invisible_out(data):
    """
        Send "as is" the data. Any operation is performed on data input.
    Parameters
    ----------
    data: HttpResponse

    Returns
    -------
    success: HttpResponse

    """
    return data