"""

The Image Delivery API is used to retrieve, manipulate and/or convert image

files of your Contentstack account and deliver it to your web or mobile properties.

It is an second parameter in which we want to place different manipulation key and

value in array form ImageTransform method is define for image manipulation with

different transform_params in second parameter in array form

"""

import logging

class ImageTransform: # pylint: disable=too-few-public-methods

"""

The Image Delivery API is used to retrieve, manipulate and/or convert image

files

"""

def __init__(self, http_instance, image_url, logger=None, **kwargs):

"""

creates instance of the ImageTransform class

:param httpInstance: instance of HttpsConnection

:param image_url: url on which manipulation required, Image transformation url

:param kwargs: parameter in which we want to place different

manipulation key-worded, variable-length argument list

------------------------------

Example::

>>> import contentstack

>>> stack = contentstack.Stack('api_key', 'delivery_token', 'environment')

>>> stack.image_transform('image_url', width=100, height=100)

------------------------------

"""

super().__init__()

self.http_instance = http_instance

self.image_url = image_url

self.image_params = kwargs

self.logger = logger or logging.getLogger(__name__)

def get_url(self):

"""

Returns a complete url after concatenate with parameters

:return: updated asset url

------------------------------

Example::

>>> import contentstack

>>> stack = contentstack.Stack('api_key', 'delivery_token', 'environment')

>>> image_url = stack.image_transform('image_url', width=100, height=100)

>>> result = image_url.fetch()

------------------------------

"""

args = ['{0}={1}'.format(k, v)

for k, v in list(self.image_params.items())]

if args:

self.image_url += '?{0}'.format('&'.join(args))

return self.image_url