adapters.py

import arrow, ujson

class HoursFilter:
    def __init__(self, listings, hours_ago=None):
        self.listings = listings
        self.hours_ago = -1 if not hours_ago else hours_ago * -1

    @property
    def results(self):
        threshold = arrow.utcnow().shift(hours=self.hours_ago)

        filtered_listings = list(
            filter(lambda l: l.last_update >= threshold, self.listings)
        )

        return filtered_listings


class ResponseEnvelope:
    def __init__(self, api_response):
        self.json_obj = ujson.loads(api_response.content)

    @property
    def listings(self):
        return [Listing(l) for l in self.json_obj["value"]]

    @property
    def next_page_url(self):
        return self.json_obj.get("@odata.nextLink", None)


class Listing:
    def __init__(self, primative_listing_object):
        self.listing_obj = primative_listing_object

    @property
    def listing_key(self):
        return self.listing_obj["ListingKey"]

    @property
    def last_update(self):
        # todo, confirm this
        return arrow.get(self.listing_obj["ModificationTimestamp"])

    @property
    def media(self):
        incoming = self.listing_obj["Media"]

        return list(filter(lambda m: m["MediaCategory"] == "Photo", incoming))