Process JSON and Filter Results

MediumPython

Problem

Asurion Home+ receives a nested device catalog payload. Transform it into a flat list of eligible offers for a customer.

Implement filter_home_plus_offers(payload, category, max_price, min_rating). Include an offer only when its device has status equal to "active", its category matches the requested category, its available field is true, its price is at most max_price, and its rating is at least min_rating. If the same offerId appears more than once, keep only the occurrence with the lowest price. Return the results sorted by ascending price, then ascending offerId.

Formal Specification

payload is a dictionary with a devices list.
Each device contains string fields deviceId, brand, category, and status, plus an offers list.
Each offer contains string fields offerId and title, numeric fields price and rating, and a boolean field available.
Return a list of dictionaries containing exactly deviceId, brand, offerId, title, and price.

Constraints

The payload contains at most 10^4 devices and 10^5 offers.
Prices are nonnegative numbers.
Ratings are between 0 and 5.
Each offer has all required fields.
Offer IDs are nonempty strings.

Function Signature

def filter_home_plus_offers(payload, category, max_price, min_rating):

Asurion Home+ receives a nested device catalog payload. Transform it into a flat list of eligible offers for a customer.

Formal Specification

payload is a dictionary with a devices list.
Each device contains string fields deviceId, brand, category, and status, plus an offers list.
Each offer contains string fields offerId and title, numeric fields price and rating, and a boolean field available.
Return a list of dictionaries containing exactly deviceId, brand, offerId, title, and price.