Retrieve fare rules and parse penalty amounts using the Amadeus Fare Rules API

Steps

1. After obtaining a flight offer from Flight Offers Search, call POST /v1/shopping/flight-offers/pricing with the full offer and include=detailed-fare-rules as a query parameter to get fare-rule data alongside the confirmed price.
2. Parse each traveler's fareDetailsBySegment[].fareRules.rules[] array; each element is a TermAndCondition object whose category is exactly one of REFUND, EXCHANGE, REVALIDATION, REISSUE, REBOOK, or CANCELLATION — there is no PENALTIES category.
3. Read notApplicable (boolean) to see whether a given rule applies at all, and maxPenaltyAmount for the fee ceiling on that rule; the surrounding FareRules object also carries a currency field for that amount.
4. For free-text detail (exact conditions, deadlines relative to departure, exceptions), read descriptions[].text on the rule — the structured fields only give category, applicability, and a penalty ceiling.
5. Summarize the rules in plain language for the traveler: changeable (via EXCHANGE/REBOOK rules) and refundable (via REFUND/CANCELLATION rules), each with yes/no/fee-amount.
6. Cache parsed fare rules alongside the offer; they are tied to the specific fareDetailsBySegment/fare basis code and should not be reused across different offers.