The two wire fields differ for seasonal packs (verified against
traffic_prod_all_gacha_exchange.ndjson — every captured request pairs
odds_gacha_id=16xxx with parent_gacha_id=10xxx). The OLD DTO docstring
assumed they were always equal; today's controller used
ParentGachaId, which lands on the base/family pack id (often a
synthesized disabled stub with no GachaPointConfig) and returns [].
Fix:
- GetGachaPointRewards and ExchangeGachaPoint now consume OddsGachaId.
- Update both DTO docstrings to document the seasonal-pack pattern.
- Regression test seeds (16015 enabled w/ GachaPointConfig, 10015
disabled stub w/o config) and asserts the response uses 16015's
catalog.
Symptom: opening pack 16015 (parent_gacha_id=16015 in /pack/open)
accrued gacha points correctly, but /pack/get_gacha_point_rewards with
{odds_gacha_id:16015, parent_gacha_id:10015} returned an empty list.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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