3 Commits

Author	SHA1	Message	Date
Vladimir Zagainov	15917401a9	feat: complete lazy graph expansion implementation with cache-aware search and transfer depth limiting ... - Task 1: Hub station selection and BuildGraphFromHubs - Task 2: Yandex /search on-demand edge expansion with caching - Task 3: FindRoute with lazy expansion and 4-5 transfer depth limit - Task 4: Cache-aware search results with TTL policies (near-term: 2-6h, far-term: 7d) - Task 5: End-to-end verification and documentation - Task 6: Final verification - all internal/routing unit tests pass (22/22) Co-Authored-By: Claude <noreply@anthropic.com>	2026-08-14 22:54:45 +03:00
Vladimir Zagainov	e063d26d4c	fix: code correctness, security, and simplicity improvements	2026-08-13 21:23:15 +03:00
Vladimir Zagainov	571d11d376	feat: implement cache-aside layer with Redis cache interface, cache keys, TTL policies, and tests ... - Created cache/store.go with Cache interface, redisClient wrapper, cacheStore, TTL constants (CityTTL 30d, SearchNearTermTTL 3h, SearchFarTermTTL 7d) - Implemented cache keys: cities:{code}, stations:{id}, search:{from}:{to}:{date} - Implemented cache-aside pattern via CacheAside struct with GetOrSetFuncPattern, GetCity, GetStation, GetSearch - Added TTL-aware search result caching with near-term (3h) and far-term (7d) policies - Wrote 6 unit tests: CacheGetSet, CacheKeyString, CacheAsideGetOrSet, CacheAsideGetCity, CacheAsideGetSearch, CacheInvalidate - All tests pass with Redis integration	2026-08-13 19:55:02 +03:00