Final C-gap sub-feature: calendarRange pure helpers
(getMinDate/getMaxDate/buildDisabledDates/findNextEnabledDate), snap-to-
nearest-enabled effect in FlightsMapFilter, and useGeolocationDefault
hook that pre-fills departure from browser position on mount when no
dep/arr is already set.
Covers the final four Angular-parity gaps: filterRoutes pure helper,
buildBuyTicketUrl + escapeHtml, routesToPolylines/intermediateCityIds
airport→city normalization, and FlightsMapStartPage wiring for the
auto-fallback effect plus departure/arrival buy-ticket popups.
Six TDD tasks covering the routes-to-polylines pure helper, IMapPolyline
reshape to cityIds, MapCanvas polyline sync with visibility filtering,
intermediate-tooltip force-open pass, page wiring, and integration tests.
Tasks 1-3 share a commit due to coupling between type and consumer.
Covers the polyline layer: routesToPolylines pure function, city-code-
based IMapPolyline shape, MapCanvas polyline sync via markerIndexRef
with visibility filtering, intermediate-city tooltip force-open pass.
Captures the data-layer scope for the flights-map rebuild: useDictionaries
hook, parallel fetch of world_regions/countries/cities/airports, transform
rules matching Angular DictionariesService, and the testing contract.
Defines a Playwright-based pipeline for visual screenshot diffing,
behavioral E2E verification, and gap analysis between the Angular
and React implementations. Documents known gaps in flight details,
popular requests logic, and flights map.
Registers schedule URL serializer in parity harness with 18-entry fixture
corpus and fast-check fuzz. 10 URL round-trip integration tests, 6 SEO/
JSON-LD integration tests. Updates barrel and MF expose from stub to real.
Four Modern.js routes: start page, one-way search, round-trip search,
and catch-all multi-flight details. Components wire hooks for data
fetching and render flight results with calendar navigation.
POST schedule/1 for search, GET schedule/details with indexed query
params, GET days/.../schedule/v1 for calendar. Three hooks wrap the
API functions with loading/error state management.
SEO builder pure functions for all 6 Online Board route types,
each returning SeoHeadProps with title, description, canonical,
hreflang, OG, and Twitter card. Populated empty EN locale SEO
keys with English translations matching the Russian pattern.
Pure API functions (searchFlights, getFlightDetails, getCalendarDays)
with dependency-injected ApiClient, plus three thin React hooks
(useOnlineBoard, useFlightDetails, useCalendarDays) for search,
details, and calendar pages. 17 TDD tests for API layer covering
URL construction, response mapping, and error handling.
TDD plan for porting Angular OnlineBoardUrlBuilder/Parser to pure
TypeScript functions covering all 6 URL types (start, flight, departure,
arrival, route, details) with roundtrip and edge case tests.
gnezim