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.
routesToPolylines + intermediateCityIds now normalize airport codes to city
codes via the dictionaries so API responses resolve correctly. The page adds
effectiveConnections state + two effects for Angular-parity fallback
(retry connections=1 on empty direct-route result, then flip the UI toggle),
a filterRoutes memo feeding polylines and intermediateIds, and a popups memo
rendering departure + arrival buy-ticket popups in route mode only.
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.
- routesToPolylines + intermediateCityIds pure helpers with unit coverage.
- IMapPolyline reshaped from points to cityIds for Angular-parity drawing.
- MapCanvas resolves coords via markerIndex, filters invisible cities on
every zoom/toggle change, and runs a second tooltip pass that keeps
intermediate-city tooltips open regardless of zoom/highlight rules.
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.
Multi-leg flights now render a full-route timeline header and interleave
a transfer-bar between consecutive legs, surfacing station change and
intermediate-landing duration inline with the leg details.
gnezim