Trey T
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New top-level TabView (RootView) splits the app into: Tab 1 (Search): existing RoutePlannerView home Tab 2 (Live): live flight tracker Live tab features: - MapKit map showing every aircraft in the visible viewport, rotated to true heading. Color-coded by vertical state: climbing/level/ descending/on-ground. - Auto-refresh every 15s + on map pan/zoom (debounced); manual refresh button. Rate-limit aware (60s backoff on HTTP 429). - Tap any aircraft → modal sheet with live state grid (altitude, speed, heading, vertical rate, squawk, last-contact), current route (lazily fetched per-aircraft from OpenSky's /flights/ aircraft endpoint, mapped from ICAO to IATA airport codes), and recent flight history (up to 8 prior legs). - Filters: airline (multi-select from currently visible callsigns, with counts), aircraft type (ADS-B emitter category), airborne- only toggle. All filters render as horizontal chips and clear with a single tap. - Search bar: callsign/flight number — submitting centers the map on the match and opens its detail sheet. Data source: OpenSky Network REST API. Free, anonymous (~100 req/ day cap), JSON. Same ADS-B data FR24 starts with — without satellite ADS-B coverage but more than enough for the in-flight tracker use case. Reviewed FR24's APK and confirmed they migrated their live feed to gRPC+protobuf with anti-bot device-id headers; OpenSky's plain JSON is the right tradeoff for our build. Implementation: - LiveAircraft model: decodes OpenSky's mixed-type position arrays into a typed struct; computed properties for ft/knots/heading and airline ICAO extracted from callsign. - OpenSkyClient: actor with /states/all + /flights/aircraft. Bbox query, throttle-aware errors. - AircraftRegistry: ~80 ICAO → (IATA, name) entries for the major carriers; everything else falls through to the raw ICAO code. - LiveFlightsView: the main map + filter UI. - LiveFlightDetailSheet: tap modal with live state + route history. - RootView: TabView wrapping RoutePlannerView (Search) and the new LiveFlightsView (Live). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>