Calculation audit (brief config: 30 MPG imperial, £60 fill-up, baseline
Rontec Shelf 171.9p at 0.4 mi):
- One mile<->kilometre constant pair (kilometresPerMile 1.609344,
metresPerMile 1609.344) replaces the mixed 1609.34 / 0.621371 / 1.60934
used in the savings path. Effect ~2 ppm (invisible), but the conversions
are now auditable in one place.
- New FuelSavingsCalculationAuditTests (20 deterministic tests, no live
MKDirections) pins the brief's three stations - Tesco 170.9p/2.0 mi,
MFG Hare & Hounds 172.9p/2.8 mi, PGG Napoleon 171.9p/2.8 mi - plus
imperial-vs-US gallon, MPG and budget scaling, the break-even tolerance
boundary, the nearer-candidate clamp, route-unavailable, mixed-basis
estimates and display-rounding boundaries.
- Formula unchanged, and verified correct: fixed quantity (budget / baseline
price), pump saving, round-trip extra distance clamped at zero, travel fuel
priced at the candidate station, +/-5p break even, baseline labelled
"Closest station", sorting on the unrounded net saving. The brief's "£0.18"
for Tesco is the rounded 1 dp extra-distance caption (2.02-2.05 mi reads as
"2.0 mi"), not a rounding bug in the money.
UI (uncommitted since d7a0ecb):
- Done bar drawn in the bottom safe area from keyboard notifications:
.toolbar(placement: .keyboard) is device-dependent (present on the 15 Pro,
absent on the SE on the same iOS build).
- Favourite star in the More-info heading, wired to the same fuel-scoped
toggle as the listing rows at all three call sites.
- CHEAPEST/TOP badge moved above the price so it reads as part of it.
- Listing rows carry the real session fill-up amount instead of a hard zero
(the compact banner does not print it today; a future row layout would).
153 tests, 0 failures. Simulator and device builds succeed.
Optional Fuel Savings feature (off by default): vehicle MPG in UK imperial gallons, fill amount in pounds or litres, persisted through the existing keychain/app-group store. Ranks the WHOLE station pool by estimated net saving (fuel-price saving at each pump minus the extra return-trip driving cost) using MapKit road distances with a straight-line fallback marked (est.).
The closest station with a valid price for the selected fuel is the comparison baseline and is labelled "Closest station"; other rows read "Save £X.XX after travel" / "£X.XX worse off after travel" / "Break even". Labels live in the shared model so they are unit-tested. The TOP badge still marks the cheapest pump price and reads "CHEAPEST" when the list is ranked by net saving.
Road routing now prioritises the Worth-the-Drive candidates plus the baseline and merges cache entries instead of replacing them, so far-out stations get real routes rather than permanent straight-line estimates. Numeric fields gain a Done button above the keypad (decimalPad has no Return key); the fill-up control is hidden unless the feature is configured; Favourites shares one session fill amount with the station list. 131 tests.
Expanded leading/trailing, compact and minimal island views had
no Link, so tapping them just opened the app with no destination.
Every island region now links to the same tap destination as the
Lock Screen card (Maps vs in-app detail).
Tap hint captions follow the setting too: Tap for details vs
Tap for directions.
Small widgetURL and medium list Links route through
StationTapAction via FuelStation.tapDestinationURL: Open map
keeps the Maps URL, More info uses a fuelboard://station
deep link (stationID plus coordinate/name fallback).
Deep link carries fallback coords; ContentView presents the
detail sheet when the station is cached, else the map sheet.
Live Activity detailURL upgraded to the same rich link.
Notification body/action taps route through StationTapAction:
Open map opens Apple Maps (existing); More info presents the
in-app detail sheet (falls back to the map sheet when the
station is not in cache).
Live Activity Lock Screen card and island station row pick
their Link destination the same way: Maps URL for Open map,
fuelboard://station deep link for More info, handled in
FuelBoardApp and observed by ContentView.
Also adds the small non-interactive map preview above the
Directions button in the More info sheet.
Moves the Tap station picker out of Units into a dedicated Tap
action section, with the tap descriptor text as its footer. Units
footer reverts to distances/prices only.
Settings → Units gains a Tap station picker: Open map (default,
historic behaviour — tap opens Apple Maps directions) or More info
(tap shows a detail sheet with name, address, distance from current
location, and a Directions button). Applies to Stations and
Favourites tabs; persisted keychain-first as
fuelboard.stationTapAction. Stations footer hint follows the setting.
Siri was hit-and-miss on 'unleaded near me' (\u2018can't do that, searching
in app\u2019 fallback). The generic parameterized AppShortcut ('cheapest
${fuel}') competed with the fixed-fuel literal-word shortcuts for the same
intent, degrading NLU ranking; it was already documented as flaky. Remove it
(now 9 shortcuts, under the 10 cap) and add natural phrase variants for
unleaded/petrol ('What's the cheapest unleaded near me', 'Cheapest unleaded
near me', 'Where's the cheapest petrol'). All phrases keep .applicationName
per the iOS 26 metadata requirement. Build-verified in extract.actionsdata:
generic gone, new phrases registered.
Callers previously morphed the existing lines on a reload, so picking a new
range only glided in place. Now every range/fuel selection (the only reloads;
the sheet has no periodic refetch) replays the staggered per-series draw-in
via revealSeries(), so the lines visibly redraw left->right when the user
switches 7/30/90. Price<->vs-cheapest still morphs (pure view toggle, no
reload). Reduce Motion jump-cuts.
The single-waterline trace-in was invisible with sparse data (2 points draw
in one step). Replace it with a per-series waterline: each station's line now
traces left->right on first appearance, series revealed 0.18s apart in a
cascade so the draw is clearly visible. Newly-added favourites get a full
reveal immediately on reload; Reduce Motion still jump-cuts. Range/mode
morphs and numeric headline transition unchanged.
- Reloads (range/fuel switch, Price<->vs-cheapest) now glide the existing
lines + y-axis to the new data via withAnimation/.animation(value: mode)
instead of snapping.
- One-time left->right trace-in on first data appearance by revealing an
increasing prefix of each series' points (area + line stay in sync); later
switches morph rather than re-trace.
- Headline average rolls its digits with .contentTransition(.numericText).
- All animation honours .accessibilityReduceMotion (jump-cut to final state).
Kept two-pass area/line ordering, explicit series:, bounded fill bands, and
tight chartYScale unchanged.
The road-distance cache was keyed purely by station ID with no coordinate, so
a value routed to one pin could be served for a same-ID station whose stored
coordinate came from a different source (live fetch vs bundled offline dump
vs a corrected pin), reproducing Maps mismatches.
- RoadDistanceCache now stores each routed pin (CachedRoadDistance{meters,
lat, lng}) and roadDistanceMeters() only serves a value when the displayed
station's coordinate matches the pinned one (within ~11 m).
- Kept the existing origin-distance staleness guard.
- Verified embedded sample data (ids y1/se1/...) never collides with real
relay IDs, and the widget STRICT radius filter drops far-offline samples, so
no actual leak existed in practice — this closes the theoretical stale-pin
channel and future-proofs against coordinate fixes.
The keychain-first completed flag persists across reinstalls (same bundle id),
so a new install was treated as already-completed and onboarding silently
skipped while permissions still prompted. Add install identity:
- Store an install id in BOTH the app-own container defaults (wiped on
reinstall, persists across launches) and keychain (survives reinstall).
- isFreshInstall() is true on first-ever launch or when the local id is
missing/different from keychain (i.e. reinstalled); it seeds a fresh common
id so the next launch of the same install is not 'fresh' again.
- shouldShowOnboarding() = not completed || fresh install -> onboarding now
replays once per fresh/reinstall, never on ordinary launches.
Works on free SideStore (no app-group), using the app's own defaults domain
as the same-install signal.
