New page 5 of 6, sitting between "Prices, ready when you are" and "You're all
set":
- Explains the feature: the cheapest pump isn't always the cheapest fill-up.
- Asks whether to switch it on, with a toggle.
- Switched ON, it asks for the two figures the ranking needs — average fuel
economy and typical fill-up — using exactly the Settings slider pattern
(read-out above a slider, £/Litres picker, no text entry anywhere).
- Switched OFF, it says where to switch Best Value on later ("Settings, under
Fuel Savings") instead of showing controls the user has just declined, and
the button reads "Not now" rather than "Continue" so declining reads as a
decision.
Chosen figures are written to the store as the controls move — the same
immediate-persist rule as Settings — so swiping past the page cannot lose a
choice. ContentView now reloads the stored savings settings when onboarding
dismisses: onboarding is a full-screen cover writing straight to the store
rather than through ContentView's binding, so without the reload the choice
would not take effect until the next launch.
QA hooks (DEBUG only, alongside -tab / -skipOnboarding): -showOnboarding forces
the cover up (the app-group onboarding flag survives an app delete, so a
reinstall alone won't bring it back), -onboardingPage N opens straight on a
page, -onboardingBestValue on|off forces the page's choice.
Verified on the simulator: with the toggle off the page shows the title,
explanation, toggle, the "set it up in Settings" note and a "Not now" button;
with it on it shows the MPG slider (45 MPG), the £/Litres picker, the fill-up
slider (£40), the "change these in Settings" note and "Continue". Page 5 is
still "You're all set". Checked on an iPhone 17 Pro and on an iPhone SE (3rd
gen) screen — nothing clips on the small one.
172 tests, 0 failures.
It was the third block in the List (after Units and Tap action), so the feature's
own controls — and the MPG/fill-up figures that drive the Best Value ranking —
sat below unrelated settings. The section (header, toggle, sliders, footer) is now
the first thing in the List; Units and Tap action follow in their existing order,
unchanged.
The move is a pure reorder: no copy, no binding, no gating changed. The section
still greys its controls out when Best Value is switched off, and the footer
narrative is unchanged.
Verified on the simulator: Settings opens with Fuel Savings -> Best Value ->
Average fuel economy / 45 MPG, with Units and Tap action below.
Following the sort-segment rename, the rest of the user-facing "Worth the Drive"
copy moves to "Best Value".
- Settings: the toggle is now just "Best Value" (was "Enable Worth the Drive"),
and the narrative footer opens "Best Value estimates fuel cost only, …".
- More info sheet: the section header is "Best Value" (was "Worth the drive?"),
and the section itself is now conditional. `fuelSavings` is nil whenever the
feature is off — `savingsLookup` returns nil when it is not configured — so
the heading is never left dangling over an empty section while the feature is
disabled.
- The unavailable text reads "Best Value unavailable: …".
- Comments and doc comments that named the sort were updated so they match the
UI instead of contradicting it.
Deliberately unchanged: the enum's raw value stays `worthTheDrive`, so stored
sort preferences and widget configs keep decoding, and FuelSavingsStatus keeps
its verdict wording ("Worth the drive" / "Not worth the drive") — that describes
a station's verdict rather than the feature, and is not shown in the UI.
Verified on the simulator: with the feature OFF the more info sheet shows
Address / Distance / Directions and no heading at all; with it ON the sheet
shows the "Best Value" section; Settings reads "Fuel Savings" / "Best Value"
with no "Enable" anywhere. 172 tests, 0 failures.
The third sort segment, the caption line it drives on the Stations tab, and the
Settings sentence about sorting now read "Best Value" — that is
SortMode.worthTheDrive.displayName plus the two copy sites that name the sort.
The feature that backs it keeps the name "Worth the Drive": the Settings toggle
("Enable Worth the Drive"), the Fuel Savings section header and footer, the sheet
header "Worth the drive?", the "Worth the Drive unavailable: …" text and
FuelSavingsStatus.worthTheDrive's own wording are all unchanged.
The enum's raw value stays `worthTheDrive`, so stored sort preferences and widget
configs keep decoding — only the label moved.
3 new tests pin the three sort names, the stability of the raw values, and the
fact that the feature's own wording did not change (172 total, 0 failures).
Verified on the simulator: the Stations segmented control reads
Closest | Cheapest | Best Value.
The sheet's header (navigationTitle, .inline) shows the station name, and the
address row no longer leads with the name either, so the Name row restated the
header immediately above the address. The section now opens straight with
Address; distance, Worth the drive and the buttons are untouched.
Verified on the simulator: the sheet reads "Sainsbury's Halifax" in the header
with rows "Address / WADE STREET, HX1 1SB" and "Distance / 0.5 mi", and no Name
row. No other surface in the app prints a Name row.
Two things the listing row was saying twice, or too loosely.
- The verdict capsule used a Label, and a Label lays its icon and title out
across the width it is given: in a listing row that left 22pt of empty space
between the symbol and "Save £1.07 after travel". It is now an HStack with
an explicit 3pt spacing (5pt in the detail sheet), so the text sits beside its
icon and the capsule background hugs the pair. Measured on the same row: the
capsule text moved x 412 -> 341 and the pill 270-831 -> 270-691.
- The address line printed the station name a second time. The official Fuel
Finder address field usually opens with the station's own name ("CHIDSWELL
SERVICE STATION, LEEDS ROAD, DEWSBURY, WF12 7QW" for "Jet Chidswell"): 14% of
the dump's addresses start with the exact name, and 13% also end with the
postcode the row appended again. StationAddressLine (new, in Shared/, so the
row and the detail sheet share one rule) drops a leading repeat of the name
and writes the postcode exactly once.
The rules are deliberately conservative: a leading segment carrying a house
number is a real street address and is left alone ("41 ANNACLOY RD ANNACLOY"),
and a partial-word match ("Jet" against "JETSON FILLING STATION") never cuts
into a word. 14 new tests (169 total, 0 failures) pin the shapes found in the
real dump as well as the examples above.
Verified on the simulator: the first listing row's second line went from
"CHIDSWELL SERVICE STA..." to "LEEDS ROAD, DEWSBURY...", and the detail sheet
reads "Sainsbury's Halifax / WADE STREET, HX1 1SB".
With "Enable Worth the Drive" off, the MPG slider, the fill-up unit picker
and the fill-up slider stayed live — editable settings for a switched-off
feature. They now sit in a Group disabled by `enabled`, so they grey out but
stay on screen and keep their values (the same rule as the distance picker
in Closest mode), and re-enabling restores exactly what was there.
The surfaces that USE the feature were already gated on `isConfigured`
(which includes `enabled`), so the in-list fill-up control and the Worth the
Drive sort option still disappear entirely rather than greying out.
Verified on the simulator with the toggle off vs forced on: the MPG slider
row and the unit picker row both measurably dim — MPG row mean RGB
33.06/35.62/39.49 off vs 37.61/42.70/48.43 on; picker 40.00/40.00/42.62 vs
53.35/53.36/56.82 — while the toggle row itself changes as expected
(54.85/64.77/58.96 with the switch on).
The two Fuel Savings figures and the in-list fill-up control were text
fields. A typed figure could sit outside the slider's own bounds, so the
control and the number it claimed to show could disagree, and the decimal
pad needed a Done button to escape.
- Settings: "Average fuel economy" and "Typical fill-up" are now sliders
with a read-out ("45 MPG", "£40" / "40 L") in place of the field. The
warning copy reads "Set a realistic..." rather than "Enter...".
- FuelSavingsAdjustmentView (shared by the Stations Worth-the-Drive header
and the Favourites tab) drops its text field and gains the same read-out;
the typed-value machinery and the -focusFillAmount QA hook go with it.
- Slider bounds live in FuelSavingsCalculator (fillAmountSliderRange/Step,
mpgSliderRange/Step) so the Settings control and the in-list control can
never offer different ranges, and the fill-up slider range stays inside
the calculator's validity ceiling (asserted by test).
- Two tests pin those invariants: every slider position is a valid amount,
and both MPG bounds are valid MPG values. 155 tests, 0 failures.
- Comments that described the removed fields were updated; the keyboard
Done-bar plumbing is kept (no numeric field remains in the app, so it can
no longer fire) rather than deleted, so any field added later still has an
escape route.
Verified on the simulator: Settings shows "Average fuel economy / 45 MPG"
with no field, and the Worth-the-Drive fill-up control shows the unit picker
with a "£40" read-out and a slider. The Settings "Typical fill-up" row sits
below the fold on every simulator available here (and synthetic input cannot
scroll it), so those pixels are unverified.
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.
