Widgets configured per-instance via App Intent

FuelPriceWidget now uses AppIntentConfiguration with a per-widget
FuelBoardWidgetConfigurationIntent (fuel + sort). Each widget placed on
the home screen carries its OWN fuel type (Unleaded/Premium/Diesel) and
ordering (Cheapest/Closest), edited by long-press -> Edit Widget —
independent of the app's selection, so multiple widgets can show
different data side by side. Widget no longer reads the app's selected
fuel. 35 tests pass.

FuelBoardWidgets/FuelPriceWidget.swift

@@ -1,13 +1,19 @@
 import WidgetKit
 import SwiftUI
+import AppIntents
 
-// FuelBoard widget — cheapest petrol stations near you.
+// FuelBoard widget — petrol stations near you.
 //   systemMedium: top 3-4 stations with price + distance, each row opens Maps
-//   systemSmall:  single cheapest station, whole widget opens Maps
+//   systemSmall:  single station, whole widget opens Maps
 // Taps deep-link to Apple Maps directions (http://maps.apple.com/?daddr=).
 // Note: on the home screen Link opens Maps directly. Inside CarPlay the widget
 // renders but can't launch Maps (widgets can only launch their own CarPlay app).
 //
+// Each widget instance is configured INDEPENDENTLY via its own App Intent
+// (long-press → Edit Widget): fuel type (Unleaded/Premium/Diesel) and sort
+// (Cheapest/Closest). Widgets no longer depend on the app's selected fuel —
+// you can place several widgets showing different fuels/orders side by side.
+//
 // Location flow: the provider requests location itself (async, timeout-bounded).
 // On success it caches the fix in the shared store for the app; on failure
 // (no permission yet / timeout) it falls back to the app's cached location,
@@ -18,53 +24,62 @@ struct FuelPriceWidget: Widget {
     let kind = "FuelPriceWidget"
 
     var body: some WidgetConfiguration {
-        StaticConfiguration(kind: kind, provider: FuelPriceTimelineProvider()) { entry in
+        AppIntentConfiguration(
+            kind: kind,
+            intent: FuelBoardWidgetConfigurationIntent.self,
+            provider: FuelPriceTimelineProvider()
+        ) { entry in
             FuelPriceWidgetView(entry: entry)
                 .containerBackground(for: .widget) {
                     Color(.systemBackground)
                 }
         }
         .configurationDisplayName("FuelBoard Prices")
-        .description("The cheapest fuel near you. Tap a station for directions.")
+        .description("Fuel prices near you. Configure fuel + sort per widget.")
         .supportedFamilies([.systemSmall, .systemMedium])
     }
 }
 
 struct FuelPriceEntry: TimelineEntry {
     let date: Date
-    let stations: [FuelStation]   // already filtered + sorted for the selected fuel
+    let stations: [FuelStation]   // already filtered + sorted per config
     let fuel: FuelType
+    let sort: SortMode            // per-widget: cheapest | closest
     let location: Coordinate?
     let locationSource: String    // "live" | "cached" | "none"
     let unit: DistanceUnit        // user's display unit for distances
 }
 
-struct FuelPriceTimelineProvider: TimelineProvider {
+struct FuelPriceTimelineProvider: AppIntentTimelineProvider {
     func placeholder(in context: Context) -> FuelPriceEntry {
-        let fuel = FuelStore.loadSelectedFuel()
         let unit = FuelStore.loadDistanceUnit()
         let sample = SampleFuelProvider.sampleStations
-            .filter { $0.prices[fuel] != nil }
+            .filter { $0.prices[.e10] != nil }
-            .sorted { $0.prices[fuel]! < $1.prices[fuel]! }
+            .sorted { $0.prices[.e10]! < $1.prices[.e10]! }
-        return FuelPriceEntry(date: Date(), stations: Array(sample.prefix(4)), fuel: fuel, location: nil, locationSource: "none", unit: unit)
+        return FuelPriceEntry(
+            date: Date(), stations: Array(sample.prefix(4)),
+            fuel: .e10, sort: .cheapest,
+            location: nil, locationSource: "none", unit: unit
+        )
     }
 
-    func getSnapshot(in context: Context, completion: @escaping (FuelPriceEntry) -> Void) {
+    func snapshot(for configuration: FuelBoardWidgetConfigurationIntent, in context: Context) async -> FuelPriceEntry {
-        Task {
+        await makeEntry(configuration: configuration)
-            completion(await makeEntry())
-        }
     }
 
-    func getTimeline(in context: Context, completion: @escaping (Timeline<FuelPriceEntry>) -> Void) {
+    func timeline(
-        Task {
+        for configuration: FuelBoardWidgetConfigurationIntent,
-            let entry = await makeEntry()
+        in context: Context
-            let nextRefresh = Calendar.current.date(byAdding: .minute, value: 15, to: Date())!
+    ) async -> Timeline<FuelPriceEntry> {
-            completion(Timeline(entries: [entry], policy: .after(nextRefresh)))
+        let entry = await makeEntry(configuration: configuration)
-        }
+        let nextRefresh = Calendar.current.date(byAdding: .minute, value: 15, to: Date())!
+        return Timeline(entries: [entry], policy: .after(nextRefresh))
     }
 
-    private func makeEntry() async -> FuelPriceEntry {
+    private func makeEntry(configuration: FuelBoardWidgetConfigurationIntent) async -> FuelPriceEntry {
-        let fuel = FuelStore.loadSelectedFuel()
+        // Per-widget config: fuel + sort come from THIS widget instance.
+        let fuel = FuelType(rawValue: configuration.fuel.rawValue) ?? .e10
+        let sort: SortMode = configuration.sort == .closest ? .closest : .cheapest
 
         // 1) Try a fresh location fix (bounded to a few seconds).
         var location = await WidgetLocationFetcher.shared.currentLocation().map {
@@ -86,7 +101,7 @@ struct FuelPriceTimelineProvider: TimelineProvider {
             FuelStore.saveLocation(lat: location.lat, lng: location.lng)
         }
 
-        // 3) Load stations, then sort by price (distance tiebreak), scoped to
+        // 3) Load stations, then sort per this widget's config, scoped to
         // the chosen search radius so the widget's "cheapest" matches
         // the app's list.
         var stations = FuelStore.loadStations()
@@ -102,20 +117,37 @@ struct FuelPriceTimelineProvider: TimelineProvider {
         }
         let filtered = stations.filter { $0.prices[fuel] != nil }
         let sorted: [FuelStation]
-        if let location {
+        switch sort {
+        case .closest:
+            // Nearest first; price only breaks ties.
+            sorted = filtered.sorted { lhs, rhs in
+                if let location {
+                    let lDist = lhs.distanceKM(to: location.lat, lng2: location.lng)
+                    let rDist = rhs.distanceKM(to: location.lat, lng2: location.lng)
+                    if lDist != rDist { return lDist < rDist }
+                }
+                return lhs.prices[fuel]! < rhs.prices[fuel]!
+            }
+        case .cheapest:
+            // Cheapest first; distance only breaks ties.
             sorted = filtered.sorted { lhs, rhs in
-                // Cheapest first; distance only breaks ties.
                 let lPrice = lhs.prices[fuel]!
                 let rPrice = rhs.prices[fuel]!
                 if lPrice != rPrice { return lPrice < rPrice }
-                return lhs.distanceKM(to: location.lat, lng2: location.lng) <
+                if let location {
-                       rhs.distanceKM(to: location.lat, lng2: location.lng)
+                    return lhs.distanceKM(to: location.lat, lng2: location.lng) <
+                           rhs.distanceKM(to: location.lat, lng2: location.lng)
+                }
+                return false
             }
-        } else {
-            sorted = filtered.sorted { $0.prices[fuel]! < $1.prices[fuel]! }
         }
 
-        return FuelPriceEntry(date: Date(), stations: Array(sorted.prefix(4)), fuel: fuel, location: location, locationSource: source, unit: FuelStore.loadDistanceUnit())
+        return FuelPriceEntry(
+            date: Date(), stations: Array(sorted.prefix(4)),
+            fuel: fuel, sort: sort,
+            location: location, locationSource: source,
+            unit: FuelStore.loadDistanceUnit()
+        )
     }
 }
 
@@ -135,20 +167,26 @@ struct FuelPriceWidgetView: View {
                         .foregroundStyle(.secondary)
                 }
             } else if family == .systemSmall {
-                singleCheapest
+                singleStation
             } else {
                 stationList
             }
         }
     }
 
-    private var singleCheapest: some View {
+    private var heading: String {
+        entry.sort == .closest
+            ? "Closest \(entry.fuel.displayName)"
+            : "Cheapest \(entry.fuel.displayName)"
+    }
+
+    private var singleStation: some View {
         let station = entry.stations[0]
         return VStack(alignment: .leading, spacing: 6) {
             HStack {
                 Image(systemName: "fuelpump.fill")
                     .foregroundStyle(.green)
-                Text("Cheapest \(entry.fuel.displayName)")
+                Text(heading)
                     .font(.caption2)
                     .foregroundStyle(.secondary)
             }
@@ -180,7 +218,7 @@ struct FuelPriceWidgetView: View {
             HStack {
                 Image(systemName: "fuelpump.fill")
                     .foregroundStyle(.green)
-                Text("Cheapest \(entry.fuel.displayName)")
+                Text(heading)
                     .font(.caption2)
                     .foregroundStyle(.secondary)
                 Spacer()

FuelBoardWidgets/WidgetConfigIntent.swift

@@ -0,0 +1,45 @@
+import AppIntents
+import Foundation
+
+// Per-widget configuration intent (iOS 17+). Every widget instance carries
+// its OWN fuel + sort choices, edited directly on the home screen (long-press
+// → Edit Widget), independent of what the app has selected. This is what
+// allows several FuelBoard widgets to show different fuels/orderings side by
+// side.
+
+enum WidgetFuel: String, AppEnum, CaseIterable, Codable {
+    case e10
+    case e5
+    case diesel
+
+    static var typeDisplayRepresentation: TypeDisplayRepresentation = "Fuel"
+
+    static var caseDisplayRepresentations: [WidgetFuel: DisplayRepresentation] = [
+        .e10: "Unleaded",
+        .e5: "Premium",
+        .diesel: "Diesel",
+    ]
+}
+
+enum WidgetSort: String, AppEnum, CaseIterable, Codable {
+    case cheapest
+    case closest
+
+    static var typeDisplayRepresentation: TypeDisplayRepresentation = "Sort by"
+
+    static var caseDisplayRepresentations: [WidgetSort: DisplayRepresentation] = [
+        .cheapest: "Cheapest",
+        .closest: "Closest",
+    ]
+}
+
+struct FuelBoardWidgetConfigurationIntent: WidgetConfigurationIntent {
+    static var title: LocalizedStringResource = "Fuel & Sort"
+    static var description = IntentDescription("Which fuel and ordering this widget shows.")
+
+    @Parameter(title: "Fuel", default: .e10)
+    var fuel: WidgetFuel
+
+    @Parameter(title: "Sort by", default: .cheapest)
+    var sort: WidgetSort
+}