feat: add configurable wind units

components/settings/settings-page.tsx

@@ -1,7 +1,7 @@
 "use client";
 
 import { useEffect, useMemo, useState } from "react";
-import { Bell, BellRing, Clock3, Languages, MapPinned, Palette, Settings, Smartphone } from "lucide-react";
+import { Bell, BellRing, Clock3, Languages, MapPinned, Palette, Settings, Smartphone, Wind } from "lucide-react";
 import type { LucideIcon } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { Card } from "@/components/ui/card";
@@ -15,7 +15,9 @@ import { locateSynopStations } from "@/lib/location-utils";
 import { decodeBase64UrlKey, deletePushSubscription, fetchVapidPublicKey, savePushSubscription, sendTestPushNotification } from "@/lib/notification-api";
 import { formatProvinceName, getProvinceForSelection, PROVINCES } from "@/lib/provinces";
 import { useWeatherStore } from "@/lib/store";
+import { WIND_SPEED_UNITS } from "@/lib/weather-utils";
 import type { Province } from "@/types/province";
+import type { WindSpeedUnit } from "@/types/units";
 
 type NotificationSupportStatus = "checking" | "unconfigured" | "unsupported" | "needs-install" | "default" | "denied" | "granted";
 
@@ -100,6 +102,12 @@ function NotificationSwitchLabel({ icon: Icon, title, description, checked, disa
   );
 }
 
+const windSpeedUnitKeys: Record<WindSpeedUnit, "settings.units.wind.ms" | "settings.units.wind.kmh" | "settings.units.wind.mph"> = {
+  ms: "settings.units.wind.ms",
+  kmh: "settings.units.wind.kmh",
+  mph: "settings.units.wind.mph",
+};
+
 export function SettingsPage() {
   const { language, t } = useI18n();
   const [notificationStatus, setNotificationStatus] = useState<NotificationSupportStatus>("checking");
@@ -116,11 +124,13 @@ export function SettingsPage() {
   const tomorrowBriefEnabled = useWeatherStore((state) => state.tomorrowBriefNotificationsEnabled);
   const provinceMode = useWeatherStore((state) => state.warningNotificationProvinceMode);
   const manualProvince = useWeatherStore((state) => state.warningNotificationProvince);
+  const windSpeedUnit = useWeatherStore((state) => state.windSpeedUnit);
   const setNotificationsEnabled = useWeatherStore((state) => state.setWarningNotificationsEnabled);
   const setMorningBriefEnabled = useWeatherStore((state) => state.setMorningBriefNotificationsEnabled);
   const setTomorrowBriefEnabled = useWeatherStore((state) => state.setTomorrowBriefNotificationsEnabled);
   const setProvinceMode = useWeatherStore((state) => state.setWarningNotificationProvinceMode);
   const setManualProvince = useWeatherStore((state) => state.setWarningNotificationProvince);
+  const setWindSpeedUnit = useWeatherStore((state) => state.setWindSpeedUnit);
 
   const selectedStation = stations?.find((station) => station.id === selectedStationId)
     ?? stations?.find((station) => station.id === DEFAULT_STATION_ID)
@@ -170,6 +180,7 @@ export function SettingsPage() {
         longitude: notificationLongitude,
         locationName: notificationLocationName,
         countyTeryt: notificationCountyTeryt,
+        windSpeedUnit,
       }).catch(() => undefined);
     }
 
@@ -177,7 +188,7 @@ export function SettingsPage() {
     return () => {
       cancelled = true;
     };
-  }, [effectiveProvince, language, morningBriefEnabled, notificationCountyTeryt, notificationLatitude, notificationLocationName, notificationLongitude, notificationStatus, notificationsEnabled, tomorrowBriefEnabled, vapidPublicKey]);
+  }, [effectiveProvince, language, morningBriefEnabled, notificationCountyTeryt, notificationLatitude, notificationLocationName, notificationLongitude, notificationStatus, notificationsEnabled, tomorrowBriefEnabled, vapidPublicKey, windSpeedUnit]);
 
   const notificationStatusLabel = useMemo(() => {
     switch (notificationStatus) {
@@ -236,6 +247,7 @@ export function SettingsPage() {
         longitude: notificationLongitude,
         locationName: notificationLocationName,
         countyTeryt: notificationCountyTeryt,
+        windSpeedUnit,
       });
       setNotificationsEnabled(true);
       setNotificationMessage(t("settings.notifications.saveSuccess"));
@@ -298,6 +310,7 @@ export function SettingsPage() {
         longitude: notificationLongitude,
         locationName: notificationLocationName,
         countyTeryt: notificationCountyTeryt,
+        windSpeedUnit,
       });
     } catch {
       setNotificationMessage(t("settings.notifications.saveError"));
@@ -318,6 +331,7 @@ export function SettingsPage() {
         longitude: notificationLongitude,
         locationName: notificationLocationName,
         countyTeryt: notificationCountyTeryt,
+        windSpeedUnit,
       });
     } catch {
       setNotificationMessage(t("settings.notifications.saveError"));
@@ -339,6 +353,26 @@ export function SettingsPage() {
         <SettingsRow icon={Palette} title={t("settings.theme.title")} description={t("settings.theme.description")}>
           <ThemeToggle />
         </SettingsRow>
+        <SettingsRow icon={Wind} title={t("settings.units.wind.title")} description={t("settings.units.wind.description")}>
+          <div className="surface-control inline-flex rounded-control p-1" role="radiogroup" aria-label={t("settings.units.wind.label")}>
+            {WIND_SPEED_UNITS.map((unit) => (
+              <button
+                key={unit}
+                type="button"
+                role="radio"
+                aria-checked={windSpeedUnit === unit}
+                className={`rounded-[calc(var(--radius-control)-0.25rem)] px-3 py-1.5 text-sm font-medium transition-colors focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-accent ${
+                  windSpeedUnit === unit
+                    ? "bg-accent text-accent-foreground shadow-soft"
+                    : "text-muted hover:text-foreground"
+                }`}
+                onClick={() => setWindSpeedUnit(unit)}
+              >
+                {t(windSpeedUnitKeys[unit])}
+              </button>
+            ))}
+          </div>
+        </SettingsRow>
       </Card>
 
       <Card className="p-4 sm:p-5">