Waseel: driver app, dispatch, POI suggestions, map fixes

lib/use-location-permission.ts

@@ -0,0 +1,54 @@
+import * as Location from "expo-location";
+import { Linking } from "react-native";
+import { useCallback, useEffect, useState } from "react";
+
+export type LocationPermissionStatus =
+  /** Permission granted. */
+  | "granted"
+  /** The user denied but we can still ask again. */
+  | "denied"
+  /** The user denied permanently ("Don't ask again") — must go to Settings. */
+  | "blocked"
+  /** First read hasn't completed. */
+  | "unknown";
+
+/**
+ * Reports the foreground location permission as it is right now, so the
+ * Settings screen can show the real state without re-running the request
+ * prompt. Call `refresh()` again on focus (e.g. with `useFocusEffect`) so the
+ * row updates when the user comes back from the system settings screen.
+ */
+export const useLocationPermission = () => {
+  const [status, setStatus] = useState<LocationPermissionStatus>("unknown");
+
+  const refresh = useCallback(async () => {
+    try {
+      const result = await Location.getForegroundPermissionsAsync();
+
+      if (result.granted) {
+        setStatus("granted");
+      } else if (result.canAskAgain) {
+        setStatus("denied");
+      } else {
+        setStatus("blocked");
+      }
+    } catch (error) {
+      console.warn("[LOCATION_PERMISSION]: ", error);
+      setStatus("unknown");
+    }
+  }, []);
+
+  const openSettings = useCallback(async () => {
+    try {
+      await Linking.openSettings();
+    } catch (error) {
+      console.warn("[OPEN_SETTINGS]: ", error);
+    }
+  }, []);
+
+  useEffect(() => {
+    void refresh();
+  }, [refresh]);
+
+  return { status, refresh, openSettings };
+};