export const getUserLocation = (user) => async dispatch => {

   // asking user for permission to fetch thier current location
   let { status } = await Permissions.askAsync(Permissions.LOCATION);
   if(status !== 'granted'){
     dispatch({ type: USER_DENIED_ACCESS })
   }else {
     if(Platform.OS !== 'ios'){
      // if AndroiedLocation is GPS is closed open location form settings page
       const AndroiedLocation   = await Location.getProviderStatusAsync();

         if(!testo.locationServicesEnabled){
           await IntentLauncherAndroid.startActivityAsync(
              IntentLauncherAndroid.ACTION_LOCATION_SOURCE_SETTINGS
            )
         }
     }
     let location = await Location.getCurrentPositionAsync({enableHighAccuracy: true})
     let locationArray = [ 37.4015, -122.104641]
     let uid = user.uid

     // saving loaction to database using geoFire
     const geoFireRef = await new GeoFire(firebase.database().ref('geoData'))
     geoFireRef.set(uid, locationArray)
     dispatch({ type: FETCHED_USER_LOCATION_SUCCESSFULLY, payload: location })
   }
}