public void Within230Miles()
{
IDistanceCalculator calculator = new DistanceInMilesCalculator();
var baseLocation = new Coordinate(-0.118092f, 51.509865f);
var userLocation = new Coordinate(0.380950f, 54.887292f);
var value = calculator.GetDistance(baseLocation, userLocation);
Assert.AreEqual(234.2, value, 0.5f);
}
public void Within21Miles()
{
IDistanceCalculator calculator = new DistanceInMilesCalculator();
var baseLocation = new Coordinate(-0.118092f, 51.509865f);
var userLocation = new Coordinate(0.423114f, 51.438095f);
var value = calculator.GetDistance(baseLocation, userLocation);
Assert.AreEqual(23.8, value, 0.5f);
}
public void Within37Miles()
{
IDistanceCalculator calculator = new DistanceInMilesCalculator();
var baseLocation = new Coordinate(-0.118092f, 51.509865f);
var userLocation = new Coordinate(0.219620f, 52.016023f);
var value = calculator.GetDistance(baseLocation, userLocation);
Assert.AreEqual(37.8, value, 0.5f);
}
public void Within11Miles()
{
IDistanceCalculator calculator = new DistanceInMilesCalculator();
var baseLocation = new Coordinate(-0.118092f, 51.509865f);
var userLocation = new Coordinate(-0.374243f, 51.502539f);
var value = calculator.GetDistance(baseLocation, userLocation);
Assert.AreEqual(11.0, value, 0.5f);
}
/// <summary>
/// Use coordinates city and distance to search for users who are currently from or within London
/// </summary>
/// <param name="city"></param>
/// <param name="baseCoordinate"></param>
/// <param name="distance"></param>
/// <returns></returns>
/// <exception cref="HttpResponseException"></exception>
public List <UserModel> GetUsersWithinOrCloseToCity(string city, Coordinate baseCoordinate, float distance)
{
var request = new RestRequest("users", Method.GET);
var response = _client.Execute(request);
if ((!response.IsSuccessful))
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
var allUsers = JsonConvert.DeserializeObject <List <UserModel> >(response.Content);
var usersWithinCity = GetUsersWithinCity(city);
IDistanceCalculator calculator = new DistanceInMilesCalculator();
//LINQ query to pull users whose current position is within 50 miles of London, or who are listed as being from London
//and then return as a list
return((from user in allUsers let userCurrentLocation = new Coordinate(user.longitude, user.latitude)
where calculator.IsWithinDistance(distance, baseCoordinate, userCurrentLocation) ||
usersWithinCity.Contains(user.id) select user).ToList());
}
