LUISを使って頭の悪いLINE Botを作ってみよう！：特集： 新たなアプリ「ボット」の時代（4/4 ページ）

private async Task<LuisResponse> GetLuisResponseAsync(string text)
{
  var url = "LUISアプリのURLとクエリ" + HttpUtility.UrlEncode(text);
  var textdata = await CallRestAPIAsync(url);
  var result = JsonConvert.DeserializeObject<LuisResponse>(textdata);
  return result;
}

public class LuisIntent
{
  public string intent { get; set; }
  public double score { get; set; }
}

public class LuisEntity
{
  public string entity { get; set; }
  public string type { get; set; }
  public int startIndex { get; set; }
  public int endIndex { get; set; }
  public double score { get; set; }
}

public class LuisResponse
{
  public string query { get; set; }
  public LuisIntent topScoringIntent { get; set; }
  public List<LuisIntent> intents { get; set; }
  public List<LuisEntity> entities { get; set; }
}

private async Task<string> CallRestAPIAsync(string url)
{
  var wc = new WebClient();
  var response = await wc.DownloadDataTaskAsync(url);
  var enc = System.Text.Encoding.GetEncoding("utf-8");
  return enc.GetString(response);
}

private async Task<LocationAndCategory> GetLocationAndCategoryAsync(
  LuisResponse luisres, List<LocaSmaData> locasmadata)
{
  var location = luisres.entities.Find(x => x.type == "Location")?.entity;
  var categoryname = locasmadata[0].items[0].name;
  var categoryid = locasmadata[0].items[0].id;
  double lat = 0.0;
  double lon = 0.0;
  if (location != null)
  {
    var url = "Google Geocoding APIのURLおよびクエリ" + location;
    var text = await CallRestAPIAsync(url);
    var tmp = JsonConvert.DeserializeObject<GeoData>(text);
    if (tmp.results.Count != 0)
    {
      lat = tmp.results[0].geometry.location.lat;
      lon = tmp.results[0].geometry.location.lng;
    }
  }
  return new LocationAndCategory()
  {
    CategoryId = categoryid,
    CategoryName = categoryname,
    Location = location,
    Lat = lat,
    Lon = lon
  };
}

private string MakeMessage(LocationAndCategory locandcat)
{
  var message = "";

  if (locandcat.Location != null && !locandcat.Location.Contains("近く"))
  {
    message = $"{locandcat.Location}で{locandcat.CategoryName}をお探しですか？" +
        $"https://www.locationsmart.org/map.html?id={locandcat.CategoryId}" +
        $"&lat={locandcat.Lat}&lon={locandcat.Lon}";
  }
  else
  {
    message = $"{locandcat.CategoryName}をお探しですか？" +
        $"https://www.locationsmart.org/map.html?id={locandcat.CategoryId}";
  }
  return message;
}