public IObservable<Unit> FindRoute()
{
if (CheckCanFindRoute() != null || IsFindingRoute)
throw new InvalidOperationException();
IsFindingRoute = true;
// build SeachDescription
SearchDescription sd = new SearchDescription(
this._route,
(PreferKey)_preferType,
_time,
(TimeType)_timeType);
Setting.LastSearchDescription = sd;
Setting.LastPreferKey = sd.PreferKey;
Setting.UpdateMyRoutes(this._route);
Setting.LastResult = null;
return TransferNaviHandler.QueryTransportInfo(sd)
.Do(result => Setting.LastResult = Setting.LastResult.Append(result))
.Finally(() => IsFindingRoute = false)
.Select(_ => new Unit());
}
/// <summary>
/// 「なごや乗換案内」にクエリして結果を取得します。
/// </summary>
public static IObservable<TransportRoute> QueryTransportInfo(SearchDescription searchDescription)
{
try
{
Dictionary<string, string> postData = new Dictionary<string, string>();
// 出発・到着点、経由地
postData.Add("val_from", searchDescription.Origin);
postData.Add("val_get_from", searchDescription.Origin);
postData.Add("val_to", searchDescription.Destination);
postData.Add("val_get_to", searchDescription.Destination);
if (!String.IsNullOrEmpty(searchDescription.Via))
postData.Add("val_via", searchDescription.Via);
// 時間
switch (searchDescription.TimeType)
{
case TimeType.DepartureTime:
case TimeType.ArrivalTime:
postData.Add("val_hour", searchDescription.Time.Hour.ToString());
postData.Add("val_min", searchDescription.Time.Minute.ToString());
break;
case TimeType.FirstTrain:
case TimeType.LastTrain:
postData.Add("val_hour", LastFirstTrainHour.ToString());
postData.Add("val_min", "0");
break;
}
// 時間種別
switch (searchDescription.TimeType)
{
case TimeType.DepartureTime:
case TimeType.FirstTrain:
postData.Add("val_timekb", "DEP");
break;
case TimeType.ArrivalTime:
case TimeType.LastTrain:
postData.Add("val_timekb", "ARR");
break;
}
// 乗り換えキー
switch (searchDescription.PreferKey)
{
case PreferKey.Cheaper:
postData.Add("val_sort", "5");
break;
case PreferKey.LesserTransfer:
postData.Add("val_sort", "2");
break;
}
// バスのみ？
if (searchDescription.IsSearchOnlyBus)
postData.Add("val_bus_only", "1");
// さいごに
postData.Add("val_htmb", "result");
// ポストデータ組み立て
var postbyte =
InternalEncoding.GetBytes(
postData.Select(kv =>
kv.Key + "=" + HttpUtil.UrlEncode(kv.Value, InternalEncoding))
.JoinString("&"));
System.Diagnostics.Debug.WriteLine(postData.Select(kv =>
kv.Key + "=" + HttpUtility.UrlEncode(kv.Value))
.JoinString("&"));
var req = HttpWebRequest.CreateHttp(TransferNaviUrl);
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
return req
.UploadDataAsync(postbyte)
.Select(s =>
{
using (var sr = new StreamReader(s.GetResponseStream(), InternalEncoding))
{
return sr.ReadToEnd();
}
})
.Parse();
}
catch (Exception ex)
{
return Observable.Throw<TransportRoute>(ex);
}
}
