private void ExtractSearchParameters()
{
var qs = NavigationContext.QueryString;
var searchParam = new EventSearchParams();
searchParam.Keyword = qs["keyword"] != null ? qs["keyword"] : string.Empty;
searchParam.Category = qs["category"] != null ? qs["category"] : "All";
searchParam.Location = qs["location"] != null ? qs["location"] : string.Empty;
searchParam.Date = qs["date"] != null ? qs["date"] : string.Empty;
searchParam.Within = 0; //
Messenger.Default.Send<EventSearchParams>(searchParam, "SearchParams");
}
public void GetEvents(EventSearchParams searchParams, Action<Api.EventSet> onGetCompleted = null, Action onBegin = null, Action<Exception> onError = null, Action onFinally = null)
{
if (onBegin != null)
onBegin();
if (onGetCompleted != null)
{
const int total = 20;
Api.EventSet eventSet = new Api.EventSet();
var events = new Event[total];
for (int i = 0; i < total; i++)
{
events[i] = new Event
{
Id = string.Format("{0} - {1}", "event", i),
CityName = "City " + i,
Country = "Country-" + i,
Description = "Description-" + i,
Latitude = "3430.0",
Longitude = "89.023",
PostalCode = "783" + i,
Price = i.ToString(),
RecurString = "Recuring String " + i,
StartTime = DateTime.Now.ToLongDateString(),
StopTime = DateTime.Now.AddDays(2).ToLongDateString(),
Title = "Title - " + i,
Url = "http://example.com",
VenueAddress = "Venue Address " + i,
VenueName = "Venue name " + i
};
}
eventSet.Events = events;
onGetCompleted(eventSet);
}
if (onFinally != null)
onFinally();
}
private void GetEvents(EventSearchParams esp = null)
{
if (esp == null) return;
Events.Clear();
this._service.GetEvents(esp, eventSet =>
{
NoEventsFound = false;
if (eventSet != null && eventSet.Events.Length != 0)
{
foreach (var e in eventSet.Events)
{
Events.Add(e);
}
IsDataLoaded = true;
}
else
{
NoEventsFound = true;
}
},
delegate()
{
IsEventsLoading = true;
},
delegate(Exception exception)
{
System.Diagnostics.Debug.WriteLine(exception);
},
delegate()
{
IsEventsLoading = false;
});
}
private void GetEvents(string date, string categoryId)
{
EventSearchParams searchParams = new EventSearchParams();
searchParams.Category = categoryId;
searchParams.Date = date;
searchParams.Location = string.Format("{0},{1}", AppState.Latitude, AppState.Longitude);
this._service.GetEvents(searchParams, eventSet =>
{
NoEventsFound = false;
if (eventSet != null && eventSet.Events.Length != 0)
{
foreach (var e in eventSet.Events)
{
Events.Add(e);
}
IsDataLoaded = true;
}
else
{
NoEventsFound = true;
}
},
delegate()
{
IsEventsLoading = true;
},
delegate(Exception exception)
{
System.Diagnostics.Debug.WriteLine(exception);
},
delegate()
{
IsEventsLoading = false;
});
}
private void LoadFeaturedEvents()
{
this.FeaturedEvents = new ObservableCollection<Event>();
// Sample data; replace with real data
if (DesignerProperties.IsInDesignTool || this.IsInDesignMode)
{
for (int i = 0; i < 10; i++)
{
this.FeaturedEvents.Add(new Event
{
Title = "Featured event " + i.ToString(),
Country = "Finland" + i.ToString(),
CityName = "Helsinki",
StartTime = DateTime.Today.ToShortDateString()
});
}
}
else
{
EventSearchParams searchParams = new EventSearchParams();
searchParams.Location = string.Format("{0},{1}", AppState.Latitude, AppState.Longitude);
searchParams.Within = 250;
searchParams.Date = DateTime.Today.ToShortDateString();
_service.GetEvents(searchParams, eventSet =>
{
NoEventsFound = false;
if (eventSet != null && eventSet.Events.Length != 0)
{
foreach (var e in eventSet.Events)
{
FeaturedEvents.Add(e);
}
}
else
{
NoEventsFound = true;
}
},
delegate
{
IsFeaturedEventsLoading = true;
},
delegate(Exception exception)
{
System.Diagnostics.Debug.WriteLine(exception);
},
delegate
{
IsFeaturedEventsLoading = false;
});
}
}
public void GetEvents(EventSearchParams searchParams, Action<EventSet> onGetCompleted = null, Action onBegin = null, Action<Exception> onError = null, Action onFinally = null)
{
if (searchParams == null)
throw new ArgumentNullException("Search paramater cannot be null");
WebClient webClient = new WebClient();
webClient.OpenReadCompleted += delegate(object sender, OpenReadCompletedEventArgs e)
{
try
{
if (e.Error != null)
{
if (onError != null)
{
onError(e.Error);
}
return;
}
using (XmlReader xmlReader = XmlReader.Create(e.Result))
{
var eventSet = (EventSet)_xmlSerializer.Deserialize(xmlReader);
if (onGetCompleted != null)
{
onGetCompleted(eventSet);
}
}
}
finally
{
if (onFinally != null)
{
onFinally();
}
}
};
if (onBegin != null)
{
onBegin();
}
var url = string.Empty;
if (searchParams.Within != 0)
url = GetEventSearchUrl(searchParams);
else
url = GetEventSearchUrl(searchParams, true);
webClient.OpenReadAsync(new Uri(url));
}
private string GetEventSearchUrl(EventSearchParams esp, bool nonGeo = false)
{
if (string.IsNullOrEmpty(API_KEY))
throw new InvalidOperationException("ApiKey is invalid.");
if (!nonGeo)
//var str = string.Format(_eventSearchUrlFormat, API_KEY, esp.Location, esp.Category, esp.Date, esp.SortOrder.ToString(), esp.SortDirection.ToString(), esp.PageSize, esp.Within);
return string.Format(_eventSearchUrlFormat,
API_KEY, esp.Location,
esp.Category, esp.Date,
esp.SortOrder.ToString(),
esp.SortDirection.ToString(),
esp.PageSize,
esp.Within);
else
return string.Format(_eventSearchUrlFormatNonGeo,
API_KEY, esp.Location,
esp.Category, esp.Date,
esp.SortOrder.ToString(),
esp.SortDirection.ToString(),
esp.PageSize);
}