public static async Task <WebhookApplication> SwitchAppsAsync(IEnumerable <WebhookEvent> events, LineMessagingClient line, TableStorage <BotStatus> botStatus, BlobStorage blobStorage, TraceWriter log)
{
var ev = events.First();
var status = await botStatus.FindAsync(ev.Source.Type.ToString(), ev.Source.Id);
if (status == null)
{
status = new BotStatus()
{
SourceType = ev.Source.Type.ToString(),
SourceId = ev.Source.Id,
CurrentApp = "@"
};
}
var message = (ev as MessageEvent)?.Message as TextEventMessage;
var text = message?.Text;
if (text == null || !text.StartsWith("@"))
{
text = status.CurrentApp;
}
text = text.Trim().ToLower();
WebhookApplication app = null;
if (text != "@richmenu")
{
try
{
await line.UnLinkRichMenuFromUserAsync(ev.Source.Id);
}
catch (LineResponseException e)
{
if (e.StatusCode != HttpStatusCode.NotFound)
{
throw;
}
}
}
switch (text)
{
case "@":
app = new LineBotApp(line, botStatus, blobStorage, log);
break;
case "@buttons":
app = new ButtonsTemplateSampleApp(line, blobStorage, log);
break;
case "@carousel":
app = new CarouselTemplateSampleApp(line, blobStorage, log);
break;
case "@postback":
app = new PostbackMessageSampleApp(line, botStatus, log);
break;
case "@imagemap":
app = new ImagemapSampleApp(line, blobStorage, log);
break;
case "@imagecarousel":
app = new ImageCarouselSampleApp(line, blobStorage, log);
break;
case "@datetime":
app = new DateTimePickerSampleApp(line, log);
break;
case "@richmenu":
app = new RichMenuSampleApp(line, log);
break;
default:
text = "@";
app = new LineBotApp(line, botStatus, blobStorage, log);
break;
}
status.CurrentApp = text;
await botStatus.UpdateAsync(status);
return(app);
}