private async Task<PieBotData> GetOrCreatePiesAsync(IStore blobStore)
{
PieBotData pies;
if (!await blobStore.ExistsAsync(this.GeneralContainer, this.PieBlob).ConfigureAwait(false))
{
pies = new PieBotData()
{
KnownPies = new List<Pie>(),
CreatedPies = new Dictionary<DateTime, string>(),
};
}
else
{
pies = await blobStore.GetAsync<PieBotData>(this.GeneralContainer, this.PieBlob).ConfigureAwait(false);
}
return pies;
}
private DataUpdateResponse AddPieHistoryAction(PieBotData pies, IEnumerable<string> arguments)
{
if (arguments.Count() < 2)
{
return new DataUpdateResponse(false, "Did not find enough elements to add historical pie information!");
}
string pieName;
string newPieName = string.Join(" ", arguments.Skip(1));
DateTime pieCreationTime;
bool parsedCreationTime = DateTime.TryParse(arguments.First(), out pieCreationTime);
if (!parsedCreationTime)
{
return new DataUpdateResponse(false, "Could not parse when the historical pie was created!");
}
else if (pies.CreatedPies.TryGetValue(pieCreationTime, out pieName))
{
return new DataUpdateResponse(false, $"The {pieName} pie was create on this date. This conflicts with new pie {newPieName}. Please choose a slightly different time.");
}
pies.CreatedPies.Add(pieCreationTime, newPieName);
return new DataUpdateResponse(true, $"The {newPieName} historical pie was added.");
}
public async Task<ActivityResponse> ProcessActivityAsync(IStore blobStore, ActivityRequest request)
{
PieBotData pies = await this.GetOrCreatePiesAsync(blobStore).ConfigureAwait(false);
// Preprocess input text
string[] input = request.SanitizedText.Split(new[] { ' ', '\t', '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
if (input.Length == 0)
{
return new ActivityResponse("I could not understand the action to take on the pies.");
}
string command = input.First().ToLowerInvariant(); // All the commands are in ASCII, so we can use ToLower instead of ToUpper
IEnumerable<string> arguments = input.Skip(1);
// Perform the requested command
DataUpdateResponse response;
switch (command)
{
case "add":
response = AddPieAction(pies.KnownPies, arguments);
break;
case "vote":
case "upvote":
response = VotePieAction(pies.KnownPies, request.From, "upvote", (pie) => pie.Upvotes, arguments);
break;
case "dvote":
case "downvote":
response = VotePieAction(pies.KnownPies, request.From, "downvote", (pie) => pie.Downvotes, arguments);
break;
case "clearvote":
response = ClearVoteAction(pies.KnownPies, arguments);
break;
case "rank":
response = new DataUpdateResponse(false, RankAction(pies.KnownPies, input));
break;
case "list":
// List out pies and how many were created.
response = new DataUpdateResponse(false, "**Pies**:\n\n" + string.Join("\n\n", pies.KnownPies.OrderBy(pie => pie.Name).Select(pie => $"{pie.Name}: {pies.CreatedPies.Count(item => pie.Name.Equals(item.Value, StringComparison.OrdinalIgnoreCase))}")));
break;
case "addhistory":
response = AddPieHistoryAction(pies, arguments);
break;
case "history":
response = new DataUpdateResponse(false, "**Created Pies**:\n\n" + string.Join("\n\n", pies.CreatedPies.OrderByDescending(pie => pie.Key).Select(pie => $"{pie.Key.ToString("MM/dd/yyyy")}: {pie.Value}")));
break;
case "help":
response = new DataUpdateResponse(false, HelpAction());
break;
default:
response = new DataUpdateResponse(false, "I did not understand the action you want me to take on pies!");
break;
}
// Save if necessary and return
if (response.UpdateData)
{
await blobStore.CreateOrUpdateAsync(this.GeneralContainer, this.PieBlob, pies).ConfigureAwait(false);
}
return new ActivityResponse(response.Response);
}
